./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product52.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_product52.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 ac98b61700c421642ba0cea32b1043bdcac0ece8 .............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:10:50,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:10:50,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:10:50,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:10:50,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:10:50,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:10:50,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:10:50,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:10:50,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:10:50,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:10:50,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:10:50,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:10:50,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:10:50,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:10:50,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:10:50,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:10:50,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:10:50,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:10:50,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:10:50,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:10:50,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:10:50,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:10:50,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:10:50,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:10:50,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:10:50,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:10:50,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:10:50,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:10:50,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:10:50,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:10:50,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:10:50,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:10:50,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:10:50,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:10:50,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:10:50,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:10:50,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:10:50,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:10:50,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:10:50,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:10:50,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:10:50,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:10:50,757 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:10:50,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:10:50,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:10:50,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:10:50,762 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:10:50,764 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:10:50,764 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:10:50,764 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:10:50,765 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:10:50,765 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:10:50,765 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:10:50,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:10:50,767 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:10:50,767 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:10:50,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:10:50,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:10:50,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:10:50,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:10:50,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:10:50,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:10:50,770 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:10:50,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:10:50,771 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:10:50,771 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:10:50,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:10:50,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:10:50,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:10:50,773 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:10:50,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:10:50,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:10:50,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:10:50,775 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:10:50,776 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:10:50,777 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 -> ac98b61700c421642ba0cea32b1043bdcac0ece8 [2019-11-28 21:10:51,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:10:51,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:10:51,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:10:51,126 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:10:51,127 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:10:51,128 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2019-11-28 21:10:51,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79c2f6c8/48432a963f684f9c9db2ff2ffd42e606/FLAG033276049 [2019-11-28 21:10:51,751 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:10:51,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2019-11-28 21:10:51,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79c2f6c8/48432a963f684f9c9db2ff2ffd42e606/FLAG033276049 [2019-11-28 21:10:52,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79c2f6c8/48432a963f684f9c9db2ff2ffd42e606 [2019-11-28 21:10:52,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:10:52,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:10:52,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:52,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:10:52,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:10:52,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e036dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52, skipping insertion in model container [2019-11-28 21:10:52,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:10:52,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:10:52,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:52,570 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:10:52,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:52,712 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:10:52,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52 WrapperNode [2019-11-28 21:10:52,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:52,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:52,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:10:52,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:10:52,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:52,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:10:52,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:10:52,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:10:52,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (1/1) ... [2019-11-28 21:10:52,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:10:52,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:10:52,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:10:52,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:10:52,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (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 21:10:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:10:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:10:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:10:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:10:53,795 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:10:53,795 INFO L287 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-28 21:10:53,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:53 BoogieIcfgContainer [2019-11-28 21:10:53,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:10:53,800 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:10:53,800 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:10:53,804 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:10:53,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:53,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:10:52" (1/3) ... [2019-11-28 21:10:53,808 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@482a6239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:53, skipping insertion in model container [2019-11-28 21:10:53,808 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:53,808 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:52" (2/3) ... [2019-11-28 21:10:53,809 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@482a6239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:53, skipping insertion in model container [2019-11-28 21:10:53,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:53,809 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:53" (3/3) ... [2019-11-28 21:10:53,811 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2019-11-28 21:10:53,866 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:10:53,867 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:10:53,867 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:10:53,867 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:10:53,867 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:10:53,868 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:10:53,868 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:10:53,868 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:10:53,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2019-11-28 