./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product05.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_spec5_product05.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 6807f0a20a9980e0b825c3ed1b1872123dbe179c ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:11:52,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:11:52,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:11:52,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:11:52,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:11:52,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:11:52,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:11:52,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:11:52,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:11:52,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:11:52,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:11:52,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:11:52,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:11:52,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:11:52,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:11:52,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:11:52,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:11:52,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:11:52,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:11:52,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:11:52,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:11:52,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:11:52,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:11:52,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:11:52,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:11:52,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:11:52,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:11:52,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:11:52,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:11:52,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:11:52,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:11:52,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:11:52,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:11:52,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:11:52,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:11:52,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:11:52,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:11:52,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:11:52,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:11:52,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:11:52,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:11:52,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:11:52,818 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:11:52,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:11:52,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:11:52,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:11:52,820 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:11:52,821 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:11:52,821 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:11:52,821 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:11:52,821 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:11:52,821 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:11:52,822 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:11:52,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:11:52,823 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:11:52,823 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:11:52,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:11:52,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:11:52,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:11:52,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:11:52,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:11:52,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:11:52,825 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:11:52,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:11:52,825 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:11:52,825 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:11:52,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:11:52,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:11:52,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:11:52,826 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:11:52,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:11:52,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:11:52,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:11:52,828 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:11:52,830 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:11:52,830 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 -> 6807f0a20a9980e0b825c3ed1b1872123dbe179c [2019-11-28 21:11:53,119 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:11:53,132 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:11:53,135 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:11:53,137 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:11:53,137 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:11:53,138 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c [2019-11-28 21:11:53,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd4299657/3abde71fca244faca13f5e88d6c3dd95/FLAG1e1a3ef74 [2019-11-28 21:11:53,735 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:11:53,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c [2019-11-28 21:11:53,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd4299657/3abde71fca244faca13f5e88d6c3dd95/FLAG1e1a3ef74 [2019-11-28 21:11:54,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd4299657/3abde71fca244faca13f5e88d6c3dd95 [2019-11-28 21:11:54,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:11:54,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:11:54,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:11:54,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:11:54,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:11:54,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54, skipping insertion in model container [2019-11-28 21:11:54,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:11:54,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:11:54,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:11:54,520 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:11:54,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:11:54,640 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:11:54,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54 WrapperNode [2019-11-28 21:11:54,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:11:54,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:11:54,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:11:54,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:11:54,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:11:54,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:11:54,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:11:54,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:11:54,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (1/1) ... [2019-11-28 21:11:54,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:11:54,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:11:54,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:11:54,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:11:54,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (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 21:11:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:11:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:11:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:11:54,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:11:55,505 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:11:55,506 