./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.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_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/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 324eb41748355c32a9add81086317d66d1f7b200 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:55:45,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:45,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:45,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:45,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:45,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:45,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:45,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:45,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:45,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:45,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:45,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:45,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:45,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:45,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:45,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:45,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:45,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:45,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:45,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:45,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:45,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:45,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:45,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:45,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:45,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:45,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:45,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:45,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:45,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:45,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:45,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:45,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:45,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:45,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:45,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:45,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:45,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:45,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:45,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:45,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:45,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:55:45,951 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:45,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:45,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:45,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:45,953 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:45,953 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:55:45,953 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:55:45,953 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:55:45,965 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:55:45,965 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:55:45,965 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:55:45,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:45,966 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:45,966 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:45,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:45,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:45,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:45,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:55:45,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:55:45,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:55:45,967 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:45,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:45,967 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:55:45,968 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:45,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:55:45,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:45,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:45,968 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:55:45,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:45,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:45,969 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:55:45,971 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:55:45,971 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_bad92815-ad66-4f4a-9411-f1a74c39950f/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 -> 324eb41748355c32a9add81086317d66d1f7b200 [2019-10-22 08:55:46,007 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:46,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:46,021 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:46,023 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:46,023 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:46,024 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2019-10-22 08:55:46,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/data/3e82cb1b7/f10992533617408f8f233cce6c0b28ed/FLAG597debf3b [2019-10-22 08:55:46,560 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:46,570 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2019-10-22 08:55:46,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/data/3e82cb1b7/f10992533617408f8f233cce6c0b28ed/FLAG597debf3b [2019-10-22 08:55:47,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/data/3e82cb1b7/f10992533617408f8f233cce6c0b28ed [2019-10-22 08:55:47,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:47,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:47,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:47,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:47,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:47,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b053f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47, skipping insertion in model container [2019-10-22 08:55:47,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,118 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:47,178 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:47,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:47,649 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:47,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:47,781 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:47,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47 WrapperNode [2019-10-22 08:55:47,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:47,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:47,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:47,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:47,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:47,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:47,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:47,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:47,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:47,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:47,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:47,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:47,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/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 