./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.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_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/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 ce5436eb539a2a8a335e304ce49accfb71554984 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:10:51,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:10:51,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:10:51,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:10:51,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:10:51,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:10:51,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:10:51,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:10:51,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:10:51,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:10:51,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:10:51,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:10:51,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:10:51,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:10:51,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:10:51,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:10:51,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:10:51,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:10:51,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:10:51,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:10:51,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:10:51,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:10:51,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:10:51,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:10:51,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:10:51,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:10:51,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:10:51,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:10:51,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:10:51,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:10:51,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:10:51,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:10:51,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:10:51,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:10:51,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:10:51,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:10:51,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:10:51,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:10:51,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:10:51,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:10:51,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:10:51,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:10:51,705 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:10:51,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:10:51,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:10:51,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:10:51,708 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:10:51,708 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:10:51,709 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:10:51,712 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:10:51,713 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:10:51,713 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:10:51,714 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:10:51,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:10:51,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:10:51,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:10:51,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:10:51,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:10:51,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:10:51,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:10:51,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:10:51,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:10:51,718 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:10:51,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:10:51,718 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:10:51,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:10:51,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:10:51,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:10:51,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:10:51,720 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:10:51,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:10:51,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:10:51,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:10:51,723 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:10:51,724 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:10:51,726 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_14029484-c982-47ed-bdab-9b1e1b17e416/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce5436eb539a2a8a335e304ce49accfb71554984 [2020-11-30 00:10:52,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:10:52,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:10:52,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:10:52,088 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:10:52,090 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:10:52,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2020-11-30 00:10:52,176 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/data/78d024207/7e799985d86348cf9d65a3219d61d649/FLAGd4b7f7919 [2020-11-30 00:10:52,860 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:10:52,861 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2020-11-30 00:10:52,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/data/78d024207/7e799985d86348cf9d65a3219d61d649/FLAGd4b7f7919 [2020-11-30 00:10:53,104 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/data/78d024207/7e799985d86348cf9d65a3219d61d649 [2020-11-30 00:10:53,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:10:53,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:10:53,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:53,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:10:53,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:10:53,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af9fc8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53, skipping insertion in model container [2020-11-30 00:10:53,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:10:53,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:10:53,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:53,530 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:10:53,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:53,659 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:10:53,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53 WrapperNode [2020-11-30 00:10:53,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:53,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:53,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:10:53,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:10:53,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:53,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:10:53,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:10:53,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:10:53,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:10:53,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:10:53,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:10:53,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:10:53,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/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 