./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/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 bf8906b0b730189db64c3dc46780e4460503fe36 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 03:59:14,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:59:14,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:59:14,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:59:14,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:59:14,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:59:14,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:59:14,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:59:14,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:59:14,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:59:14,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:59:14,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:59:14,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:59:14,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:59:14,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:59:14,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:59:14,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:59:14,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:59:14,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:59:14,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:59:14,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:59:14,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:59:14,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:59:14,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:59:14,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:59:14,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:59:14,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:59:14,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:59:14,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:59:14,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:59:14,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:59:14,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:59:14,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:59:14,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:59:14,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:59:14,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:59:14,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:59:14,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:59:14,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:59:14,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:59:14,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:59:14,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 03:59:15,010 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:59:15,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:59:15,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:59:15,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:59:15,012 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:59:15,012 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 03:59:15,012 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 03:59:15,012 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 03:59:15,012 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 03:59:15,012 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 03:59:15,013 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 03:59:15,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:59:15,013 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:59:15,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:59:15,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:59:15,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:59:15,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:59:15,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 03:59:15,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 03:59:15,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 03:59:15,014 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:59:15,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:59:15,015 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 03:59:15,015 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:59:15,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 03:59:15,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:59:15,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:59:15,016 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 03:59:15,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:59:15,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:59:15,016 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 03:59:15,017 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 03:59:15,017 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_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/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 -> bf8906b0b730189db64c3dc46780e4460503fe36 [2019-11-20 03:59:15,151 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:59:15,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:59:15,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:59:15,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:59:15,169 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:59:15,171 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2019-11-20 03:59:15,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/data/2d79d11a2/42c28c8efc3747a6a1d0806bb1ba4e48/FLAGdd9cfe3cf [2019-11-20 03:59:15,704 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:59:15,707 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2019-11-20 03:59:15,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/data/2d79d11a2/42c28c8efc3747a6a1d0806bb1ba4e48/FLAGdd9cfe3cf [2019-11-20 03:59:16,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/data/2d79d11a2/42c28c8efc3747a6a1d0806bb1ba4e48 [2019-11-20 03:59:16,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:59:16,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:59:16,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:59:16,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:59:16,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:59:16,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d14ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16, skipping insertion in model container [2019-11-20 03:59:16,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,086 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:59:16,140 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:59:16,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:59:16,557 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:59:16,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:59:16,706 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:59:16,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16 WrapperNode [2019-11-20 03:59:16,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:59:16,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:59:16,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:59:16,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:59:16,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:59:16,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:59:16,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:59:16,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:59:16,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... [2019-11-20 