./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/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 9b7549a4c392cf253bbff25b83e97c5c89bfd389 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:50:50,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:50,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:50,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:50,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:50,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:50,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:50,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:50,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:50,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:50,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:50,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:50,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:50,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:50,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:50,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:50,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:50,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:50,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:50,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:50,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:50,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:50,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:50,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:50,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:50,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:50,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:50,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:50,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:50,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:50,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:50,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:50,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:50,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:50,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:50,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:50,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:50,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:50,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:50,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:50,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:50,055 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:50:50,070 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:50,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:50,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:50,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:50,072 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:50,072 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:50:50,072 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:50:50,072 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:50:50,073 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:50:50,073 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:50:50,073 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:50:50,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:50,074 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:50:50,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:50:50,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:50:50,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:50:50,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:50,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:50:50,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:50:50,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:50:50,075 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:50:50,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:50,076 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:50:50,076 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:50,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:50:50,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:50,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:50,077 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:50:50,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:50,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:50:50,077 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:50:50,078 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:50:50,078 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/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/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 -> 9b7549a4c392cf253bbff25b83e97c5c89bfd389 [2019-11-25 08:50:50,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:50,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:50,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:50,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:50,239 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:50,239 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2019-11-25 08:50:50,289 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/data/b24fcca08/32e7e6c8fd2d44febdb569cb8a1b48e0/FLAG0340be5c1 [2019-11-25 08:50:50,721 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:50,721 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2019-11-25 08:50:50,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/data/b24fcca08/32e7e6c8fd2d44febdb569cb8a1b48e0/FLAG0340be5c1 [2019-11-25 08:50:50,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/data/b24fcca08/32e7e6c8fd2d44febdb569cb8a1b48e0 [2019-11-25 08:50:50,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:50,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:50,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:50,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:50,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:50,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ccfaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50, skipping insertion in model container [2019-11-25 08:50:50,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:50,819 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:51,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:51,137 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:51,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:51,254 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:50:51,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51 WrapperNode [2019-11-25 08:50:51,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:51,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:51,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:50:51,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:50:51,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:51,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:50:51,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:50:51,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:50:51,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:50:51,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:50:51,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:50:51,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:50:51,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/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 [2019-11-25 08:50:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:50:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:50:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:50:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:50:52,339 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:50:52,339 INFO L284 CfgBuilder]: Removed 194 assume(true) statements. [2019-11-25 08:50:52,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:52 BoogieIcfgContainer [2019-11-25 08:50:52,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:50:52,341 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:50:52,341 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:50:52,345 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:50:52,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:50:52,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:50:50" (1/3) ... [2019-11-25 08:50:52,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66b4b5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:50:52, skipping insertion in model container [2019-11-25 08:50:52,347 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:50:52,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (2/3) ... [2019-11-25 08:50:52,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66b4b5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:50:52, skipping insertion in model container [2019-11-25 08:50:52,347 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:50:52,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:52" (3/3) ... [2019-11-25 08:50:52,349 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2019-11-25 08:50:52,388 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:50:52,388 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:50:52,388 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:50:52,388 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:50:52,389 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:50:52,389 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:50:52,389 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:50:52,389 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:50:52,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states. [2019-11-25 08:50:52,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-25 08:50:52,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:52,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:52,449 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:52,449 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:52,449 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:50:52,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states. [2019-11-25 08:50:52,465 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-25 08:50:52,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:52,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:52,467 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:52,467 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:52,472 INFO L794 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(110, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 3 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(80, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(117, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(109, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(112, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(32, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(77, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(101, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(116, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(104, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string66.base, #t~string66.offset, 1);call write~init~int(82, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(73, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(84, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 4 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(75, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 64#L906true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 71#L914true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 52#L507true assume 0 != main_~tmp~3; 127#L478true ~methAndRunningLastTime~0 := 0; 70#L925true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 72#L936-1true [2019-11-25 08:50:52,472 INFO L796 eck$LassoCheckResult]: Loop: 72#L936-1true assume !false; 94#L735true assume test_~splverifierCounter~0 < 4; 22#L736true test_~tmp~8 := test_#t~nondet57;havoc test_#t~nondet57; 26#L744true assume !(0 != test_~tmp~8); 28#L744-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 99#L754true assume !(0 != test_~tmp___0~1); 101#L754-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 10#L764true assume 0 != test_~tmp___2~0; 125#L770-2true assume !(0 != ~pumpRunning~0); 118#L536true assume !(0 != ~systemActive~0); 43#L543true havoc __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 128#L833-3true __utac_acc__Specification2_spec__2_#t~ret72 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret72;havoc __utac_acc__Specification2_spec__2_#t~ret72; 68#L936true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 72#L936-1true [2019-11-25 08:50:52,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:52,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-25 08:50:52,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:52,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198267215] [2019-11-25 08:50:52,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:52,849 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:52,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:52,850 INFO L82 PathProgramCache]: Analyzing trace with hash 4969610, now seen corresponding path program 1 times [2019-11-25 08:50:52,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:52,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779690009] [2019-11-25 08:50:52,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:52,875 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:52,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:52,877 INFO L82 PathProgramCache]: Analyzing trace with hash 838266116, now seen corresponding path program 1 times [2019-11-25 08:50:52,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:52,877 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387005991] [2019-11-25 08:50:52,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:53,024 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387005991] [2019-11-25 08:50:53,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:53,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:50:53,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978564003] [2019-11-25 08:50:53,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:53,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:50:53,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:50:53,147 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 6 states. [2019-11-25 08:50:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:53,308 INFO L93 Difference]: Finished difference Result 130 states and 185 transitions. [2019-11-25 08:50:53,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:50:53,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 185 transitions. [2019-11-25 08:50:53,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-11-25 08:50:53,319 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 123 states and 178 transitions. [2019-11-25 08:50:53,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2019-11-25 08:50:53,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2019-11-25 08:50:53,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 178 transitions. [2019-11-25 08:50:53,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:50:53,323 INFO L688 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2019-11-25 08:50:53,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 178 transitions. [2019-11-25 08:50:53,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-11-25 08:50:53,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-25 08:50:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 178 transitions. [2019-11-25 08:50:53,354 INFO L711 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2019-11-25 08:50:53,354 INFO L591 