00:10:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:10:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:10:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:10:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:10:55,011 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:10:55,011 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-11-30 00:10:55,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:55 BoogieIcfgContainer [2020-11-30 00:10:55,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:10:55,015 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:10:55,016 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:10:55,019 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:10:55,020 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:10:55,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:10:53" (1/3) ... [2020-11-30 00:10:55,022 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@434c1d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:10:55, skipping insertion in model container [2020-11-30 00:10:55,023 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:10:55,023 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (2/3) ... [2020-11-30 00:10:55,023 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@434c1d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:10:55, skipping insertion in model container [2020-11-30 00:10:55,024 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:10:55,024 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:55" (3/3) ... [2020-11-30 00:10:55,026 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2020-11-30 00:10:55,080 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:10:55,080 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:10:55,081 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:10:55,081 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:10:55,081 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:10:55,081 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:10:55,082 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:10:55,082 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:10:55,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2020-11-30 00:10:55,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-30 00:10:55,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:10:55,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:10:55,140 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:10:55,140 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:10:55,141 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:10:55,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2020-11-30 00:10:55,148 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-30 00:10:55,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:10:55,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:10:55,150 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:10:55,150 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:10:55,157 INFO L794 eck$LassoCheckResult]: Stem: 42#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 13#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 18#L76true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 11#L84true main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 51#L579true assume 0 != main_~tmp~4; 9#L555true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 59#L107-1true [2020-11-30 00:10:55,158 INFO L796 eck$LassoCheckResult]: Loop: 59#L107-1true assume !false; 68#L697true assume test_~splverifierCounter~0 < 4; 29#L698true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 35#L706true assume !(0 != test_~tmp~5); 37#L706-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 7#L716true assume !(0 != test_~tmp___0~1); 10#L716-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 73#L726true assume 0 != test_~tmp___2~0; 47#L732-1true assume !(0 != ~pumpRunning~0); 66#L762true assume !(0 != ~systemActive~0); 55#L769true havoc __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 12#L639true __utac_acc__Specification3_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 70#L101true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 59#L107-1true [2020-11-30 00:10:55,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:55,167 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:10:55,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:55,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161344190] [2020-11-30 00:10:55,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:55,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:55,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:55,692 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:55,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:55,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095042, now seen corresponding path program 1 times [2020-11-30 00:10:55,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:55,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511273910] [2020-11-30 00:10:55,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:55,703 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:55,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:55,715 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:55,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:55,717 INFO L82 PathProgramCache]: Analyzing trace with hash 41183896, now seen corresponding path program 1 times [2020-11-30 00:10:55,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:55,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113196470] [2020-11-30 00:10:55,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:55,886 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 00:10:55,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113196470] [2020-11-30 00:10:55,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:55,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:10:55,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258081953] [2020-11-30 00:10:56,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:56,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:10:56,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:10:56,032 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 6 states. [2020-11-30 00:10:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:56,366 INFO L93 Difference]: Finished difference Result 210 states and 291 transitions. [2020-11-30 00:10:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:10:56,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 291 transitions. [2020-11-30 00:10:56,386 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 133 [2020-11-30 00:10:56,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 189 states and 270 transitions. [2020-11-30 00:10:56,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2020-11-30 00:10:56,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2020-11-30 00:10:56,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 270 transitions. [2020-11-30 00:10:56,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:10:56,413 INFO L691 BuchiCegarLoop]: Abstraction has 189 states and 270 transitions. [2020-11-30 00:10:56,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 270 transitions. [2020-11-30 00:10:56,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 120. [2020-11-30 00:10:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-30 00:10:56,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2020-11-30 00:10:56,450 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2020-11-30 00:10:56,450 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2020-11-30 00:10:56,450 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:10:56,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2020-11-30 00:10:56,454 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2020-11-30 00:10:56,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:10:56,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:10:56,455 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:10:56,455 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:10:56,455 INFO L794 eck$LassoCheckResult]: Stem: 360#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 328#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 329#L76 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 324#L84 main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 325#L579 assume 0 != main_~tmp~4; 321#L555 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 322#L107-1 [2020-11-30 00:10:56,456 INFO L796 eck$LassoCheckResult]: Loop: 322#L107-1 assume !false; 374#L697 assume test_~splverifierCounter~0 < 4; 346#L698 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 347#L706 assume !