03:59:16,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:59:16,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:59:16,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:59:16,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:59:16,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/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 [2019-11-20 03:59:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:59:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 03:59:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:59:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:59:17,967 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:59:17,967 INFO L285 CfgBuilder]: Removed 282 assume(true) statements. [2019-11-20 03:59:17,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:59:17 BoogieIcfgContainer [2019-11-20 03:59:17,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:59:17,969 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 03:59:17,970 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 03:59:17,973 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 03:59:17,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:59:17,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 03:59:16" (1/3) ... [2019-11-20 03:59:17,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aed9feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:59:17, skipping insertion in model container [2019-11-20 03:59:17,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:59:17,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:59:16" (2/3) ... [2019-11-20 03:59:17,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aed9feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:59:17, skipping insertion in model container [2019-11-20 03:59:17,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:59:17,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:59:17" (3/3) ... [2019-11-20 03:59:17,978 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2019-11-20 03:59:18,034 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 03:59:18,034 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 03:59:18,034 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 03:59:18,034 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:59:18,034 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:59:18,034 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 03:59:18,035 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:59:18,036 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 03:59:18,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2019-11-20 03:59:18,112 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2019-11-20 03:59:18,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:59:18,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:59:18,120 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:59:18,120 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:59:18,120 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 03:59:18,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2019-11-20 03:59:18,130 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2019-11-20 03:59:18,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:59:18,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:59:18,132 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:59:18,132 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:59:18,137 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 22#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 157#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 151#L82true main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 99#L975true assume 0 != main_~tmp~10; 145#L952true havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 31#L508-1true [2019-11-20 03:59:18,138 INFO L796 eck$LassoCheckResult]: Loop: 31#L508-1true assume !false; 100#L102true assume test_~splverifierCounter~0 < 4; 43#L103true test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; 70#L111true assume !(0 != test_~tmp~0); 93#L111-1true test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; 138#L121true assume !(0 != test_~tmp___0~0); 133#L121-1true test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; 34#L131true assume 0 != test_~tmp___2~0; 148#L137-2true assume !(0 != ~pumpRunning~0); 165#L173true assume !(0 != ~systemActive~0); 54#L180true havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 92#L433-1true __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 78#L502true assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 31#L508-1true [2019-11-20 03:59:18,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:18,143 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-20 03:59:18,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:18,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655674033] [2019-11-20 03:59:18,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:18,421 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:59:18,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:18,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1676481291, now seen corresponding path program 1 times [2019-11-20 03:59:18,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:18,423 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689269588] [2019-11-20 03:59:18,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:18,437 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:59:18,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:18,438 INFO L82 PathProgramCache]: Analyzing trace with hash 37797647, now seen corresponding path program 1 times [2019-11-20 03:59:18,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:18,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325566345] [2019-11-20 03:59:18,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:59:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:59:18,572 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325566345] [2019-11-20 03:59:18,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:59:18,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:59:18,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813297525] [2019-11-20 03:59:18,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:59:18,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 03:59:18,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:59:18,705 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 6 states. [2019-11-20 03:59:18,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:59:18,866 INFO L93 Difference]: Finished difference Result 192 states and 283 transitions. [2019-11-20 03:59:18,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:59:18,869 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 192 states and 283 transitions. [2019-11-20 03:59:18,875 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-11-20 03:59:18,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 192 states to 185 states and 276 transitions. [2019-11-20 03:59:18,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 185 [2019-11-20 03:59:18,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 185 [2019-11-20 