INFO L287 CfgBuilder]: Removed 110 assume(true) statements. [2019-11-28 21:11:55,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:11:55 BoogieIcfgContainer [2019-11-28 21:11:55,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:11:55,508 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:11:55,508 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:11:55,512 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:11:55,513 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:11:55,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:11:54" (1/3) ... [2019-11-28 21:11:55,514 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bb6bb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:11:55, skipping insertion in model container [2019-11-28 21:11:55,514 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:11:55,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:11:54" (2/3) ... [2019-11-28 21:11:55,515 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bb6bb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:11:55, skipping insertion in model container [2019-11-28 21:11:55,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:11:55,516 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:11:55" (3/3) ... [2019-11-28 21:11:55,517 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product05.cil.c [2019-11-28 21:11:55,561 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:11:55,562 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:11:55,562 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:11:55,562 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:11:55,563 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:11:55,563 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:11:55,563 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:11:55,563 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:11:55,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2019-11-28 21:11:55,605 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 21:11:55,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:11:55,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:11:55,612 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:11:55,612 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:11:55,613 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:11:55,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2019-11-28 21:11:55,619 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 21:11:55,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:11:55,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:11:55,620 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:11:55,620 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:11:55,625 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(77, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(101, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(116, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(104, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string66.base, #t~string66.offset, 1);call write~init~int(82, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(73, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(84, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 4 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(75, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 6#L-1true havoc main_#res;havoc main_#t~ret60, main_~retValue_acc~5, main_~tmp~6;havoc main_~retValue_acc~5;havoc main_~tmp~6; 76#L880true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 3#L888true main_#t~ret60 := valid_product_#res;main_~tmp~6 := main_#t~ret60;havoc main_#t~ret60; 10#L764true assume 0 != main_~tmp~6; 60#L737true ~switchedOnBeforeTS~0 := 0; 41#L49true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 16#L70-1true [2019-11-28 21:11:55,625 INFO L796 eck$LassoCheckResult]: Loop: 16#L70-1true assume !false; 35#L249true assume test_~splverifierCounter~0 < 4; 38#L250true test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 73#L258true assume !(0 != test_~tmp~2); 68#L258-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 51#L268true assume !(0 != test_~tmp___0~1); 50#L268-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 29#L278true assume 0 != test_~tmp___2~0; 56#L284-2true havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 32#L194true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 17#L59true assume !(0 != ~pumpRunning~0); 12#L109true assume !(0 != ~systemActive~0); 65#L116true havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 43#L853true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 18#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 16#L70-1true [2019-11-28 21:11:55,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:11:55,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:11:55,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:11:55,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621909304] [2019-11-28 21:11:55,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:11:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:56,002 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:11:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:11:56,004 INFO L82 PathProgramCache]: Analyzing trace with hash 93981420, now seen corresponding path program 1 times [2019-11-28 21:11:56,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:11:56,004 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909189134] [2019-11-28 21:11:56,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:11:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:56,023 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:11:56,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:11:56,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2028006630, now seen corresponding path program 1 times [2019-11-28 21:11:56,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:11:56,028 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943636529] [2019-11-28 21:11:56,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:11:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:11:56,216 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 21:11:56,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943636529] [2019-11-28 21:11:56,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:11:56,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:11:56,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424154526] [2019-11-28 21:11:56,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:11:56,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:11:56,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:11:56,380 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 6 states. [2019-11-28 21:11:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:11:56,553 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2019-11-28 21:11:56,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:11:56,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 100 transitions. [2019-11-28 21:11:56,560 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:11:56,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2019-11-28 21:11:56,566 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2019-11-28 21:11:56,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2019-11-28 21:11:56,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2019-11-28 21:11:56,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:11:56,569 INFO L688 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2019-11-28 21:11:56,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2019-11-28 21:11:56,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-11-28 21:11:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-28 21:11:56,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2019-11-28 21:11:56,604 INFO L711 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2019-11-28 