./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/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 8d89cb30057b8721685c80693144eb2455c18c87 ............................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:14:32,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:14:32,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:14:32,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:14:32,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:14:32,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:14:32,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:14:32,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:14:32,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:14:32,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:14:32,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:14:32,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:14:32,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:14:32,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:14:32,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:14:32,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:14:32,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:14:32,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:14:32,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:14:32,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:14:32,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:14:32,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:14:32,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:14:32,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:14:32,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:14:32,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:14:32,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:14:32,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:14:32,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:14:32,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:14:32,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:14:32,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:14:32,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:14:32,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:14:32,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:14:32,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:14:32,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:14:32,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:14:32,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:14:32,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:14:32,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:14:32,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:14:32,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:14:32,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:14:32,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:14:32,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:14:32,629 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:14:32,629 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:14:32,630 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:14:32,630 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:14:32,630 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:14:32,630 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:14:32,631 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:14:32,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:14:32,632 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:14:32,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:14:32,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:14:32,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:14:32,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:14:32,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:14:32,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:14:32,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:14:32,633 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:14:32,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:14:32,634 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:14:32,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:14:32,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:14:32,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:14:32,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:14:32,635 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:14:32,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:14:32,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:14:32,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:14:32,636 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:14:32,637 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:14:32,638 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_557a47a9-a5e2-449d-b689-548f3e309359/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d89cb30057b8721685c80693144eb2455c18c87 [2020-11-29 22:14:32,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:14:32,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:14:32,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:14:32,941 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:14:32,942 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:14:32,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-11-29 22:14:33,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/data/6d8fc9e5c/8f44cd89722b4d569b3d25e20a2d14ca/FLAGf0a7d3212 [2020-11-29 22:14:33,597 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:14:33,598 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-11-29 22:14:33,625 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/data/6d8fc9e5c/8f44cd89722b4d569b3d25e20a2d14ca/FLAGf0a7d3212 [2020-11-29 22:14:33,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/data/6d8fc9e5c/8f44cd89722b4d569b3d25e20a2d14ca [2020-11-29 22:14:33,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:14:33,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:14:33,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:14:33,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:14:33,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:14:33,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:14:33" (1/1) ... [2020-11-29 22:14:33,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1e9179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:33, skipping insertion in model container [2020-11-29 22:14:33,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:14:33" (1/1) ... [2020-11-29 22:14:33,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:14:33,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:14:34,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:14:34,325 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:14:34,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:14:34,468 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:14:34,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34 WrapperNode [2020-11-29 22:14:34,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:14:34,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:14:34,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:14:34,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:14:34,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... [2020-11-29 22:14:34,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... [2020-11-29 22:14:34,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:14:34,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:14:34,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:14:34,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:14:34,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... [2020-11-29 22:14:34,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... [2020-11-29 22:14:34,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... [2020-11-29 22:14:34,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... [2020-11-29 22:14:34,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... [2020-11-29 