./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product56.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_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/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 d987d174a4a8df6e0aafdb6d8ee456b5bda233ea ............................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 01:10:19,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:10:19,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:10:19,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:10:19,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:10:19,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:10:19,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:10:19,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:10:19,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:10:19,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:10:19,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:10:19,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:10:19,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:10:19,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:10:19,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:10:19,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:10:19,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:10:19,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:10:19,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:10:19,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:10:19,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:10:19,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:10:19,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:10:19,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:10:19,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:10:19,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:10:19,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:10:19,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:10:19,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:10:19,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:10:19,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:10:19,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:10:19,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:10:19,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:10:19,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:10:19,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:10:19,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:10:19,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:10:19,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:10:19,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:10:19,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:10:19,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:10:19,945 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:10:19,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:10:19,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:10:19,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:10:19,947 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:10:19,947 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:10:19,947 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:10:19,948 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:10:19,948 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:10:19,948 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:10:19,948 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:10:19,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:10:19,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:10:19,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:10:19,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:10:19,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:10:19,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:10:19,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:10:19,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:10:19,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:10:19,950 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:10:19,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:10:19,951 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:10:19,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:10:19,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:10:19,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:10:19,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:10:19,952 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:10:19,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:10:19,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:10:19,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:10:19,953 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:10:19,954 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:10:19,954 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_e74c9349-4de0-4170-92f7-8bc38d541d14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d987d174a4a8df6e0aafdb6d8ee456b5bda233ea [2020-11-30 01:10:20,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:10:20,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:10:20,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:10:20,330 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:10:20,331 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:10:20,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2020-11-30 01:10:20,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/data/1e8253986/a5ae2ff6a3014b23a97051e6a1371c14/FLAGb7c058272 [2020-11-30 01:10:21,098 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:10:21,099 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2020-11-30 01:10:21,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/data/1e8253986/a5ae2ff6a3014b23a97051e6a1371c14/FLAGb7c058272 [2020-11-30 01:10:21,420 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/data/1e8253986/a5ae2ff6a3014b23a97051e6a1371c14 [2020-11-30 01:10:21,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:10:21,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:10:21,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:10:21,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:10:21,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:10:21,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:21,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d3f58b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21, skipping insertion in model container [2020-11-30 01:10:21,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:21,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:10:21,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:10:21,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:10:21,840 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:10:21,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:10:21,955 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:10:21,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21 WrapperNode [2020-11-30 01:10:21,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:10:21,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:10:21,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:10:21,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:10:21,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:21,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:22,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:10:22,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:10:22,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:10:22,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:10:22,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:22,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:22,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:22,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:22,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:22,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:22,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... [2020-11-30 