./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.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_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/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 34d3cbbc8b4a786ebf9108ab9ac810ac8aab3a53 ................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:53:37,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:37,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:37,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:37,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:37,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:37,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:37,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:37,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:37,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:37,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:37,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:37,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:37,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:37,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:37,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:37,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:37,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:37,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:37,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:37,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:37,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:37,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:37,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:37,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:37,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:37,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:37,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:37,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:37,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:37,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:37,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:37,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:37,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:37,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:37,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:37,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:37,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:37,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:37,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:37,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:37,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:53:37,688 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:37,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:37,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:37,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:37,690 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:37,690 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:53:37,690 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:53:37,690 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:53:37,691 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:53:37,691 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:53:37,691 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:53:37,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:37,691 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:37,692 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:53:37,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:37,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:37,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:37,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:53:37,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:53:37,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:53:37,693 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:37,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:37,693 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:53:37,694 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:37,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:53:37,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:37,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:37,694 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:53:37,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:37,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:37,695 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:53:37,696 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:53:37,696 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_fbf1837b-5170-4776-bb2c-23d98ccf5238/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 -> 34d3cbbc8b4a786ebf9108ab9ac810ac8aab3a53 [2019-11-25 08:53:37,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:37,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:37,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:37,838 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:37,838 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:37,839 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2019-11-25 08:53:37,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/data/be03f3525/77d60fb0c57247d08d028be2e87bc076/FLAGb63a04482 [2019-11-25 08:53:38,357 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:38,357 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2019-11-25 08:53:38,369 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/data/be03f3525/77d60fb0c57247d08d028be2e87bc076/FLAGb63a04482 [2019-11-25 08:53:38,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/data/be03f3525/77d60fb0c57247d08d028be2e87bc076 [2019-11-25 08:53:38,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:38,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:38,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:38,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:38,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:38,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:38,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@212da9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38, skipping insertion in model container [2019-11-25 08:53:38,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:38,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:38,460 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:38,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:38,807 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:38,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:38,901 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:38,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38 WrapperNode [2019-11-25 08:53:38,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:38,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:38,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:38,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:38,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:38,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:38,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:38,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:38,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:38,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:38,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:38,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:38,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:38,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:39,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:39,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:39,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... [2019-11-25 08:53:39,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:39,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:39,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:39,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:39,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/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 08:53:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:53:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:39,949 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:39,949 INFO L284 CfgBuilder]: Removed 166 assume(true) statements. [2019-11-25 08:53:39,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:39 BoogieIcfgContainer [2019-11-25 08:53:39,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:39,951 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:53:39,951 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:53:39,954 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:53:39,955 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:53:39,955 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:53:38" (1/3) ... [2019-11-25 08:53:39,956 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7125a7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:53:39, skipping insertion in model container [2019-11-25 08:53:39,956 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:53:39,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:38" (2/3) ... [2019-11-25 08:53:39,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7125a7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:53:39, skipping insertion in model container [2019-11-25 08:53:39,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:53:39,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:39" (3/3) ... [2019-11-25 08:53:39,960 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2019-11-25 