./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.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_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/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 0c528157ad3ccc512d501b1e66086beae537118a ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:00:31,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:00:31,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:00:31,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:00:31,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:00:31,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:00:31,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:00:31,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:00:31,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:00:31,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:00:31,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:00:31,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:00:31,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:00:31,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:00:31,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:00:31,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:00:31,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:00:31,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:00:31,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:00:31,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:00:31,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:00:31,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:00:31,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:00:31,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:00:31,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:00:31,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:00:31,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:00:31,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:00:31,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:00:31,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:00:31,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:00:31,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:00:31,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:00:31,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:00:31,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:00:31,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:00:31,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:00:31,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:00:31,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:00:31,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:00:31,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:00:31,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:00:31,363 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:00:31,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:00:31,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:00:31,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:00:31,366 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:00:31,367 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:00:31,367 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:00:31,367 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:00:31,368 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:00:31,368 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:00:31,369 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:00:31,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:00:31,370 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:00:31,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:00:31,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:00:31,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:00:31,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:00:31,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:00:31,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:00:31,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:00:31,372 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:00:31,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:00:31,373 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:00:31,373 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:00:31,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:00:31,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:00:31,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:00:31,375 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:00:31,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:00:31,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:00:31,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:00:31,378 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:00:31,379 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:00:31,379 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_fac2a240-9327-44c0-8b60-7fd772005dfd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c528157ad3ccc512d501b1e66086beae537118a [2020-11-30 00:00:31,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:00:31,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:00:31,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:00:31,759 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:00:31,760 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:00:31,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2020-11-30 00:00:31,868 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/data/503a15651/274460e422a849be9fea73e1ab270af1/FLAGe41e5b3eb [2020-11-30 00:00:32,562 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:00:32,563 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2020-11-30 00:00:32,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/data/503a15651/274460e422a849be9fea73e1ab270af1/FLAGe41e5b3eb [2020-11-30 00:00:32,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/data/503a15651/274460e422a849be9fea73e1ab270af1 [2020-11-30 00:00:32,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:00:32,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:00:32,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:32,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:00:32,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:00:32,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:32" (1/1) ... [2020-11-30 00:00:32,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5057a3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:32, skipping insertion in model container [2020-11-30 00:00:32,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:32" (1/1) ... [2020-11-30 00:00:32,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:00:32,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:00:33,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:33,340 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:00:33,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:33,519 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:00:33,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33 WrapperNode [2020-11-30 00:00:33,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:33,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:33,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:00:33,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:00:33,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:33,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:00:33,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:00:33,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:00:33,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:00:33,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:00:33,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:00:33,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:00:33,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/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 