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2019-11-25 08:50:53,354 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:50:53,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 178 transitions. [2019-11-25 08:50:53,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-11-25 08:50:53,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:53,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:53,357 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:53,357 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:53,358 INFO L794 eck$LassoCheckResult]: Stem: 391#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(110, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 3 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(80, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(117, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(109, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(112, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(32, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(77, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(101, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(116, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(104, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string66.base, #t~string66.offset, 1);call write~init~int(82, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(73, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(84, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 4 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(75, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 287#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 288#L906 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 369#L914 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 358#L507 assume 0 != main_~tmp~3; 359#L478 ~methAndRunningLastTime~0 := 0; 376#L925 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 300#L936-1 [2019-11-25 08:50:53,358 INFO L796 eck$LassoCheckResult]: Loop: 300#L936-1 assume !false; 379#L735 assume test_~splverifierCounter~0 < 4; 320#L736 test_~tmp~8 := test_#t~nondet57;havoc test_#t~nondet57; 321#L744 assume !(0 != test_~tmp~8); 293#L744-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 327#L754 assume !(0 != test_~tmp___0~1); 390#L754-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 294#L764 assume 0 != test_~tmp___2~0; 296#L770-2 assume !(0 != ~pumpRunning~0); 356#L536 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 395#L594 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret36, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 313#L568-1 assume !(0 == ~pumpRunning~0); 312#L543 havoc __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 347#L833-3 __utac_acc__Specification2_spec__2_#t~ret72 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret72;havoc __utac_acc__Specification2_spec__2_#t~ret72; 375#L936 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 300#L936-1 [2019-11-25 08:50:53,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:53,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-25 08:50:53,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:53,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208383860] [2019-11-25 08:50:53,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:53,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:53,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:53,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1695508204, now seen corresponding path program 1 times [2019-11-25 08:50:53,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:53,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674020400] [2019-11-25 08:50:53,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:53,461 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674020400] [2019-11-25 08:50:53,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:53,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:50:53,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741660744] [2019-11-25 08:50:53,462 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:50:53,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:53,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:50:53,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:50:53,463 INFO L87 Difference]: Start difference. First operand 123 states and 178 transitions. cyclomatic complexity: 57 Second operand 3 states. [2019-11-25 08:50:53,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:53,586 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2019-11-25 08:50:53,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:50:53,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 232 transitions. [2019-11-25 08:50:53,590 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-11-25 08:50:53,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 167 states and 232 transitions. [2019-11-25 08:50:53,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 167 [2019-11-25 08:50:53,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 167 [2019-11-25 08:50:53,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 167 states and 232 transitions. [2019-11-25 08:50:53,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:50:53,595 INFO L688 BuchiCegarLoop]: Abstraction has 167 states and 232 transitions. [2019-11-25 08:50:53,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states and 232 transitions. [2019-11-25 08:50:53,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-11-25 08:50:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-25 08:50:53,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 232 transitions. [2019-11-25 08:50:53,616 INFO L711 BuchiCegarLoop]: Abstraction has 167 states and 232 transitions. [2019-11-25 08:50:53,616 INFO L591 BuchiCegarLoop]: Abstraction has 167 states and 232 transitions. [2019-11-25 08:50:53,616 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:50:53,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 232 transitions. [2019-11-25 08:50:53,620 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-11-25 08:50:53,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:53,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:53,622 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:53,623 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:53,623 INFO L794 eck$LassoCheckResult]: Stem: 694#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(110, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 3 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(80, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(117, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(109, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(112, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(32, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(77, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(101, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(116, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(104, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string66.base, #t~string66.offset, 1);call write~init~int(82, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(73, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(84, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 4 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(75, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 582#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 583#L906 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 669#L914 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 658#L507 assume 0 != main_~tmp~3; 659#L478 ~methAndRunningLastTime~0 := 0; 676#L925 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 677#L936-1 [2019-11-25 08:50:53,623 INFO L796 eck$LassoCheckResult]: Loop: 677#L936-1 assume !false; 680#L735 assume test_~splverifierCounter~0 < 4; 734#L736 test_~tmp~8 := test_#t~nondet57;havoc test_#t~nondet57; 733#L744 assume !