./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer --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 99a0574ff0f23dd43b458f22f446fd063a15f78d .......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-10-22 08:57:49,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:49,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:49,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:49,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:49,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:49,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:49,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:49,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:49,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:49,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:49,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:49,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:49,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:49,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:49,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:49,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:49,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:49,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:49,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:49,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:49,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:49,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:49,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:49,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:49,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:49,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:49,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:49,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:49,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:49,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:49,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:49,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:49,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:49,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:49,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:49,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:49,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:49,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:49,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:49,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:49,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:57:49,783 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:49,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:49,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:49,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:49,785 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:49,785 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:57:49,785 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:57:49,786 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:57:49,786 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:57:49,786 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:57:49,786 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:57:49,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:49,787 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:49,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:49,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:49,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:49,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:49,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:57:49,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:57:49,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:57:49,788 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:49,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:49,789 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:57:49,789 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:49,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:57:49,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:49,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:49,790 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:57:49,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:49,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:49,790 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:57:49,791 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:57:49,791 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer 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 -> 99a0574ff0f23dd43b458f22f446fd063a15f78d [2019-10-22 08:57:49,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:49,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:49,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:49,830 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:49,831 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:49,831 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2019-10-22 08:57:49,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/data/8c645425e/d37fa1a33b7e4fe5ad28ab6fcdf24d87/FLAGdea75c677 [2019-10-22 08:57:50,277 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:50,278 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2019-10-22 08:57:50,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/data/8c645425e/d37fa1a33b7e4fe5ad28ab6fcdf24d87/FLAGdea75c677 [2019-10-22 08:57:50,303 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/data/8c645425e/d37fa1a33b7e4fe5ad28ab6fcdf24d87 [2019-10-22 08:57:50,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:50,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:50,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:50,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:50,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:50,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306f10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50, skipping insertion in model container [2019-10-22 08:57:50,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,326 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:50,377 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:50,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:50,717 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:50,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:50,836 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:50,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50 WrapperNode [2019-10-22 08:57:50,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:50,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:50,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:50,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:50,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:50,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:50,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:50,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:50,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... [2019-10-22 08:57:50,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:50,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:50,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:50,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:50,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/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 [2019-10-22 08:57:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:57:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:51,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:51,900 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:51,900 INFO L284 CfgBuilder]: Removed 194 assume(true) statements. [2019-10-22 08:57:51,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:51 BoogieIcfgContainer [2019-10-22 08:57:51,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:51,902 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:57:51,903 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:57:51,906 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:57:51,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:51,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:57:50" (1/3) ... [2019-10-22 08:57:51,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bc44179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:51, skipping insertion in model container [2019-10-22 08:57:51,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:51,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:50" (2/3) ... [2019-10-22 08:57:51,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bc44179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:51, skipping insertion in model container [2019-10-22 08:57:51,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:51,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:51" (3/3) ... [2019-10-22 08:57:51,911 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2019-10-22 08:57:51,958 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:57:51,959 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:57:51,959 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:57:51,959 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:51,959 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:51,959 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:57:51,959 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:51,960 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:57:51,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states. [2019-10-22 08:57:52,002 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-10-22 