./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.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_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/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 ab53d3429947c30ff169bac7bc42ee99cd27cfaa ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:44:20,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:44:20,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:44:20,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:44:20,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:44:20,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:44:20,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:44:20,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:44:20,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:44:20,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:44:20,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:44:20,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:44:20,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:44:20,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:44:20,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:44:20,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:44:20,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:44:20,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:44:20,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:44:20,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:44:20,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:44:20,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:44:20,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:44:20,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:44:20,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:44:20,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:44:20,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:44:20,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:44:20,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:44:20,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:44:20,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:44:20,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:44:20,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:44:20,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:44:20,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:44:20,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:44:20,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:44:20,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:44:20,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:44:20,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:44:20,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:44:20,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:44:21,035 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:44:21,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:44:21,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:44:21,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:44:21,038 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:44:21,038 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:44:21,038 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:44:21,039 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:44:21,039 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:44:21,039 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:44:21,040 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:44:21,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:44:21,041 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:44:21,041 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:44:21,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:44:21,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:44:21,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:44:21,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:44:21,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:44:21,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:44:21,042 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:44:21,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:44:21,043 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:44:21,043 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:44:21,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:44:21,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:44:21,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:44:21,044 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:44:21,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:44:21,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:44:21,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:44:21,044 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:44:21,046 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:44:21,046 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_a9d91a4b-adbe-4111-aa72-62f10e057f45/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab53d3429947c30ff169bac7bc42ee99cd27cfaa [2020-11-30 00:44:21,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:44:21,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:44:21,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:44:21,377 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:44:21,377 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:44:21,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-11-30 00:44:21,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/data/3f55f97b4/e158d93c8c7b4a659a1ba68bfa21dc99/FLAG4bc0e54fc [2020-11-30 00:44:22,041 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:44:22,041 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-11-30 00:44:22,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/data/3f55f97b4/e158d93c8c7b4a659a1ba68bfa21dc99/FLAG4bc0e54fc [2020-11-30 00:44:22,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/data/3f55f97b4/e158d93c8c7b4a659a1ba68bfa21dc99 [2020-11-30 00:44:22,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:44:22,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:44:22,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:44:22,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:44:22,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:44:22,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:44:22" (1/1) ... [2020-11-30 00:44:22,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369c6625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:22, skipping insertion in model container [2020-11-30 00:44:22,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:44:22" (1/1) ... [2020-11-30 00:44:22,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:44:22,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:44:22,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:44:22,830 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:44:22,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:44:23,008 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:44:23,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23 WrapperNode [2020-11-30 00:44:23,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:44:23,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:44:23,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:44:23,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:44:23,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... [2020-11-30 00:44:23,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... [2020-11-30 00:44:23,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:44:23,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:44:23,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:44:23,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:44:23,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... [2020-11-30 00:44:23,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... [2020-11-30 00:44:23,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... [2020-11-30 00:44:23,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... [2020-11-30 00:44:23,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... [2020-11-30 