22:14:34,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... [2020-11-29 22:14:34,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... [2020-11-29 22:14:34,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:14:34,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:14:34,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:14:34,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:14:34,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:14:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:14:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:14:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:14:34,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:14:35,972 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:14:35,973 INFO L298 CfgBuilder]: Removed 288 assume(true) statements. [2020-11-29 22:14:35,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:14:35 BoogieIcfgContainer [2020-11-29 22:14:35,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:14:35,976 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:14:35,976 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:14:35,980 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:14:35,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:14:35,981 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:14:33" (1/3) ... [2020-11-29 22:14:35,982 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@318b9bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:14:35, skipping insertion in model container [2020-11-29 22:14:35,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:14:35,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:14:34" (2/3) ... [2020-11-29 22:14:35,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@318b9bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:14:35, skipping insertion in model container [2020-11-29 22:14:35,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:14:35,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:14:35" (3/3) ... [2020-11-29 22:14:35,984 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-11-29 22:14:36,029 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:14:36,029 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:14:36,029 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:14:36,029 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:14:36,029 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:14:36,030 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:14:36,030 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:14:36,030 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:14:36,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states. [2020-11-29 22:14:36,079 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2020-11-29 22:14:36,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:14:36,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:14:36,088 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:14:36,088 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:36,088 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:14:36,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states. [2020-11-29 22:14:36,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2020-11-29 22:14:36,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:14:36,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:14:36,099 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:14:36,099 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:36,104 INFO L794 eck$LassoCheckResult]: Stem: 142#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 17#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 24#L764true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 33#L772true main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 132#L895true assume 0 != main_~tmp~10; 158#L872true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 25#L786-1true [2020-11-29 22:14:36,104 INFO L796 eck$LassoCheckResult]: Loop: 25#L786-1true assume !false; 44#L425true assume test_~splverifierCounter~0 < 4; 181#L426true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 189#L434true assume !(0 != test_~tmp~3); 191#L434-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 80#L444true assume !(0 != test_~tmp___0~0); 84#L444-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 143#L454true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 149#L462-1true assume !(0 != ~pumpRunning~0); 184#L500true assume !(0 != ~systemActive~0); 122#L507true havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~9, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~9;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 99#L953-1true __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~9 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 22#L786true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9); 25#L786-1true [2020-11-29 22:14:36,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:36,110 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 22:14:36,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:36,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510892576] [2020-11-29 22:14:36,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:36,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:36,454 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:36,490 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:14:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:36,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1666938226, now seen corresponding path program 1 times [2020-11-29 22:14:36,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:36,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388383892] [2020-11-29 22:14:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:14:36,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388383892] [2020-11-29 22:14:36,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:36,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:14:36,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469342436] [2020-11-29 22:14:36,564 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:14:36,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:36,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:14:36,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:14:36,585 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 3 states. [2020-11-29 22:14:36,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:36,695 INFO L93 Difference]: Finished difference Result 370 states and 552 transitions. [2020-11-29 22:14:36,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:36,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 370 states and 552 transitions. [2020-11-29 22:14:36,705 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 242 [2020-11-29 22:14:36,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 370 states to 356 states and 537 transitions. [2020-11-29 22:14:36,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2020-11-29 22:14:36,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2020-11-29 22:14:36,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 537 transitions. [2020-11-29 22:14:36,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:14:36,722 INFO L691 BuchiCegarLoop]: Abstraction has 356 states and 537 transitions. [2020-11-29 22:14:36,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 537 transitions. [2020-11-29 22:14:36,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2020-11-29 22:14:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-11-29 22:14:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 534 transitions. [2020-11-29 22:14:36,773 INFO L714 BuchiCegarLoop]: Abstraction has 354 states and 534 transitions. [2020-11-29 22:14:36,774 INFO L594 BuchiCegarLoop]: Abstraction has 354 states and 534 transitions. [2020-11-29 22:14:36,774 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:14:36,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 354 states and 534 transitions. [2020-11-29 22:14:36,778 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2020-11-29 22:14:36,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:14:36,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:14:36,779 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:14:36,780 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:36,780 INFO L794 eck$LassoCheckResult]: Stem: 742#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 602#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 603#L764 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 610#L772 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 621#L895 assume 0 != main_~tmp~10; 738#L872 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 761#L786-1 [2020-11-29 22:14:36,780 INFO L796 eck$LassoCheckResult]: Loop: 761#L786-1 assume !false; 789#L425 assume test_~splverifierCounter~0 < 4; 790#L426 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 782#L434 assume !