./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product28.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_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/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 82c519f2bf81e68e983e1c89de9d6abbdaa163d4 ............................................................................................................................................................................................................................................................................................................................................................................ 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 00:14:52,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:14:52,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:14:52,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:14:52,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:14:52,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:14:52,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:14:52,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:14:52,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:14:52,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:14:52,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:14:52,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:14:52,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:14:52,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:14:52,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:14:52,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:14:52,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:14:52,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:14:52,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:14:52,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:14:52,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:14:52,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:14:52,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:14:52,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:14:52,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:14:52,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:14:52,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:14:52,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:14:52,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:14:52,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:14:52,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:14:52,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:14:52,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:14:52,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:14:52,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:14:52,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:14:52,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:14:52,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:14:52,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:14:52,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:14:52,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:14:52,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:14:52,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:14:52,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:14:52,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:14:52,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:14:52,921 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:14:52,921 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:14:52,921 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:14:52,921 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:14:52,922 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:14:52,922 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:14:52,923 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:14:52,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:14:52,924 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:14:52,924 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:14:52,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:14:52,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:14:52,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:14:52,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:14:52,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:14:52,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:14:52,927 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:14:52,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:14:52,928 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:14:52,928 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:14:52,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:14:52,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:14:52,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:14:52,929 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:14:52,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:14:52,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:14:52,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:14:52,930 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:14:52,933 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:14:52,934 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_90443c08-84ac-4dc3-bac2-f0119a50ef16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82c519f2bf81e68e983e1c89de9d6abbdaa163d4 [2020-11-30 00:14:53,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:14:53,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:14:53,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:14:53,377 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:14:53,378 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:14:53,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c [2020-11-30 00:14:53,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/data/8c374bfeb/d4aa0a536a3a4f58aed5b013eb7d0752/FLAG2de1b09d5 [2020-11-30 00:14:54,120 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:14:54,121 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c [2020-11-30 00:14:54,141 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/data/8c374bfeb/d4aa0a536a3a4f58aed5b013eb7d0752/FLAG2de1b09d5 [2020-11-30 00:14:54,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/data/8c374bfeb/d4aa0a536a3a4f58aed5b013eb7d0752 [2020-11-30 00:14:54,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:14:54,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:14:54,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:14:54,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:14:54,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:14:54,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:14:54" (1/1) ... [2020-11-30 00:14:54,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29738c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:54, skipping insertion in model container [2020-11-30 00:14:54,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:14:54" (1/1) ... [2020-11-30 00:14:54,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:14:54,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:14:54,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:14:54,920 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:14:55,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:14:55,125 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:14:55,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55 WrapperNode [2020-11-30 00:14:55,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:14:55,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:14:55,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:14:55,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:14:55,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... [2020-11-30 00:14:55,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... [2020-11-30 00:14:55,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:14:55,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:14:55,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:14:55,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:14:55,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... [2020-11-30 00:14:55,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... [2020-11-30 00:14:55,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... [2020-11-30 00:14:55,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... [2020-11-30 00:14:55,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... [2020-11-30 00:14:55,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... [2020-11-30 00:14:55,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... [2020-11-30 00:14:55,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:14:55,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:14:55,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:14:55,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:14:55,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/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 