08:55:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:55:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:55:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:48,948 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:48,948 INFO L284 CfgBuilder]: Removed 198 assume(true) statements. [2019-10-22 08:55:48,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:48 BoogieIcfgContainer [2019-10-22 08:55:48,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:48,950 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:55:48,950 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:55:48,955 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:55:48,956 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:48,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:55:47" (1/3) ... [2019-10-22 08:55:48,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d4abcc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:48, skipping insertion in model container [2019-10-22 08:55:48,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:48,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47" (2/3) ... [2019-10-22 08:55:48,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d4abcc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:48, skipping insertion in model container [2019-10-22 08:55:48,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:48,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:48" (3/3) ... [2019-10-22 08:55:48,960 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product57.cil.c [2019-10-22 08:55:49,016 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:55:49,016 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:55:49,016 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:55:49,016 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:49,017 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:49,017 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:55:49,017 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:49,017 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:55:49,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-10-22 08:55:49,074 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-10-22 08:55:49,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:49,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:49,087 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:49,087 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:49,087 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:55:49,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-10-22 08:55:49,102 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-10-22 08:55:49,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:49,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:49,103 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:49,104 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:49,110 INFO L791 eck$LassoCheckResult]: Stem: 97#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~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~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);~cleanupTimeShifts~0 := 4; 25#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 96#L542true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 118#L550true main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 55#L967true assume 0 != main_~tmp~10; 98#L944true havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 120#L572-1true [2019-10-22 08:55:49,111 INFO L793 eck$LassoCheckResult]: Loop: 120#L572-1true assume !false; 112#L831true assume test_~splverifierCounter~0 < 4; 60#L832true test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 63#L840true assume !(0 != test_~tmp~9); 65#L840-1true test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 114#L850true assume !(0 != test_~tmp___0~3); 117#L850-1true test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 50#L860true assume 0 != test_~tmp___2~0; 21#L866-2true assume !(0 != ~pumpRunning~0); 89#L611true assume !(0 != ~systemActive~0); 45#L618true havoc __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 78#L457-2true __utac_acc__Specification3_spec__1_#t~ret46 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret46;havoc __utac_acc__Specification3_spec__1_#t~ret46; 18#L566true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 120#L572-1true [2019-10-22 08:55:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:49,126 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:55:49,135 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:49,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455071830] [2019-10-22 08:55:49,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:49,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:49,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:50,055 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:50,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:50,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1679097931, now seen corresponding path program 1 times [2019-10-22 08:55:50,057 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:50,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130670104] [2019-10-22 08:55:50,058 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:50,058 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:50,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:50,084 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:50,086 INFO L82 PathProgramCache]: Analyzing trace with hash 35181007, now seen corresponding path program 1 times [2019-10-22 08:55:50,087 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:50,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231311714] [2019-10-22 08:55:50,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:50,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:50,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:50,250 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 08:55:50,251 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231311714] [2019-10-22 08:55:50,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:50,252 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:55:50,252 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636564584] [2019-10-22 08:55:50,486 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2019-10-22 08:55:50,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:50,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:50,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:50,521 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 6 states. [2019-10-22 08:55:50,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:50,686 INFO L93 Difference]: Finished difference Result 138 states and 196 transitions. [2019-10-22 08:55:50,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:50,691 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 196 transitions. [2019-10-22 08:55:50,695 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-10-22 08:55:50,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 131 states and 189 transitions. [2019-10-22 08:55:50,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 131 [2019-10-22 08:55:50,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 131 [2019-10-22 08:55:50,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 189 transitions. [2019-10-22 08:55:50,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:55:50,705 INFO L688 BuchiCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-10-22 08:55:50,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 189 transitions. [2019-10-22 