./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/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 c228d9f74ddd17cda7010ca670107d7221f92470 .................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 18:04:10,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:04:10,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:04:10,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:04:10,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:04:10,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:04:10,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:04:10,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:04:10,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:04:10,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:04:10,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:04:10,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:04:10,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:04:10,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:04:10,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:04:10,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:04:10,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:04:10,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:04:10,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:04:10,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:04:10,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:04:10,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:04:10,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:04:10,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:04:10,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:04:10,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:04:10,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:04:10,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:04:10,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:04:10,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:04:10,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:04:10,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:04:10,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:04:10,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:04:10,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:04:10,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:04:10,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:04:10,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:04:10,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:04:10,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:04:10,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:04:10,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:04:10,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:04:10,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:04:10,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:04:10,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:04:10,969 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:04:10,969 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:04:10,970 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:04:10,970 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:04:10,970 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:04:10,970 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:04:10,970 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:04:10,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:04:10,971 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:04:10,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:04:10,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:04:10,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:04:10,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:04:10,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:04:10,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:04:10,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:04:10,972 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:04:10,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:04:10,973 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:04:10,973 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:04:10,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:04:10,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:04:10,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:04:10,973 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:04:10,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:04:10,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:04:10,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:04:10,974 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:04:10,975 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:04:10,975 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_22fa2f15-619a-4eb1-b65b-27d85a045a4f/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 -> c228d9f74ddd17cda7010ca670107d7221f92470 [2019-12-07 18:04:11,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:04:11,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:04:11,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:04:11,091 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:04:11,091 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:04:11,092 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2019-12-07 18:04:11,129 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/data/9fca81db7/3652daec56a24005b96513e5f7ca57d2/FLAG05ec86c5c [2019-12-07 18:04:11,595 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:04:11,596 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2019-12-07 18:04:11,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/data/9fca81db7/3652daec56a24005b96513e5f7ca57d2/FLAG05ec86c5c [2019-12-07 18:04:11,614 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/data/9fca81db7/3652daec56a24005b96513e5f7ca57d2 [2019-12-07 18:04:11,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:04:11,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:04:11,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:04:11,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:04:11,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:04:11,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:11,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed7335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11, skipping insertion in model container [2019-12-07 18:04:11,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:11,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:04:11,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:04:11,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:04:11,867 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:04:11,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:04:11,932 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:04:11,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11 WrapperNode [2019-12-07 18:04:11,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:04:11,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:04:11,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:04:11,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:04:11,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:11,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:11,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:04:11,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:04:11,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:04:11,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:04:11,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:11,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:11,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:11,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:11,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:12,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:12,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... [2019-12-07 18:04:12,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:04:12,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:04:12,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:04:12,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:04:12,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/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 [2019-12-07 18:04:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:04:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:04:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:04:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:04:12,492 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:04:12,493 INFO L287 CfgBuilder]: Removed 160 assume(true) statements. [2019-12-07 18:04:12,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:04:12 BoogieIcfgContainer [2019-12-07 18:04:12,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:04:12,494 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:04:12,494 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:04:12,496 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:04:12,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:04:12,497 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:04:11" (1/3) ... [2019-12-07 18:04:12,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fabdc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:04:12, skipping insertion in model container [2019-12-07 18:04:12,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:04:12,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:11" (2/3) ... [2019-12-07 18:04:12,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fabdc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:04:12, skipping insertion in model container [2019-12-07 18:04:12,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:04:12,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:04:12" (3/3) ... [2019-12-07 18:04:12,500 