./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.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_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/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 9c69bef4f4f2450c32edaec1a26ef48007ef0e6d ............................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:29:15,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:29:15,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:29:15,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:29:15,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:29:15,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:29:15,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:29:15,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:29:15,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:29:15,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:29:15,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:29:15,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:29:15,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:29:15,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:29:15,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:29:15,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:29:15,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:29:15,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:29:15,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:29:15,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:29:15,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:29:15,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:29:15,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:29:15,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:29:15,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:29:15,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:29:15,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:29:15,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:29:15,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:29:15,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:29:15,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:29:15,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:29:15,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:29:15,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:29:15,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:29:15,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:29:15,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:29:15,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:29:15,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:29:15,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:29:15,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:29:15,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:29:15,868 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:29:15,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:29:15,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:29:15,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:29:15,871 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:29:15,871 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:29:15,871 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:29:15,872 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:29:15,872 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:29:15,872 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:29:15,873 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:29:15,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:29:15,874 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:29:15,874 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:29:15,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:29:15,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:29:15,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:29:15,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:29:15,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:29:15,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:29:15,875 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:29:15,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:29:15,876 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:29:15,876 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:29:15,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:29:15,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:29:15,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:29:15,877 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:29:15,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:29:15,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:29:15,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:29:15,880 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:29:15,881 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:29:15,881 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_7d2d5021-9355-415b-a72f-bb7397b26746/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c69bef4f4f2450c32edaec1a26ef48007ef0e6d [2020-11-29 19:29:16,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:29:16,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:29:16,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:29:16,168 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:29:16,169 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:29:16,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2020-11-29 19:29:16,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/data/d9a1ba8e4/4a9871e297bc493b8322e98405ee0428/FLAG63ba661df [2020-11-29 19:29:16,756 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:29:16,767 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2020-11-29 19:29:16,784 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/data/d9a1ba8e4/4a9871e297bc493b8322e98405ee0428/FLAG63ba661df [2020-11-29 19:29:17,088 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/data/d9a1ba8e4/4a9871e297bc493b8322e98405ee0428 [2020-11-29 19:29:17,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:29:17,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:29:17,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:29:17,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:29:17,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:29:17,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a96dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17, skipping insertion in model container [2020-11-29 19:29:17,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:29:17,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:29:17,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:29:17,610 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:29:17,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:29:17,765 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:29:17,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17 WrapperNode [2020-11-29 19:29:17,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:29:17,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:29:17,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:29:17,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:29:17,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:29:17,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:29:17,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:29:17,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:29:17,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... [2020-11-29 19:29:17,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:29:17,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:29:17,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:29:17,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:29:17,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/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 