01:10:22,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:10:22,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:10:22,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:10:22,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:10:22,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/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 [2020-11-30 01:10:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:10:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:10:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:10:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:10:23,650 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:10:23,650 INFO L298 CfgBuilder]: Removed 288 assume(true) statements. [2020-11-30 01:10:23,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:23 BoogieIcfgContainer [2020-11-30 01:10:23,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:10:23,653 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:10:23,654 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:10:23,657 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:10:23,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:10:23,658 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:10:21" (1/3) ... [2020-11-30 01:10:23,660 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ab1f644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:10:23, skipping insertion in model container [2020-11-30 01:10:23,660 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:10:23,660 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:21" (2/3) ... [2020-11-30 01:10:23,660 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ab1f644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:10:23, skipping insertion in model container [2020-11-30 01:10:23,660 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:10:23,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:23" (3/3) ... [2020-11-30 01:10:23,662 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2020-11-30 01:10:23,703 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:10:23,703 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:10:23,703 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:10:23,703 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:10:23,703 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:10:23,704 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:10:23,704 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:10:23,704 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:10:23,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states. [2020-11-30 01:10:23,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2020-11-30 01:10:23,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:10:23,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:10:23,797 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:10:23,797 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:23,798 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:10:23,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states. [2020-11-30 01:10:23,822 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2020-11-30 01:10:23,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:10:23,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:10:23,824 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:10:23,824 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:23,829 INFO L794 eck$LassoCheckResult]: Stem: 164#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 59#L1000true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 98#L1008true main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 10#L852true assume 0 != main_~tmp~10; 155#L826true havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 119#L749-1true [2020-11-30 01:10:23,830 INFO L796 eck$LassoCheckResult]: Loop: 119#L749-1true assume !false; 37#L681true assume test_~splverifierCounter~0 < 4; 186#L682true test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 189#L690true assume !(0 != test_~tmp~8); 191#L690-1true test_~tmp___0~2 := test_#t~nondet65;havoc test_#t~nondet65; 62#L700true assume !(0 != test_~tmp___0~2); 64#L700-1true test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 168#L710true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 173#L718-1true assume !(0 != ~pumpRunning~0); 7#L62true assume !(0 != ~systemActive~0); 108#L69true havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 122#L950true __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 113#L749true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 119#L749-1true [2020-11-30 01:10:23,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:23,835 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:10:23,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:23,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137572863] [2020-11-30 01:10:23,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:24,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:24,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:24,264 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:10:24,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:24,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1666938226, now seen corresponding path program 1 times [2020-11-30 01:10:24,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:24,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282635762] [2020-11-30 01:10:24,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:24,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282635762] [2020-11-30 01:10:24,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:24,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:10:24,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540263452] [2020-11-30 01:10:24,326 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:10:24,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:24,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:10:24,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:24,343 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 3 states. [2020-11-30 01:10:24,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:24,440 INFO L93 Difference]: Finished difference Result 370 states and 552 transitions. [2020-11-30 01:10:24,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:10:24,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 370 states and 552 transitions. [2020-11-30 01:10:24,463 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 242 [2020-11-30 01:10:24,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 370 states to 356 states and 537 transitions. [2020-11-30 01:10:24,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2020-11-30 01:10:24,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2020-11-30 01:10:24,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 537 transitions. [2020-11-30 01:10:24,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:10:24,489 INFO L691 BuchiCegarLoop]: Abstraction has 356 states and 537 transitions. [2020-11-30 01:10:24,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 537 transitions. [2020-11-30 01:10:24,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2020-11-30 01:10:24,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-11-30 01:10:24,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 534 transitions. [2020-11-30 01:10:24,540 INFO L714 BuchiCegarLoop]: Abstraction has 354 states and 534 transitions. [2020-11-30 01:10:24,541 INFO L594 BuchiCegarLoop]: Abstraction has 354 states and 534 transitions. [2020-11-30 01:10:24,541 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:10:24,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 354 states and 534 transitions. [2020-11-30 01:10:24,545 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2020-11-30 01:10:24,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:10:24,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:10:24,546 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:10:24,546 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:24,546 INFO L794 eck$LassoCheckResult]: Stem: 773#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 583#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 584#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 666#L1008 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 585#L852 assume 0 != main_~tmp~10; 586#L826 havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 607#L749-1 [2020-11-30 01:10:24,547 INFO L796 eck$LassoCheckResult]: Loop: 607#L749-1 assume !false; 634#L681 assume test_~splverifierCounter~0 < 4; 635#L682 test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 832#L690 assume !