./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/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 d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-29 23:39:22,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:39:22,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:39:22,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:39:22,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:39:22,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:39:22,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:39:22,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:39:22,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:39:22,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:39:22,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:39:22,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:39:22,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:39:22,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:39:22,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:39:22,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:39:22,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:39:22,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:39:22,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:39:22,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:39:22,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:39:22,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:39:22,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:39:22,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:39:22,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:39:22,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:39:22,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:39:22,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:39:22,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:39:22,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:39:22,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:39:22,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:39:22,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:39:22,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:39:22,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:39:22,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:39:22,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:39:22,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:39:22,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:39:22,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:39:22,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:39:22,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:39:22,913 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:39:22,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:39:22,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:39:22,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:39:22,916 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:39:22,916 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:39:22,916 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:39:22,916 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:39:22,917 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:39:22,917 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:39:22,918 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:39:22,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:39:22,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:39:22,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:39:22,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:39:22,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:39:22,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:39:22,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:39:22,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:39:22,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:39:22,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:39:22,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:39:22,921 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:39:22,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:39:22,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:39:22,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:39:22,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:39:22,922 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:39:22,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:39:22,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:39:22,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:39:22,925 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:39:22,927 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:39:22,927 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd [2020-11-29 23:39:23,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:39:23,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:39:23,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:39:23,234 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:39:23,235 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:39:23,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2020-11-29 23:39:23,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/data/888fe5c77/38974d71ffb84f16ba663637c6c68e00/FLAGa956424a4 [2020-11-29 23:39:23,876 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:39:23,877 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2020-11-29 23:39:23,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/data/888fe5c77/38974d71ffb84f16ba663637c6c68e00/FLAGa956424a4 [2020-11-29 23:39:24,201 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/data/888fe5c77/38974d71ffb84f16ba663637c6c68e00 [2020-11-29 23:39:24,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:39:24,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:39:24,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:39:24,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:39:24,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:39:24,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74dc5fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24, skipping insertion in model container [2020-11-29 23:39:24,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:39:24,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:39:24,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:39:24,602 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:39:24,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:39:24,724 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:39:24,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24 WrapperNode [2020-11-29 23:39:24,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:39:24,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:39:24,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:39:24,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:39:24,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:39:24,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:39:24,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:39:24,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:39:24,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:39:24,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:39:24,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:39:24,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:39:24,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/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 [2020-11-29 23:39:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:39:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:39:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:39:24,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:39:25,974 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:39:25,974 