./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product19.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 db72a434ba2554f10f7540a58e5ab1c726dc8fbe ................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:58:06,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:58:06,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:58:06,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:58:06,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:58:06,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:58:06,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:58:06,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:58:06,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:58:06,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:58:06,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:58:06,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:58:06,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:58:06,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:58:06,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:58:06,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:58:06,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:58:06,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:58:06,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:58:06,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:58:06,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:58:06,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:58:06,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:58:06,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:58:06,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:58:06,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:58:06,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:58:06,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:58:06,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:58:06,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:58:06,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:58:06,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:58:06,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:58:06,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:58:06,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:58:06,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:58:06,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:58:06,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:58:06,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:58:06,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:58:06,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:58:06,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:58:06,765 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:58:06,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:58:06,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:58:06,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:58:06,769 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:58:06,769 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:58:06,770 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:58:06,770 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:58:06,770 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:58:06,770 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:58:06,770 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:58:06,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:58:06,771 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:58:06,771 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:58:06,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:58:06,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:58:06,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:58:06,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:58:06,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:58:06,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:58:06,772 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:58:06,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:58:06,773 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:58:06,773 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:58:06,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:58:06,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:58:06,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:58:06,774 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:58:06,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:58:06,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:58:06,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:58:06,775 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:58:06,776 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:58:06,776 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 -> db72a434ba2554f10f7540a58e5ab1c726dc8fbe [2019-11-28 20:58:07,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:58:07,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:58:07,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:58:07,109 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:58:07,110 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:58:07,110 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2019-11-28 20:58:07,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1360229/72732fc0e0fb4c828f9768f6e49adda5/FLAG68809b6a7 [2019-11-28 20:58:07,713 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:58:07,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2019-11-28 20:58:07,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1360229/72732fc0e0fb4c828f9768f6e49adda5/FLAG68809b6a7 [2019-11-28 20:58:08,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1360229/72732fc0e0fb4c828f9768f6e49adda5 [2019-11-28 20:58:08,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:58:08,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:58:08,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:08,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:58:08,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:58:08,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4f4d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08, skipping insertion in model container [2019-11-28 20:58:08,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:58:08,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:58:08,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:08,496 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:58:08,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:08,630 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:58:08,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08 WrapperNode [2019-11-28 20:58:08,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:08,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:08,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:58:08,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:58:08,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:08,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:58:08,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:58:08,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:58:08,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:58:08,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:58:08,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:58:08,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:58:08,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:58:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:58:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:58:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:58:08,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:58:09,570 