19:29:18,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:29:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:29:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:29:18,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:29:19,176 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:29:19,176 INFO L298 CfgBuilder]: Removed 284 assume(true) statements. [2020-11-29 19:29:19,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:29:19 BoogieIcfgContainer [2020-11-29 19:29:19,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:29:19,179 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:29:19,179 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:29:19,182 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:29:19,182 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:29:19,183 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:29:17" (1/3) ... [2020-11-29 19:29:19,184 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32d4dcf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:29:19, skipping insertion in model container [2020-11-29 19:29:19,184 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:29:19,184 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:17" (2/3) ... [2020-11-29 19:29:19,184 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32d4dcf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:29:19, skipping insertion in model container [2020-11-29 19:29:19,185 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:29:19,185 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:29:19" (3/3) ... [2020-11-29 19:29:19,186 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product54.cil.c [2020-11-29 19:29:19,236 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:29:19,237 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:29:19,237 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:29:19,237 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:29:19,237 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:29:19,237 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:29:19,237 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:29:19,238 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:29:19,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2020-11-29 19:29:19,282 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-29 19:29:19,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:29:19,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:29:19,290 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:29:19,291 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:29:19,291 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:29:19,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2020-11-29 19:29:19,302 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-29 19:29:19,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:29:19,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:29:19,304 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:29:19,304 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:29:19,309 INFO L794 eck$LassoCheckResult]: Stem: 125#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 20#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 97#L485true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 100#L493true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 137#L132true assume 0 != main_~tmp~0; 94#L105true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 140#L506-1true [2020-11-29 19:29:19,310 INFO L796 eck$LassoCheckResult]: Loop: 140#L506-1true assume !false; 41#L158true assume test_~splverifierCounter~0 < 4; 177#L159true test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 170#L167true assume !(0 != test_~tmp~1); 168#L167-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 68#L177true assume !(0 != test_~tmp___0~0); 63#L177-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 114#L187true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 155#L195-2true assume !(0 != ~pumpRunning~0); 139#L239true assume !(0 != ~systemActive~0); 78#L246true havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~7;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; 87#L934-1true __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 164#L506true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 140#L506-1true [2020-11-29 19:29:19,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:19,315 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:29:19,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:19,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328737597] [2020-11-29 19:29:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:19,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:19,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:19,770 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:29:19,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:19,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1675526971, now seen corresponding path program 1 times [2020-11-29 19:29:19,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:19,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703760999] [2020-11-29 19:29:19,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:19,842 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 19:29:19,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703760999] [2020-11-29 19:29:19,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:29:19,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:29:19,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941552426] [2020-11-29 19:29:19,848 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:29:19,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:29:19,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:29:19,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:29:19,864 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 3 states. [2020-11-29 19:29:19,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:29:19,939 INFO L93 Difference]: Finished difference Result 186 states and 275 transitions. [2020-11-29 19:29:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:29:19,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 275 transitions. [2020-11-29 19:29:19,952 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2020-11-29 19:29:19,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 179 states and 267 transitions. [2020-11-29 19:29:19,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2020-11-29 19:29:19,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2020-11-29 19:29:19,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 267 transitions. [2020-11-29 19:29:19,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:29:19,964 INFO L691 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-29 19:29:19,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 267 transitions. [2020-11-29 19:29:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-11-29 19:29:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-11-29 19:29:20,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 267 transitions. [2020-11-29 19:29:20,033 INFO L714 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-29 19:29:20,033 INFO L594 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-29 19:29:20,034 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:29:20,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 267 transitions. [2020-11-29 19:29:20,036 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2020-11-29 19:29:20,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:29:20,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:29:20,038 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:29:20,038 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 19:29:20,038 INFO L794 eck$LassoCheckResult]: Stem: 530#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 418#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 419#L485 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 511#L493 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 514#L132 assume 0 != main_~tmp~0; 510#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 495#L506-1 [2020-11-29 19:29:20,038 INFO L796 eck$LassoCheckResult]: Loop: 495#L506-1 assume !false; 448#L158 assume test_~splverifierCounter~0 < 4; 449#L159 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 556#L167 assume !