INFO L298 CfgBuilder]: Removed 172 assume(true) statements. [2020-11-29 23:39:25,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:39:25 BoogieIcfgContainer [2020-11-29 23:39:25,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:39:25,977 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:39:25,977 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:39:25,980 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:39:25,981 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:39:25,981 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:39:24" (1/3) ... [2020-11-29 23:39:25,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3144d72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:39:25, skipping insertion in model container [2020-11-29 23:39:25,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:39:25,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (2/3) ... [2020-11-29 23:39:25,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3144d72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:39:25, skipping insertion in model container [2020-11-29 23:39:25,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:39:25,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:39:25" (3/3) ... [2020-11-29 23:39:25,985 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-11-29 23:39:26,060 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:39:26,060 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:39:26,060 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:39:26,060 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:39:26,060 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:39:26,060 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:39:26,061 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:39:26,061 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:39:26,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-29 23:39:26,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 23:39:26,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:39:26,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:39:26,117 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:39:26,117 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:39:26,117 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:39:26,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-29 23:39:26,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 23:39:26,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:39:26,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:39:26,128 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:39:26,128 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:39:26,133 INFO L794 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 8#L-1true havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 37#L857true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 59#L865true main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 87#L952true assume 0 != main_~tmp~9; 24#L929true havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, 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; 41#L813-1true [2020-11-29 23:39:26,133 INFO L796 eck$LassoCheckResult]: Loop: 41#L813-1true assume !false; 36#L527true assume test_~splverifierCounter~0 < 4; 94#L528true test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 100#L536true assume !(0 != test_~tmp~3); 102#L536-1true test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 40#L546true assume !(0 != test_~tmp___0~0); 42#L546-1true test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 83#L556true assume 0 != test_~tmp___2~0; 68#L562-1true assume !(0 != ~pumpRunning~0); 63#L595true assume !(0 != ~systemActive~0); 114#L602true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 21#L92-1true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 66#L807true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 41#L813-1true [2020-11-29 23:39:26,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:26,140 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 23:39:26,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:26,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249871693] [2020-11-29 23:39:26,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:26,488 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:26,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:26,640 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:39:26,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:26,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1671709762, now seen corresponding path program 1 times [2020-11-29 23:39:26,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:26,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781190474] [2020-11-29 23:39:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:26,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:26,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:26,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:39:26,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:26,662 INFO L82 PathProgramCache]: Analyzing trace with hash 42569176, now seen corresponding path program 1 times [2020-11-29 23:39:26,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:26,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970728793] [2020-11-29 23:39:26,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:39:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:39:26,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970728793] [2020-11-29 23:39:26,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:39:26,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:39:26,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987194303] [2020-11-29 23:39:26,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:39:26,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:39:26,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:39:26,919 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 6 states. [2020-11-29 23:39:27,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:39:27,268 INFO L93 Difference]: Finished difference Result 270 states and 381 transitions. [2020-11-29 23:39:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:39:27,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 381 transitions. [2020-11-29 23:39:27,286 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 173 [2020-11-29 23:39:27,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 249 states and 360 transitions. [2020-11-29 23:39:27,295 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2020-11-29 23:39:27,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2020-11-29 23:39:27,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 360 transitions. [2020-11-29 23:39:27,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:39:27,306 INFO L691 BuchiCegarLoop]: Abstraction has 249 states and 360 transitions. [2020-11-29 23:39:27,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 360 transitions. [2020-11-29 23:39:27,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 150. [2020-11-29 23:39:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-29 23:39:27,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-11-29 23:39:27,362 INFO L714 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-11-29 23:39:27,362 INFO L594 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-11-29 23:39:27,362 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:39:27,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2020-11-29 23:39:27,367 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2020-11-29 23:39:27,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:39:27,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:39:27,368 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:39:27,368 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:39:27,368 INFO L794 eck$LassoCheckResult]: Stem: 496#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 410#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 411#L857 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 453#L865 main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 483#L952 assume 0 != main_~tmp~9; 432#L929 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, 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; 433#L813-1 [2020-11-29 23:39:27,368 INFO L796 eck$LassoCheckResult]: Loop: 433#L813-1 assume !false; 451#L527 assume test_~splverifierCounter~0 < 4; 452#L528 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 501#L536 assume !