21:11:56,604 INFO L591 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2019-11-28 21:11:56,605 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:11:56,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2019-11-28 21:11:56,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:11:56,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:11:56,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:11:56,608 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:11:56,608 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:11:56,608 INFO L794 eck$LassoCheckResult]: Stem: 203#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(77, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(101, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(116, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(104, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string66.base, #t~string66.offset, 1);call write~init~int(82, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(73, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(84, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 4 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(75, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 174#L-1 havoc main_#res;havoc main_#t~ret60, main_~retValue_acc~5, main_~tmp~6;havoc main_~retValue_acc~5;havoc main_~tmp~6; 175#L880 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 168#L888 main_#t~ret60 := valid_product_#res;main_~tmp~6 := main_#t~ret60;havoc main_#t~ret60; 169#L764 assume 0 != main_~tmp~6; 182#L737 ~switchedOnBeforeTS~0 := 0; 215#L49 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 187#L70-1 [2019-11-28 21:11:56,609 INFO L796 eck$LassoCheckResult]: Loop: 187#L70-1 assume !false; 188#L249 assume test_~splverifierCounter~0 < 4; 212#L250 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 214#L258 assume !(0 != test_~tmp~2); 234#L258-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 223#L268 assume !(0 != test_~tmp___0~1); 179#L268-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 205#L278 assume 0 != test_~tmp___2~0; 207#L284-2 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 210#L194 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 189#L59 assume !(0 != ~pumpRunning~0); 183#L109 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 184#L141 assume !(0 != ~pumpRunning~0); 230#L116 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 216#L853 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 191#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 187#L70-1 [2019-11-28 21:11:56,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:11:56,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:11:56,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:11:56,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567340727] [2019-11-28 21:11:56,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:11:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:56,729 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:11:56,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:11:56,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1402071741, now seen corresponding path program 1 times [2019-11-28 21:11:56,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:11:56,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200361718] [2019-11-28 21:11:56,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:11:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:56,754 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:11:56,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:11:56,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1576832375, now seen corresponding path program 1 times [2019-11-28 21:11:56,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:11:56,761 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035708435] [2019-11-28 21:11:56,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:11:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:11:56,827 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 21:11:56,828 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035708435] [2019-11-28 21:11:56,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:11:56,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:11:56,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581309760] [2019-11-28 21:11:56,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:11:56,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:11:56,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:11:56,947 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand 5 states. [2019-11-28 21:11:57,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:11:57,150 INFO L93 Difference]: Finished difference Result 188 states and 255 transitions. [2019-11-28 21:11:57,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:11:57,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 255 transitions. [2019-11-28 21:11:57,160 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2019-11-28 21:11:57,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 188 states and 255 transitions. [2019-11-28 21:11:57,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2019-11-28 21:11:57,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2019-11-28 21:11:57,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 255 transitions. [2019-11-28 21:11:57,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:11:57,174 INFO L688 BuchiCegarLoop]: Abstraction has 188 states and 255 transitions. [2019-11-28 21:11:57,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 255 transitions. [2019-11-28 21:11:57,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 129. [2019-11-28 21:11:57,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-28 21:11:57,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2019-11-28 21:11:57,199 INFO L711 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2019-11-28 21:11:57,199 INFO L591 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2019-11-28 21:11:57,199 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:11:57,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 172 transitions. [2019-11-28 21:11:57,202 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2019-11-28 21:11:57,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:11:57,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:11:57,203 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:11:57,203 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:11:57,205 INFO L794 eck$LassoCheckResult]: Stem: 476#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(77, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(101, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(116, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(104, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string66.base, #t~string66.offset, 1);call write~init~int(82, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(73, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(84, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 4 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(75, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 446#L-1 havoc main_#res;havoc main_#t~ret60, main_~retValue_acc~5, main_~tmp~6;havoc main_~retValue_acc~5;havoc main_~tmp~6; 447#L880 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 440#L888 main_#t~ret60 := valid_product_#res;main_~tmp~6 := main_#t~ret60;havoc main_#t~ret60; 441#L764 assume 0 != main_~tmp~6; 454#L737 ~switchedOnBeforeTS~0 := 0; 493#L49 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 459#L70-1 [2019-11-28 21:11:57,205 INFO L796 eck$LassoCheckResult]: Loop: 459#L70-1 assume !false; 460#L249 assume test_~splverifierCounter~0 < 4; 487#L250 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 490#L258 assume !(0 != test_~tmp~2); 520#L258-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 504#L268 assume !