00:00:33,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:00:33,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:00:33,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:00:33,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:00:35,023 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:00:35,025 INFO L298 CfgBuilder]: Removed 200 assume(true) statements. [2020-11-30 00:00:35,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:35 BoogieIcfgContainer [2020-11-30 00:00:35,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:00:35,031 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:00:35,031 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:00:35,035 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:00:35,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:35,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:00:32" (1/3) ... [2020-11-30 00:00:35,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@127fb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:35, skipping insertion in model container [2020-11-30 00:00:35,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:35,040 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (2/3) ... [2020-11-30 00:00:35,040 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@127fb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:35, skipping insertion in model container [2020-11-30 00:00:35,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:35,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:35" (3/3) ... [2020-11-30 00:00:35,043 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2020-11-30 00:00:35,105 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:00:35,105 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:00:35,106 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:00:35,106 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:00:35,106 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:00:35,106 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:00:35,106 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:00:35,107 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:00:35,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states. [2020-11-30 00:00:35,203 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-30 00:00:35,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:35,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:35,213 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:35,214 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:35,214 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:00:35,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states. [2020-11-30 00:00:35,223 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-30 00:00:35,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:35,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:35,225 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:35,225 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:35,232 INFO L794 eck$LassoCheckResult]: Stem: 112#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 6#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 13#L943true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 16#L951true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 118#L132true assume 0 != main_~tmp~0; 59#L105true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 78#L157-1true [2020-11-30 00:00:35,233 INFO L796 eck$LassoCheckResult]: Loop: 78#L157-1true assume !false; 56#L865true assume test_~splverifierCounter~0 < 4; 3#L866true test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 17#L874true assume !(0 != test_~tmp~9); 8#L874-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 62#L884true assume !(0 != test_~tmp___0~2); 64#L884-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 119#L894true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 124#L902-2true assume !(0 != ~pumpRunning~0); 111#L564true assume !(0 != ~systemActive~0); 30#L571true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 34#L835true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 81#L157true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 78#L157-1true [2020-11-30 00:00:35,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:35,240 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:00:35,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:35,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516781499] [2020-11-30 00:00:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:35,534 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:35,722 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:35,804 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:35,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:35,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1678359099, now seen corresponding path program 1 times [2020-11-30 00:00:35,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:35,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092998597] [2020-11-30 00:00:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:35,900 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 00:00:35,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092998597] [2020-11-30 00:00:35,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:35,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:35,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099189658] [2020-11-30 00:00:35,908 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:00:35,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:35,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:35,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:35,929 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-11-30 00:00:36,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:36,004 INFO L93 Difference]: Finished difference Result 126 states and 179 transitions. [2020-11-30 00:00:36,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:36,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 179 transitions. [2020-11-30 00:00:36,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2020-11-30 00:00:36,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 119 states and 171 transitions. [2020-11-30 00:00:36,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2020-11-30 00:00:36,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2020-11-30 00:00:36,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 171 transitions. [2020-11-30 00:00:36,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:00:36,046 INFO L691 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2020-11-30 00:00:36,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 171 transitions. [2020-11-30 00:00:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-11-30 00:00:36,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-30 00:00:36,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2020-11-30 00:00:36,096 INFO L714 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2020-11-30 00:00:36,097 INFO L594 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2020-11-30 00:00:36,097 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:00:36,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 171 transitions. [2020-11-30 00:00:36,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2020-11-30 00:00:36,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:36,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:36,107 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:36,107 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:36,108 INFO L794 eck$LassoCheckResult]: Stem: 379#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 270#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 271#L943 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 286#L951 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 290#L132 assume 0 != main_~tmp~0; 346#L105 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 303#L157-1 [2020-11-30 00:00:36,108 INFO L796 eck$LassoCheckResult]: Loop: 303#L157-1 assume !false; 344#L865 assume test_~splverifierCounter~0 < 4; 264#L866 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 265#L874 assume !