03:59:18,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 185 states and 276 transitions. [2019-11-20 03:59:18,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:59:18,887 INFO L688 BuchiCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-11-20 03:59:18,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states and 276 transitions. [2019-11-20 03:59:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2019-11-20 03:59:18,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-11-20 03:59:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2019-11-20 03:59:18,922 INFO L711 BuchiCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-11-20 03:59:18,922 INFO L591 BuchiCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-11-20 03:59:18,922 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 03:59:18,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 185 states and 276 transitions. [2019-11-20 03:59:18,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-11-20 03:59:18,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:59:18,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:59:18,927 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:59:18,927 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:59:18,928 INFO L794 eck$LassoCheckResult]: Stem: 550#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 440#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 441#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 570#L82 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 535#L975 assume 0 != main_~tmp~10; 536#L952 havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 451#L508-1 [2019-11-20 03:59:18,928 INFO L796 eck$LassoCheckResult]: Loop: 451#L508-1 assume !false; 458#L102 assume test_~splverifierCounter~0 < 4; 471#L103 test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; 472#L111 assume !(0 != test_~tmp~0); 507#L111-1 test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; 533#L121 assume !(0 != test_~tmp___0~0); 403#L121-1 test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; 461#L131 assume 0 != test_~tmp___2~0; 462#L137-2 assume !(0 != ~pumpRunning~0); 568#L173 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 524#L257 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret6, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 526#L231-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 490#L205-3 assume !(0 == ~pumpRunning~0); 482#L180 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 483#L433-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 514#L502 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 451#L508-1 [2019-11-20 03:59:18,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:18,928 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-20 03:59:18,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:18,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100816607] [2019-11-20 03:59:18,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:19,035 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:59:19,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:19,035 INFO L82 PathProgramCache]: Analyzing trace with hash -270276503, now seen corresponding path program 1 times [2019-11-20 03:59:19,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:19,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682140311] [2019-11-20 03:59:19,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:59:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:59:19,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682140311] [2019-11-20 03:59:19,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:59:19,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:59:19,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320234399] [2019-11-20 03:59:19,069 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 03:59:19,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:59:19,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:59:19,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:59:19,070 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. cyclomatic complexity: 93 Second operand 3 states. [2019-11-20 03:59:19,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:59:19,247 INFO L93 Difference]: Finished difference Result 196 states and 273 transitions. [2019-11-20 03:59:19,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:59:19,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 273 transitions. [2019-11-20 03:59:19,251 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 134 [2019-11-20 03:59:19,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 196 states and 273 transitions. [2019-11-20 03:59:19,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 196 [2019-11-20 03:59:19,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2019-11-20 03:59:19,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 273 transitions. [2019-11-20 03:59:19,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:59:19,256 INFO L688 BuchiCegarLoop]: Abstraction has 196 states and 273 transitions. [2019-11-20 03:59:19,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 273 transitions. [2019-11-20 03:59:19,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2019-11-20 03:59:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-11-20 03:59:19,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 273 transitions. [2019-11-20 03:59:19,273 INFO L711 BuchiCegarLoop]: Abstraction has 196 states and 273 transitions. [2019-11-20 03:59:19,273 INFO L591 BuchiCegarLoop]: Abstraction has 196 states and 273 transitions. [2019-11-20 03:59:19,273 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 03:59:19,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 273 transitions. [2019-11-20 03:59:19,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 134 [2019-11-20 03:59:19,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:59:19,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:59:19,276 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:59:19,277 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:59:19,277 INFO L794 eck$LassoCheckResult]: Stem: 913#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 821#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 822#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 933#L82 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 899#L975 assume 0 != main_~tmp~10; 900#L952 havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 828#L508-1 [2019-11-20 03:59:19,277 INFO L796 eck$LassoCheckResult]: Loop: 828#L508-1 assume !false; 834#L102 assume test_~splverifierCounter~0 < 4; 846#L103 test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; 847#L111 assume !(0 != test_~tmp~0); 875#L111-1 test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; 897#L121 assume !(0 != test_~tmp___0~0); 790#L121-1 test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; 836#L131 assume 0 != test_~tmp___2~0; 837#L137-2 assume !