(0 != test_~tmp___0~1); 449#L268-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 477#L278 assume 0 != test_~tmp___2~0; 479#L284-2 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 484#L194 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 461#L59 assume !(0 != ~pumpRunning~0); 455#L109 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 456#L141 assume !(0 != ~pumpRunning~0); 513#L116 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 519#L853 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 463#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 464#L194-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 500#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 459#L70-1 [2019-11-28 21:11:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:11:57,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:11:57,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:11:57,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063913156] [2019-11-28 21:11:57,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:11:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:57,322 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:11:57,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:11:57,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1228773470, now seen corresponding path program 1 times [2019-11-28 21:11:57,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:11:57,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685157262] [2019-11-28 21:11:57,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:11:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:57,338 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:11:57,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:11:57,339 INFO L82 PathProgramCache]: Analyzing trace with hash 787528740, now seen corresponding path program 1 times [2019-11-28 21:11:57,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:11:57,340 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47112337] [2019-11-28 21:11:57,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:11:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:11:57,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:11:57,560 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-11-28 21:12:21,233 WARN L192 SmtUtils]: Spent 23.61 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:12:33,718 WARN L192 SmtUtils]: Spent 12.48 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:12:33,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:12:33 BoogieIcfgContainer [2019-11-28 21:12:33,800 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:12:33,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:12:33,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:12:33,800 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:12:33,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:11:55" (3/4) ... [2019-11-28 21:12:33,803 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:12:33,865 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:12:33,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:12:33,867 INFO L168 Benchmark]: Toolchain (without parser) took 39819.05 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 305.7 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -263.3 MB). Peak memory consumption was 42.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:33,868 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:12:33,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:33,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.30 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:33,872 INFO L168 Benchmark]: Boogie Preprocessor took 36.30 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:33,873 INFO L168 Benchmark]: RCFGBuilder took 767.18 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:33,874 INFO L168 Benchmark]: BuchiAutomizer took 38291.68 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -162.0 MB). Peak memory consumption was 377.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:33,875 INFO L168 Benchmark]: Witness Printer took 65.58 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 21:12:33,882 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 592.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.30 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.30 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 767.18 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38291.68 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -162.0 MB). Peak memory consumption was 377.9 MB. Max. memory is 11.5 GB. * Witness Printer took 65.58 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 6 locations. The remainder module has 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 37.6s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 59 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 238 SDtfs, 568 SDslu, 274 SDs, 0 SdLazy, 75 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 248]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8143} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=8147, NULL=8154, NULL=0, NULL=8143, NULL=8163, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=8152, NULL=8153, methaneLevelCritical=0, NULL=8165, tmp=0, NULL=0, NULL=0, NULL=8166, tmp___1=0, tmp=1, NULL=0, NULL=0, NULL=8149, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=8158, NULL=8168, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7132137=0, \result=0, NULL=8156, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=8144, NULL=0, NULL=8146, NULL=8157, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, \result=1, NULL=8145, head=0, pumpRunning=0, NULL=8155, \result=0, NULL=8164, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68c34f39=0, NULL=8161, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5df35d4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@531cd2fd=59, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49a533ed=0, NULL=8148, retValue_acc=1, retValue_acc=1, tmp___2=59, tmp___0=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49a13da8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c836c42=0, NULL=8151, NULL=8160, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4204960c=0, head=0, retValue_acc=0, NULL=0, NULL=8162, NULL=8167, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59e568b6=0, NULL=8150, NULL=8159, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int switchedOnBeforeTS ; [L99] int pumpRunning = 0; [L100] int systemActive = 1; [L472] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L678] int cleanupTimeShifts = 4; [L778] int waterLevel = 1; [L779] int methaneLevelCritical = 0; [L755] int retValue_acc ; [L756] int tmp ; [L884] int retValue_acc ; [L887] retValue_acc = 1 [L888] return (retValue_acc); [L762] tmp = valid_product() [L764] COND TRUE \read(tmp) [L48] switchedOnBeforeTS = 0 [L239] int splverifierCounter ; [L240] int tmp ; [L241] int tmp___0 ; [L242] int tmp___1 ; [L243] int tmp___2 ; [L246] splverifierCounter = 0 Loop: [L248] COND TRUE 1 [L250] COND TRUE splverifierCounter < 4 [L256] tmp = __VERIFIER_nondet_int() [L258] COND FALSE !(\read(tmp)) [L266] tmp___0 = __VERIFIER_nondet_int() [L268] COND FALSE !(\read(tmp___0)) [L276] tmp___2 = __VERIFIER_nondet_int() [L278] COND TRUE \read(tmp___2) [L190] int retValue_acc ; [L193] retValue_acc = pumpRunning [L194] return (retValue_acc); [L57] switchedOnBeforeTS = isPumpRunning() [L109] COND FALSE !(\read(pumpRunning)) [L116] COND TRUE \read(systemActive) [L138] int tmp ; [L141] COND FALSE !(\read(pumpRunning)) [L63] int tmp ; [L64] int tmp___0 ; [L849] int retValue_acc ; [L852] retValue_acc = waterLevel [L853] return (retValue_acc); [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L190] int retValue_acc ; [L193] retValue_acc = pumpRunning [L194] return (retValue_acc); [L72] tmp___0 = isPumpRunning() [L74] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...