00:44:23,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... [2020-11-30 00:44:23,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... [2020-11-30 00:44:23,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:44:23,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:44:23,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:44:23,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:44:23,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/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 00:44:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:44:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:44:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:44:23,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:44:24,279 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:44:24,279 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-11-30 00:44:24,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:44:24 BoogieIcfgContainer [2020-11-30 00:44:24,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:44:24,282 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:44:24,282 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:44:24,285 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:44:24,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:44:24,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:44:22" (1/3) ... [2020-11-30 00:44:24,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4077034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:44:24, skipping insertion in model container [2020-11-30 00:44:24,288 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:44:24,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:23" (2/3) ... [2020-11-30 00:44:24,289 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4077034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:44:24, skipping insertion in model container [2020-11-30 00:44:24,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:44:24,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:44:24" (3/3) ... [2020-11-30 00:44:24,290 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-11-30 00:44:24,333 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:44:24,334 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:44:24,334 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:44:24,334 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:44:24,334 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:44:24,334 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:44:24,335 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:44:24,335 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:44:24,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-11-30 00:44:24,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 00:44:24,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:44:24,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:44:24,385 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:44:24,385 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:44:24,385 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:44:24,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-11-30 00:44:24,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 00:44:24,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:44:24,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:44:24,394 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:44:24,394 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:44:24,399 INFO L794 eck$LassoCheckResult]: Stem: 99#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~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 11#L552true 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; 30#L560true main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 103#L250true assume 0 != main_~tmp~0; 98#L223true havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 56#L573-1true [2020-11-30 00:44:24,400 INFO L796 eck$LassoCheckResult]: Loop: 56#L573-1true assume !false; 100#L476true assume test_~splverifierCounter~0 < 4; 37#L477true test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 58#L485true assume !(0 != test_~tmp~5); 39#L485-1true test_~tmp___0~2 := test_#t~nondet40;havoc test_#t~nondet40; 106#L495true assume !(0 != test_~tmp___0~2); 104#L495-1true test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 22#L505true assume 0 != test_~tmp___2~0; 114#L511-2true assume !(0 != ~pumpRunning~0); 95#L275true assume !(0 != ~systemActive~0); 23#L282true havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 109#L134true __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 53#L573true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 56#L573-1true [2020-11-30 00:44:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:24,406 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:44:24,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:24,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425287629] [2020-11-30 00:44:24,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:24,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:24,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:24,835 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:44:24,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:24,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1679775164, now seen corresponding path program 1 times [2020-11-30 00:44:24,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:24,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749570385] [2020-11-30 00:44:24,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:24,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:24,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:24,856 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:44:24,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:24,857 INFO L82 PathProgramCache]: Analyzing trace with hash 34503774, now seen corresponding path program 1 times [2020-11-30 00:44:24,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:24,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115545673] [2020-11-30 00:44:24,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:25,057 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 00:44:25,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115545673] [2020-11-30 00:44:25,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:44:25,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:44:25,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961456937] [2020-11-30 00:44:25,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:44:25,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:44:25,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:44:25,191 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 6 states. [2020-11-30 00:44:25,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:44:25,475 INFO L93 Difference]: Finished difference Result 114 states and 163 transitions. [2020-11-30 00:44:25,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:44:25,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 163 transitions. [2020-11-30 00:44:25,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-30 00:44:25,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2020-11-30 00:44:25,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2020-11-30 00:44:25,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2020-11-30 00:44:25,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2020-11-30 00:44:25,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:44:25,498 INFO L691 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 00:44:25,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2020-11-30 00:44:25,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-30 00:44:25,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-30 00:44:25,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-11-30 00:44:25,543 INFO L714 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 00:44:25,543 INFO L594 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 00:44:25,543 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:44:25,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2020-11-30 00:44:25,549 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-30 00:44:25,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:44:25,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:44:25,551 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:44:25,551 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:44:25,551 INFO L794 eck$LassoCheckResult]: Stem: 353#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~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 260#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 261#L552 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; 267#L560 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 291#L250 assume 0 != main_~tmp~0; 352#L223 havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 255#L573-1 [2020-11-30 00:44:25,552 INFO L796 eck$LassoCheckResult]: Loop: 255#L573-1 assume !false; 328#L476 assume test_~splverifierCounter~0 < 4; 301#L477 test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 302#L485 assume !