(0 != ~pumpRunning~0); 928#L173 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 889#L257 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret6, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 890#L231-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 862#L205-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 863#L473-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 934#L478-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 823#L359-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 824#L359-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 816#L365-3 processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; 817#L209-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 856#L180 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 857#L433-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 880#L502 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 828#L508-1 [2019-11-20 03:59:19,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:19,278 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-20 03:59:19,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:19,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518264014] [2019-11-20 03:59:19,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:19,373 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:59:19,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:19,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1151634357, now seen corresponding path program 1 times [2019-11-20 03:59:19,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:19,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89788438] [2019-11-20 03:59:19,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:19,389 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:59:19,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:19,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1890027813, now seen corresponding path program 1 times [2019-11-20 03:59:19,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:19,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089962660] [2019-11-20 03:59:19,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:59:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:59:19,520 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089962660] [2019-11-20 03:59:19,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:59:19,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:59:19,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378957058] [2019-11-20 03:59:19,665 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-20 03:59:19,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:59:19,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:59:19,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:59:19,731 INFO L87 Difference]: Start difference. First operand 196 states and 273 transitions. cyclomatic complexity: 79 Second operand 5 states. [2019-11-20 03:59:19,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:59:19,905 INFO L93 Difference]: Finished difference Result 656 states and 915 transitions. [2019-11-20 03:59:19,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 03:59:19,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 656 states and 915 transitions. [2019-11-20 03:59:19,913 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 472 [2019-11-20 03:59:19,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 656 states to 656 states and 915 transitions. [2019-11-20 03:59:19,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 656 [2019-11-20 03:59:19,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 656 [2019-11-20 03:59:19,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 656 states and 915 transitions. [2019-11-20 03:59:19,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:59:19,924 INFO L688 BuchiCegarLoop]: Abstraction has 656 states and 915 transitions. [2019-11-20 03:59:19,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states and 915 transitions. [2019-11-20 03:59:19,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 386. [2019-11-20 03:59:19,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2019-11-20 03:59:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 532 transitions. [2019-11-20 03:59:19,944 INFO L711 BuchiCegarLoop]: Abstraction has 386 states and 532 transitions. [2019-11-20 03:59:19,944 INFO L591 BuchiCegarLoop]: Abstraction has 386 states and 532 transitions. [2019-11-20 03:59:19,944 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 03:59:19,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 386 states and 532 transitions. [2019-11-20 03:59:19,947 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 268 [2019-11-20 03:59:19,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:59:19,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:59:19,948 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:59:19,948 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:59:19,948 INFO L794 eck$LassoCheckResult]: Stem: 1792#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 1691#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1692#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1818#L82 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 1776#L975 assume 0 != main_~tmp~10; 1777#L952 havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1812#L508-1 [2019-11-20 03:59:19,949 INFO L796 eck$LassoCheckResult]: Loop: 1812#L508-1 assume !false; 1943#L102 assume test_~splverifierCounter~0 < 4; 1944#L103 test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; 2044#L111 assume !(0 != test_~tmp~0); 2042#L111-1 test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; 2040#L121 assume !(0 != test_~tmp___0~0); 2039#L121-1 test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; 2036#L131 assume 0 != test_~tmp___2~0; 2033#L137-2 assume !(0 != ~pumpRunning~0); 2015#L173 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2032#L257 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret6, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 1946#L231-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 2031#L205-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2021#L473-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2019#L478-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 2016#L359-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 2013#L359-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 2012#L365-3 processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; 1806#L209-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1763#L180 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1772#L433-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 1773#L502 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1795#L465 __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 1796#L508 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 1812#L508-1 [2019-11-20 03:59:19,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:19,949 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-20 03:59:19,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:19,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134169479] [2019-11-20 03:59:19,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:20,052 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:59:20,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:20,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1380933977, now seen corresponding path program 1 times [2019-11-20 03:59:20,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:20,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714122826] [2019-11-20 