./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product40.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_spec2_product40.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 9c111f83061d8c18367444893b685a787d8ca976 ................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:02:50,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:02:50,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:02:50,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:02:50,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:02:50,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:02:50,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:02:50,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:02:50,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:02:50,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:02:50,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:02:50,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:02:50,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:02:50,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:02:50,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:02:50,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:02:50,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:02:50,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:02:50,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:02:50,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:02:50,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:02:50,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:02:50,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:02:50,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:02:50,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:02:50,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:02:50,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:02:50,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:02:50,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:02:50,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:02:50,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:02:50,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:02:50,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:02:50,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:02:50,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:02:50,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:02:50,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:02:50,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:02:50,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:02:50,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:02:50,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:02:50,582 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:02:50,599 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:02:50,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:02:50,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:02:50,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:02:50,601 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:02:50,601 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:02:50,601 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:02:50,601 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:02:50,602 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:02:50,602 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:02:50,602 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:02:50,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:02:50,603 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:02:50,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:02:50,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:02:50,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:02:50,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:02:50,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:02:50,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:02:50,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:02:50,604 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:02:50,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:02:50,605 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:02:50,605 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:02:50,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:02:50,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:02:50,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:02:50,606 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:02:50,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:02:50,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:02:50,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:02:50,607 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:02:50,608 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:02:50,608 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 -> 9c111f83061d8c18367444893b685a787d8ca976 [2019-11-28 21:02:50,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:02:50,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:02:50,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:02:50,952 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:02:50,953 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:02:50,954 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2019-11-28 21:02:51,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdec3ffb/7a8fb8450f30438abcc2d67c72487235/FLAG5981de211 [2019-11-28 21:02:51,636 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:02:51,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2019-11-28 21:02:51,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdec3ffb/7a8fb8450f30438abcc2d67c72487235/FLAG5981de211 [2019-11-28 21:02:51,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdec3ffb/7a8fb8450f30438abcc2d67c72487235 [2019-11-28 21:02:51,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:02:51,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:02:51,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:02:51,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:02:51,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:02:51,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:02:51" (1/1) ... [2019-11-28 21:02:51,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21aba202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:51, skipping insertion in model container [2019-11-28 21:02:51,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:02:51" (1/1) ... [2019-11-28 21:02:51,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:02:51,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:02:52,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:02:52,373 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:02:52,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:02:52,535 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:02:52,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52 WrapperNode [2019-11-28 21:02:52,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:02:52,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:02:52,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:02:52,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:02:52,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (1/1) ... [2019-11-28 21:02:52,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (1/1) ... [2019-11-28 21:02:52,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:02:52,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:02:52,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:02:52,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:02:52,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (1/1) ... [2019-11-28 