08:57:52,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:52,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:52,010 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:57:52,010 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:52,010 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:57:52,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states. [2019-10-22 08:57:52,017 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-10-22 08:57:52,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:52,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:52,018 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:57:52,019 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:52,024 INFO L791 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);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(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1); 4#L-1true havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 65#L678true 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; 73#L686true main_#t~ret47 := valid_product_#res;main_~tmp~4 := main_#t~ret47;havoc main_#t~ret47; 76#L642true assume 0 != main_~tmp~4; 43#L615true havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 33#L417-1true [2019-10-22 08:57:52,025 INFO L793 eck$LassoCheckResult]: Loop: 33#L417-1true assume !false; 94#L928true assume test_~splverifierCounter~0 < 4; 27#L929true test_~tmp~10 := test_#t~nondet71;havoc test_#t~nondet71; 39#L937true assume !(0 != test_~tmp~10); 41#L937-1true test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 97#L947true assume !(0 != test_~tmp___0~3); 99#L947-1true test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 130#L957true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3#L965-2true assume !(0 != ~pumpRunning~0); 131#L701true assume !(0 != ~systemActive~0); 71#L708true havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 90#L526true __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 28#L417true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 33#L417-1true [2019-10-22 08:57:52,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:52,031 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:57:52,039 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:52,039 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163997338] [2019-10-22 08:57:52,040 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:52,040 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:52,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:52,853 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:52,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:52,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1678143613, now seen corresponding path program 1 times [2019-10-22 08:57:52,855 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:52,855 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081474609] [2019-10-22 08:57:52,856 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:52,856 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:52,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:52,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081474609] [2019-10-22 08:57:52,913 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:52,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:52,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519650194] [2019-10-22 08:57:52,920 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:57:52,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:52,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:52,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:52,939 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states. [2019-10-22 08:57:52,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:52,995 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2019-10-22 08:57:53,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:53,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 188 transitions. [2019-10-22 08:57:53,006 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-10-22 08:57:53,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2019-10-22 08:57:53,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2019-10-22 08:57:53,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2019-10-22 08:57:53,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2019-10-22 08:57:53,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:57:53,022 INFO L688 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2019-10-22 08:57:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2019-10-22 08:57:53,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-22 08:57:53,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-22 08:57:53,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2019-10-22 08:57:53,061 INFO L711 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2019-10-22 08:57:53,061 INFO L591 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2019-10-22 08:57:53,061 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:57:53,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2019-10-22 08:57:53,063 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-10-22 08:57:53,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:53,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:53,069 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:57:53,071 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:53,071 INFO L791 eck$LassoCheckResult]: Stem: 394#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);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(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1); 276#L-1 havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 277#L678 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; 363#L686 main_#t~ret47 := valid_product_#res;main_~tmp~4 := main_#t~ret47;havoc main_#t~ret47; 371#L642 assume 0 != main_~tmp~4; 335#L615 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 318#L417-1 [2019-10-22 08:57:53,072 INFO L793 eck$LassoCheckResult]: Loop: 318#L417-1 assume !false; 321#L928 assume test_~splverifierCounter~0 < 4; 315#L929 test_~tmp~10 := test_#t~nondet71;havoc test_#t~nondet71; 316#L937 assume !(0 != test_~tmp~10); 329#L937-1 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 332#L947 assume !(0 != test_~tmp___0~3); 382#L947-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 386#L957 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 273#L965-2 assume !(0 != ~pumpRunning~0); 274#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 395#L759 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 360#L733-1 assume !(0 == ~pumpRunning~0); 356#L708 havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 370#L526 __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 317#L417 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 318#L417-1 [2019-10-22 08:57:53,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:53,072 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:57:53,072 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:53,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376567418] [2019-10-22 08:57:53,073 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:53,485 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:53,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:53,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1068993908, now seen corresponding path program 1 times [2019-10-22 08:57:53,486 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:53,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087237278] [2019-10-22 08:57:53,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:53,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087237278] [2019-10-22 08:57:53,498 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:53,498 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:53,498 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265727647] [2019-10-22 08:57:53,498 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:57:53,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:53,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:53,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:53,499 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 Second operand 3 states. [2019-10-22 08:57:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:53,598 INFO L93 Difference]: Finished difference Result 166 states and 228 transitions. [2019-10-22 08:57:53,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:53,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 228 transitions. [2019-10-22 08:57:53,602 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-10-22 08:57:53,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 166 states and 228 transitions. [2019-10-22 08:57:53,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2019-10-22 08:57:53,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2019-10-22 08:57:53,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 166 states and 228 transitions. [2019-10-22 08:57:53,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:57:53,605 INFO L688 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2019-10-22 08:57:53,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states and 228 transitions. [2019-10-22 08:57:53,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2019-10-22 08:57:53,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2019-10-22 08:57:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2019-10-22 08:57:53,613 INFO L711 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2019-10-22 08:57:53,613 INFO L591 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2019-10-22 08:57:53,613 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:57:53,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 228 transitions. [2019-10-22 08:57:53,615 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-10-22 08:57:53,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:53,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:53,621 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:57:53,621 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:53,621 INFO L791 eck$LassoCheckResult]: Stem: 696#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);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(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1); 572#L-1 havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 573#L678 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; 660#L686 main_#t~ret47 := valid_product_#res;main_~tmp~4 := main_#t~ret47;havoc main_#t~ret47; 669#L642 assume 0 != main_~tmp~4; 633#L615 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 614#L417-1 [2019-10-22 08:57:53,621 INFO L793 eck$LassoCheckResult]: Loop: 614#L417-1 assume !false; 617#L928 assume test_~splverifierCounter~0 < 4; 611#L929 test_~tmp~10 := test_#t~nondet71;havoc test_#t~nondet71; 612#L937 assume !