./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product39.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_spec4_product39.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 c228d9f74ddd17cda7010ca670107d7221f92470 .................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:10:04,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:10:04,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:10:04,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:10:04,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:10:04,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:10:04,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:10:04,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:10:04,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:10:04,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:10:04,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:10:04,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:10:04,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:10:04,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:10:04,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:10:04,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:10:04,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:10:04,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:10:04,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:10:04,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:10:04,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:10:04,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:10:04,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:10:04,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:10:04,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:10:04,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:10:04,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:10:04,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:10:04,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:10:04,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:10:04,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:10:04,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:10:04,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:10:04,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:10:04,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:10:04,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:10:04,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:10:04,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:10:04,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:10:04,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:10:04,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:10:04,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:10:04,587 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:10:04,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:10:04,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:10:04,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:10:04,591 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:10:04,591 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:10:04,592 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:10:04,592 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:10:04,592 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:10:04,592 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:10:04,593 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:10:04,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:10:04,594 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:10:04,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:10:04,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:10:04,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:10:04,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:10:04,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:10:04,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:10:04,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:10:04,596 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:10:04,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:10:04,596 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:10:04,596 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:10:04,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:10:04,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:10:04,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:10:04,597 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:10:04,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:10:04,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:10:04,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:10:04,599 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:10:04,601 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:10:04,601 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 -> c228d9f74ddd17cda7010ca670107d7221f92470 [2019-11-28 21:10:04,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:10:04,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:10:04,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:10:04,934 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:10:04,935 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:10:04,935 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2019-11-28 21:10:04,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763e3df12/e4772b72377d4d9c93a8e5a5551ae1a1/FLAG4f417ff39 [2019-11-28 21:10:05,473 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:10:05,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2019-11-28 21:10:05,490 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763e3df12/e4772b72377d4d9c93a8e5a5551ae1a1/FLAG4f417ff39 [2019-11-28 21:10:05,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763e3df12/e4772b72377d4d9c93a8e5a5551ae1a1 [2019-11-28 21:10:05,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:10:05,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:10:05,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:05,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:10:05,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:10:05,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:05" (1/1) ... [2019-11-28 21:10:05,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b836fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:05, skipping insertion in model container [2019-11-28 21:10:05,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:05" (1/1) ... [2019-11-28 21:10:05,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:10:05,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:10:06,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:06,280 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:10:06,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:06,467 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:10:06,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06 WrapperNode [2019-11-28 21:10:06,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:06,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:06,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:10:06,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:10:06,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... [2019-11-28 21:10:06,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... [2019-11-28 21:10:06,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:06,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:10:06,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:10:06,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:10:06,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... [2019-11-28 21:10:06,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... [2019-11-28 21:10:06,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... [2019-11-28 21:10:06,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... [2019-11-28 21:10:06,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... [2019-11-28 21:10:06,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... [2019-11-28 21:10:06,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... [2019-11-28 21:10:06,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:10:06,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:10:06,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:10:06,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:10:06,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:10:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:10:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:10:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:10:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:10:07,529 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:10:07,530 INFO L287 CfgBuilder]: Removed 160 assume(true) statements. [2019-11-28 21:10:07,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:07 BoogieIcfgContainer [2019-11-28 21:10:07,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:10:07,533 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:10:07,533 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:10:07,536 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:10:07,537 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:07,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:10:05" (1/3) ... [2019-11-28 21:10:07,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17e083f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:07, skipping insertion in model container [2019-11-28 21:10:07,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:07,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:06" (2/3) ... [2019-11-28 21:10:07,540 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17e083f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:07, skipping insertion in model