21:02:52,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (1/1) ... [2019-11-28 21:02:52,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (1/1) ... [2019-11-28 21:02:52,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (1/1) ... [2019-11-28 21:02:52,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (1/1) ... [2019-11-28 21:02:52,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (1/1) ... [2019-11-28 21:02:52,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (1/1) ... [2019-11-28 21:02:52,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:02:52,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:02:52,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:02:52,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:02:52,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (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 21:02:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:02:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:02:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:02:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:02:53,626 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:02:53,627 INFO L287 CfgBuilder]: Removed 164 assume(true) statements. [2019-11-28 21:02:53,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:53 BoogieIcfgContainer [2019-11-28 21:02:53,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:02:53,630 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:02:53,630 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:02:53,633 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:02:53,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:53,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:02:51" (1/3) ... [2019-11-28 21:02:53,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@417755af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:02:53, skipping insertion in model container [2019-11-28 21:02:53,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:53,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:52" (2/3) ... [2019-11-28 21:02:53,638 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@417755af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:02:53, skipping insertion in model container [2019-11-28 21:02:53,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:53,638 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:53" (3/3) ... [2019-11-28 21:02:53,640 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2019-11-28 21:02:53,695 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:02:53,696 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:02:53,696 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:02:53,696 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:02:53,696 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:02:53,697 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:02:53,697 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:02:53,697 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:02:53,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-11-28 21:02:53,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-28 21:02:53,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:53,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:53,788 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:53,788 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:53,788 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:02:53,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-11-28 21:02:53,796 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-28 21:02:53,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:53,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:53,798 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:53,798 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:53,804 INFO L794 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 13#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 60#L956true 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; 63#L964true main_#t~ret71 := valid_product_#res;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 64#L920true assume 0 != main_~tmp~8; 37#L893true ~methAndRunningLastTime~0 := 0; 103#L49true havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 102#L60-1true [2019-11-28 21:02:53,805 INFO L796 eck$LassoCheckResult]: Loop: 102#L60-1true assume !false; 3#L197true assume test_~splverifierCounter~0 < 4; 86#L198true test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 111#L206true assume !(0 != test_~tmp~1); 108#L206-1true test_~tmp___0~1 := test_#t~nondet13;havoc test_#t~nondet13; 42#L216true assume !(0 != test_~tmp___0~1); 39#L216-1true test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 81#L226true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 77#L234-1true assume !(0 != ~pumpRunning~0); 55#L265true assume !(0 != ~systemActive~0); 101#L272true havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~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; 21#L131-1true __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 104#L60true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 102#L60-1true [2019-11-28 21:02:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:53,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:02:53,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:53,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222940674] [2019-11-28 21:02:53,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:54,204 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:54,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:54,205 INFO L82 PathProgramCache]: Analyzing trace with hash 13835412, now seen corresponding path program 1 times [2019-11-28 21:02:54,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:54,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937872001] [2019-11-28 21:02:54,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:02:54,265 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 21:02:54,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937872001] [2019-11-28 21:02:54,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:02:54,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:02:54,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115594376] [2019-11-28 21:02:54,274 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:02:54,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:02:54,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:02:54,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:02:54,295 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 3 states. [2019-11-28 21:02:54,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:02:54,385 INFO L93 Difference]: Finished difference Result 221 states and 325 transitions. [2019-11-28 21:02:54,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:02:54,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 221 states and 325 transitions. [2019-11-28 21:02:54,405 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2019-11-28 21:02:54,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 221 states to 207 states and 310 transitions. [2019-11-28 21:02:54,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2019-11-28 21:02:54,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2019-11-28 21:02:54,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 310 transitions. [2019-11-28 21:02:54,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:02:54,427 INFO L688 BuchiCegarLoop]: Abstraction has 207 states and 310 transitions. [2019-11-28 21:02:54,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 310 transitions. [2019-11-28 21:02:54,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2019-11-28 