00:14:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:14:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:14:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:14:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:14:56,509 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:14:56,512 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-30 00:14:56,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:14:56 BoogieIcfgContainer [2020-11-30 00:14:56,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:14:56,517 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:14:56,517 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:14:56,522 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:14:56,523 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:14:56,523 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:14:54" (1/3) ... [2020-11-30 00:14:56,525 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@181d9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:14:56, skipping insertion in model container [2020-11-30 00:14:56,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:14:56,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:55" (2/3) ... [2020-11-30 00:14:56,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@181d9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:14:56, skipping insertion in model container [2020-11-30 00:14:56,527 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:14:56,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:14:56" (3/3) ... [2020-11-30 00:14:56,530 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product28.cil.c [2020-11-30 00:14:56,602 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:14:56,602 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:14:56,602 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:14:56,602 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:14:56,603 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:14:56,603 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:14:56,603 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:14:56,603 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:14:56,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-30 00:14:56,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:14:56,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:14:56,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:14:56,678 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:14:56,679 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:14:56,679 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:14:56,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-30 00:14:56,712 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:14:56,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:14:56,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:14:56,718 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:14:56,719 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:14:56,737 INFO L794 eck$LassoCheckResult]: Stem: 40#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 12#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 66#L67true 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; 76#L75true main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 29#L578true assume 0 != main_~tmp~5; 73#L554true ~methAndRunningLastTime~0 := 0; 48#L462true havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 49#L473-1true [2020-11-30 00:14:56,738 INFO L796 eck$LassoCheckResult]: Loop: 49#L473-1true assume !false; 5#L398true assume test_~splverifierCounter~0 < 4; 45#L399true test_~tmp~3 := test_#t~nondet38;havoc test_#t~nondet38; 52#L407true assume !(0 != test_~tmp~3); 55#L407-1true test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; 32#L417true assume !(0 != test_~tmp___0~1); 35#L417-1true test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 8#L427true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 15#L435-1true assume !(0 != ~pumpRunning~0); 72#L200true assume !(0 != ~systemActive~0); 67#L207true havoc __utac_acc__Specification2_spec__2_#t~ret42, __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 41#L139true __utac_acc__Specification2_spec__2_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret42;havoc __utac_acc__Specification2_spec__2_#t~ret42; 46#L473true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 49#L473-1true [2020-11-30 00:14:56,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:14:56,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:14:56,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:14:56,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338919542] [2020-11-30 00:14:56,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:14:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:14:57,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:14:57,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:57,284 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:14:57,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:14:57,286 INFO L82 PathProgramCache]: Analyzing trace with hash 12142294, now seen corresponding path program 1 times [2020-11-30 00:14:57,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:14:57,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40837255] [2020-11-30 00:14:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:14:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:57,362 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 00:14:57,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40837255] [2020-11-30 00:14:57,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:14:57,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:14:57,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971028318] [2020-11-30 00:14:57,372 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:14:57,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:14:57,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:14:57,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:14:57,395 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 3 states. [2020-11-30 00:14:57,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:14:57,521 INFO L93 Difference]: Finished difference Result 149 states and 211 transitions. [2020-11-30 00:14:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:14:57,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 211 transitions. [2020-11-30 00:14:57,539 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2020-11-30 00:14:57,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 135 states and 196 transitions. [2020-11-30 00:14:57,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2020-11-30 00:14:57,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2020-11-30 00:14:57,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 196 transitions. [2020-11-30 00:14:57,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:14:57,559 INFO L691 BuchiCegarLoop]: Abstraction has 135 states and 196 transitions. [2020-11-30 00:14:57,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 196 transitions. [2020-11-30 00:14:57,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2020-11-30 00:14:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-30 00:14:57,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 193 transitions. [2020-11-30 00:14:57,608 INFO L714 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2020-11-30 00:14:57,608 INFO L594 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2020-11-30 00:14:57,608 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:14:57,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states and 193 transitions. [2020-11-30 00:14:57,612 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2020-11-30 00:14:57,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:14:57,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:14:57,616 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:14:57,616 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:14:57,617 INFO L794 eck$LassoCheckResult]: Stem: 289#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 253#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 254#L67 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; 313#L75 main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 271#L578 assume 0 != main_~tmp~5; 272#L554 ~methAndRunningLastTime~0 := 0; 296#L462 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 294#L473-1 [2020-11-30 00:14:57,617 INFO L796 eck$LassoCheckResult]: Loop: 294#L473-1 assume !false; 297#L398 assume test_~splverifierCounter~0 < 4; 327#L399 test_~tmp~3 := test_#t~nondet38;havoc test_#t~nondet38; 326#L407 assume !(0 != test_~tmp~3); 324#L407-1 test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; 323#L417 assume !(0 != test_~tmp___0~1); 321#L417-1 test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 320#L427 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 250#L435-1 assume !