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:58:09,570 INFO L287 CfgBuilder]: Removed 100 assume(true) statements. [2019-11-28 20:58:09,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:09 BoogieIcfgContainer [2019-11-28 20:58:09,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:58:09,573 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:58:09,573 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:58:09,577 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:58:09,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:09,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:58:08" (1/3) ... [2019-11-28 20:58:09,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b89ee97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:09, skipping insertion in model container [2019-11-28 20:58:09,580 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:09,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08" (2/3) ... [2019-11-28 20:58:09,581 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b89ee97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:09, skipping insertion in model container [2019-11-28 20:58:09,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:09,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:09" (3/3) ... [2019-11-28 20:58:09,584 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product19.cil.c [2019-11-28 20:58:09,638 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:58:09,639 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:58:09,639 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:58:09,640 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:58:09,640 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:58:09,640 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:58:09,640 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:58:09,641 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:58:09,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-28 20:58:09,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 20:58:09,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:09,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:09,717 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:09,718 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:09,718 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:58:09,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-28 20:58:09,733 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 20:58:09,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:09,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:09,735 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:09,735 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:09,741 INFO L794 eck$LassoCheckResult]: Stem: 42#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 23#L-1true havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 39#L564true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 61#L572true main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 36#L662true assume 0 != main_~tmp~4; 58#L638true havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 15#L51-1true [2019-11-28 20:58:09,742 INFO L796 eck$LassoCheckResult]: Loop: 15#L51-1true assume !false; 50#L857true assume test_~splverifierCounter~0 < 4; 76#L858true test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 10#L866true assume !(0 != test_~tmp~7); 16#L866-1true test_~tmp___0~2 := test_#t~nondet69;havoc test_#t~nondet69; 68#L876true assume !(0 != test_~tmp___0~2); 70#L876-1true test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 55#L886true assume 0 != test_~tmp___2~0; 27#L892-1true assume !(0 != ~pumpRunning~0); 65#L686true assume !(0 != ~systemActive~0); 73#L693true havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 24#L127true __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 20#L51true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 15#L51-1true [2019-11-28 20:58:09,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:09,749 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:58:09,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:09,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370468993] [2019-11-28 20:58:09,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:10,179 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:10,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:10,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095029, now seen corresponding path program 1 times [2019-11-28 20:58:10,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:10,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009899150] [2019-11-28 20:58:10,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:10,198 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:10,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:10,200 INFO L82 PathProgramCache]: Analyzing trace with hash 41183909, now seen corresponding path program 1 times [2019-11-28 20:58:10,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:10,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487151527] [2019-11-28 20:58:10,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:58:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:58:10,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487151527] [2019-11-28 20:58:10,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:58:10,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:58:10,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226617012] [2019-11-28 20:58:10,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:58:10,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:58:10,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:58:10,479 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 6 states. [2019-11-28 20:58:10,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:58:10,713 INFO L93 Difference]: Finished difference Result 192 states and 264 transitions. [2019-11-28 20:58:10,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:58:10,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 192 states and 264 transitions. [2019-11-28 20:58:10,723 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 121 [2019-11-28 20:58:10,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 192 states to 171 states and 243 transitions. [2019-11-28 20:58:10,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2019-11-28 20:58:10,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2019-11-28 20:58:10,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 243 transitions. [2019-11-28 20:58:10,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:58:10,735 INFO L688 BuchiCegarLoop]: Abstraction has 171 states and 243 transitions. [2019-11-28 20:58:10,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 243 transitions. [2019-11-28 20:58:10,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 108. [2019-11-28 20:58:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-28 20:58:10,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2019-11-28 20:58:10,797 INFO L711 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2019-11-28 20:58:10,797 INFO L591 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2019-11-28 20:58:10,797 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:58:10,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states and 153 transitions. [2019-11-28 20:58:10,802 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2019-11-28 20:58:10,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:10,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:10,807 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,807 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,808 INFO L794 eck$LassoCheckResult]: Stem: 332#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 312#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 313#L564 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 330#L572 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 327#L662 assume 0 != main_~tmp~4; 328#L638 havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 306#L51-1 [2019-11-28 20:58:10,808 INFO L796 eck$LassoCheckResult]: Loop: 306#L51-1 assume !false; 307#L857 assume test_~splverifierCounter~0 < 4; 340#L858 test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 299#L866 assume !