21:10:53,932 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-11-28 21:10:53,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:53,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:53,942 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:53,943 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:53,943 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:10:53,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2019-11-28 21:10:53,951 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-11-28 21:10:53,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:53,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:53,953 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:53,953 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:53,959 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);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(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 78#L936true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 96#L944true main_#t~ret70 := valid_product_#res;main_~tmp~8 := main_#t~ret70;havoc main_#t~ret70; 82#L900true assume 0 != main_~tmp~8; 41#L874true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 98#L966-1true [2019-11-28 21:10:53,960 INFO L796 eck$LassoCheckResult]: Loop: 98#L966-1true assume !false; 79#L391true assume test_~splverifierCounter~0 < 4; 46#L392true test_~tmp~4 := test_#t~nondet31;havoc test_#t~nondet31; 65#L400true assume !(0 != test_~tmp~4); 69#L400-1true test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 99#L410true assume !(0 != test_~tmp___0~2); 84#L410-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 3#L420true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 36#L428-1true assume !(0 != ~pumpRunning~0); 58#L166true assume !(0 != ~systemActive~0); 105#L173true havoc __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_#t~ret73, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 110#L123true __utac_acc__Specification4_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; 95#L966true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 98#L966-1true [2019-11-28 21:10:53,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:53,968 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:10:53,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:53,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430846540] [2019-11-28 21:10:53,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:54,347 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:54,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:54,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1670232116, now seen corresponding path program 1 times [2019-11-28 21:10:54,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:54,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281964722] [2019-11-28 21:10:54,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:54,414 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 21:10:54,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281964722] [2019-11-28 21:10:54,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:54,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:10:54,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898503306] [2019-11-28 21:10:54,421 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:10:54,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:54,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:10:54,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:10:54,442 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 3 states. [2019-11-28 21:10:54,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:54,550 INFO L93 Difference]: Finished difference Result 226 states and 330 transitions. [2019-11-28 21:10:54,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:10:54,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 330 transitions. [2019-11-28 21:10:54,561 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2019-11-28 21:10:54,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 212 states and 315 transitions. [2019-11-28 21:10:54,570 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2019-11-28 21:10:54,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2019-11-28 21:10:54,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 212 states and 315 transitions. [2019-11-28 21:10:54,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:54,579 INFO L688 BuchiCegarLoop]: Abstraction has 212 states and 315 transitions. [2019-11-28 21:10:54,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states and 315 transitions. [2019-11-28 21:10:54,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2019-11-28 21:10:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-11-28 21:10:54,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 312 transitions. [2019-11-28 21:10:54,622 INFO L711 BuchiCegarLoop]: Abstraction has 210 states and 312 transitions. [2019-11-28 21:10:54,622 INFO L591 BuchiCegarLoop]: Abstraction has 210 states and 312 transitions. [2019-11-28 21:10:54,623 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:10:54,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 210 states and 312 transitions. [2019-11-28 21:10:54,627 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2019-11-28 21:10:54,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:54,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:54,628 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:54,628 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:54,629 INFO L794 eck$LassoCheckResult]: Stem: 466#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);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(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 365#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 366#L936 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 454#L944 main_#t~ret70 := valid_product_#res;main_~tmp~8 := main_#t~ret70;havoc main_#t~ret70; 457#L900 assume 0 != main_~tmp~8; 409#L874 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 410#L966-1 [2019-11-28 21:10:54,629 INFO L796 eck$LassoCheckResult]: Loop: 410#L966-1 assume !false; 455#L391 assume test_~splverifierCounter~0 < 4; 417#L392 test_~tmp~4 := test_#t~nondet31;havoc test_#t~nondet31; 418#L400 assume !(0 != test_~tmp~4); 445#L400-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 449#L410 assume !(0 != test_~tmp___0~2); 448#L410-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 351#L420 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 352#L428-1 assume !(0 != ~pumpRunning~0); 379#L166 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 434#L224 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 443#L198-1 assume !(0 == ~pumpRunning~0); 475#L173 havoc __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_#t~ret73, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 476#L123 __utac_acc__Specification4_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; 469#L966 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 410#L966-1 [2019-11-28 21:10:54,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:54,630 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:10:54,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:54,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874151213] [2019-11-28 21:10:54,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:54,823 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:54,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:54,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1415980246, now seen corresponding path program 1 times [2019-11-28 21:10:54,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:54,824 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834815271] [2019-11-28 21:10:54,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:54,839 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 21:10:54,840 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834815271] [2019-11-28 21:10:54,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:54,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:10:54,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029291703] [2019-11-28 21:10:54,841 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:10:54,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:54,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:10:54,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:10:54,842 INFO L87 Difference]: Start difference. First operand 210 states and 312 transitions. cyclomatic complexity: 105 Second operand 3 states. [2019-11-28 21:10:55,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:55,010 INFO L93 Difference]: Finished difference Result 293 states and 412 transitions. [2019-11-28 21:10:55,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:10:55,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 293 states and 412 transitions. [2019-11-28 21:10:55,022 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2019-11-28 21:10:55,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 293 states to 293 states and 412 transitions. [2019-11-28 21:10:55,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 293 [2019-11-28 21:10:55,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 293 [2019-11-28 21:10:55,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 293 states and 412 transitions. [2019-11-28 21:10:55,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:55,037 INFO L688 BuchiCegarLoop]: Abstraction has 293 states and 412 transitions. [2019-11-28 21:10:55,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states and 412 transitions. [2019-11-28 21:10:55,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2019-11-28 21:10:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2019-11-28 