08:55:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-22 08:55:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-22 08:55:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2019-10-22 08:55:50,743 INFO L711 BuchiCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-10-22 08:55:50,743 INFO L591 BuchiCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-10-22 08:55:50,743 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:55:50,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 189 transitions. [2019-10-22 08:55:50,746 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-10-22 08:55:50,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:50,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:50,747 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:50,747 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:50,748 INFO L791 eck$LassoCheckResult]: Stem: 404#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~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~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);~cleanupTimeShifts~0 := 4; 335#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 336#L542 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 403#L550 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 364#L967 assume 0 != main_~tmp~10; 365#L944 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 328#L572-1 [2019-10-22 08:55:50,748 INFO L793 eck$LassoCheckResult]: Loop: 328#L572-1 assume !false; 414#L831 assume test_~splverifierCounter~0 < 4; 372#L832 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 373#L840 assume !(0 != test_~tmp~9); 376#L840-1 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 377#L850 assume !(0 != test_~tmp___0~3); 369#L850-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 359#L860 assume 0 != test_~tmp___2~0; 312#L866-2 assume !(0 != ~pumpRunning~0); 295#L611 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 389#L669 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 313#L643-1 assume !(0 == ~pumpRunning~0); 303#L618 havoc __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 354#L457-2 __utac_acc__Specification3_spec__1_#t~ret46 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret46;havoc __utac_acc__Specification3_spec__1_#t~ret46; 327#L566 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 328#L572-1 [2019-10-22 08:55:50,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:50,749 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:55:50,749 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:50,749 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4725381] [2019-10-22 08:55:50,749 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:50,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:50,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:51,167 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:51,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:51,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1986081058, now seen corresponding path program 1 times [2019-10-22 08:55:51,168 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:51,168 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945390097] [2019-10-22 08:55:51,169 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:51,169 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:51,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:51,180 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 08:55:51,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945390097] [2019-10-22 08:55:51,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:51,181 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:51,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615226996] [2019-10-22 08:55:51,182 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:55:51,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:51,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:51,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:51,183 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-10-22 08:55:51,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:51,295 INFO L93 Difference]: Finished difference Result 178 states and 246 transitions. [2019-10-22 08:55:51,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:51,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 246 transitions. [2019-10-22 08:55:51,300 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-10-22 08:55:51,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 178 states and 246 transitions. [2019-10-22 08:55:51,302 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 178 [2019-10-22 08:55:51,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 178 [2019-10-22 08:55:51,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 178 states and 246 transitions. [2019-10-22 08:55:51,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:55:51,305 INFO L688 BuchiCegarLoop]: Abstraction has 178 states and 246 transitions. [2019-10-22 08:55:51,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states and 246 transitions. [2019-10-22 08:55:51,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2019-10-22 08:55:51,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-10-22 08:55:51,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 246 transitions. [2019-10-22 08:55:51,319 INFO L711 BuchiCegarLoop]: Abstraction has 178 states and 246 transitions. [2019-10-22 08:55:51,319 INFO L591 BuchiCegarLoop]: Abstraction has 178 states and 246 transitions. [2019-10-22 08:55:51,319 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:55:51,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 178 states and 246 transitions. [2019-10-22 08:55:51,320 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-10-22 08:55:51,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:51,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:51,322 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:51,323 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 08:55:51,323 INFO L791 eck$LassoCheckResult]: Stem: 723#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~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~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);~cleanupTimeShifts~0 := 4; 652#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 653#L542 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 722#L550 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 683#L967 assume 0 != main_~tmp~10; 684#L944 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 644#L572-1 [2019-10-22 08:55:51,324 INFO L793 eck$LassoCheckResult]: Loop: 644#L572-1 assume !false; 733#L831 assume test_~splverifierCounter~0 < 4; 691#L832 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 692#L840 assume !(0 != test_~tmp~9); 695#L840-1 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 696#L850 assume !(0 != test_~tmp___0~3); 686#L850-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 678#L860 assume 0 != test_~tmp___2~0; 630#L866-2 assume !