(0 != test_~tmp~1); 509#L167-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 488#L177 assume !(0 != test_~tmp___0~0); 385#L177-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 478#L187 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 522#L195-2 assume !(0 != ~pumpRunning~0); 539#L239 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 481#L323 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret13, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 483#L297-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret12, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 463#L271-3 assume !(0 == ~pumpRunning~0); 434#L246 havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~7;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; 496#L934-1 __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 504#L506 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 495#L506-1 [2020-11-29 19:29:20,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:20,039 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:29:20,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:20,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810571912] [2020-11-29 19:29:20,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:20,140 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:20,204 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:20,221 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:29:20,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:20,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1905346312, now seen corresponding path program 1 times [2020-11-29 19:29:20,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:20,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325597459] [2020-11-29 19:29:20,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:20,241 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 19:29:20,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325597459] [2020-11-29 19:29:20,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:29:20,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:29:20,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730242340] [2020-11-29 19:29:20,243 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:29:20,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:29:20,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:29:20,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:29:20,244 INFO L87 Difference]: Start difference. First operand 179 states and 267 transitions. cyclomatic complexity: 90 Second operand 3 states. [2020-11-29 19:29:20,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:29:20,441 INFO L93 Difference]: Finished difference Result 184 states and 255 transitions. [2020-11-29 19:29:20,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:29:20,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 255 transitions. [2020-11-29 19:29:20,445 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-29 19:29:20,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 255 transitions. [2020-11-29 19:29:20,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2020-11-29 19:29:20,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2020-11-29 19:29:20,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 255 transitions. [2020-11-29 19:29:20,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:29:20,456 INFO L691 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-29 19:29:20,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 255 transitions. [2020-11-29 19:29:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-29 19:29:20,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-29 19:29:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2020-11-29 19:29:20,469 INFO L714 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-29 19:29:20,469 INFO L594 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-29 19:29:20,470 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:29:20,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 255 transitions. [2020-11-29 19:29:20,472 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-29 19:29:20,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:29:20,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:29:20,476 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:29:20,476 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 19:29:20,476 INFO L794 eck$LassoCheckResult]: Stem: 873#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 777#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 778#L485 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 856#L493 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 859#L132 assume 0 != main_~tmp~0; 855#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 839#L506-1 [2020-11-29 19:29:20,477 INFO L796 eck$LassoCheckResult]: Loop: 839#L506-1 assume !false; 799#L158 assume test_~splverifierCounter~0 < 4; 800#L159 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 898#L167 assume !(0 != test_~tmp~1); 854#L167-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 830#L177 assume !(0 != test_~tmp___0~0); 754#L177-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 823#L187 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 865#L195-2 assume !(0 != ~pumpRunning~0); 882#L239 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 824#L323 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret13, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 825#L297-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret12, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 812#L271-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret32, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 813#L974-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 890#L979-3 isHighWaterLevel_#t~ret32 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret32;havoc isHighWaterLevel_#t~ret32; 796#L425-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 779#L425-11 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 765#L431-3 processEnvironment__wrappee__highWaterSensor_#t~ret12 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret12;havoc processEnvironment__wrappee__highWaterSensor_#t~ret12; 766#L275-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 840#L246 havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~7;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; 841#L934-1 __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 850#L506 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 839#L506-1 [2020-11-29 19:29:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:20,479 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:29:20,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:20,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516466759] [2020-11-29 19:29:20,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:20,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:20,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:20,589 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:29:20,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:20,590 INFO L82 PathProgramCache]: Analyzing trace with hash -659266396, now seen corresponding path program 1 times [2020-11-29 19:29:20,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:20,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738881082] [2020-11-29 