(0 != test_~tmp~5); 342#L706-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 316#L716 assume !(0 != test_~tmp___0~1); 317#L716-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 323#L726 assume 0 != test_~tmp___2~0; 364#L732-1 assume !(0 != ~pumpRunning~0); 366#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 367#L794 assume !(0 != ~pumpRunning~0); 359#L769 havoc __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 326#L639 __utac_acc__Specification3_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 327#L101 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 322#L107-1 [2020-11-30 00:10:56,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:56,457 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:10:56,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:56,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802393464] [2020-11-30 00:10:56,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:56,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:56,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:56,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:56,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:56,596 INFO L82 PathProgramCache]: Analyzing trace with hash -353331282, now seen corresponding path program 1 times [2020-11-30 00:10:56,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:56,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193020567] [2020-11-30 00:10:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:56,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:56,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:56,634 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:56,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:56,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708244, now seen corresponding path program 1 times [2020-11-30 00:10:56,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:56,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000635501] [2020-11-30 00:10:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:56,715 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 00:10:56,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000635501] [2020-11-30 00:10:56,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:56,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:10:56,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752492321] [2020-11-30 00:10:56,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:56,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:10:56,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:10:56,800 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand 5 states. [2020-11-30 00:10:57,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:57,013 INFO L93 Difference]: Finished difference Result 397 states and 578 transitions. [2020-11-30 00:10:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:10:57,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 578 transitions. [2020-11-30 00:10:57,024 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 294 [2020-11-30 00:10:57,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 397 states and 578 transitions. [2020-11-30 00:10:57,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 397 [2020-11-30 00:10:57,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 397 [2020-11-30 00:10:57,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 397 states and 578 transitions. [2020-11-30 00:10:57,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:10:57,043 INFO L691 BuchiCegarLoop]: Abstraction has 397 states and 578 transitions. [2020-11-30 00:10:57,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states and 578 transitions. [2020-11-30 00:10:57,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 234. [2020-11-30 00:10:57,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-11-30 00:10:57,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 328 transitions. [2020-11-30 00:10:57,070 INFO L714 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2020-11-30 00:10:57,070 INFO L594 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2020-11-30 00:10:57,070 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:10:57,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 328 transitions. [2020-11-30 00:10:57,073 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 168 [2020-11-30 00:10:57,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:10:57,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:10:57,074 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:10:57,075 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:10:57,075 INFO L794 eck$LassoCheckResult]: Stem: 901#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 863#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 864#L76 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 859#L84 main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 860#L579 assume 0 != main_~tmp~4; 856#L555 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 857#L107-1 [2020-11-30 00:10:57,075 INFO L796 eck$LassoCheckResult]: Loop: 857#L107-1 assume !false; 981#L697 assume test_~splverifierCounter~0 < 4; 982#L698 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 891#L706 assume !(0 != test_~tmp~5); 876#L706-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 851#L716 assume !(0 != test_~tmp___0~1); 852#L716-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 858#L726 assume 0 != test_~tmp___2~0; 905#L732-1 assume !(0 != ~pumpRunning~0); 1018#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 910#L794 assume !(0 != ~pumpRunning~0); 900#L769 havoc __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 919#L639 __utac_acc__Specification3_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 936#L101 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 937#L671 __utac_acc__Specification3_spec__1_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret9;havoc __utac_acc__Specification3_spec__1_#t~ret9; 983#L107 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 857#L107-1 [2020-11-30 00:10:57,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:57,076 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:10:57,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:57,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99917092] [2020-11-30 00:10:57,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:57,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:57,169 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:57,181 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:57,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:57,181 INFO L82 PathProgramCache]: Analyzing trace with hash -248939422, now seen corresponding path program 1 times [2020-11-30 00:10:57,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:57,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170337511] [2020-11-30 