(0 != test_~tmp~8); 731#L744-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 730#L754 assume !(0 != test_~tmp___0~1); 695#L754-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 589#L764 assume 0 != test_~tmp___2~0; 591#L770-2 assume !(0 != ~pumpRunning~0); 704#L536 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 699#L594 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret36, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 608#L568-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret56, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 609#L873-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 651#L878-1 isHighWaterLevel_#t~ret56 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret56;havoc isHighWaterLevel_#t~ret56; 681#L713-3 assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~0 := 1; 665#L713-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 628#L719-1 processEnvironment__wrappee__methaneQuery_#t~ret36 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret36;havoc processEnvironment__wrappee__methaneQuery_#t~ret36; 629#L572-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 640#L543 havoc __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 740#L833-3 __utac_acc__Specification2_spec__2_#t~ret72 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret72;havoc __utac_acc__Specification2_spec__2_#t~ret72; 738#L936 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 677#L936-1 [2019-11-25 08:50:53,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:53,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-25 08:50:53,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:53,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782250443] [2019-11-25 08:50:53,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:53,743 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:53,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:53,744 INFO L82 PathProgramCache]: Analyzing trace with hash -434026982, now seen corresponding path program 1 times [2019-11-25 08:50:53,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:53,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106674905] [2019-11-25 08:50:53,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:53,779 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106674905] [2019-11-25 08:50:53,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:53,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:50:53,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278396282] [2019-11-25 08:50:53,780 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:50:53,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:53,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:50:53,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:50:53,781 INFO L87 Difference]: Start difference. First operand 167 states and 232 transitions. cyclomatic complexity: 67 Second operand 4 states. [2019-11-25 08:50:53,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:53,897 INFO L93 Difference]: Finished difference Result 321 states and 439 transitions. [2019-11-25 08:50:53,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:50:53,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 439 transitions. [2019-11-25 08:50:53,901 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2019-11-25 08:50:53,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 321 states and 439 transitions. [2019-11-25 08:50:53,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 321 [2019-11-25 08:50:53,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 321 [2019-11-25 08:50:53,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 321 states and 439 transitions. [2019-11-25 08:50:53,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:50:53,909 INFO L688 BuchiCegarLoop]: Abstraction has 321 states and 439 transitions. [2019-11-25 08:50:53,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states and 439 transitions. [2019-11-25 08:50:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 179. [2019-11-25 08:50:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-11-25 08:50:53,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 244 transitions. [2019-11-25 08:50:53,921 INFO L711 BuchiCegarLoop]: Abstraction has 179 states and 244 transitions. [2019-11-25 08:50:53,921 INFO L591 BuchiCegarLoop]: Abstraction has 179 states and 244 transitions. [2019-11-25 08:50:53,921 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:50:53,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 244 transitions. [2019-11-25 08:50:53,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-11-25 08:50:53,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:53,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:53,924 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:53,924 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:53,924 INFO L794 eck$LassoCheckResult]: Stem: 1202#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(110, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 3 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(80, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(117, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(109, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(112, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(32, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(77, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(101, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(116, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(104, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string66.base, #t~string66.offset, 1);call write~init~int(82, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(73, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(84, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 4 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(75, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1080#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1081#L906 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1174#L914 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 1162#L507 assume 0 != main_~tmp~3; 1163#L478 ~methAndRunningLastTime~0 := 0; 1181#L925 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1093#L936-1 [2019-11-25 08:50:53,925 INFO L796 eck$LassoCheckResult]: Loop: 1093#L936-1 assume !false; 1182#L735 assume test_~splverifierCounter~0 < 4; 1113#L736 test_~tmp~8 := test_#t~nondet57;havoc test_#t~nondet57; 1114#L744 assume !(0 != test_~tmp~8); 1083#L744-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 1121#L754 assume !(0 != test_~tmp___0~1); 1201#L754-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 1087#L764 assume 0 != test_~tmp___2~0; 1089#L770-2 assume !