(0 != test_~tmp~10); 627#L937-1 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 630#L947 assume !(0 != test_~tmp___0~3); 684#L947-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 688#L957 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 570#L965-2 assume !(0 != ~pumpRunning~0); 571#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 697#L759 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 657#L733-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 658#L534-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 695#L539-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 645#L879-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 646#L879-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 574#L885-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 575#L737-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 667#L708 havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 668#L526 __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 613#L417 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 614#L417-1 [2019-10-22 08:57:53,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:53,622 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:57:53,622 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:53,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250957038] [2019-10-22 08:57:53,622 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,622 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:53,875 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:53,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:53,875 INFO L82 PathProgramCache]: Analyzing trace with hash 87587064, now seen corresponding path program 1 times [2019-10-22 08:57:53,875 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:53,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767091361] [2019-10-22 08:57:53,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:53,887 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:53,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:53,887 INFO L82 PathProgramCache]: Analyzing trace with hash 543658258, now seen corresponding path program 1 times [2019-10-22 08:57:53,887 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:53,888 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742274666] [2019-10-22 08:57:53,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:53,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:54,125 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:54,242 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-10-22 08:58:17,217 WARN L191 SmtUtils]: Spent 22.91 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:58:29,468 WARN L191 SmtUtils]: Spent 12.25 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:58:29,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:58:29 BoogieIcfgContainer [2019-10-22 08:58:29,537 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:58:29,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:29,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:29,538 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:29,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:51" (3/4) ... [2019-10-22 08:58:29,542 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:58:29,590 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ebf6b206-a1eb-4b06-8839-12cbff520cef/bin/uautomizer/witness.graphml [2019-10-22 08:58:29,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:29,597 INFO L168 Benchmark]: Toolchain (without parser) took 39285.24 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.1 MB). Free memory was 937.0 MB in the beginning and 1.0 GB in the end (delta: -87.2 MB). Peak memory consumption was 140.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:29,598 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:29,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:29,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.30 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:29,599 INFO L168 Benchmark]: Boogie Preprocessor took 39.36 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:29,599 INFO L168 Benchmark]: RCFGBuilder took 938.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:29,600 INFO L168 Benchmark]: BuchiAutomizer took 37634.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.5 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 12.2 MB). Peak memory consumption was 289.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:29,600 INFO L168 Benchmark]: Witness Printer took 52.19 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:29,604 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 528.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.30 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.36 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 938.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37634.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.5 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 12.2 MB). Peak memory consumption was 289.5 MB. Max. memory is 11.5 GB. * Witness Printer took 52.19 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 166 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 37.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 166 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 350 SDtfs, 313 SDslu, 66 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 927]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5978dd80=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-10, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c68a0a=0, NULL=0, NULL=0, retValue_acc=0, NULL=-5, NULL=0, NULL=-15, NULL=-12, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f6c6997=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dfd7962=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@448b9e5a=0, NULL=0, NULL=0, NULL=-24, tmp___1=0, NULL=-14, NULL=-3, NULL=-16, tmp___0=0, NULL=-17, cleanupTimeShifts=4, NULL=-19, NULL=-8, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=-4, \result=0, NULL=-9, NULL=0, NULL=-1, NULL=0, NULL=0, \result=1, NULL=-21, head=0, pumpRunning=0, \result=0, retValue_acc=1, NULL=-22, tmp=1, NULL=0, NULL=-18, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22ed4492=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37d356f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70f94942=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@699b535=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25205f4a=0, NULL=-11, retValue_acc=0, tmp=1, tmp=0, tmp___0=0, tmp=1, tmp___2=54, retValue_acc=1, NULL=-20, splverifierCounter=0, head=0, NULL=0, NULL=-23, tmp=0, NULL=-25, NULL=0, NULL=-2, NULL=0, NULL=0, NULL=-6, NULL=-13, NULL=-7} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L451] int waterLevel = 1; [L452] int methaneLevelCritical = 0; [L554] int cleanupTimeShifts = 4; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L633] int retValue_acc ; [L634] int tmp ; [L682] int retValue_acc ; [L685] retValue_acc = 1 [L686] return (retValue_acc); [L640] tmp = valid_product() [L642] COND TRUE \read(tmp) [L918] int splverifierCounter ; [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L922] int tmp___2 ; [L925] splverifierCounter = 0 Loop: [L927] COND TRUE 1 [L929] COND TRUE splverifierCounter < 4 [L935] tmp = __VERIFIER_nondet_int() [L937] COND FALSE !(\read(tmp)) [L945] tmp___0 = __VERIFIER_nondet_int() [L947] COND FALSE !(\read(tmp___0)) [L955] tmp___2 = __VERIFIER_nondet_int() [L957] COND TRUE \read(tmp___2) [L912] systemActive = 1 [L701] COND FALSE !(\read(pumpRunning)) [L708] COND TRUE \read(systemActive) [L756] int tmp ; [L759] COND FALSE !(\read(pumpRunning)) [L730] int tmp ; [L733] COND TRUE ! pumpRunning [L871] int retValue_acc ; [L872] int tmp ; [L873] int tmp___0 ; [L531] int retValue_acc ; [L534] COND TRUE waterLevel < 2 [L535] retValue_acc = 1 [L536] return (retValue_acc); [L877] tmp = isHighWaterSensorDry() [L879] COND TRUE \read(tmp) [L880] tmp___0 = 0 [L884] retValue_acc = tmp___0 [L885] return (retValue_acc); [L735] tmp = isHighWaterLevel() [L737] COND FALSE !(\read(tmp)) [L410] int tmp ; [L411] int tmp___0 ; [L522] int retValue_acc ; [L525] retValue_acc = waterLevel [L526] return (retValue_acc); [L415] tmp = getWaterLevel() [L417] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...