(0 != test_~tmp~9); 269#L874-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 275#L884 assume !(0 != test_~tmp___0~2); 349#L884-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 353#L894 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 381#L902-2 assume !(0 != ~pumpRunning~0); 326#L564 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 369#L622 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 276#L596-1 assume !(0 == ~pumpRunning~0); 274#L571 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 309#L835 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 314#L157 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 303#L157-1 [2020-11-30 00:00:36,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:36,110 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:00:36,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:36,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422603376] [2020-11-30 00:00:36,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:36,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:36,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:36,359 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:36,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:36,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1075674041, now seen corresponding path program 1 times [2020-11-30 00:00:36,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:36,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127930872] [2020-11-30 00:00:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:36,414 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 00:00:36,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127930872] [2020-11-30 00:00:36,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:36,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:36,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488993694] [2020-11-30 00:00:36,415 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:00:36,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:36,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:36,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:36,417 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. cyclomatic complexity: 54 Second operand 3 states. [2020-11-30 00:00:36,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:36,583 INFO L93 Difference]: Finished difference Result 160 states and 219 transitions. [2020-11-30 00:00:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:36,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 219 transitions. [2020-11-30 00:00:36,588 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2020-11-30 00:00:36,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 219 transitions. [2020-11-30 00:00:36,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2020-11-30 00:00:36,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2020-11-30 00:00:36,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 219 transitions. [2020-11-30 00:00:36,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:00:36,594 INFO L691 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2020-11-30 00:00:36,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 219 transitions. [2020-11-30 00:00:36,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-11-30 00:00:36,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-11-30 00:00:36,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 219 transitions. [2020-11-30 00:00:36,606 INFO L714 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2020-11-30 00:00:36,606 INFO L594 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2020-11-30 00:00:36,606 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:00:36,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 219 transitions. [2020-11-30 00:00:36,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2020-11-30 00:00:36,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:36,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:36,610 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:36,610 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 00:00:36,611 INFO L794 eck$LassoCheckResult]: Stem: 666#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 558#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 559#L943 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 571#L951 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 576#L132 assume 0 != main_~tmp~0; 634#L105 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 591#L157-1 [2020-11-30 00:00:36,612 INFO L796 eck$LassoCheckResult]: Loop: 591#L157-1 assume !false; 632#L865 assume test_~splverifierCounter~0 < 4; 549#L866 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 550#L874 assume !(0 != test_~tmp~9); 554#L874-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 560#L884 assume !(0 != test_~tmp___0~2); 637#L884-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 641#L894 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 669#L902-2 assume !(0 != ~pumpRunning~0); 665#L564 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 658#L622 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 561#L596-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 562#L843-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 635#L848-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 630#L741-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 631#L741-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 610#L747-1 processEnvironment__wrappee__methaneQuery_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret45;havoc processEnvironment__wrappee__methaneQuery_#t~ret45; 611#L600-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 590#L571 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 597#L835 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 602#L157 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 591#L157-1 [2020-11-30 00:00:36,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:36,612 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:00:36,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:36,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795446407] [2020-11-30 00:00:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:36,684 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:36,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:36,804 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:36,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:36,806 INFO L82 PathProgramCache]: Analyzing trace with hash -515194541, now seen corresponding path program 1 times [2020-11-30 00:00:36,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:36,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906974868] [2020-11-30 00:00:36,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:36,818 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:36,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:36,831 