(0 != ~pumpRunning~0); 1211#L536 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1206#L594 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret36, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1106#L568-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret56, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1107#L873-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1152#L878-1 isHighWaterLevel_#t~ret56 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret56;havoc isHighWaterLevel_#t~ret56; 1185#L713-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~0 := 0; 1169#L713-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1126#L719-1 processEnvironment__wrappee__methaneQuery_#t~ret36 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret36;havoc processEnvironment__wrappee__methaneQuery_#t~ret36; 1127#L572-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 1138#L543 havoc __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1147#L833-3 __utac_acc__Specification2_spec__2_#t~ret72 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret72;havoc __utac_acc__Specification2_spec__2_#t~ret72; 1180#L936 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 1093#L936-1 [2019-11-25 08:50:53,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:53,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-25 08:50:53,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:53,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704012634] [2019-11-25 08:50:53,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:53,994 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:53,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:53,995 INFO L82 PathProgramCache]: Analyzing trace with hash 2085932952, now seen corresponding path program 1 times [2019-11-25 08:50:53,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:53,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780033202] [2019-11-25 08:50:53,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:54,007 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:54,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:54,008 INFO L82 PathProgramCache]: Analyzing trace with hash -435892718, now seen corresponding path program 1 times [2019-11-25 08:50:54,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:54,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506412674] [2019-11-25 08:50:54,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:54,091 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:54,312 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-25 08:51:22,681 WARN L192 SmtUtils]: Spent 28.29 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-25 08:51:36,090 WARN L192 SmtUtils]: Spent 13.40 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-25 08:51:36,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:51:36 BoogieIcfgContainer [2019-11-25 08:51:36,165 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:51:36,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:36,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:36,167 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:36,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:52" (3/4) ... [2019-11-25 08:51:36,171 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:51:36,251 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_54e01bd5-a6db-431a-97e6-896b522ffd43/bin/uautomizer/witness.graphml [2019-11-25 08:51:36,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:36,253 INFO L168 Benchmark]: Toolchain (without parser) took 45489.97 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 283.6 MB). Free memory was 939.3 MB in the beginning and 1.3 GB in the end (delta: -319.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:36,253 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:36,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:36,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:36,254 INFO L168 Benchmark]: Boogie Preprocessor took 76.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:36,255 INFO L168 Benchmark]: RCFGBuilder took 903.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.8 MB). Peak memory consumption was 74.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:36,255 INFO L168 Benchmark]: BuchiAutomizer took 43824.09 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -262.1 MB). Peak memory consumption was 393.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:36,256 INFO L168 Benchmark]: Witness Printer took 84.85 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:36,258 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 491.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 105.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 903.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.8 MB). Peak memory consumption was 74.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43824.09 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -262.1 MB). Peak memory consumption was 393.0 MB. Max. memory is 11.5 GB. * Witness Printer took 84.85 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 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 179 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 43.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 43.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 142 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 179 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 533 SDtfs, 964 SDslu, 367 SDs, 0 SdLazy, 96 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 734]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7801} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=10853, NULL=7801, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=10857, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, NULL=7809, NULL=0, NULL=0, NULL=7803, tmp=0, tmp___1=0, NULL=10858, retValue_acc=0, NULL=10850, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c82aa80=0, NULL=10849, NULL=10848, cleanupTimeShifts=4, NULL=7806, NULL=10846, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b92fda3=0, NULL=10854, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, \result=0, NULL=10859, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bb98014=0, NULL=0, NULL=0, \result=1, retValue_acc=1, NULL=10847, head=0, pumpRunning=0, NULL=10845, \result=0, NULL=10855, tmp=1, NULL=0, NULL=7808, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e9c4159=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ca1400c=0, NULL=0, NULL=0, \result=1, NULL=10856, tmp=1, tmp___2=61, NULL=10861, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24613d4e=0, tmp___0=0, splverifierCounter=0, methAndRunningLastTime=0, \result=0, NULL=7807, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bb963aa=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c9cb30b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b1c00a3=0, head=0, NULL=0, tmp=0, NULL=7804, NULL=7802, NULL=0, NULL=10852, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6689cae2=0, NULL=0, NULL=7805, NULL=10860, NULL=10851, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L415] int cleanupTimeShifts = 4; [L528] int pumpRunning = 0; [L529] int systemActive = 1; [L790] int waterLevel = 1; [L791] int methaneLevelCritical = 0; [L919] int methAndRunningLastTime ; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L498] int retValue_acc ; [L499] int tmp ; [L910] int retValue_acc ; [L913] retValue_acc = 1 [L914] return (retValue_acc); [L505] tmp = valid_product() [L507] COND TRUE \read(tmp) [L924] methAndRunningLastTime = 0 [L725] int splverifierCounter ; [L726] int tmp ; [L727] int tmp___0 ; [L728] int tmp___1 ; [L729] int tmp___2 ; [L732] splverifierCounter = 0 Loop: [L734] COND TRUE 1 [L736] COND TRUE splverifierCounter < 4 [L742] tmp = __VERIFIER_nondet_int() [L744] COND FALSE !(\read(tmp)) [L752] tmp___0 = __VERIFIER_nondet_int() [L754] COND FALSE !(\read(tmp___0)) [L762] tmp___2 = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp___2) [L536] COND FALSE !(\read(pumpRunning)) [L543] COND TRUE \read(systemActive) [L591] int tmp ; [L594] COND FALSE !(\read(pumpRunning)) [L565] int tmp ; [L568] COND TRUE ! pumpRunning [L705] int retValue_acc ; [L706] int tmp ; [L707] int tmp___0 ; [L870] int retValue_acc ; [L873] COND TRUE waterLevel < 2 [L874] retValue_acc = 1 [L875] return (retValue_acc); [L711] tmp = isHighWaterSensorDry() [L713] COND TRUE \read(tmp) [L714] tmp___0 = 0 [L718] retValue_acc = tmp___0 [L719] return (retValue_acc); [L570] tmp = isHighWaterLevel() [L572] COND FALSE !(\read(tmp)) [L929] int tmp ; [L930] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = methaneLevelCritical [L833] return (retValue_acc); [L934] tmp = isMethaneLevelCritical() [L936] COND FALSE !(\read(tmp)) [L952] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...