(0 != test_~tmp~3); 474#L536-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 457#L546 assume !(0 != test_~tmp___0~0); 458#L546-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 460#L556 assume 0 != test_~tmp___2~0; 492#L562-1 assume !(0 != ~pumpRunning~0); 488#L595 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 478#L653 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret56, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 479#L627-1 assume !(0 != ~pumpRunning~0); 480#L602 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 428#L92-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 429#L807 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 433#L813-1 [2020-11-29 23:39:27,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:27,369 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 23:39:27,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:27,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370509676] [2020-11-29 23:39:27,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:27,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:27,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:27,525 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:39:27,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:27,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1950294320, now seen corresponding path program 1 times [2020-11-29 23:39:27,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:27,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500886548] [2020-11-29 23:39:27,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:27,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:27,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:27,546 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:39:27,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:27,547 INFO L82 PathProgramCache]: Analyzing trace with hash 104912074, now seen corresponding path program 1 times [2020-11-29 23:39:27,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:27,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742316949] [2020-11-29 23:39:27,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:39:27,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:39:27,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742316949] [2020-11-29 23:39:27,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:39:27,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:39:27,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135904057] [2020-11-29 23:39:27,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:39:27,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:39:27,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:39:27,786 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand 5 states. [2020-11-29 23:39:28,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:39:28,015 INFO L93 Difference]: Finished difference Result 511 states and 749 transitions. [2020-11-29 23:39:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:39:28,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 511 states and 749 transitions. [2020-11-29 23:39:28,024 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 367 [2020-11-29 23:39:28,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 511 states to 511 states and 749 transitions. [2020-11-29 23:39:28,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 511 [2020-11-29 23:39:28,038 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 511 [2020-11-29 23:39:28,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 511 states and 749 transitions. [2020-11-29 23:39:28,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:39:28,049 INFO L691 BuchiCegarLoop]: Abstraction has 511 states and 749 transitions. [2020-11-29 23:39:28,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states and 749 transitions. [2020-11-29 23:39:28,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 294. [2020-11-29 23:39:28,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-11-29 23:39:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 418 transitions. [2020-11-29 23:39:28,083 INFO L714 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2020-11-29 23:39:28,084 INFO L594 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2020-11-29 23:39:28,084 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:39:28,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 294 states and 418 transitions. [2020-11-29 23:39:28,089 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 208 [2020-11-29 23:39:28,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:39:28,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:39:28,091 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:39:28,091 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:39:28,092 INFO L794 eck$LassoCheckResult]: Stem: 1194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1089#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 1090#L857 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1135#L865 main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 1173#L952 assume 0 != main_~tmp~9; 1114#L929 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, 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; 1115#L813-1 [2020-11-29 23:39:28,093 INFO L796 eck$LassoCheckResult]: Loop: 1115#L813-1 assume !false; 1133#L527 assume test_~splverifierCounter~0 < 4; 1134#L528 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 1312#L536 assume !(0 != test_~tmp~3); 1310#L536-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 1140#L546 assume !(0 != test_~tmp___0~0); 1141#L546-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 1313#L556 assume 0 != test_~tmp___2~0; 1309#L562-1 assume !(0 != ~pumpRunning~0); 1276#L595 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1275#L653 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret56, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1199#L627-1 assume !