(0 != test_~tmp~3); 737#L434-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 688#L444 assume !(0 != test_~tmp___0~0); 629#L444-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 693#L454 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 744#L462-1 assume !(0 != ~pumpRunning~0); 807#L500 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 805#L584 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 806#L558-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 798#L532-3 assume !(0 == ~pumpRunning~0); 793#L507 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~9, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~9;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 792#L953-1 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~9 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 791#L786 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9); 761#L786-1 [2020-11-29 22:14:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:36,781 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 22:14:36,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:36,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182659728] [2020-11-29 22:14:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:36,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:36,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:36,971 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:14:36,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:36,973 INFO L82 PathProgramCache]: Analyzing trace with hash 558894456, now seen corresponding path program 1 times [2020-11-29 22:14:36,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:36,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764043141] [2020-11-29 22:14:36,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:36,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:14:36,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764043141] [2020-11-29 22:14:36,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:36,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:14:36,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50512502] [2020-11-29 22:14:36,991 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:14:36,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:36,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:14:36,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:14:36,992 INFO L87 Difference]: Start difference. First operand 354 states and 534 transitions. cyclomatic complexity: 183 Second operand 3 states. [2020-11-29 22:14:37,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:37,191 INFO L93 Difference]: Finished difference Result 365 states and 514 transitions. [2020-11-29 22:14:37,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:37,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 365 states and 514 transitions. [2020-11-29 22:14:37,199 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2020-11-29 22:14:37,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 365 states to 365 states and 514 transitions. [2020-11-29 22:14:37,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 365 [2020-11-29 22:14:37,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 365 [2020-11-29 22:14:37,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 365 states and 514 transitions. [2020-11-29 22:14:37,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:14:37,221 INFO L691 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2020-11-29 22:14:37,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states and 514 transitions. [2020-11-29 22:14:37,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2020-11-29 22:14:37,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-11-29 22:14:37,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 514 transitions. [2020-11-29 22:14:37,250 INFO L714 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2020-11-29 22:14:37,250 INFO L594 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2020-11-29 22:14:37,250 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:14:37,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 514 transitions. [2020-11-29 22:14:37,254 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2020-11-29 22:14:37,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:14:37,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:14:37,259 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:14:37,259 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:37,259 INFO L794 eck$LassoCheckResult]: Stem: 1446#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1322#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 1323#L764 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1330#L772 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 1341#L895 assume 0 != main_~tmp~10; 1443#L872 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1328#L786-1 [2020-11-29 22:14:37,260 INFO L796 eck$LassoCheckResult]: Loop: 1328#L786-1 assume !false; 1331#L425 assume test_~splverifierCounter~0 < 4; 1354#L426 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 1472#L434 assume !(0 != test_~tmp~3); 1441#L434-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 1395#L444 assume !(0 != test_~tmp___0~0); 1346#L444-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 1447#L454 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1448#L462-1 assume !(0 != ~pumpRunning~0); 1473#L500 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1474#L584 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 1535#L558-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1534#L532-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1532#L993-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1529#L998-3 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 1526#L686-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1523#L686-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1521#L692-3 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 1519#L536-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1433#L507 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~9, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~9;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1434#L953-1 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~9 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 1327#L786 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9); 1328#L786-1 [2020-11-29 22:14:37,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:37,263 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 22:14:37,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:37,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156621279] [2020-11-29 22:14:37,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:37,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:37,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:37,412 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:14:37,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:37,413 INFO L82 PathProgramCache]: Analyzing trace with hash 222495876, now seen corresponding path program 1 times [2020-11-29 