(0 != ~pumpRunning~0); 314#L200 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 304#L232 assume !(0 != ~pumpRunning~0); 305#L207 havoc __utac_acc__Specification2_spec__2_#t~ret42, __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 290#L139 __utac_acc__Specification2_spec__2_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret42;havoc __utac_acc__Specification2_spec__2_#t~ret42; 291#L473 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 294#L473-1 [2020-11-30 00:14:57,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:14:57,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:14:57,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:14:57,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200546570] [2020-11-30 00:14:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:14:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:14:57,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:14:57,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:57,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:14:57,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:14:57,863 INFO L82 PathProgramCache]: Analyzing trace with hash 349417955, now seen corresponding path program 1 times [2020-11-30 00:14:57,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:14:57,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842247909] [2020-11-30 00:14:57,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:14:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:14:57,871 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:14:57,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:57,881 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:14:57,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:14:57,882 INFO L82 PathProgramCache]: Analyzing trace with hash 411805865, now seen corresponding path program 1 times [2020-11-30 00:14:57,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:14:57,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632033765] [2020-11-30 00:14:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:14:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:14:57,936 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:14:58,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:58,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:14:58,159 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-30 00:16:41,802 WARN L193 SmtUtils]: Spent 1.73 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:17:43,092 WARN L193 SmtUtils]: Spent 1.02 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:17:43,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:17:43 BoogieIcfgContainer [2020-11-30 00:17:43,287 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:17:43,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:17:43,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:17:43,289 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:17:43,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:14:56" (3/4) ... [2020-11-30 00:17:43,293 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:17:43,371 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_90443c08-84ac-4dc3-bac2-f0119a50ef16/bin/uautomizer/witness.graphml [2020-11-30 00:17:43,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:17:43,374 INFO L168 Benchmark]: Toolchain (without parser) took 168982.79 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 72.7 MB in the beginning and 35.0 MB in the end (delta: 37.7 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:17:43,374 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory is still 37.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:17:43,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.35 ms. Allocated memory is still 100.7 MB. Free memory was 72.4 MB in the beginning and 67.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:17:43,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.54 ms. Allocated memory is still 100.7 MB. Free memory was 67.3 MB in the beginning and 64.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:17:43,377 INFO L168 Benchmark]: Boogie Preprocessor took 82.54 ms. Allocated memory is still 100.7 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:17:43,377 INFO L168 Benchmark]: RCFGBuilder took 1186.85 ms. Allocated memory is still 100.7 MB. Free memory was 61.9 MB in the beginning and 46.0 MB in the end (delta: 15.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:17:43,378 INFO L168 Benchmark]: BuchiAutomizer took 166770.72 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 46.0 MB in the beginning and 37.1 MB in the end (delta: 8.9 MB). Peak memory consumption was 47.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:17:43,379 INFO L168 Benchmark]: Witness Printer took 83.54 ms. Allocated memory is still 121.6 MB. Free memory was 37.1 MB in the beginning and 35.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:17:43,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory is still 37.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 732.35 ms. Allocated memory is still 100.7 MB. Free memory was 72.4 MB in the beginning and 67.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 116.54 ms. Allocated memory is still 100.7 MB. Free memory was 67.3 MB in the beginning and 64.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.54 ms. Allocated memory is still 100.7 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1186.85 ms. Allocated memory is still 100.7 MB. Free memory was 61.9 MB in the beginning and 46.0 MB in the end (delta: 15.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 166770.72 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 46.0 MB in the beginning and 37.1 MB in the end (delta: 8.9 MB). Peak memory consumption was 47.2 MB. Max. memory is 16.1 GB. * Witness Printer took 83.54 ms. Allocated memory is still 121.6 MB. Free memory was 37.1 MB in the beginning and 35.0 MB in the end (delta: 2.1 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 133 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 166.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 166.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 133 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 108 SDtfs, 104 SDslu, 95 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 397]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=22493, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a346461=0, NULL=0, NULL=0, NULL=0, NULL=1, NULL=22506, retValue_acc=0, NULL=22505, NULL=22502, NULL=22487, NULL=22490, methaneLevelCritical=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@434bd4b9=0, NULL=0, NULL=0, NULL=22500, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=22483, NULL=22484, cleanupTimeShifts=4, NULL=22491, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17e0fcc0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b53ef36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@136a229d=0, NULL=22485, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5af3d407=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f745b65=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e044943=71, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, retValue_acc=0, NULL=22480, \result=1, head=0, pumpRunning=0, \result=0, NULL=22499, NULL=0, NULL=22494, NULL=0, NULL=0, tmp=1, NULL=0, NULL=22501, NULL=22495, NULL=0, NULL=0, NULL=22503, NULL=0, NULL=0, NULL=2, NULL=0, retValue_acc=1, tmp___2=71, NULL=0, NULL=22482, tmp___0=0, NULL=22492, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=22497, NULL=22481, NULL=22498, NULL=22486, tmp=0, head=0, NULL=0, NULL=0, NULL=22496, NULL=0, NULL=22489, NULL=0, NULL=0, NULL=0, tmp=0, NULL=22488, NULL=22504} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L192] int pumpRunning = 0; [L193] int systemActive = 1; [L456] int methAndRunningLastTime ; [L495] int cleanupTimeShifts = 4; [L761] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int retValue_acc ; [L570] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L576] tmp = valid_product() [L578] COND TRUE \read(tmp) [L461] methAndRunningLastTime = 0 [L388] int splverifierCounter ; [L389] int tmp ; [L390] int tmp___0 ; [L391] int tmp___1 ; [L392] int tmp___2 ; [L395] splverifierCounter = 0 Loop: [L397] COND TRUE 1 [L399] COND TRUE splverifierCounter < 4 [L405] tmp = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp)) [L415] tmp___0 = __VERIFIER_nondet_int() [L417] COND FALSE !(\read(tmp___0)) [L425] tmp___2 = __VERIFIER_nondet_int() [L427] COND TRUE \read(tmp___2) [L381] systemActive = 1 [L200] COND FALSE !(\read(pumpRunning)) [L207] COND TRUE \read(systemActive) [L229] int tmp ; [L232] COND FALSE !(\read(pumpRunning)) [L466] int tmp ; [L467] int tmp___0 ; [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L471] tmp = isMethaneLevelCritical() [L473] COND FALSE !(\read(tmp)) [L489] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...