(0 != ~pumpRunning~0); 1169#L602 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1230#L92-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 1182#L807 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1183#L124 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 1138#L813 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1115#L813-1 [2020-11-29 23:39:28,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:28,094 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 23:39:28,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:28,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979434327] [2020-11-29 23:39:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:28,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:28,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:28,221 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:39:28,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:28,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1627108100, now seen corresponding path program 1 times [2020-11-29 23:39:28,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:28,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068641478] [2020-11-29 23:39:28,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:28,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:28,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:28,241 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:39:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:28,245 INFO L82 PathProgramCache]: Analyzing trace with hash 2036262942, now seen corresponding path program 1 times [2020-11-29 23:39:28,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:28,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496316482] [2020-11-29 23:39:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:28,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:28,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:28,383 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:40:41,298 WARN L193 SmtUtils]: Spent 1.21 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 23:41:34,306 WARN L193 SmtUtils]: Spent 53.00 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 23:41:34,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:41:34 BoogieIcfgContainer [2020-11-29 23:41:34,485 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:41:34,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:41:34,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:41:34,486 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:41:34,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:39:25" (3/4) ... [2020-11-29 23:41:34,489 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:41:34,541 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f5db5e1e-4757-4af9-b6af-46cf2e543489/bin/uautomizer/witness.graphml [2020-11-29 23:41:34,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:41:34,542 INFO L168 Benchmark]: Toolchain (without parser) took 130336.77 ms. Allocated memory was 90.2 MB in the beginning and 151.0 MB in the end (delta: 60.8 MB). Free memory was 56.7 MB in the beginning and 70.6 MB in the end (delta: -13.9 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:41:34,543 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 90.2 MB. Free memory was 63.8 MB in the beginning and 63.8 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:41:34,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.88 ms. Allocated memory is still 90.2 MB. Free memory was 56.7 MB in the beginning and 56.9 MB in the end (delta: -270.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:41:34,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.36 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 53.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:41:34,545 INFO L168 Benchmark]: Boogie Preprocessor took 52.88 ms. Allocated memory is still 90.2 MB. Free memory was 53.1 MB in the beginning and 50.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:41:34,546 INFO L168 Benchmark]: RCFGBuilder took 1103.47 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 50.6 MB in the beginning and 55.8 MB in the end (delta: -5.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:41:34,546 INFO L168 Benchmark]: BuchiAutomizer took 128508.29 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 55.2 MB in the beginning and 72.7 MB in the end (delta: -17.5 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:41:34,547 INFO L168 Benchmark]: Witness Printer took 55.27 ms. Allocated memory is still 151.0 MB. Free memory was 72.7 MB in the beginning and 70.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:41:34,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 90.2 MB. Free memory was 63.8 MB in the beginning and 63.8 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 515.88 ms. Allocated memory is still 90.2 MB. Free memory was 56.7 MB in the beginning and 56.9 MB in the end (delta: -270.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.36 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 53.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.88 ms. Allocated memory is still 90.2 MB. Free memory was 53.1 MB in the beginning and 50.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1103.47 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 50.6 MB in the beginning and 55.8 MB in the end (delta: -5.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 128508.29 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 55.2 MB in the beginning and 72.7 MB in the end (delta: -17.5 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.1 GB. * Witness Printer took 55.27 ms. Allocated memory is still 151.0 MB. Free memory was 72.7 MB in the beginning and 70.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 294 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 127.5s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 316 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 294 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 365 SDtfs, 1154 SDslu, 1360 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 526]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18303} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=18330, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@124eb702=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1266e93c=0, NULL=18303, NULL=18310, NULL=0, NULL=18317, NULL=0, NULL=0, NULL=0, NULL=18320, NULL=18325, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2883b063=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13f5b2a6=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71d66a5b=0, NULL=18328, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b504b86=0, NULL=18311, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23c22857=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=18326, NULL=18324, cleanupTimeShifts=4, NULL=18308, NULL=18331, tmp=0, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, NULL=18318, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@383bc061=0, NULL=0, NULL=18306, NULL=0, NULL=18307, NULL=18329, tmp___0=0, retValue_acc=0, NULL=18304, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=18309, \result=0, NULL=0, NULL=0, NULL=0, NULL=18312, NULL=18322, NULL=18315, NULL=18321, NULL=0, NULL=18314, NULL=0, NULL=18313, tmp___2=60, NULL=0, splverifierCounter=0, NULL=0, \result=0, NULL=18316, NULL=18305, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31771aad=0, tmp___1=0, head=0, tmp=0, tmp=1, NULL=0, NULL=0, NULL=18327, NULL=18323, NULL=0, NULL=18319, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@111bccda=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L316] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L870] int cleanupTimeShifts = 4; [L943] int retValue_acc ; [L944] int tmp ; [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); [L950] tmp = valid_product() [L952] COND TRUE \read(tmp) [L517] int splverifierCounter ; [L518] int tmp ; [L519] int tmp___0 ; [L520] int tmp___1 ; [L521] int tmp___2 ; [L524] splverifierCounter = 0 Loop: [L526] COND TRUE 1 [L528] COND TRUE splverifierCounter < 4 [L534] tmp = __VERIFIER_nondet_int() [L536] COND FALSE !(\read(tmp)) [L544] tmp___0 = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp___0)) [L554] tmp___2 = __VERIFIER_nondet_int() [L556] COND TRUE \read(tmp___2) [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L650] int tmp ; [L653] COND FALSE !(\read(pumpRunning)) [L624] int tmp ; [L627] COND FALSE !(\read(pumpRunning)) [L799] int tmp ; [L800] int tmp___0 ; [L801] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L805] tmp = isMethaneLevelCritical() [L807] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L811] tmp___0 = getWaterLevel() [L813] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...