container [2019-11-28 21:10:07,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:07,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:07" (3/3) ... [2019-11-28 21:10:07,543 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2019-11-28 21:10:07,583 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:10:07,583 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:10:07,583 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:10:07,583 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:10:07,584 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:10:07,584 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:10:07,584 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:10:07,584 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:10:07,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-28 21:10:07,633 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 21:10:07,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:07,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:07,643 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:07,643 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:07,643 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:10:07,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-28 21:10:07,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 21:10:07,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:07,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:07,651 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:07,651 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:07,657 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 16#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 19#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 13#L73true main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 39#L904true assume 0 != main_~tmp~7; 77#L881true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 40#L926-1true [2019-11-28 21:10:07,658 INFO L796 eck$LassoCheckResult]: Loop: 40#L926-1true assume !false; 73#L460true assume test_~splverifierCounter~0 < 4; 26#L461true test_~tmp~3 := test_#t~nondet36;havoc test_#t~nondet36; 59#L469true assume !(0 != test_~tmp~3); 34#L469-1true test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 82#L479true assume !(0 != test_~tmp___0~0); 75#L479-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 105#L489true assume 0 != test_~tmp___2~0; 92#L495-1true assume !(0 != ~pumpRunning~0); 61#L532true assume !(0 != ~systemActive~0); 97#L539true havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 101#L803true __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 37#L926true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 40#L926-1true [2019-11-28 21:10:07,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:07,665 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:10:07,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:07,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133403720] [2019-11-28 21:10:07,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:08,154 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:08,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:08,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1671401909, now seen corresponding path program 1 times [2019-11-28 21:10:08,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:08,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757201437] [2019-11-28 21:10:08,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:08,184 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:08,187 INFO L82 PathProgramCache]: Analyzing trace with hash 42877029, now seen corresponding path program 1 times [2019-11-28 21:10:08,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:08,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702588837] [2019-11-28 21:10:08,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:10:08,339 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702588837] [2019-11-28 21:10:08,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:08,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:10:08,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323863147] [2019-11-28 21:10:08,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:08,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:10:08,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:10:08,447 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 6 states. [2019-11-28 21:10:08,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:08,651 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2019-11-28 21:10:08,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:10:08,654 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 378 transitions. [2019-11-28 21:10:08,674 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 169 [2019-11-28 21:10:08,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 243 states and 357 transitions. [2019-11-28 21:10:08,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2019-11-28 21:10:08,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2019-11-28 21:10:08,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 357 transitions. [2019-11-28 21:10:08,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:08,696 INFO L688 BuchiCegarLoop]: Abstraction has 243 states and 357 transitions. [2019-11-28 21:10:08,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 357 transitions. [2019-11-28 21:10:08,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 144. [2019-11-28 21:10:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-28 21:10:08,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2019-11-28 21:10:08,759 INFO L711 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-11-28 21:10:08,760 INFO L591 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-11-28 21:10:08,760 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:10:08,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 210 transitions. [2019-11-28 21:10:08,764 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2019-11-28 21:10:08,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:08,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:08,766 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:08,767 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:08,767 INFO L794 eck$LassoCheckResult]: Stem: 483#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 417#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 418#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 411#L73 main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 412#L904 assume 0 != main_~tmp~7; 445#L881 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 444#L926-1 [2019-11-28 21:10:08,769 INFO L796 eck$LassoCheckResult]: Loop: 444#L926-1 assume !false; 446#L460 assume test_~splverifierCounter~0 < 4; 429#L461 test_~tmp~3 := test_#t~nondet36;havoc test_#t~nondet36; 430#L469 assume !(0 != test_~tmp~3); 438#L469-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 439#L479 assume !(0 != test_~tmp___0~0); 467#L479-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 480#L489 assume 0 != test_~tmp___2~0; 491#L495-1 assume !(0 != ~pumpRunning~0); 470#L532 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 454#L590 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret40, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 456#L564-1 assume !(0 == ~pumpRunning~0); 459#L539 havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 493#L803 __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 443#L926 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 444#L926-1 [2019-11-28 21:10:08,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:08,769 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:10:08,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:08,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98317969] [2019-11-28 21:10:08,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:08,874 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:08,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:08,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1955219778, now seen corresponding path program 1 times [2019-11-28 21:10:08,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:08,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644448696] [2019-11-28 21:10:08,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:10:08,906 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644448696] [2019-11-28 21:10:08,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:08,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:10:08,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651908030] [2019-11-28 21:10:08,907 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:10:08,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:08,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:10:08,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:10:08,912 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. cyclomatic complexity: 69 Second operand 3 states. [2019-11-28 21:10:09,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:09,045 INFO L93 Difference]: Finished difference Result 183 states and 250 transitions. [2019-11-28 21:10:09,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:10:09,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 250 transitions. [2019-11-28 21:10:09,049 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2019-11-28 21:10:09,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 250 transitions. [2019-11-28 21:10:09,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2019-11-28 21:10:09,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2019-11-28 21:10:09,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 250 transitions. [2019-11-28 21:10:09,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:09,054 