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2019-12-07 18:04:12,530 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:04:12,530 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:04:12,530 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:04:12,530 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:04:12,530 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:04:12,530 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:04:12,530 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:04:12,530 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:04:12,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-12-07 18:04:12,562 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-12-07 18:04:12,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:04:12,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:04:12,567 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:04:12,567 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:04:12,568 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:04:12,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-12-07 18:04:12,572 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-12-07 18:04:12,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:04:12,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:04:12,573 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:04:12,573 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:04:12,577 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 16#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 19#L65true 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; 13#L73true main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 39#L904true assume 0 != main_~tmp~7; 77#L881true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, 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; 40#L926-1true [2019-12-07 18:04:12,577 INFO L796 eck$LassoCheckResult]: Loop: 40#L926-1true assume !false; 73#L460true assume test_~splverifierCounter~0 < 4; 26#L461true test_~tmp~3 := test_#t~nondet36;havoc test_#t~nondet36; 59#L469true assume !(0 != test_~tmp~3); 34#L469-1true test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 82#L479true assume !(0 != test_~tmp___0~0); 75#L479-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 105#L489true assume 0 != test_~tmp___2~0; 92#L495-1true assume !(0 != ~pumpRunning~0); 61#L532true assume !(0 != ~systemActive~0); 97#L539true havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 101#L803true __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 37#L926true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 40#L926-1true [2019-12-07 18:04:12,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:12,581 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 18:04:12,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:12,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016139415] [2019-12-07 18:04:12,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:12,783 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:04:12,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:12,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1671401909, now seen corresponding path program 1 times [2019-12-07 18:04:12,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:12,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023253475] [2019-12-07 18:04:12,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:12,794 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:04:12,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:12,795 INFO L82 PathProgramCache]: Analyzing trace with hash 42877029, now seen corresponding path program 1 times [2019-12-07 18:04:12,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:12,796 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382314509] [2019-12-07 18:04:12,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:04:12,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:04:12,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382314509] [2019-12-07 18:04:12,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:04:12,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:04:12,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094662717] [2019-12-07 18:04:12,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:04:12,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:04:12,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:04:12,942 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 6 states. [2019-12-07 18:04:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:04:13,070 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2019-12-07 18:04:13,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:04:13,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 378 transitions. [2019-12-07 18:04:13,079 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 169 [2019-12-07 18:04:13,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 243 states and 357 transitions. [2019-12-07 18:04:13,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2019-12-07 18:04:13,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2019-12-07 18:04:13,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 357 transitions. [2019-12-07 18:04:13,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:04:13,091 INFO L688 BuchiCegarLoop]: Abstraction has 243 states and 357 transitions. [2019-12-07 18:04:13,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 357 transitions. [2019-12-07 18:04:13,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 144. [2019-12-07 18:04:13,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-12-07 18:04:13,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2019-12-07 18:04:13,121 INFO L711 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-12-07 18:04:13,122 INFO L591 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-12-07 18:04:13,122 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:04:13,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 210 transitions. [2019-12-07 18:04:13,124 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2019-12-07 18:04:13,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:04:13,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:04:13,125 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:04:13,125 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:04:13,125 INFO L794 eck$LassoCheckResult]: Stem: 483#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 417#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 418#L65 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; 411#L73 main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 412#L904 assume 0 != main_~tmp~7; 445#L881 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, 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; 444#L926-1 [2019-12-07 18:04:13,125 INFO L796 eck$LassoCheckResult]: Loop: 444#L926-1 assume !false; 446#L460 assume test_~splverifierCounter~0 < 4; 429#L461 test_~tmp~3 := test_#t~nondet36;havoc test_#t~nondet36; 430#L469 assume !(0 != test_~tmp~3); 438#L469-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 439#L479 assume !(0 != test_~tmp___0~0); 467#L479-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 480#L489 assume 0 != test_~tmp___2~0; 491#L495-1 assume !(0 != ~pumpRunning~0); 470#L532 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 454#L590 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret40, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 456#L564-1 assume !(0 == ~pumpRunning~0); 459#L539 havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 493#L803 __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 443#L926 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 444#L926-1 [2019-12-07 18:04:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:13,126 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 18:04:13,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:13,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822639464] [2019-12-07 18:04:13,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:13,188 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:04:13,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:13,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1955219778, now seen corresponding path program 1 times [2019-12-07 18:04:13,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:13,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923101145] [2019-12-07 18:04:13,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:04:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:04:13,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923101145] [2019-12-07 18:04:13,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:04:13,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:04:13,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765162406] [2019-12-07 18:04:13,198 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:04:13,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:04:13,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:04:13,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:04:13,199 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. cyclomatic complexity: 69 Second operand 3 states. [2019-12-07 18:04:13,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:04:13,261 INFO L93 Difference]: Finished difference Result 183 states and 250 transitions. [2019-12-07 18:04:13,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:04:13,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 250 transitions. [2019-12-07 18:04:13,264 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2019-12-07 18:04:13,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 250 transitions. [2019-12-07 18:04:13,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2019-12-07 18:04:13,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2019-12-07 