(0 != test_~tmp~5); 305#L485-1 test_~tmp___0~2 := test_#t~nondet40;havoc test_#t~nondet40; 306#L495 assume !(0 != test_~tmp___0~2); 304#L495-1 test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 283#L505 assume 0 != test_~tmp___2~0; 257#L511-2 assume !(0 != ~pumpRunning~0); 271#L275 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 348#L333 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret18, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 272#L307-1 assume !(0 == ~pumpRunning~0); 265#L282 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 284#L134 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 326#L573 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 255#L573-1 [2020-11-30 00:44:25,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:25,555 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:44:25,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:25,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650160592] [2020-11-30 00:44:25,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:25,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:25,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:25,714 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:44:25,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:25,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1996917022, now seen corresponding path program 1 times [2020-11-30 00:44:25,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:25,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579416187] [2020-11-30 00:44:25,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:25,732 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 00:44:25,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579416187] [2020-11-30 00:44:25,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:44:25,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:44:25,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674380512] [2020-11-30 00:44:25,733 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:44:25,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:44:25,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:44:25,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:44:25,734 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand 3 states. [2020-11-30 00:44:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:44:25,847 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2020-11-30 00:44:25,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:44:25,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2020-11-30 00:44:25,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2020-11-30 00:44:25,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2020-11-30 00:44:25,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2020-11-30 00:44:25,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2020-11-30 00:44:25,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2020-11-30 00:44:25,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:44:25,855 INFO L691 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2020-11-30 00:44:25,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2020-11-30 00:44:25,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-11-30 00:44:25,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-30 00:44:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2020-11-30 00:44:25,864 INFO L714 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2020-11-30 00:44:25,864 INFO L594 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2020-11-30 00:44:25,864 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:44:25,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2020-11-30 00:44:25,867 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2020-11-30 00:44:25,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:44:25,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:44:25,868 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:44:25,868 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] [2020-11-30 00:44:25,868 INFO L794 eck$LassoCheckResult]: Stem: 619#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~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 520#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 521#L552 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; 527#L560 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 554#L250 assume 0 != main_~tmp~0; 618#L223 havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 515#L573-1 [2020-11-30 00:44:25,869 INFO L796 eck$LassoCheckResult]: Loop: 515#L573-1 assume !false; 593#L476 assume test_~splverifierCounter~0 < 4; 565#L477 test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 566#L485 assume !(0 != test_~tmp~5); 569#L485-1 test_~tmp___0~2 := test_#t~nondet40;havoc test_#t~nondet40; 570#L495 assume !(0 != test_~tmp___0~2); 568#L495-1 test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 544#L505 assume 0 != test_~tmp___2~0; 517#L511-2 assume !(0 != ~pumpRunning~0); 617#L275 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 613#L333 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret18, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 530#L307-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret37, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 531#L142-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 538#L147-1 isHighWaterLevel_#t~ret37 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret37;havoc isHighWaterLevel_#t~ret37; 549#L435-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 596#L435-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 577#L441-1 processEnvironment__wrappee__highWaterSensor_#t~ret18 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret18;havoc processEnvironment__wrappee__highWaterSensor_#t~ret18; 578#L311-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 545#L282 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 546#L134 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 591#L573 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 515#L573-1 [2020-11-30 00:44:25,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:25,870 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:44:25,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:25,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712662679] [2020-11-30 00:44:25,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:25,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:25,982 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:25,995 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:44:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:26,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1058929102, now seen corresponding path program 1 times [2020-11-30 00:44:26,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:26,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666977290] [2020-11-30 00:44:26,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:26,028 