08:53:40,008 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:53:40,009 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:53:40,009 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:53:40,009 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:40,009 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:40,010 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:53:40,010 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:40,010 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:53:40,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-25 08:53:40,076 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-25 08:53:40,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:40,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:40,084 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:53:40,084 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:40,084 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:53:40,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-25 08:53:40,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-25 08:53:40,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:40,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:40,099 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:53:40,099 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:40,109 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 3#L855true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 27#L863true main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 48#L950true assume 0 != main_~tmp~9; 98#L927true havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L811-1true [2019-11-25 08:53:40,110 INFO L796 eck$LassoCheckResult]: Loop: 6#L811-1true assume !false; 94#L525true assume test_~splverifierCounter~0 < 4; 43#L526true test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 63#L534true assume !(0 != test_~tmp~3); 65#L534-1true test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 5#L544true assume !(0 != test_~tmp___0~0); 7#L544-1true test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 41#L554true assume 0 != test_~tmp___2~0; 33#L560-1true assume !(0 != ~pumpRunning~0); 28#L593true assume !(0 != ~systemActive~0); 60#L600true havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 112#L90-1true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 31#L805true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 6#L811-1true [2019-11-25 08:53:40,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:40,115 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-25 08:53:40,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:40,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450761365] [2019-11-25 08:53:40,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:40,480 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:40,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:40,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1671709762, now seen corresponding path program 1 times [2019-11-25 08:53:40,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:40,482 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393735630] [2019-11-25 08:53:40,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:40,495 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:40,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:40,496 INFO L82 PathProgramCache]: Analyzing trace with hash 42569176, now seen corresponding path program 1 times [2019-11-25 08:53:40,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:40,497 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821588045] [2019-11-25 08:53:40,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:40,612 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 08:53:40,613 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821588045] [2019-11-25 08:53:40,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:40,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:53:40,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655370513] [2019-11-25 08:53:40,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:40,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:53:40,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:53:40,710 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 6 states. [2019-11-25 08:53:40,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:40,922 INFO L93 Difference]: Finished difference Result 270 states and 381 transitions. [2019-11-25 08:53:40,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:53:40,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 381 transitions. [2019-11-25 08:53:40,930 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 173 [2019-11-25 08:53:40,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 249 states and 360 transitions. [2019-11-25 08:53:40,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2019-11-25 08:53:40,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2019-11-25 08:53:40,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 360 transitions. [2019-11-25 08:53:40,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:53:40,942 INFO L688 BuchiCegarLoop]: Abstraction has 249 states and 360 transitions. [2019-11-25 08:53:40,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 360 transitions. [2019-11-25 08:53:40,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 150. [2019-11-25 08:53:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-25 08:53:40,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2019-11-25 08:53:40,980 INFO L711 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2019-11-25 08:53:40,981 INFO L591 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2019-11-25 08:53:40,981 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:53:40,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2019-11-25 08:53:40,986 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2019-11-25 08:53:40,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:40,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:40,987 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:53:40,987 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:40,988 INFO L794 eck$LassoCheckResult]: Stem: 480#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 408#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 398#L855 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 399#L863 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 446#L950 assume 0 != main_~tmp~9; 467#L927 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 401#L811-1 [2019-11-25 08:53:40,988 INFO L796 eck$LassoCheckResult]: Loop: 401#L811-1 assume !false; 406#L525 assume test_~splverifierCounter~0 < 4; 462#L526 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 463#L534 assume !(0 != test_~tmp~3); 421#L534-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 403#L544 assume !(0 != test_~tmp___0~0); 404#L544-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 407#L554 assume 0 != test_~tmp___2~0; 453#L560-1 assume !(0 != ~pumpRunning~0); 447#L593 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 439#L651 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret49, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 441#L625-1 assume !(0 != ~pumpRunning~0); 410#L600 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 475#L90-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 454#L805 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 401#L811-1 [2019-11-25 08:53:40,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:40,988 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-25 08:53:40,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:40,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927511290] [2019-11-25 08:53:40,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,129 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:41,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:41,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1950294320, now seen corresponding path program 1 times [2019-11-25 08:53:41,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:41,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614244836] [2019-11-25 08:53:41,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,144 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:41,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:41,146 INFO L82 PathProgramCache]: Analyzing trace with hash 104912074, now seen corresponding path program 1 times [2019-11-25 08:53:41,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:41,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498231105] [2019-11-25 08:53:41,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:41,227 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 08:53:41,227 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498231105] [2019-11-25 08:53:41,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:41,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:53:41,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422310026] [2019-11-25 08:53:41,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:41,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:53:41,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:41,299 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand 5 states. [2019-11-25 08:53:41,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:41,486 INFO L93 Difference]: Finished difference Result 511 states and 749 transitions. [2019-11-25 08:53:41,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:53:41,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 511 states