21:02:54,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2019-11-28 21:02:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 307 transitions. [2019-11-28 21:02:54,492 INFO L711 BuchiCegarLoop]: Abstraction has 205 states and 307 transitions. [2019-11-28 21:02:54,492 INFO L591 BuchiCegarLoop]: Abstraction has 205 states and 307 transitions. [2019-11-28 21:02:54,492 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:02:54,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 307 transitions. [2019-11-28 21:02:54,496 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2019-11-28 21:02:54,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:54,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:54,497 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:54,497 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:54,498 INFO L794 eck$LassoCheckResult]: Stem: 459#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 364#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 365#L956 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; 435#L964 main_#t~ret71 := valid_product_#res;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 437#L920 assume 0 != main_~tmp~8; 399#L893 ~methAndRunningLastTime~0 := 0; 400#L49 havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 378#L60-1 [2019-11-28 21:02:54,498 INFO L796 eck$LassoCheckResult]: Loop: 378#L60-1 assume !false; 481#L197 assume test_~splverifierCounter~0 < 4; 480#L198 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 479#L206 assume !(0 != test_~tmp~1); 464#L206-1 test_~tmp___0~1 := test_#t~nondet13;havoc test_#t~nondet13; 406#L216 assume !(0 != test_~tmp___0~1); 401#L216-1 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 402#L226 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 447#L234-1 assume !(0 != ~pumpRunning~0); 430#L265 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 413#L323 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret16, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 414#L297-1 assume !(0 == ~pumpRunning~0); 434#L272 havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~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; 485#L131-1 __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 462#L60 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 378#L60-1 [2019-11-28 21:02:54,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:54,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:02:54,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:54,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373091984] [2019-11-28 21:02:54,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:54,617 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:54,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:54,618 INFO L82 PathProgramCache]: Analyzing trace with hash -2029358293, now seen corresponding path program 1 times [2019-11-28 21:02:54,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:54,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037132737] [2019-11-28 21:02:54,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:02:54,641 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 21:02:54,641 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037132737] [2019-11-28 21:02:54,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:02:54,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:02:54,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810250031] [2019-11-28 21:02:54,642 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:02:54,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:02:54,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:02:54,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:02:54,643 INFO L87 Difference]: Start difference. First operand 205 states and 307 transitions. cyclomatic complexity: 105 Second operand 3 states. [2019-11-28 21:02:54,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:02:54,788 INFO L93 Difference]: Finished difference Result 294 states and 419 transitions. [2019-11-28 21:02:54,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:02:54,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 294 states and 419 transitions. [2019-11-28 21:02:54,793 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2019-11-28 21:02:54,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 294 states to 294 states and 419 transitions. [2019-11-28 21:02:54,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 294 [2019-11-28 21:02:54,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 294 [2019-11-28 21:02:54,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 294 states and 419 transitions. [2019-11-28 21:02:54,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:02:54,800 INFO L688 BuchiCegarLoop]: Abstraction has 294 states and 419 transitions. [2019-11-28 21:02:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states and 419 transitions. [2019-11-28 21:02:54,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2019-11-28 21:02:54,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-11-28 21:02:54,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 419 transitions. [2019-11-28 21:02:54,815 INFO L711 BuchiCegarLoop]: Abstraction has 294 states and 419 transitions. [2019-11-28 21:02:54,816 INFO L591 BuchiCegarLoop]: Abstraction has 294 states and 419 transitions. [2019-11-28 21:02:54,816 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:02:54,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 294 states and 419 transitions. [2019-11-28 21:02:54,819 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2019-11-28 21:02:54,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:54,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:54,820 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:54,820 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 21:02:54,820 INFO L794 eck$LassoCheckResult]: Stem: 966#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 869#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 870#L956 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; 934#L964 main_#t~ret71 := valid_product_#res;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 936#L920 assume 0 != main_~tmp~8; 904#L893 ~methAndRunningLastTime~0 := 0; 905#L49 havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 969#L60-1 [2019-11-28 21:02:54,821 INFO L796 eck$LassoCheckResult]: Loop: 969#L60-1 assume !false; 1057#L197 assume test_~splverifierCounter~0 < 4; 960#L198 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 961#L206 assume !(0 != test_~tmp~1); 901#L206-1 test_~tmp___0~1 := test_#t~nondet13;havoc test_#t~nondet13; 912#L216 assume !(0 != test_~tmp___0~1); 906#L216-1 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 907#L226 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 952#L234-1 assume !