(0 != test_~tmp~8); 828#L690-1 test_~tmp___0~2 := test_#t~nondet65;havoc test_#t~nondet65; 670#L700 assume !(0 != test_~tmp___0~2); 671#L700-1 test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 676#L710 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 775#L718-1 assume !(0 != ~pumpRunning~0); 578#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 579#L146 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret8, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 811#L120-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 690#L94-3 assume !(0 == ~pumpRunning~0); 588#L69 havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 727#L950 __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 733#L749 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 607#L749-1 [2020-11-30 01:10:24,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:24,547 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:10:24,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:24,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819792877] [2020-11-30 01:10:24,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:24,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:24,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:24,717 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:10:24,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:24,718 INFO L82 PathProgramCache]: Analyzing trace with hash 558894456, now seen corresponding path program 1 times [2020-11-30 01:10:24,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:24,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524180725] [2020-11-30 01:10:24,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:24,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524180725] [2020-11-30 01:10:24,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:24,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:10:24,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196970412] [2020-11-30 01:10:24,751 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:10:24,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:24,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:10:24,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:24,752 INFO L87 Difference]: Start difference. First operand 354 states and 534 transitions. cyclomatic complexity: 183 Second operand 3 states. [2020-11-30 01:10:25,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:25,033 INFO L93 Difference]: Finished difference Result 365 states and 514 transitions. [2020-11-30 01:10:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:10:25,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 365 states and 514 transitions. [2020-11-30 01:10:25,040 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2020-11-30 01:10:25,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 365 states to 365 states and 514 transitions. [2020-11-30 01:10:25,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 365 [2020-11-30 01:10:25,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 365 [2020-11-30 01:10:25,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 365 states and 514 transitions. [2020-11-30 01:10:25,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:10:25,057 INFO L691 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2020-11-30 01:10:25,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states and 514 transitions. [2020-11-30 01:10:25,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2020-11-30 01:10:25,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-11-30 01:10:25,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 514 transitions. [2020-11-30 01:10:25,106 INFO L714 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2020-11-30 01:10:25,106 INFO L594 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2020-11-30 01:10:25,106 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:10:25,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 514 transitions. [2020-11-30 01:10:25,110 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2020-11-30 01:10:25,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:10:25,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:10:25,111 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:10:25,112 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:25,112 INFO L794 eck$LassoCheckResult]: Stem: 1453#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1311#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 1312#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1374#L1008 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 1313#L852 assume 0 != main_~tmp~10; 1314#L826 havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1329#L749-1 [2020-11-30 01:10:25,112 INFO L796 eck$LassoCheckResult]: Loop: 1329#L749-1 assume !false; 1349#L681 assume test_~splverifierCounter~0 < 4; 1350#L682 test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 1457#L690 assume !(0 != test_~tmp~8); 1534#L690-1 test_~tmp___0~2 := test_#t~nondet65;havoc test_#t~nondet65; 1533#L700 assume !(0 != test_~tmp___0~2); 1531#L700-1 test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 1530#L710 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1454#L718-1 assume !(0 != ~pumpRunning~0); 1528#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1525#L146 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret8, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1523#L120-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1520#L94-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1517#L958-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1456#L963-3 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 1387#L248-9 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1388#L248-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1361#L254-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1315#L98-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1317#L69 havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 1419#L950 __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 1426#L749 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 1329#L749-1 [2020-11-30 01:10:25,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:25,113 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:10:25,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:25,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394244631] [2020-11-30 01:10:25,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:25,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:25,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:25,290 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:10:25,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:25,291 INFO L82 PathProgramCache]: Analyzing trace with hash 222495876, now seen corresponding path program 1 times [2020-11-30 01:10:25,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:25,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100609928] [2020-11-30 01:10:25,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:25,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:25,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:25,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:10:25,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:25,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1475801002, now