and 749 transitions. [2019-11-25 08:53:41,492 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 367 [2019-11-25 08:53:41,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 511 states to 511 states and 749 transitions. [2019-11-25 08:53:41,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 511 [2019-11-25 08:53:41,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 511 [2019-11-25 08:53:41,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 511 states and 749 transitions. [2019-11-25 08:53:41,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:53:41,510 INFO L688 BuchiCegarLoop]: Abstraction has 511 states and 749 transitions. [2019-11-25 08:53:41,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states and 749 transitions. [2019-11-25 08:53:41,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 294. [2019-11-25 08:53:41,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-11-25 08:53:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 418 transitions. [2019-11-25 08:53:41,543 INFO L711 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2019-11-25 08:53:41,543 INFO L591 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2019-11-25 08:53:41,543 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:53:41,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 294 states and 418 transitions. [2019-11-25 08:53:41,548 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 208 [2019-11-25 08:53:41,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:41,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:41,550 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:53:41,550 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:41,550 INFO L794 eck$LassoCheckResult]: Stem: 1177#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1092#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 1077#L855 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1078#L863 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 1124#L950 assume 0 != main_~tmp~9; 1157#L927 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1080#L811-1 [2019-11-25 08:53:41,550 INFO L796 eck$LassoCheckResult]: Loop: 1080#L811-1 assume !false; 1085#L525 assume test_~splverifierCounter~0 < 4; 1149#L526 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 1150#L534 assume !(0 != test_~tmp~3); 1101#L534-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 1082#L544 assume !(0 != test_~tmp___0~0); 1083#L544-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 1305#L554 assume 0 != test_~tmp___2~0; 1304#L560-1 assume !(0 != ~pumpRunning~0); 1272#L593 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1271#L651 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret49, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1161#L625-1 assume !(0 != ~pumpRunning~0); 1089#L600 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1168#L90-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 1132#L805 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1133#L122 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 1079#L811 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1080#L811-1 [2019-11-25 08:53:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:41,551 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-25 08:53:41,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:41,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524154771] [2019-11-25 08:53:41,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,632 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:41,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:41,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1627108098, now seen corresponding path program 1 times [2019-11-25 08:53:41,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:41,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039025249] [2019-11-25 08:53:41,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,645 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:41,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:41,646 INFO L82 PathProgramCache]: Analyzing trace with hash 2036262940, now seen corresponding path program 1 times [2019-11-25 08:53:41,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:41,646 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433456388] [2019-11-25 08:53:41,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:41,737 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:02,104 WARN L192 SmtUtils]: Spent 20.26 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-25 08:54:15,144 WARN L192 SmtUtils]: Spent 13.04 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-25 08:54:15,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:54:15 BoogieIcfgContainer [2019-11-25 08:54:15,214 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:54:15,214 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:15,214 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:15,214 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:15,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:39" (3/4) ... [2019-11-25 08:54:15,217 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:54:15,264 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fbf1837b-5170-4776-bb2c-23d98ccf5238/bin/uautomizer/witness.graphml [2019-11-25 08:54:15,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:15,266 INFO L168 Benchmark]: Toolchain (without parser) took 36879.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -104.6 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:15,266 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:15,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:15,268 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.39 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. [2019-11-25 08:54:15,268 INFO L168 Benchmark]: Boogie Preprocessor took 73.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:15,268 INFO L168 Benchmark]: RCFGBuilder took 905.38 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:15,269 INFO L168 Benchmark]: BuchiAutomizer took 35262.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 239.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:15,270 INFO L168 Benchmark]: Witness Printer took 50.61 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: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:15,272 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 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 514.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.39 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 73.73 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 905.38 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35262.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 239.6 MB. Max. memory is 11.5 GB. * Witness Printer took 50.61 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: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 294 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 34.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 316 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 294 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 365 SDtfs, 1154 SDslu, 1360 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 524]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3263} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=3272, NULL=3263, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3042f831=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e6d7eaf=59, NULL=3265, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@107e0919=0, NULL=0, NULL=3273, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a347d7f=0, NULL=0, NULL=3285, NULL=3283, methaneLevelCritical=0, NULL=3281, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@152711ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20648267=0, tmp=0, NULL=3269, NULL=0, NULL=3271, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38e50b03=0, NULL=3275, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b62a55f=0, tmp___1=0, NULL=3266, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bc6ed30=0, NULL=3284, NULL=3270, cleanupTimeShifts=4, NULL=3277, NULL=3279, tmp=0, tmp___0=1, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=3274, NULL=0, tmp___0=0, NULL=3287, NULL=0, NULL=0, retValue_acc=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, NULL=3276, NULL=0, NULL=3267, tmp___2=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d432ee9=0, NULL=3282, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=3280, tmp___1=0, head=0, NULL=0, tmp=0, tmp=1, NULL=3288, NULL=0, NULL=0, NULL=3264, NULL=0, NULL=3278, NULL=3286, NULL=3268, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L941] int retValue_acc ; [L942] int tmp ; [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L948] tmp = valid_product() [L950] COND TRUE \read(tmp) [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] splverifierCounter = 0 Loop: [L524] COND TRUE 1 [L526] COND TRUE splverifierCounter < 4 [L532] tmp = __VERIFIER_nondet_int() [L534] COND FALSE !(\read(tmp)) [L542] tmp___0 = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp___0)) [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND TRUE \read(tmp___2) [L593] COND FALSE !(\read(pumpRunning)) [L600] COND TRUE \read(systemActive) [L648] int tmp ; [L651] COND FALSE !(\read(pumpRunning)) [L622] int tmp ; [L625] COND FALSE !(\read(pumpRunning)) [L797] int tmp ; [L798] int tmp___0 ; [L799] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L809] tmp___0 = getWaterLevel() [L811] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...