INFO L688 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2019-11-28 21:10:09,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 250 transitions. [2019-11-28 21:10:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-11-28 21:10:09,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-11-28 21:10:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 250 transitions. [2019-11-28 21:10:09,063 INFO L711 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2019-11-28 21:10:09,064 INFO L591 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2019-11-28 21:10:09,064 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:10:09,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 250 transitions. [2019-11-28 21:10:09,066 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2019-11-28 21:10:09,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:09,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:09,067 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:09,067 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:09,068 INFO L794 eck$LassoCheckResult]: Stem: 822#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 750#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 751#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 744#L73 main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 745#L904 assume 0 != main_~tmp~7; 780#L881 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 778#L926-1 [2019-11-28 21:10:09,068 INFO L796 eck$LassoCheckResult]: Loop: 778#L926-1 assume !false; 781#L460 assume test_~splverifierCounter~0 < 4; 816#L461 test_~tmp~3 := test_#t~nondet36;havoc test_#t~nondet36; 892#L469 assume !(0 != test_~tmp~3); 890#L469-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 888#L479 assume !(0 != test_~tmp___0~0); 885#L479-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 841#L489 assume 0 != test_~tmp___2~0; 831#L495-1 assume !(0 != ~pumpRunning~0); 804#L532 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 789#L590 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret40, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 790#L564-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 746#L811-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 747#L816-1 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 784#L692-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 785#L692-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 725#L698-1 processEnvironment__wrappee__highWaterSensor_#t~ret40 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret40;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40; 726#L568-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 794#L539 havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 893#L803 __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 777#L926 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 778#L926-1 [2019-11-28 21:10:09,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:09,068 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:10:09,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:09,069 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380161259] [2019-11-28 21:10:09,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:09,186 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:09,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:09,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1592970094, now seen corresponding path program 1 times [2019-11-28 21:10:09,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:09,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968807589] [2019-11-28 21:10:09,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:09,212 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:09,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:09,213 INFO L82 PathProgramCache]: Analyzing trace with hash 2049041288, now seen corresponding path program 1 times [2019-11-28 21:10:09,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:09,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576736205] [2019-11-28 21:10:09,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:09,332 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:09,472 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-28 21:10:35,841 WARN L192 SmtUtils]: Spent 26.29 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:10:49,608 WARN L192 SmtUtils]: Spent 13.76 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:10:49,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:10:49 BoogieIcfgContainer [2019-11-28 21:10:49,697 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:10:49,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:10:49,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:10:49,698 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:10:49,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:07" (3/4) ... [2019-11-28 21:10:49,702 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:10:49,761 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:10:49,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:10:49,763 INFO L168 Benchmark]: Toolchain (without parser) took 43950.74 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 316.1 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -241.6 MB). Peak memory consumption was 74.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:49,764 INFO L168 Benchmark]: CDTParser took 0.20 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 21:10:49,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:49,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:49,766 INFO L168 Benchmark]: Boogie Preprocessor took 56.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:10:49,766 INFO L168 Benchmark]: RCFGBuilder took 929.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.4 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:49,767 INFO L168 Benchmark]: BuchiAutomizer took 42165.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -162.9 MB). Peak memory consumption was 382.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:49,768 INFO L168 Benchmark]: Witness Printer took 63.58 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: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:49,771 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 653.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 929.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.4 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42165.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -162.9 MB). Peak memory consumption was 382.7 MB. Max. memory is 11.5 GB. * Witness Printer took 63.58 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: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 41.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 303 SDtfs, 706 SDslu, 752 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 459]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9214} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=9214, NULL=10803, NULL=0, NULL=0, NULL=10787, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77e40425=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bd6aa8f=0, NULL=10796, methaneLevelCritical=0, tmp___0=0, tmp=0, NULL=0, NULL=0, NULL=10794, NULL=0, retValue_acc=0, tmp___1=0, NULL=10806, NULL=10798, NULL=10812, NULL=10807, tmp=0, cleanupTimeShifts=4, NULL=10808, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17ce485d=0, NULL=10792, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d84d04a=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c0c2c3e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b971c9a=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38685913=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=10790, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36e51956=0, NULL=0, NULL=0, NULL=10810, \result=0, NULL=10793, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=10799, NULL=10788, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a86e9c2=0, tmp=1, NULL=0, \result=1, NULL=10791, NULL=10811, NULL=10809, NULL=10789, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@240ddae=0, retValue_acc=1, retValue_acc=1, tmp=1, tmp___2=65, NULL=10800, tmp=1, retValue_acc=1, splverifierCounter=0, head=0, NULL=0, tmp=0, NULL=10795, NULL=0, NULL=10797, NULL=0, NULL=10801, NULL=0, NULL=0, NULL=10805, NULL=0, NULL=10802} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int pumpRunning = 0; [L525] int systemActive = 1; [L728] int waterLevel = 1; [L729] int methaneLevelCritical = 0; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L450] int splverifierCounter ; [L451] int tmp ; [L452] int tmp___0 ; [L453] int tmp___1 ; [L454] int tmp___2 ; [L457] splverifierCounter = 0 Loop: [L459] COND TRUE 1 [L461] COND TRUE splverifierCounter < 4 [L467] tmp = __VERIFIER_nondet_int() [L469] COND FALSE !(\read(tmp)) [L477] tmp___0 = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp___0)) [L487] tmp___2 = __VERIFIER_nondet_int() [L489] COND TRUE \read(tmp___2) [L532] COND FALSE !(\read(pumpRunning)) [L539] COND TRUE \read(systemActive) [L587] int tmp ; [L590] COND FALSE !(\read(pumpRunning)) [L561] int tmp ; [L564] COND TRUE ! pumpRunning [L684] int retValue_acc ; [L685] int tmp ; [L686] int tmp___0 ; [L808] int retValue_acc ; [L811] COND TRUE waterLevel < 2 [L812] retValue_acc = 1 [L813] return (retValue_acc); [L690] tmp = isHighWaterSensorDry() [L692] COND TRUE \read(tmp) [L693] tmp___0 = 0 [L697] retValue_acc = tmp___0 [L698] return (retValue_acc); [L566] tmp = isHighWaterLevel() [L568] COND FALSE !(\read(tmp)) [L919] int tmp ; [L920] int tmp___0 ; [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); [L924] tmp = getWaterLevel() [L926] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...