18:04:13,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 250 transitions. [2019-12-07 18:04:13,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:04:13,267 INFO L688 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2019-12-07 18:04:13,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 250 transitions. [2019-12-07 18:04:13,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-12-07 18:04:13,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-12-07 18:04:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 250 transitions. [2019-12-07 18:04:13,275 INFO L711 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2019-12-07 18:04:13,275 INFO L591 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2019-12-07 18:04:13,275 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:04:13,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 250 transitions. [2019-12-07 18:04:13,276 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2019-12-07 18:04:13,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:04:13,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:04:13,277 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:04:13,277 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] [2019-12-07 18:04:13,277 INFO L794 eck$LassoCheckResult]: Stem: 822#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 750#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 751#L65 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; 744#L73 main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 745#L904 assume 0 != main_~tmp~7; 780#L881 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, 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; 778#L926-1 [2019-12-07 18:04:13,278 INFO L796 eck$LassoCheckResult]: Loop: 778#L926-1 assume !false; 781#L460 assume test_~splverifierCounter~0 < 4; 816#L461 test_~tmp~3 := test_#t~nondet36;havoc test_#t~nondet36; 892#L469 assume !(0 != test_~tmp~3); 890#L469-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 888#L479 assume !(0 != test_~tmp___0~0); 885#L479-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 841#L489 assume 0 != test_~tmp___2~0; 831#L495-1 assume !(0 != ~pumpRunning~0); 804#L532 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 789#L590 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret40, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 790#L564-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 746#L811-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 747#L816-1 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 784#L692-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 785#L692-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 725#L698-1 processEnvironment__wrappee__highWaterSensor_#t~ret40 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret40;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40; 726#L568-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 794#L539 havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 893#L803 __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 777#L926 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 778#L926-1 [2019-12-07 18:04:13,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:13,278 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 18:04:13,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:13,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100932533] [2019-12-07 18:04:13,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:13,329 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:04:13,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:13,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1592970094, now seen corresponding path program 1 times [2019-12-07 18:04:13,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:13,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837302584] [2019-12-07 18:04:13,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:13,340 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:04:13,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:13,341 INFO L82 PathProgramCache]: Analyzing trace with hash 2049041288, now seen corresponding path program 1 times [2019-12-07 18:04:13,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:13,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989682212] [2019-12-07 18:04:13,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:04:13,393 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:04:37,952 WARN L192 SmtUtils]: Spent 24.44 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 18:04:50,838 WARN L192 SmtUtils]: Spent 12.88 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 18:04:50,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:04:50 BoogieIcfgContainer [2019-12-07 18:04:50,907 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:04:50,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:04:50,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:04:50,908 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:04:50,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:04:12" (3/4) ... [2019-12-07 18:04:50,910 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 18:04:50,953 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_22fa2f15-619a-4eb1-b65b-27d85a045a4f/bin/uautomizer/witness.graphml [2019-12-07 18:04:50,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:04:50,954 INFO L168 Benchmark]: Toolchain (without parser) took 39337.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 943.6 MB in the beginning and 1.0 GB in the end (delta: -64.0 MB). Peak memory consumption was 97.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:04:50,955 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:04:50,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:04:50,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:04:50,956 INFO L168 Benchmark]: Boogie Preprocessor took 29.38 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:04:50,956 INFO L168 Benchmark]: RCFGBuilder took 485.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:04:50,957 INFO L168 Benchmark]: BuchiAutomizer took 38412.93 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.8 MB). Peak memory consumption was 229.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:04:50,957 INFO L168 Benchmark]: Witness Printer took 45.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:04:50,959 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.38 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 485.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38412.93 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.8 MB). Peak memory consumption was 229.7 MB. Max. memory is 11.5 GB. * Witness Printer took 45.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 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 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 38.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 303 SDtfs, 706 SDslu, 752 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 459]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9214} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=9214, NULL=10803, NULL=0, NULL=0, NULL=10787, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bba4cae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43e24325=0, NULL=10796, methaneLevelCritical=0, tmp___0=0, tmp=0, NULL=0, NULL=0, NULL=10794, NULL=0, retValue_acc=0, tmp___1=0, NULL=10806, NULL=10798, NULL=10812, NULL=10807, tmp=0, cleanupTimeShifts=4, NULL=10808, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61d8b605=0, NULL=10792, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dc5327f=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7640eb80=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a8c28bf=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55fa87be=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=10790, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1159a27b=0, NULL=0, NULL=0, NULL=10810, \result=0, NULL=10793, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=10799, NULL=10788, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@672a32d4=0, tmp=1, NULL=0, \result=1, NULL=10791, NULL=10811, NULL=10809, NULL=10789, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e6b225=0, retValue_acc=1, retValue_acc=1, tmp=1, tmp___2=65, NULL=10800, tmp=1, retValue_acc=1, splverifierCounter=0, head=0, NULL=0, tmp=0, NULL=10795, NULL=0, NULL=10797, NULL=0, NULL=10801, NULL=0, NULL=0, NULL=10805, NULL=0, NULL=10802} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int pumpRunning = 0; [L525] int systemActive = 1; [L728] int waterLevel = 1; [L729] int methaneLevelCritical = 0; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L450] int splverifierCounter ; [L451] int tmp ; [L452] int tmp___0 ; [L453] int tmp___1 ; [L454] int tmp___2 ; [L457] splverifierCounter = 0 Loop: [L459] COND TRUE 1 [L461] COND TRUE splverifierCounter < 4 [L467] tmp = __VERIFIER_nondet_int() [L469] COND FALSE !(\read(tmp)) [L477] tmp___0 = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp___0)) [L487] tmp___2 = __VERIFIER_nondet_int() [L489] COND TRUE \read(tmp___2) [L532] COND FALSE !(\read(pumpRunning)) [L539] COND TRUE \read(systemActive) [L587] int tmp ; [L590] COND FALSE !(\read(pumpRunning)) [L561] int tmp ; [L564] COND TRUE ! pumpRunning [L684] int retValue_acc ; [L685] int tmp ; [L686] int tmp___0 ; [L808] int retValue_acc ; [L811] COND TRUE waterLevel < 2 [L812] retValue_acc = 1 [L813] return (retValue_acc); [L690] tmp = isHighWaterSensorDry() [L692] COND TRUE \read(tmp) [L693] tmp___0 = 0 [L697] retValue_acc = tmp___0 [L698] return (retValue_acc); [L566] tmp = isHighWaterLevel() [L568] COND FALSE !(\read(tmp)) [L919] int tmp ; [L920] int tmp___0 ; [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); [L924] tmp = getWaterLevel() [L926] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...