seen corresponding path program 1 times [2020-11-30 01:10:25,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:25,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814631772] [2020-11-30 01:10:25,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:25,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:25,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:25,420 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:10:25,575 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 01:11:45,259 WARN L193 SmtUtils]: Spent 1.33 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:12:40,895 WARN L193 SmtUtils]: Spent 55.63 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:12:41,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:12:41 BoogieIcfgContainer [2020-11-30 01:12:41,048 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:12:41,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:12:41,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:12:41,049 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:12:41,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:23" (3/4) ... [2020-11-30 01:12:41,053 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:12:41,106 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e74c9349-4de0-4170-92f7-8bc38d541d14/bin/uautomizer/witness.graphml [2020-11-30 01:12:41,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:12:41,108 INFO L168 Benchmark]: Toolchain (without parser) took 139682.34 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 81.8 MB in the beginning and 103.2 MB in the end (delta: -21.4 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:41,109 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 39.4 MB in the beginning and 39.4 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:41,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.08 ms. Allocated memory is still 113.2 MB. Free memory was 81.5 MB in the beginning and 78.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:41,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.77 ms. Allocated memory is still 113.2 MB. Free memory was 78.9 MB in the beginning and 74.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:41,111 INFO L168 Benchmark]: Boogie Preprocessor took 98.13 ms. Allocated memory is still 113.2 MB. Free memory was 74.0 MB in the beginning and 70.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:41,111 INFO L168 Benchmark]: RCFGBuilder took 1486.81 ms. Allocated memory is still 113.2 MB. Free memory was 70.6 MB in the beginning and 48.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:41,112 INFO L168 Benchmark]: BuchiAutomizer took 137394.71 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 48.6 MB in the beginning and 105.3 MB in the end (delta: -56.7 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:41,112 INFO L168 Benchmark]: Witness Printer took 58.26 ms. Allocated memory is still 144.7 MB. Free memory was 105.3 MB in the beginning and 103.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:41,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 39.4 MB in the beginning and 39.4 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 528.08 ms. Allocated memory is still 113.2 MB. Free memory was 81.5 MB in the beginning and 78.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.77 ms. Allocated memory is still 113.2 MB. Free memory was 78.9 MB in the beginning and 74.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.13 ms. Allocated memory is still 113.2 MB. Free memory was 74.0 MB in the beginning and 70.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1486.81 ms. Allocated memory is still 113.2 MB. Free memory was 70.6 MB in the beginning and 48.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 137394.71 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 48.6 MB in the beginning and 105.3 MB in the end (delta: -56.7 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. * Witness Printer took 58.26 ms. Allocated memory is still 144.7 MB. Free memory was 105.3 MB in the beginning and 103.2 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 3 locations. The remainder module has 365 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 137.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 136.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 365 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 480 SDtfs, 411 SDslu, 344 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 680]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23943} State at position 1 is {NULL=0, NULL=23943, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bbfa9c8=0, retValue_acc=1, methaneLevelCritical=0, NULL=23945, retValue_acc=0, tmp=0, tmp___1=0, NULL=0, NULL=53333, cleanupTimeShifts=4, NULL=23947, tmp=1, waterLevel=1, NULL=53328, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f0b02ec=0, NULL=53323, \result=1, head=0, pumpRunning=0, NULL=53329, NULL=53334, \result=1, NULL=0, NULL=53335, NULL=0, tmp=1, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3085c1c4=0, NULL=0, tmp___0=0, tmp=1, NULL=53318, NULL=53324, NULL=23950, tmp=0, head=0, NULL=0, NULL=53322, NULL=0, NULL=0, retValue_acc=0, NULL=53327, NULL=53330, tmp=0, NULL=0, tmp___0=0, NULL=23948, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60d32fe6=0, NULL=0, tmp=0, NULL=53321, tmp___0=0, NULL=0, systemActive=1, \result=1, NULL=0, NULL=23946, \result=0, NULL=23949, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=53337, NULL=53326, NULL=53320, \result=0, NULL=53331, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71e11a56=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66e58b22=65, NULL=53317, NULL=53325, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@641fbb16=0, NULL=53336, tmp___2=65, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=23944, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@202bcadd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48b83be6=0, NULL=0, NULL=0, NULL=53319, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32eb22a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6711949e=0, NULL=0, NULL=53332} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L54] int pumpRunning = 0; [L55] int systemActive = 1; [L470] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L767] int cleanupTimeShifts = 4; [L875] int waterLevel = 1; [L876] int methaneLevelCritical = 0; [L843] int retValue_acc ; [L844] int tmp ; [L1004] int retValue_acc ; [L1007] retValue_acc = 1 [L1008] return (retValue_acc); [L850] tmp = valid_product() [L852] COND TRUE \read(tmp) [L671] int splverifierCounter ; [L672] int tmp ; [L673] int tmp___0 ; [L674] int tmp___1 ; [L675] int tmp___2 ; [L678] splverifierCounter = 0 Loop: [L680] COND TRUE 1 [L682] COND TRUE splverifierCounter < 4 [L688] tmp = __VERIFIER_nondet_int() [L690] COND FALSE !(\read(tmp)) [L698] tmp___0 = __VERIFIER_nondet_int() [L700] COND FALSE !(\read(tmp___0)) [L708] tmp___2 = __VERIFIER_nondet_int() [L710] COND TRUE \read(tmp___2) [L296] systemActive = 1 [L62] COND FALSE !(\read(pumpRunning)) [L69] COND TRUE \read(systemActive) [L143] int tmp ; [L146] COND FALSE !(\read(pumpRunning)) [L117] int tmp ; [L120] COND FALSE !(\read(pumpRunning)) [L91] int tmp ; [L94] COND TRUE ! pumpRunning [L240] int retValue_acc ; [L241] int tmp ; [L242] int tmp___0 ; [L955] int retValue_acc ; [L958] COND TRUE waterLevel < 2 [L959] retValue_acc = 1 [L960] return (retValue_acc); [L246] tmp = isHighWaterSensorDry() [L248] COND TRUE \read(tmp) [L249] tmp___0 = 0 [L253] retValue_acc = tmp___0 [L254] return (retValue_acc); [L96] tmp = isHighWaterLevel() [L98] COND FALSE !(\read(tmp)) [L742] int tmp ; [L743] int tmp___0 ; [L946] int retValue_acc ; [L949] retValue_acc = waterLevel [L950] return (retValue_acc); [L747] tmp = getWaterLevel() [L749] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...