(0 != ~pumpRunning~0); 647#L611 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 708#L669 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 631#L643-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 632#L497-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 665#L502-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 680#L789-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 745#L789-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 737#L795-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 712#L647-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 670#L618 havoc __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 673#L457-2 __utac_acc__Specification3_spec__1_#t~ret46 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret46;havoc __utac_acc__Specification3_spec__1_#t~ret46; 643#L566 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 644#L572-1 [2019-10-22 08:55:51,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:51,326 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:55:51,326 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:51,326 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881795640] [2019-10-22 08:55:51,326 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:51,326 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:51,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:51,640 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:51,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:51,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1392929194, now seen corresponding path program 1 times [2019-10-22 08:55:51,641 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:51,641 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952789880] [2019-10-22 08:55:51,642 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:51,642 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:51,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:51,661 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:51,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:51,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1849000388, now seen corresponding path program 1 times [2019-10-22 08:55:51,662 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:51,662 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874577116] [2019-10-22 08:55:51,662 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:51,662 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:51,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:51,726 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 08:55:51,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874577116] [2019-10-22 08:55:51,726 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:51,726 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:51,726 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505362023] [2019-10-22 08:55:51,857 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-10-22 08:55:51,919 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:51,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:55:51,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:51,919 INFO L87 Difference]: Start difference. First operand 178 states and 246 transitions. cyclomatic complexity: 70 Second operand 5 states. [2019-10-22 08:55:52,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:52,151 INFO L93 Difference]: Finished difference Result 621 states and 863 transitions. [2019-10-22 08:55:52,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:55:52,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 621 states and 863 transitions. [2019-10-22 08:55:52,160 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 452 [2019-10-22 08:55:52,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 621 states to 621 states and 863 transitions. [2019-10-22 08:55:52,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 621 [2019-10-22 08:55:52,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 621 [2019-10-22 08:55:52,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 621 states and 863 transitions. [2019-10-22 08:55:52,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:55:52,179 INFO L688 BuchiCegarLoop]: Abstraction has 621 states and 863 transitions. [2019-10-22 08:55:52,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states and 863 transitions. [2019-10-22 08:55:52,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 350. [2019-10-22 08:55:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-10-22 08:55:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 478 transitions. [2019-10-22 08:55:52,212 INFO L711 BuchiCegarLoop]: Abstraction has 350 states and 478 transitions. [2019-10-22 08:55:52,212 INFO L591 BuchiCegarLoop]: Abstraction has 350 states and 478 transitions. [2019-10-22 08:55:52,212 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 08:55:52,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 350 states and 478 transitions. [2019-10-22 08:55:52,219 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2019-10-22 08:55:52,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:52,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:52,220 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:52,220 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, 1, 1] [2019-10-22 08:55:52,221 INFO L791 eck$LassoCheckResult]: Stem: 1553#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~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~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);~cleanupTimeShifts~0 := 4; 1470#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1471#L542 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1552#L550 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 1510#L967 assume 0 != main_~tmp~10; 1511#L944 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1554#L572-1 [2019-10-22 08:55:52,221 INFO L793 eck$LassoCheckResult]: Loop: 1554#L572-1 assume !false; 1565#L831 assume test_~splverifierCounter~0 < 4; 1566#L832 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 1772#L840 assume !(0 != test_~tmp~9); 1770#L840-1 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 1769#L850 assume !(0 != test_~tmp___0~3); 1768#L850-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 1767#L860 assume 0 != test_~tmp___2~0; 1765#L866-2 assume !(0 != ~pumpRunning~0); 1750#L611 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1536#L669 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1446#L643-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1447#L497-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1485#L502-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 1507#L789-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1584#L789-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1572#L795-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 1573#L647-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1492#L618 havoc __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1606#L457-2 __utac_acc__Specification3_spec__1_#t~ret46 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret46;havoc __utac_acc__Specification3_spec__1_#t~ret46; 1607#L566 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);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; 1601#L489 __utac_acc__Specification3_spec__1_#t~ret47 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 1602#L572 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1554#L572-1 [2019-10-22 08:55:52,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:52,221 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-10-22 08:55:52,225 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:52,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962522338] [2019-10-22 08:55:52,225 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:52,225 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:52,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:52,571 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:52,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:52,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1424832324, now