00:10:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:57,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:57,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:57,198 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:57,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:57,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1621214200, now seen corresponding path program 1 times [2020-11-30 00:10:57,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:57,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029605342] [2020-11-30 00:10:57,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:57,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:57,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:57,318 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:29,258 WARN L193 SmtUtils]: Spent 1.53 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:13:32,372 WARN L193 SmtUtils]: Spent 1.05 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:13:32,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:13:32 BoogieIcfgContainer [2020-11-30 00:13:32,642 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:13:32,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:13:32,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:13:32,643 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:13:32,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:55" (3/4) ... [2020-11-30 00:13:32,646 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:13:32,702 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_14029484-c982-47ed-bdab-9b1e1b17e416/bin/uautomizer/witness.graphml [2020-11-30 00:13:32,702 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:13:32,703 INFO L168 Benchmark]: Toolchain (without parser) took 159593.42 ms. Allocated memory was 104.9 MB in the beginning and 197.1 MB in the end (delta: 92.3 MB). Free memory was 77.2 MB in the beginning and 101.7 MB in the end (delta: -24.5 MB). Peak memory consumption was 67.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:32,704 INFO L168 Benchmark]: CDTParser took 0.96 ms. Allocated memory is still 104.9 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:13:32,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.61 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 69.6 MB in the end (delta: 7.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:32,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.37 ms. Allocated memory is still 104.9 MB. Free memory was 69.6 MB in the beginning and 66.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:32,705 INFO L168 Benchmark]: Boogie Preprocessor took 87.31 ms. Allocated memory is still 104.9 MB. Free memory was 66.5 MB in the beginning and 64.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:32,706 INFO L168 Benchmark]: RCFGBuilder took 1156.65 ms. Allocated memory was 104.9 MB in the beginning and 157.3 MB in the end (delta: 52.4 MB). Free memory was 64.2 MB in the beginning and 99.7 MB in the end (delta: -35.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:32,707 INFO L168 Benchmark]: BuchiAutomizer took 157626.95 ms. Allocated memory was 157.3 MB in the beginning and 197.1 MB in the end (delta: 39.8 MB). Free memory was 99.7 MB in the beginning and 103.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 84.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:32,707 INFO L168 Benchmark]: Witness Printer took 59.47 ms. Allocated memory is still 197.1 MB. Free memory was 103.8 MB in the beginning and 101.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:13:32,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96 ms. Allocated memory is still 104.9 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 543.61 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 69.6 MB in the end (delta: 7.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.37 ms. Allocated memory is still 104.9 MB. Free memory was 69.6 MB in the beginning and 66.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.31 ms. Allocated memory is still 104.9 MB. Free memory was 66.5 MB in the beginning and 64.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1156.65 ms. Allocated memory was 104.9 MB in the beginning and 157.3 MB in the end (delta: 52.4 MB). Free memory was 64.2 MB in the beginning and 99.7 MB in the end (delta: -35.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 157626.95 ms. Allocated memory was 157.3 MB in the beginning and 197.1 MB in the end (delta: 39.8 MB). Free memory was 99.7 MB in the beginning and 103.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 84.7 MB. Max. memory is 16.1 GB. * Witness Printer took 59.47 ms. Allocated memory is still 197.1 MB. Free memory was 103.8 MB in the beginning and 101.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 234 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 157.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 156.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 232 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 234 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 255 SDtfs, 894 SDslu, 949 SDs, 0 SdLazy, 81 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 696]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3278} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61dfb6ca=0, NULL=0, NULL=0, NULL=3278, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6075326a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@651ece5c=0, NULL=0, retValue_acc=0, NULL=3287, NULL=0, NULL=0, NULL=3305, NULL=3296, NULL=3291, methaneLevelCritical=0, NULL=3303, tmp=0, NULL=3295, NULL=0, NULL=3284, NULL=0, NULL=3297, tmp___1=0, NULL=3302, NULL=0, NULL=0, tmp___0=1, NULL=3294, tmp=0, cleanupTimeShifts=4, NULL=3286, NULL=3285, NULL=3288, NULL=3293, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3281, \result=1, head=0, pumpRunning=0, \result=0, NULL=3289, NULL=3298, tmp=1, NULL=3304, NULL=0, NULL=0, NULL=0, NULL=3300, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39e2ae1=0, NULL=0, NULL=3279, NULL=0, retValue_acc=1, retValue_acc=1, tmp___2=64, NULL=3282, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=3280, NULL=3299, NULL=3306, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c5db15f=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c37136f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17a4cdfb=0, tmp___1=0, head=0, tmp=0, NULL=3283, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@db2133b=0, NULL=3292, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44478e61=0, NULL=3301, NULL=3290, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int cleanupTimeShifts = 4; [L596] int waterLevel = 1; [L597] int methaneLevelCritical = 0; [L755] int pumpRunning = 0; [L756] int systemActive = 1; [L570] int retValue_acc ; [L571] int tmp ; [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L577] tmp = valid_product() [L579] COND TRUE \read(tmp) [L687] int splverifierCounter ; [L688] int tmp ; [L689] int tmp___0 ; [L690] int tmp___1 ; [L691] int tmp___2 ; [L694] splverifierCounter = 0 Loop: [L696] COND TRUE 1 [L698] COND TRUE splverifierCounter < 4 [L704] tmp = __VERIFIER_nondet_int() [L706] COND FALSE !(\read(tmp)) [L714] tmp___0 = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp___0)) [L724] tmp___2 = __VERIFIER_nondet_int() [L726] COND TRUE \read(tmp___2) [L762] COND FALSE !(\read(pumpRunning)) [L769] COND TRUE \read(systemActive) [L791] int tmp ; [L794] COND FALSE !(\read(pumpRunning)) [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L635] int retValue_acc ; [L638] retValue_acc = methaneLevelCritical [L639] return (retValue_acc); [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L667] int retValue_acc ; [L670] retValue_acc = waterLevel [L671] return (retValue_acc); [L105] tmp___0 = getWaterLevel() [L107] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...