19:29:20,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:20,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:20,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:20,605 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:29:20,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:20,606 INFO L82 PathProgramCache]: Analyzing trace with hash 594038730, now seen corresponding path program 1 times [2020-11-29 19:29:20,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:20,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108407457] [2020-11-29 19:29:20,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:20,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:20,704 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:20,721 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:29:20,865 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 19:30:39,702 WARN L193 SmtUtils]: Spent 1.31 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:31:32,867 WARN L193 SmtUtils]: Spent 53.16 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:31:33,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:31:33 BoogieIcfgContainer [2020-11-29 19:31:33,059 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:31:33,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:31:33,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:31:33,060 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:31:33,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:29:19" (3/4) ... [2020-11-29 19:31:33,063 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:31:33,144 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7d2d5021-9355-415b-a72f-bb7397b26746/bin/uautomizer/witness.graphml [2020-11-29 19:31:33,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:31:33,150 INFO L168 Benchmark]: Toolchain (without parser) took 136055.82 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 73.0 MB in the beginning and 44.3 MB in the end (delta: 28.7 MB). Peak memory consumption was 75.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:31:33,151 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory was 35.3 MB in the beginning and 35.2 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:31:33,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.48 ms. Allocated memory is still 104.9 MB. Free memory was 72.8 MB in the beginning and 71.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:31:33,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.84 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 65.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:31:33,157 INFO L168 Benchmark]: Boogie Preprocessor took 55.23 ms. Allocated memory is still 104.9 MB. Free memory was 65.9 MB in the beginning and 62.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:31:33,157 INFO L168 Benchmark]: RCFGBuilder took 1281.31 ms. Allocated memory is still 104.9 MB. Free memory was 62.6 MB in the beginning and 38.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:31:33,158 INFO L168 Benchmark]: BuchiAutomizer took 133880.26 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 38.6 MB in the beginning and 47.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:31:33,171 INFO L168 Benchmark]: Witness Printer took 89.69 ms. Allocated memory is still 151.0 MB. Free memory was 47.5 MB in the beginning and 44.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:31:33,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory was 35.3 MB in the beginning and 35.2 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 667.48 ms. Allocated memory is still 104.9 MB. Free memory was 72.8 MB in the beginning and 71.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.84 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 65.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.23 ms. Allocated memory is still 104.9 MB. Free memory was 65.9 MB in the beginning and 62.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1281.31 ms. Allocated memory is still 104.9 MB. Free memory was 62.6 MB in the beginning and 38.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 133880.26 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 38.6 MB in the beginning and 47.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.1 GB. * Witness Printer took 89.69 ms. Allocated memory is still 151.0 MB. Free memory was 47.5 MB in the beginning and 44.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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 184 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 133.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 133.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 184 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 464 SDtfs, 405 SDslu, 75 SDs, 0 SdLazy, 45 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 157]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14034} State at position 1 is {NULL=0, NULL=0, NULL=14056, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5351736c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@612cfdbf=0, NULL=14034, NULL=0, NULL=14040, NULL=0, NULL=14038, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c8dc0b1=0, retValue_acc=0, NULL=0, NULL=14042, NULL=0, tmp___1=0, NULL=14051, NULL=14055, NULL=0, cleanupTimeShifts=4, tmp=0, retValue_acc=0, NULL=14061, NULL=0, NULL=0, waterLevel=1, NULL=14046, tmp___0=0, NULL=14054, \result=1, head=0, pumpRunning=0, tmp=1, NULL=14048, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8eac391=0, \result=1, NULL=0, NULL=0, NULL=14037, NULL=0, NULL=0, tmp=1, NULL=14036, NULL=14045, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@313147b4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4879a74d=0, head=0, tmp=0, NULL=14063, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64b25abc=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c2f316c=59, NULL=14050, tmp___0=0, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fcd8d05=0, NULL=0, NULL=14053, NULL=14057, tmp___0=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=14035, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=14058, \result=0, NULL=14049, NULL=0, NULL=14043, NULL=0, retValue_acc=1, NULL=14044, NULL=14041, NULL=14059, retValue_acc=1, tmp___2=59, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=14060, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ae16341=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32292b3d=0, NULL=14039, NULL=14062, NULL=14047} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L693] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L891] int waterLevel = 1; [L892] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L489] int retValue_acc ; [L492] retValue_acc = 1 [L493] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L148] int splverifierCounter ; [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L152] int tmp___2 ; [L155] splverifierCounter = 0 Loop: [L157] COND TRUE 1 [L159] COND TRUE splverifierCounter < 4 [L165] tmp = __VERIFIER_nondet_int() [L167] COND FALSE !(\read(tmp)) [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) [L458] systemActive = 1 [L239] COND FALSE !(\read(pumpRunning)) [L246] COND TRUE \read(systemActive) [L320] int tmp ; [L323] COND FALSE !(\read(pumpRunning)) [L294] int tmp ; [L297] COND FALSE !(\read(pumpRunning)) [L268] int tmp ; [L271] COND TRUE ! pumpRunning [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L971] int retValue_acc ; [L974] COND TRUE waterLevel < 2 [L975] retValue_acc = 1 [L976] return (retValue_acc); [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); [L273] tmp = isHighWaterLevel() [L275] COND FALSE !(\read(tmp)) [L499] int tmp ; [L500] int tmp___0 ; [L930] int retValue_acc ; [L933] retValue_acc = methaneLevelCritical [L934] return (retValue_acc); [L504] tmp = isMethaneLevelCritical() [L506] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...