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:26,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:26,039 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:44:26,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:26,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1515000296, now seen corresponding path program 1 times [2020-11-30 00:44:26,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:26,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147579176] [2020-11-30 00:44:26,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:26,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:26,169 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:26,195 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:44:26,336 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-30 00:45:39,573 WARN L193 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:46:27,971 WARN L193 SmtUtils]: Spent 48.39 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:46:28,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:46:28 BoogieIcfgContainer [2020-11-30 00:46:28,269 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:46:28,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:46:28,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:46:28,276 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:46:28,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:44:24" (3/4) ... [2020-11-30 00:46:28,279 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:46:28,344 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a9d91a4b-adbe-4111-aa72-62f10e057f45/bin/uautomizer/witness.graphml [2020-11-30 00:46:28,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:46:28,346 INFO L168 Benchmark]: Toolchain (without parser) took 126007.19 ms. Allocated memory was 86.0 MB in the beginning and 134.2 MB in the end (delta: 48.2 MB). Free memory was 53.3 MB in the beginning and 77.9 MB in the end (delta: -24.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:28,346 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 60.3 MB in the beginning and 60.3 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:46:28,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.75 ms. Allocated memory is still 86.0 MB. Free memory was 53.3 MB in the beginning and 53.3 MB in the end (delta: 33.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:28,348 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.80 ms. Allocated memory is still 86.0 MB. Free memory was 53.3 MB in the beginning and 49.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:28,349 INFO L168 Benchmark]: Boogie Preprocessor took 45.58 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 47.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:28,349 INFO L168 Benchmark]: RCFGBuilder took 1146.79 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 47.0 MB in the beginning and 72.1 MB in the end (delta: -25.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:28,350 INFO L168 Benchmark]: BuchiAutomizer took 123987.41 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 71.5 MB in the beginning and 80.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 77.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:28,351 INFO L168 Benchmark]: Witness Printer took 74.20 ms. Allocated memory is still 134.2 MB. Free memory was 80.0 MB in the beginning and 77.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:28,356 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 86.0 MB. Free memory was 60.3 MB in the beginning and 60.3 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 668.75 ms. Allocated memory is still 86.0 MB. Free memory was 53.3 MB in the beginning and 53.3 MB in the end (delta: 33.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.80 ms. Allocated memory is still 86.0 MB. Free memory was 53.3 MB in the beginning and 49.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.58 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 47.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1146.79 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 47.0 MB in the beginning and 72.1 MB in the end (delta: -25.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 123987.41 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 71.5 MB in the beginning and 80.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 77.3 MB. Max. memory is 16.1 GB. * Witness Printer took 74.20 ms. Allocated memory is still 134.2 MB. Free memory was 80.0 MB in the beginning and 77.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. 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 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 123.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 123.3s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 316 SDtfs, 734 SDslu, 68 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 475]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=26431, NULL=1, NULL=26419, NULL=26432, methaneLevelCritical=0, retValue_acc=1, tmp=0, NULL=0, NULL=26427, NULL=0, retValue_acc=0, tmp___1=0, NULL=0, NULL=26440, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35eea295=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6501b488=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62ffb35a=0, NULL=26430, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dff08b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@192f7dc4=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7835797b=0, waterLevel=1, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=26429, NULL=0, retValue_acc=1, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=26415, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, tmp___0=0, NULL=26417, NULL=26436, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10b194a8=0, NULL=26428, NULL=26438, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@447e7e33=0, NULL=0, NULL=0, NULL=26434, NULL=26422, retValue_acc=0, NULL=26437, tmp___0=0, NULL=0, NULL=0, NULL=26439, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f7007e8=0, NULL=0, NULL=0, NULL=0, NULL=26435, tmp=0, NULL=26414, tmp___0=0, NULL=0, systemActive=1, NULL=26426, \result=1, NULL=0, NULL=0, NULL=26425, \result=0, NULL=0, NULL=26418, \result=0, NULL=26423, NULL=0, NULL=26424, NULL=26421, NULL=2, tmp___2=65, splverifierCounter=0, NULL=0, NULL=26420, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5364f7aa=0, NULL=0, NULL=26433, NULL=0, NULL=26416} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int waterLevel = 1; [L60] int methaneLevelCritical = 0; [L162] int cleanupTimeShifts = 4; [L267] int pumpRunning = 0; [L268] int systemActive = 1; [L760] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L241] int retValue_acc ; [L242] int tmp ; [L556] int retValue_acc ; [L559] retValue_acc = 1 [L560] return (retValue_acc); [L248] tmp = valid_product() [L250] COND TRUE \read(tmp) [L466] int splverifierCounter ; [L467] int tmp ; [L468] int tmp___0 ; [L469] int tmp___1 ; [L470] int tmp___2 ; [L473] splverifierCounter = 0 Loop: [L475] COND TRUE 1 [L477] COND TRUE splverifierCounter < 4 [L483] tmp = __VERIFIER_nondet_int() [L485] COND FALSE !(\read(tmp)) [L493] tmp___0 = __VERIFIER_nondet_int() [L495] COND FALSE !(\read(tmp___0)) [L503] tmp___2 = __VERIFIER_nondet_int() [L505] COND TRUE \read(tmp___2) [L275] COND FALSE !(\read(pumpRunning)) [L282] COND TRUE \read(systemActive) [L330] int tmp ; [L333] COND FALSE !(\read(pumpRunning)) [L304] int tmp ; [L307] COND TRUE ! pumpRunning [L427] int retValue_acc ; [L428] int tmp ; [L429] int tmp___0 ; [L139] int retValue_acc ; [L142] COND TRUE waterLevel < 2 [L143] retValue_acc = 1 [L144] return (retValue_acc); [L433] tmp = isHighWaterSensorDry() [L435] COND TRUE \read(tmp) [L436] tmp___0 = 0 [L440] retValue_acc = tmp___0 [L441] return (retValue_acc); [L309] tmp = isHighWaterLevel() [L311] COND FALSE !(\read(tmp)) [L566] int tmp ; [L567] int tmp___0 ; [L130] int retValue_acc ; [L133] retValue_acc = waterLevel [L134] return (retValue_acc); [L571] tmp = getWaterLevel() [L573] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...