./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product32.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_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product32.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/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 22c7cf4a4cbd4c9d9a1437e76dac75349b25e74a .............................................................................................................................................................................................................................................................................................................................................................................. 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 20:53:22,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:53:22,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:53:22,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:53:22,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:53:22,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:53:22,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:53:22,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:53:22,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:53:22,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:53:22,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:53:22,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:53:22,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:53:22,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:53:22,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:53:22,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:53:22,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:53:22,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:53:22,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:53:22,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:53:22,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:53:22,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:53:22,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:53:22,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:53:22,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:53:22,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:53:22,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:53:22,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:53:22,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:53:22,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:53:22,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:53:22,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:53:22,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:53:22,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:53:22,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:53:22,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:53:22,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:53:22,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:53:22,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:53:22,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:53:23,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:53:23,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:53:23,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:53:23,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:53:23,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:53:23,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:53:23,058 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:53:23,059 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:53:23,059 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:53:23,059 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:53:23,059 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:53:23,060 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:53:23,061 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:53:23,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:53:23,062 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:53:23,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:53:23,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:53:23,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:53:23,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:53:23,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:53:23,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:53:23,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:53:23,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:53:23,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:53:23,064 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:53:23,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:53:23,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:53:23,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:53:23,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:53:23,066 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:53:23,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:53:23,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:53:23,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:53:23,067 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:53:23,069 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:53:23,070 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_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22c7cf4a4cbd4c9d9a1437e76dac75349b25e74a [2020-11-29 20:53:23,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:53:23,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:53:23,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:53:23,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:53:23,530 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:53:23,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product32.cil.c [2020-11-29 20:53:23,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/data/0f25eef92/e197039bb4e94add98095ef077fd4a9f/FLAG8c0918d7e [2020-11-29 20:53:24,356 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:53:24,365 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/sv-benchmarks/c/product-lines/minepump_spec2_product32.cil.c [2020-11-29 20:53:24,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/data/0f25eef92/e197039bb4e94add98095ef077fd4a9f/FLAG8c0918d7e [2020-11-29 20:53:24,557 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/data/0f25eef92/e197039bb4e94add98095ef077fd4a9f [2020-11-29 20:53:24,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:53:24,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:53:24,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:53:24,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:53:24,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:53:24,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:53:24" (1/1) ... [2020-11-29 20:53:24,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401dde13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:24, skipping insertion in model container [2020-11-29 20:53:24,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:53:24" (1/1) ... [2020-11-29 20:53:24,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:53:24,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:53:25,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:53:25,072 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:53:25,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:53:25,273 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:53:25,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25 WrapperNode [2020-11-29 20:53:25,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:53:25,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:53:25,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:53:25,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:53:25,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... [2020-11-29 20:53:25,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... [2020-11-29 20:53:25,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:53:25,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:53:25,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:53:25,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:53:25,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... [2020-11-29 