21:10:55,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 412 transitions. [2019-11-28 21:10:55,059 INFO L711 BuchiCegarLoop]: Abstraction has 293 states and 412 transitions. [2019-11-28 21:10:55,060 INFO L591 BuchiCegarLoop]: Abstraction has 293 states and 412 transitions. [2019-11-28 21:10:55,060 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:10:55,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 293 states and 412 transitions. [2019-11-28 21:10:55,063 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2019-11-28 21:10:55,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:55,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:55,064 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:55,064 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 21:10:55,064 INFO L794 eck$LassoCheckResult]: Stem: 967#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);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(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 874#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 875#L936 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 958#L944 main_#t~ret70 := valid_product_#res;main_~tmp~8 := main_#t~ret70;havoc main_#t~ret70; 961#L900 assume 0 != main_~tmp~8; 919#L874 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 920#L966-1 [2019-11-28 21:10:55,065 INFO L796 eck$LassoCheckResult]: Loop: 920#L966-1 assume !false; 959#L391 assume test_~splverifierCounter~0 < 4; 928#L392 test_~tmp~4 := test_#t~nondet31;havoc test_#t~nondet31; 929#L400 assume !(0 != test_~tmp~4); 949#L400-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 953#L410 assume !(0 != test_~tmp___0~2); 952#L410-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 860#L420 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 861#L428-1 assume !(0 != ~pumpRunning~0); 915#L166 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 943#L224 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 947#L198-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 896#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 897#L136-1 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 907#L326-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 908#L326-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 869#L332-1 processEnvironment__wrappee__highWaterSensor_#t~ret10 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret10;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10; 870#L202-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 922#L173 havoc __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_#t~ret73, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 976#L123 __utac_acc__Specification4_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; 971#L966 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 920#L966-1 [2019-11-28 21:10:55,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:55,065 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:10:55,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:55,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130809821] [2019-11-28 21:10:55,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,145 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:55,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:55,146 INFO L82 PathProgramCache]: Analyzing trace with hash 890409558, now seen corresponding path program 1 times [2019-11-28 21:10:55,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:55,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938339523] [2019-11-28 21:10:55,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,163 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:55,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:55,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1346480752, now seen corresponding path program 1 times [2019-11-28 21:10:55,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:55,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763990444] [2019-11-28 21:10:55,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,280 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:55,448 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-28 21:11:25,091 WARN L192 SmtUtils]: Spent 29.56 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:11:39,594 WARN L192 SmtUtils]: Spent 14.50 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:11:39,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:11:39 BoogieIcfgContainer [2019-11-28 21:11:39,698 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:11:39,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:11:39,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:11:39,700 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:11:39,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:53" (3/4) ... [2019-11-28 21:11:39,704 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:11:39,818 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:11:39,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:11:39,824 INFO L168 Benchmark]: Toolchain (without parser) took 47799.43 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 297.8 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -261.2 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:39,829 INFO L168 Benchmark]: CDTParser took 0.27 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 21:11:39,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:39,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.58 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 21:11:39,834 INFO L168 Benchmark]: Boogie Preprocessor took 57.47 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 21:11:39,835 INFO L168 Benchmark]: RCFGBuilder took 946.90 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:39,835 INFO L168 Benchmark]: BuchiAutomizer took 45898.76 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 169.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -192.7 MB). Peak memory consumption was 379.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:39,836 INFO L168 Benchmark]: Witness Printer took 123.77 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:11:39,842 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 686.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.58 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 57.47 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 946.90 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 45898.76 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 169.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -192.7 MB). Peak memory consumption was 379.1 MB. Max. memory is 11.5 GB. * Witness Printer took 123.77 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 293 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 45.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 45.2s. 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 293 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 324 SDtfs, 271 SDslu, 224 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: 390]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9305} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=11347, NULL=9311, NULL=0, NULL=9305, NULL=9310, NULL=11358, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@872e6aa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79ad4cf3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a06238f=0, NULL=11359, retValue_acc=1, NULL=9313, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10ee85c1=0, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, retValue_acc=0, tmp=0, NULL=11352, NULL=9309, cleanupTimeShifts=4, NULL=11344, NULL=9308, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33190489=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40231de3=51, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=11356, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, \result=1, retValue_acc=1, NULL=11354, head=0, pumpRunning=0, NULL=11351, \result=0, NULL=11357, retValue_acc=1, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44480976=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e9ca741=0, NULL=11349, NULL=11353, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77f0d331=0, tmp=1, NULL=9306, tmp___2=51, tmp___0=0, tmp=1, NULL=11348, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9307, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26fa4f76=0, tmp=0, head=0, NULL=0, NULL=0, NULL=11346, NULL=0, NULL=0, NULL=9312, NULL=11345, NULL=0, NULL=11350, NULL=11343, NULL=11355} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L618] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L815] int cleanupTimeShifts = 4; [L891] int retValue_acc ; [L892] int tmp ; [L940] int retValue_acc ; [L943] retValue_acc = 1 [L944] return (retValue_acc); [L898] tmp = valid_product() [L900] COND TRUE \read(tmp) [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 Loop: [L390] COND TRUE 1 [L392] COND TRUE splverifierCounter < 4 [L398] tmp = __VERIFIER_nondet_int() [L400] COND FALSE !(\read(tmp)) [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND TRUE \read(tmp___2) [L374] systemActive = 1 [L166] COND FALSE !(\read(pumpRunning)) [L173] COND TRUE \read(systemActive) [L221] int tmp ; [L224] COND FALSE !(\read(pumpRunning)) [L195] int tmp ; [L198] COND TRUE ! pumpRunning [L318] int retValue_acc ; [L319] int tmp ; [L320] int tmp___0 ; [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] return (retValue_acc); [L324] tmp = isHighWaterSensorDry() [L326] COND TRUE \read(tmp) [L327] tmp___0 = 0 [L331] retValue_acc = tmp___0 [L332] return (retValue_acc); [L200] tmp = isHighWaterLevel() [L202] COND FALSE !(\read(tmp)) [L959] int tmp ; [L960] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L964] tmp = getWaterLevel() [L966] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...