03:59:20,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:20,073 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:59:20,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:59:20,074 INFO L82 PathProgramCache]: Analyzing trace with hash 454449229, now seen corresponding path program 1 times [2019-11-20 03:59:20,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:59:20,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671821592] [2019-11-20 03:59:20,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:59:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:59:20,187 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:59:20,363 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-20 03:59:41,263 WARN L191 SmtUtils]: Spent 20.82 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-20 03:59:53,801 WARN L191 SmtUtils]: Spent 12.54 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-20 03:59:53,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 03:59:53 BoogieIcfgContainer [2019-11-20 03:59:53,894 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 03:59:53,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:59:53,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:59:53,895 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:59:53,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:59:17" (3/4) ... [2019-11-20 03:59:53,898 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 03:59:53,956 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fa6d45c2-40b4-4fc2-8b3b-3d3820db463d/bin/uautomizer/witness.graphml [2019-11-20 03:59:53,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:59:53,958 INFO L168 Benchmark]: Toolchain (without parser) took 37895.07 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 308.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -207.5 MB). Peak memory consumption was 100.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:59:53,958 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:59:53,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-20 03:59:53,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.95 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. [2019-11-20 03:59:53,960 INFO L168 Benchmark]: Boogie Preprocessor took 82.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:59:53,960 INFO L168 Benchmark]: RCFGBuilder took 1053.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.2 MB). Peak memory consumption was 83.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:59:53,960 INFO L168 Benchmark]: BuchiAutomizer took 35924.61 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -139.5 MB). Peak memory consumption was 388.3 MB. Max. memory is 11.5 GB. [2019-11-20 03:59:53,961 INFO L168 Benchmark]: Witness Printer took 62.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:59:53,967 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 640.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 125.95 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. * Boogie Preprocessor took 82.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1053.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.2 MB). Peak memory consumption was 83.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35924.61 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -139.5 MB). Peak memory consumption was 388.3 MB. Max. memory is 11.5 GB. * Witness Printer took 62.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 386 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 35.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 270 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 386 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 815 SDtfs, 1862 SDslu, 1080 SDs, 0 SdLazy, 121 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 101]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4363} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39704d16=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31fd505e=0, NULL=12415, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62363f88=0, NULL=0, NULL=4363, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41f0b1a1=0, NULL=12935, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52045eb6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eaf7f4f=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34248e80=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4689e572=0, methaneLevelCritical=0, retValue_acc=0, NULL=0, NULL=12930, NULL=0, tmp___1=0, NULL=12932, NULL=12412, cleanupTimeShifts=4, tmp=0, NULL=12928, tmp=1, tmp=0, waterLevel=1, NULL=0, NULL=12411, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dc5e168=0, tmp___0=0, NULL=12414, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=12936, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@277d0a81=0, retValue_acc=1, NULL=12933, NULL=12934, tmp=0, head=0, NULL=0, NULL=12929, NULL=12926, NULL=12938, NULL=0, NULL=0, NULL=12413, NULL=12939, tmp=0, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b9bfa10=0, NULL=12931, tmp=0, NULL=12937, tmp___0=1, NULL=0, systemActive=1, NULL=12418, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=12927, \result=0, NULL=0, NULL=0, retValue_acc=0, NULL=21265, \result=0, NULL=0, NULL=0, NULL=12419, NULL=12416, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4387d300=0, retValue_acc=1, tmp___2=57, splverifierCounter=0, NULL=0, \result=0, NULL=12417, tmp___1=0, NULL=0, NULL=0, NULL=21264, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L165] int pumpRunning = 0; [L166] int systemActive = 1; [L390] int waterLevel = 1; [L391] int methaneLevelCritical = 0; [L696] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L893] int cleanupTimeShifts = 4; [L966] int retValue_acc ; [L967] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L973] tmp = valid_product() [L975] COND TRUE \read(tmp) [L92] int splverifierCounter ; [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L96] int tmp___2 ; [L99] splverifierCounter = 0 Loop: [L101] COND TRUE 1 [L103] COND TRUE splverifierCounter < 4 [L109] tmp = __VERIFIER_nondet_int() [L111] COND FALSE !(\read(tmp)) [L119] tmp___0 = __VERIFIER_nondet_int() [L121] COND FALSE !(\read(tmp___0)) [L129] tmp___2 = __VERIFIER_nondet_int() [L131] COND TRUE \read(tmp___2) [L173] COND FALSE !(\read(pumpRunning)) [L180] COND TRUE \read(systemActive) [L254] int tmp ; [L257] COND FALSE !(\read(pumpRunning)) [L228] int tmp ; [L231] COND FALSE !(\read(pumpRunning)) [L202] int tmp ; [L205] COND TRUE ! pumpRunning [L351] int retValue_acc ; [L352] int tmp ; [L353] int tmp___0 ; [L470] int retValue_acc ; [L473] COND TRUE waterLevel < 2 [L474] retValue_acc = 1 [L475] return (retValue_acc); [L357] tmp = isHighWaterSensorDry() [L359] COND TRUE \read(tmp) [L360] tmp___0 = 0 [L364] retValue_acc = tmp___0 [L365] return (retValue_acc); [L207] tmp = isHighWaterLevel() [L209] COND FALSE !(\read(tmp)) [L494] int tmp ; [L495] int tmp___0 ; [L496] int tmp___1 ; [L429] int retValue_acc ; [L432] retValue_acc = methaneLevelCritical [L433] return (retValue_acc); [L500] tmp = isMethaneLevelCritical() [L502] COND FALSE !(\read(tmp)) [L461] int retValue_acc ; [L464] retValue_acc = waterLevel [L465] return (retValue_acc); [L506] tmp___0 = getWaterLevel() [L508] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...