20:53:25,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... [2020-11-29 20:53:25,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... [2020-11-29 20:53:25,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... [2020-11-29 20:53:25,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... [2020-11-29 20:53:25,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... [2020-11-29 20:53:25,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... [2020-11-29 20:53:25,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:53:25,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:53:25,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:53:25,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:53:25,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/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 20:53:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:53:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:53:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:53:25,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:53:26,835 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:53:26,835 INFO L298 CfgBuilder]: Removed 170 assume(true) statements. [2020-11-29 20:53:26,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:53:26 BoogieIcfgContainer [2020-11-29 20:53:26,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:53:26,839 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:53:26,839 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:53:26,845 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:53:26,846 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:53:26,846 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:53:24" (1/3) ... [2020-11-29 20:53:26,847 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f9aacb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:53:26, skipping insertion in model container [2020-11-29 20:53:26,848 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:53:26,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:25" (2/3) ... [2020-11-29 20:53:26,849 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f9aacb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:53:26, skipping insertion in model container [2020-11-29 20:53:26,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:53:26,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:53:26" (3/3) ... [2020-11-29 20:53:26,852 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product32.cil.c [2020-11-29 20:53:26,917 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:53:26,918 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:53:26,918 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:53:26,919 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:53:26,919 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:53:26,919 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:53:26,919 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:53:26,919 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:53:26,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 20:53:26,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 20:53:26,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:53:26,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:53:27,008 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:27,008 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:27,008 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:53:27,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 20:53:27,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 20:53:27,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:53:27,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:53:27,031 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:27,031 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:27,044 INFO L794 eck$LassoCheckResult]: Stem: 78#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);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(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);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(21);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(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 6#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 82#L476true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 86#L484true main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 88#L440true assume 0 != main_~tmp~5; 104#L412true ~methAndRunningLastTime~0 := 0; 8#L585true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L596-1true [2020-11-29 20:53:27,045 INFO L796 eck$LassoCheckResult]: Loop: 10#L596-1true assume !false; 112#L68true assume test_~splverifierCounter~0 < 4; 46#L69true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 84#L77true assume !(0 != test_~tmp~0); 81#L77-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 17#L87true assume !(0 != test_~tmp___0~0); 12#L87-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 40#L97true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 32#L105-1true assume !(0 != ~pumpRunning~0); 23#L142true assume !(0 != ~systemActive~0); 56#L149true havoc __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 100#L533-1true __utac_acc__Specification2_spec__2_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret44;havoc __utac_acc__Specification2_spec__2_#t~ret44; 7#L596true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 10#L596-1true [2020-11-29 20:53:27,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:27,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 20:53:27,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:27,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073743764] [2020-11-29 20:53:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:53:27,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:53:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:53:27,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:53:27,763 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:53:27,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:27,768 INFO L82 PathProgramCache]: Analyzing trace with hash 13527574, now seen corresponding path program 1 times [2020-11-29 20:53:27,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:27,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965757296] [2020-11-29 20:53:27,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:27,856 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 20:53:27,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965757296] [2020-11-29 20:53:27,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:27,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:53:27,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520158654] [2020-11-29 20:53:27,870 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:53:27,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:27,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:27,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:27,892 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2020-11-29 20:53:27,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:27,999 INFO L93 Difference]: Finished difference Result 209 states and 301 transitions. [2020-11-29 20:53:28,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:28,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 301 transitions. [2020-11-29 20:53:28,008 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2020-11-29 20:53:28,016 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 195 states and 286 transitions. [2020-11-29 20:53:28,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2020-11-29 20:53:28,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2020-11-29 20:53:28,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 286 transitions. [2020-11-29 20:53:28,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:53:28,022 INFO L691 BuchiCegarLoop]: Abstraction has 195 states and 286 transitions. [2020-11-29 20:53:28,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 286 