(0 != test_~tmp~7); 298#L866-1 test_~tmp___0~2 := test_#t~nondet69;havoc test_#t~nondet69; 308#L876 assume !(0 != test_~tmp___0~2); 325#L876-1 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 347#L886 assume 0 != test_~tmp___2~0; 317#L892-1 assume !(0 != ~pumpRunning~0); 319#L686 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 341#L718 assume !(0 != ~pumpRunning~0); 342#L693 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 314#L127 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 311#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 306#L51-1 [2019-11-28 20:58:10,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:10,810 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 20:58:10,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:10,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145680733] [2019-11-28 20:58:10,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:10,958 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:10,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:10,959 INFO L82 PathProgramCache]: Analyzing trace with hash -353331269, now seen corresponding path program 1 times [2019-11-28 20:58:10,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:10,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164793995] [2019-11-28 20:58:10,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:10,986 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:10,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:10,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708257, now seen corresponding path program 1 times [2019-11-28 20:58:10,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:10,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788404373] [2019-11-28 20:58:10,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,128 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:37,360 WARN L192 SmtUtils]: Spent 26.15 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 20:58:50,802 WARN L192 SmtUtils]: Spent 13.44 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 20:58:50,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:58:50 BoogieIcfgContainer [2019-11-28 20:58:50,869 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:58:50,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:58:50,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:58:50,870 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:58:50,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:09" (3/4) ... [2019-11-28 20:58:50,875 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:58:50,948 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:58:50,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:58:50,950 INFO L168 Benchmark]: Toolchain (without parser) took 42943.66 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.5 MB). Free memory was 960.4 MB in the beginning and 1.3 GB in the end (delta: -325.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:58:50,950 INFO L168 Benchmark]: CDTParser took 0.19 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 20:58:50,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.34 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,955 INFO L168 Benchmark]: Boogie Preprocessor took 38.10 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 20:58:50,956 INFO L168 Benchmark]: RCFGBuilder took 833.93 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: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,958 INFO L168 Benchmark]: BuchiAutomizer took 41297.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -229.7 MB). Peak memory consumption was 361.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,958 INFO L168 Benchmark]: Witness Printer took 78.26 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,967 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 623.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.34 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.10 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 833.93 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: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41297.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -229.7 MB). Peak memory consumption was 361.9 MB. Max. memory is 11.5 GB. * Witness Printer took 78.26 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 108 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 40.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 63 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 108 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 98 SDtfs, 370 SDslu, 524 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 856]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8654} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b658bf4=0, NULL=8654, NULL=0, NULL=0, NULL=0, NULL=42211, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=8655, NULL=25908, NULL=34423, methaneLevelCritical=0, NULL=37576, NULL=42213, NULL=0, tmp=0, tmp___1=0, tmp___0=0, NULL=37578, cleanupTimeShifts=4, NULL=12321, NULL=42219, NULL=42212, NULL=0, systemActive=1, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28a54a43=0, NULL=0, NULL=0, NULL=37580, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37e7892d=0, NULL=37579, NULL=0, NULL=0, NULL=42215, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=34424, tmp=1, NULL=42218, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b00f66f=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36e9bbff=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d71a42=0, NULL=0, NULL=42216, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42dd2e65=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a645963=53, retValue_acc=1, NULL=42209, tmp___2=53, tmp___0=0, NULL=37581, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=37582, head=0, tmp=0, NULL=42210, NULL=0, NULL=42214, NULL=0, NULL=42217, NULL=19646, NULL=0, NULL=28880, NULL=37577} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L577] int cleanupTimeShifts = 4; [L679] int pumpRunning = 0; [L680] int systemActive = 1; [L653] int retValue_acc ; [L654] int tmp ; [L568] int retValue_acc ; [L571] retValue_acc = 1 [L572] return (retValue_acc); [L660] tmp = valid_product() [L662] COND TRUE \read(tmp) [L847] int splverifierCounter ; [L848] int tmp ; [L849] int tmp___0 ; [L850] int tmp___1 ; [L851] int tmp___2 ; [L854] splverifierCounter = 0 Loop: [L856] COND TRUE 1 [L858] COND TRUE splverifierCounter < 4 [L864] tmp = __VERIFIER_nondet_int() [L866] COND FALSE !(\read(tmp)) [L874] tmp___0 = __VERIFIER_nondet_int() [L876] COND FALSE !(\read(tmp___0)) [L884] tmp___2 = __VERIFIER_nondet_int() [L886] COND TRUE \read(tmp___2) [L686] COND FALSE !(\read(pumpRunning)) [L693] COND TRUE \read(systemActive) [L715] int tmp ; [L718] COND FALSE !(\read(pumpRunning)) [L44] int tmp ; [L45] int tmp___0 ; [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L49] tmp = isMethaneLevelCritical() [L51] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...