(0 != ~pumpRunning~0); 929#L265 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 917#L323 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret16, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 918#L297-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret35, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 953#L171-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 954#L176-1 isHighWaterLevel_#t~ret35 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret35;havoc isHighWaterLevel_#t~ret35; 910#L425-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~2 := 0; 911#L425-5 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1077#L431-1 processEnvironment__wrappee__highWaterSensor_#t~ret16 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret16;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16; 1070#L301-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 1069#L272 havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~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; 1122#L131-1 __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 1120#L60 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 969#L60-1 [2019-11-28 21:02:54,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:54,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:02:54,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:54,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150909225] [2019-11-28 21:02:54,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:54,959 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:54,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:54,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1583413303, now seen corresponding path program 1 times [2019-11-28 21:02:54,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:54,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274210710] [2019-11-28 21:02:54,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:54,984 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:54,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:54,985 INFO L82 PathProgramCache]: Analyzing trace with hash -938412367, now seen corresponding path program 1 times [2019-11-28 21:02:54,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:54,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471724687] [2019-11-28 21:02:54,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:55,091 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:55,230 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-28 21:03:23,256 WARN L192 SmtUtils]: Spent 27.95 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:03:36,592 WARN L192 SmtUtils]: Spent 13.31 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:03:36,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:03:36 BoogieIcfgContainer [2019-11-28 21:03:36,687 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:03:36,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:03:36,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:03:36,688 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:03:36,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:53" (3/4) ... [2019-11-28 21:03:36,693 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:03:36,760 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:03:36,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:03:36,763 INFO L168 Benchmark]: Toolchain (without parser) took 44915.50 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.7 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -262.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:36,763 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:03:36,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:36,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.95 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 21:03:36,765 INFO L168 Benchmark]: Boogie Preprocessor took 45.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:03:36,766 INFO L168 Benchmark]: RCFGBuilder took 967.83 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: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:36,767 INFO L168 Benchmark]: BuchiAutomizer took 43057.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -190.2 MB). Peak memory consumption was 376.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:36,768 INFO L168 Benchmark]: Witness Printer took 72.83 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: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:36,771 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 689.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.95 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 45.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 967.83 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: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43057.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -190.2 MB). Peak memory consumption was 376.2 MB. Max. memory is 11.5 GB. * Witness Printer took 72.83 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: 9.0 MB). Peak memory consumption was 9.0 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 3 locations. The remainder module has 294 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 42.4s. Construction of modules took 0.1s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 294 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 322 SDtfs, 276 SDslu, 218 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 196]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8135} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=8153, NULL=0, NULL=8135, NULL=8140, NULL=8160, retValue_acc=0, NULL=8141, NULL=8158, NULL=8149, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, retValue_acc=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@544cf70=0, NULL=8151, NULL=0, tmp___1=0, NULL=8147, NULL=8143, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c759c2a=0, cleanupTimeShifts=4, NULL=8137, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7030874c=0, tmp=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=8138, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=8150, \result=0, NULL=8154, retValue_acc=1, tmp=1, NULL=0, \result=1, tmp___0=0, NULL=8157, NULL=8136, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57621474=0, tmp=1, NULL=8148, tmp___2=57, NULL=8139, tmp___0=0, NULL=8156, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=8142, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64499224=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fbd7892=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52aedce7=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2baf6edf=0, NULL=8159, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33c38da2=0, tmp=0, head=0, NULL=0, NULL=0, NULL=8152, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44a16f46=0, NULL=0, NULL=8145, NULL=8144, tmp=0, NULL=0, NULL=0, NULL=8146, NULL=8155} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int methAndRunningLastTime ; [L88] int waterLevel = 1; [L89] int methaneLevelCritical = 0; [L258] int pumpRunning = 0; [L259] int systemActive = 1; [L628] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int cleanupTimeShifts = 4; [L911] int retValue_acc ; [L912] int tmp ; [L960] int retValue_acc ; [L963] retValue_acc = 1 [L964] return (retValue_acc); [L918] tmp = valid_product() [L920] COND TRUE \read(tmp) [L48] methAndRunningLastTime = 0 [L187] int splverifierCounter ; [L188] int tmp ; [L189] int tmp___0 ; [L190] int tmp___1 ; [L191] int tmp___2 ; [L194] splverifierCounter = 0 Loop: [L196] COND TRUE 1 [L198] COND TRUE splverifierCounter < 4 [L204] tmp = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp)) [L214] tmp___0 = __VERIFIER_nondet_int() [L216] COND FALSE !(\read(tmp___0)) [L224] tmp___2 = __VERIFIER_nondet_int() [L226] COND TRUE \read(tmp___2) [L454] systemActive = 1 [L265] COND FALSE !(\read(pumpRunning)) [L272] COND TRUE \read(systemActive) [L320] int tmp ; [L323] COND FALSE !(\read(pumpRunning)) [L294] int tmp ; [L297] COND TRUE ! pumpRunning [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L168] int retValue_acc ; [L171] COND TRUE waterLevel < 2 [L172] retValue_acc = 1 [L173] return (retValue_acc); [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); [L299] tmp = isHighWaterLevel() [L301] COND FALSE !(\read(tmp)) [L53] int tmp ; [L54] int tmp___0 ; [L127] int retValue_acc ; [L130] retValue_acc = methaneLevelCritical [L131] return (retValue_acc); [L58] tmp = isMethaneLevelCritical() [L60] COND FALSE !(\read(tmp)) [L76] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...