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:36,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:36,832 INFO L82 PathProgramCache]: Analyzing trace with hash -59123347, now seen corresponding path program 1 times [2020-11-30 00:00:36,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:36,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508298701] [2020-11-30 00:00:36,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:36,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:36,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:36,990 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:37,193 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 00:02:11,741 WARN L193 SmtUtils]: Spent 1.57 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:03:16,745 WARN L193 SmtUtils]: Spent 1.08 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:03:17,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:03:17 BoogieIcfgContainer [2020-11-30 00:03:17,475 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:03:17,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:03:17,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:03:17,490 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:03:17,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:35" (3/4) ... [2020-11-30 00:03:17,494 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:03:17,649 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fac2a240-9327-44c0-8b60-7fd772005dfd/bin/uautomizer/witness.graphml [2020-11-30 00:03:17,649 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:03:17,651 INFO L168 Benchmark]: Toolchain (without parser) took 164768.89 ms. Allocated memory was 94.4 MB in the beginning and 159.4 MB in the end (delta: 65.0 MB). Free memory was 64.0 MB in the beginning and 111.8 MB in the end (delta: -47.8 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:17,652 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 94.4 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:03:17,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.74 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 62.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:17,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.18 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 58.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:17,655 INFO L168 Benchmark]: Boogie Preprocessor took 78.72 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 55.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:17,656 INFO L168 Benchmark]: RCFGBuilder took 1297.86 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 55.2 MB in the beginning and 62.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:17,658 INFO L168 Benchmark]: BuchiAutomizer took 162443.67 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 62.3 MB in the beginning and 114.8 MB in the end (delta: -52.5 MB). Peak memory consumption was 58.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:17,659 INFO L168 Benchmark]: Witness Printer took 173.99 ms. Allocated memory is still 159.4 MB. Free memory was 114.8 MB in the beginning and 111.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:17,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 94.4 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 628.74 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 62.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 127.18 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 58.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.72 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 55.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1297.86 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 55.2 MB in the beginning and 62.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 162443.67 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 62.3 MB in the beginning and 114.8 MB in the end (delta: -52.5 MB). Peak memory consumption was 58.9 MB. Max. memory is 16.1 GB. * Witness Printer took 173.99 ms. Allocated memory is still 159.4 MB. Free memory was 114.8 MB in the beginning and 111.8 MB in the end (delta: 3.0 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 3 locations. The remainder module has 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 162.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 161.7s. Construction of modules took 0.1s. 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 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 332 SDtfs, 304 SDslu, 57 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 864]: 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=1, NULL=22390, NULL=0, NULL=0, NULL=0, NULL=22391, methaneLevelCritical=0, retValue_acc=1, NULL=22396, NULL=0, tmp___1=0, tmp=0, NULL=22403, retValue_acc=0, NULL=0, NULL=22386, cleanupTimeShifts=4, NULL=22392, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e3b752=0, waterLevel=1, NULL=0, NULL=0, NULL=22405, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bffebab=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d083a62=0, NULL=22402, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7748ae79=0, \result=1, tmp=1, NULL=0, NULL=22380, retValue_acc=1, NULL=0, tmp=1, NULL=0, tmp___0=0, NULL=22384, NULL=22388, head=0, NULL=0, tmp=0, NULL=22397, NULL=0, NULL=0, NULL=0, NULL=22401, tmp=0, NULL=0, retValue_acc=0, NULL=0, NULL=22395, NULL=22406, NULL=22394, tmp___0=0, NULL=0, NULL=22393, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b7a9736=0, NULL=0, tmp___0=0, NULL=22400, NULL=22398, NULL=22387, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59e87078=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e69f8f4=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65658601=0, NULL=0, NULL=0, systemActive=1, NULL=22382, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70b7c100=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=22379, \result=0, NULL=22383, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9f667ce=0, NULL=22389, NULL=22381, tmp___2=62, splverifierCounter=0, NULL=0, NULL=22399, NULL=22385, NULL=22404} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L557] int pumpRunning = 0; [L558] int systemActive = 1; [L760] int waterLevel = 1; [L761] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L947] int retValue_acc ; [L950] retValue_acc = 1 [L951] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L855] int splverifierCounter ; [L856] int tmp ; [L857] int tmp___0 ; [L858] int tmp___1 ; [L859] int tmp___2 ; [L862] splverifierCounter = 0 Loop: [L864] COND TRUE 1 [L866] COND TRUE splverifierCounter < 4 [L872] tmp = __VERIFIER_nondet_int() [L874] COND FALSE !(\read(tmp)) [L882] tmp___0 = __VERIFIER_nondet_int() [L884] COND FALSE !(\read(tmp___0)) [L892] tmp___2 = __VERIFIER_nondet_int() [L894] COND TRUE \read(tmp___2) [L755] systemActive = 1 [L564] COND FALSE !(\read(pumpRunning)) [L571] COND TRUE \read(systemActive) [L619] int tmp ; [L622] COND FALSE !(\read(pumpRunning)) [L593] int tmp ; [L596] COND TRUE ! pumpRunning [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; [L840] int retValue_acc ; [L843] COND TRUE waterLevel < 2 [L844] retValue_acc = 1 [L845] return (retValue_acc); [L739] tmp = isHighWaterSensorDry() [L741] COND TRUE \read(tmp) [L742] tmp___0 = 0 [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); [L598] tmp = isHighWaterLevel() [L600] COND FALSE !(\read(tmp)) [L150] int tmp ; [L151] int tmp___0 ; [L831] int retValue_acc ; [L834] retValue_acc = waterLevel [L835] return (retValue_acc); [L155] tmp = getWaterLevel() [L157] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...