22:14:37,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:37,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357077082] [2020-11-29 22:14:37,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:37,421 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:37,427 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:37,433 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:14:37,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:37,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1475801002, now seen corresponding path program 1 times [2020-11-29 22:14:37,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:37,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737872859] [2020-11-29 22:14:37,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:37,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:14:37,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:14:37,602 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:14:37,746 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 22:15:57,879 WARN L193 SmtUtils]: Spent 1.33 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 22:17:01,278 WARN L193 SmtUtils]: Spent 1.06 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 22:17:01,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:17:01 BoogieIcfgContainer [2020-11-29 22:17:01,562 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:17:01,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:17:01,565 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:17:01,565 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:17:01,566 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:14:35" (3/4) ... [2020-11-29 22:17:01,570 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:17:01,636 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_557a47a9-a5e2-449d-b689-548f3e309359/bin/uautomizer/witness.graphml [2020-11-29 22:17:01,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:17:01,639 INFO L168 Benchmark]: Toolchain (without parser) took 147745.26 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 59.2 MB in the beginning and 89.2 MB in the end (delta: -30.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:01,639 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 90.2 MB. Free memory was 49.2 MB in the beginning and 49.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:17:01,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.24 ms. Allocated memory is still 90.2 MB. Free memory was 58.9 MB in the beginning and 56.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:01,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.77 ms. Allocated memory is still 90.2 MB. Free memory was 56.8 MB in the beginning and 52.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:01,641 INFO L168 Benchmark]: Boogie Preprocessor took 92.60 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 48.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:01,642 INFO L168 Benchmark]: RCFGBuilder took 1303.83 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 48.4 MB in the beginning and 66.1 MB in the end (delta: -17.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:01,643 INFO L168 Benchmark]: BuchiAutomizer took 145586.39 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 65.4 MB in the beginning and 92.2 MB in the end (delta: -26.8 MB). Peak memory consumption was 65.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:01,643 INFO L168 Benchmark]: Witness Printer took 73.39 ms. Allocated memory is still 132.1 MB. Free memory was 92.2 MB in the beginning and 89.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:01,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 90.2 MB. Free memory was 49.2 MB in the beginning and 49.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 575.24 ms. Allocated memory is still 90.2 MB. Free memory was 58.9 MB in the beginning and 56.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.77 ms. Allocated memory is still 90.2 MB. Free memory was 56.8 MB in the beginning and 52.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.60 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 48.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1303.83 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 48.4 MB in the beginning and 66.1 MB in the end (delta: -17.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 145586.39 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 65.4 MB in the beginning and 92.2 MB in the end (delta: -26.8 MB). Peak memory consumption was 65.0 MB. Max. memory is 16.1 GB. * Witness Printer took 73.39 ms. Allocated memory is still 132.1 MB. Free memory was 92.2 MB in the beginning and 89.2 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 365 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 145.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 144.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 365 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 480 SDtfs, 411 SDslu, 344 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 424]: 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=8511, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37c077fc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66438ffe=72, NULL=8520, NULL=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=8499, NULL=0, NULL=8515, NULL=8506, cleanupTimeShifts=4, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e1c0af9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72fc6a7a=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cc2dab8=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=8516, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fe3a50f=0, \result=1, NULL=8501, NULL=0, tmp=0, NULL=0, NULL=8497, NULL=0, tmp=1, NULL=0, NULL=8510, NULL=8496, NULL=8522, NULL=8503, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b4b4c1d=0, NULL=0, NULL=0, tmp=0, NULL=8495, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7639dd9c=0, NULL=0, NULL=8502, NULL=8517, retValue_acc=0, NULL=8508, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eacd9bc=0, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=8494, tmp=0, NULL=8500, NULL=8514, tmp___0=0, NULL=8504, NULL=0, NULL=0, NULL=0, systemActive=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=8518, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@516b6486=0, NULL=0, NULL=8512, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41b7fea6=0, NULL=8519, NULL=8509, retValue_acc=1, tmp___2=72, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=8498, NULL=8521, NULL=8505, NULL=8513} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int pumpRunning = 0; [L493] int systemActive = 1; [L813] int cleanupTimeShifts = 4; [L910] int waterLevel = 1; [L911] int methaneLevelCritical = 0; [L886] int retValue_acc ; [L887] int tmp ; [L768] int retValue_acc ; [L771] retValue_acc = 1 [L772] return (retValue_acc); [L893] tmp = valid_product() [L895] COND TRUE \read(tmp) [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 Loop: [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND FALSE !(\read(tmp)) [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L734] systemActive = 1 [L500] COND FALSE !(\read(pumpRunning)) [L507] COND TRUE \read(systemActive) [L581] int tmp ; [L584] COND FALSE !(\read(pumpRunning)) [L555] int tmp ; [L558] COND FALSE !(\read(pumpRunning)) [L529] int tmp ; [L532] COND TRUE ! pumpRunning [L678] int retValue_acc ; [L679] int tmp ; [L680] int tmp___0 ; [L990] int retValue_acc ; [L993] COND TRUE waterLevel < 2 [L994] retValue_acc = 1 [L995] return (retValue_acc); [L684] tmp = isHighWaterSensorDry() [L686] COND TRUE \read(tmp) [L687] tmp___0 = 0 [L691] retValue_acc = tmp___0 [L692] return (retValue_acc); [L534] tmp = isHighWaterLevel() [L536] COND FALSE !(\read(tmp)) [L779] int tmp ; [L780] int tmp___0 ; [L949] int retValue_acc ; [L952] retValue_acc = methaneLevelCritical [L953] return (retValue_acc); [L784] tmp = isMethaneLevelCritical() [L786] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...