seen corresponding path program 1 times [2019-10-22 08:55:52,571 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:52,572 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576991683] [2019-10-22 08:55:52,572 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:52,572 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:52,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:52,582 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:52,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:52,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1227079082, now seen corresponding path program 1 times [2019-10-22 08:55:52,583 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:52,583 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789979884] [2019-10-22 08:55:52,583 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:52,583 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:52,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:52,875 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:53,023 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-10-22 08:56:12,381 WARN L191 SmtUtils]: Spent 19.28 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:56:23,916 WARN L191 SmtUtils]: Spent 11.53 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:56:23,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:23 BoogieIcfgContainer [2019-10-22 08:56:23,985 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:23,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:23,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:23,986 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:23,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:48" (3/4) ... [2019-10-22 08:56:23,990 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:56:24,041 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bad92815-ad66-4f4a-9411-f1a74c39950f/bin/uautomizer/witness.graphml [2019-10-22 08:56:24,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:24,042 INFO L168 Benchmark]: Toolchain (without parser) took 36943.02 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 237.5 MB). Free memory was 944.5 MB in the beginning and 844.6 MB in the end (delta: 99.9 MB). Peak memory consumption was 337.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:24,043 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:24,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:24,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.89 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 08:56:24,044 INFO L168 Benchmark]: Boogie Preprocessor took 51.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:24,044 INFO L168 Benchmark]: RCFGBuilder took 1048.61 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: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:24,045 INFO L168 Benchmark]: BuchiAutomizer took 35035.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 102.2 MB). Free memory was 1.0 GB in the beginning and 855.5 MB in the end (delta: 187.5 MB). Peak memory consumption was 302.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:24,046 INFO L168 Benchmark]: Witness Printer took 55.33 ms. Allocated memory is still 1.3 GB. Free memory was 855.5 MB in the beginning and 844.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:24,048 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 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 681.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.89 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. * Boogie Preprocessor took 51.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1048.61 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: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35035.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 102.2 MB). Free memory was 1.0 GB in the beginning and 855.5 MB in the end (delta: 187.5 MB). Peak memory consumption was 302.2 MB. Max. memory is 11.5 GB. * Witness Printer took 55.33 ms. Allocated memory is still 1.3 GB. Free memory was 855.5 MB in the beginning and 844.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 350 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 34.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 34.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 271 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 350 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 629 SDtfs, 1474 SDslu, 936 SDs, 0 SdLazy, 143 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 830]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6845} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=6845, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cdb78a6=0, NULL=0, NULL=0, NULL=6844, NULL=0, NULL=-13, NULL=-4, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a55a61c=0, tmp___0=0, NULL=0, NULL=0, NULL=-19, tmp___1=0, tmp=0, NULL=-7, NULL=-21, tmp___0=1, NULL=-6, NULL=-18, NULL=-10, tmp=0, cleanupTimeShifts=4, NULL=-12, NULL=-8, tmp=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=-2, retValue_acc=0, \result=0, NULL=-20, NULL=0, NULL=-16, NULL=0, NULL=0, \result=1, retValue_acc=0, NULL=-22, head=0, pumpRunning=0, \result=0, retValue_acc=1, NULL=-1, NULL=0, NULL=0, NULL=-17, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2874fb99=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21e7b66b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51996164=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36a6a291=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32fdddf2=0, NULL=-9, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c9155e8=0, tmp=1, tmp___0=0, tmp___2=51, retValue_acc=1, NULL=-5, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f1bcbed=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36728f9e=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63114c0f=0, tmp___1=0, head=0, NULL=0, tmp=0, NULL=-23, NULL=-11, NULL=0, NULL=-24, NULL=0, NULL=0, NULL=-15, NULL=-3, NULL=-14} - 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; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L604] int pumpRunning = 0; [L605] int systemActive = 1; [L885] int cleanupTimeShifts = 4; [L958] int retValue_acc ; [L959] int tmp ; [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); [L965] tmp = valid_product() [L967] COND TRUE \read(tmp) [L821] int splverifierCounter ; [L822] int tmp ; [L823] int tmp___0 ; [L824] int tmp___1 ; [L825] int tmp___2 ; [L828] splverifierCounter = 0 Loop: [L830] COND TRUE 1 [L832] COND TRUE splverifierCounter < 4 [L838] tmp = __VERIFIER_nondet_int() [L840] COND FALSE !(\read(tmp)) [L848] tmp___0 = __VERIFIER_nondet_int() [L850] COND FALSE !(\read(tmp___0)) [L858] tmp___2 = __VERIFIER_nondet_int() [L860] COND TRUE \read(tmp___2) [L611] COND FALSE !(\read(pumpRunning)) [L618] COND TRUE \read(systemActive) [L666] int tmp ; [L669] COND FALSE !(\read(pumpRunning)) [L640] int tmp ; [L643] COND TRUE ! pumpRunning [L781] int retValue_acc ; [L782] int tmp ; [L783] int tmp___0 ; [L494] int retValue_acc ; [L497] COND TRUE waterLevel < 2 [L498] retValue_acc = 1 [L499] return (retValue_acc); [L787] tmp = isHighWaterSensorDry() [L789] COND TRUE \read(tmp) [L790] tmp___0 = 0 [L794] retValue_acc = tmp___0 [L795] return (retValue_acc); [L645] tmp = isHighWaterLevel() [L647] COND FALSE !(\read(tmp)) [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] return (retValue_acc); [L570] tmp___0 = getWaterLevel() [L572] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...