transitions. [2020-11-29 20:53:28,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2020-11-29 20:53:28,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-11-29 20:53:28,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 283 transitions. [2020-11-29 20:53:28,088 INFO L714 BuchiCegarLoop]: Abstraction has 193 states and 283 transitions. [2020-11-29 20:53:28,088 INFO L594 BuchiCegarLoop]: Abstraction has 193 states and 283 transitions. [2020-11-29 20:53:28,089 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:53:28,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 283 transitions. [2020-11-29 20:53:28,091 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2020-11-29 20:53:28,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:53:28,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:53:28,093 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:28,093 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:28,093 INFO L794 eck$LassoCheckResult]: Stem: 422#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);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(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);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(21);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(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 335#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 336#L476 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 424#L484 main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 426#L440 assume 0 != main_~tmp~5; 427#L412 ~methAndRunningLastTime~0 := 0; 340#L585 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 341#L596-1 [2020-11-29 20:53:28,094 INFO L796 eck$LassoCheckResult]: Loop: 341#L596-1 assume !false; 344#L68 assume test_~splverifierCounter~0 < 4; 397#L69 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 398#L77 assume !(0 != test_~tmp~0); 357#L77-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 358#L87 assume !(0 != test_~tmp___0~0); 347#L87-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 348#L97 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 380#L105-1 assume !(0 != ~pumpRunning~0); 370#L142 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 371#L200 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 392#L174-1 assume !(0 != ~pumpRunning~0); 393#L149 havoc __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 411#L533-1 __utac_acc__Specification2_spec__2_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret44;havoc __utac_acc__Specification2_spec__2_#t~ret44; 433#L596 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 341#L596-1 [2020-11-29 20:53:28,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:28,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 20:53:28,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:28,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297220645] [2020-11-29 20:53:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:53:28,170 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:53:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:53:28,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:53:28,251 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:53:28,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:28,252 INFO L82 PathProgramCache]: Analyzing trace with hash -2034283736, now seen corresponding path program 1 times [2020-11-29 20:53:28,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:28,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139998955] [2020-11-29 20:53:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:53:28,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:53:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:53:28,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:53:28,271 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:53:28,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:28,272 INFO L82 PathProgramCache]: Analyzing trace with hash -100258526, now seen corresponding path program 1 times [2020-11-29 20:53:28,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:28,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288556794] [2020-11-29 20:53:28,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:53:28,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:53:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:53:28,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:53:28,475 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:53:28,587 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-29 20:55:02,388 WARN L193 SmtUtils]: Spent 1.56 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 20:56:01,093 WARN L193 SmtUtils]: Spent 58.67 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 20:56:01,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:56:01 BoogieIcfgContainer [2020-11-29 20:56:01,353 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:56:01,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:56:01,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:56:01,354 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:56:01,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:53:26" (3/4) ... [2020-11-29 20:56:01,357 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:56:01,414 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7b4a07d2-bbdf-4467-bd94-dc79b67a643f/bin/uautomizer/witness.graphml [2020-11-29 20:56:01,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:56:01,416 INFO L168 Benchmark]: Toolchain (without parser) took 156848.45 ms. Allocated memory was 86.0 MB in the beginning and 140.5 MB in the end (delta: 54.5 MB). Free memory was 49.0 MB in the beginning and 62.9 MB in the end (delta: -13.9 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:56:01,416 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 86.0 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:56:01,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.88 ms. Allocated memory is still 86.0 MB. Free memory was 48.7 MB in the beginning and 51.9 MB in the end (delta: -3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:56:01,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.84 ms. Allocated memory is still 86.0 MB. Free memory was 51.7 MB in the beginning and 48.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:56:01,418 INFO L168 Benchmark]: Boogie Preprocessor took 77.41 ms. Allocated memory is still 86.0 MB. Free memory was 48.2 MB in the beginning and 45.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:56:01,419 INFO L168 Benchmark]: RCFGBuilder took 1362.41 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 45.7 MB in the beginning and 38.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:56:01,419 INFO L168 Benchmark]: BuchiAutomizer took 154514.39 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 38.7 MB in the beginning and 64.8 MB in the end (delta: -26.1 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:56:01,420 INFO L168 Benchmark]: Witness Printer took 60.54 ms. Allocated memory is still 140.5 MB. Free memory was 64.8 MB in the beginning and 62.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:56:01,423 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 86.0 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 706.88 ms. Allocated memory is still 86.0 MB. Free memory was 48.7 MB in the beginning and 51.9 MB in the end (delta: -3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.84 ms. Allocated memory is still 86.0 MB. Free memory was 51.7 MB in the beginning and 48.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.41 ms. Allocated memory is still 86.0 MB. Free memory was 48.2 MB in the beginning and 45.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1362.41 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 45.7 MB in the beginning and 38.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 154514.39 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 38.7 MB in the beginning and 64.8 MB in the end (delta: -26.1 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. * Witness Printer took 60.54 ms. Allocated memory is still 140.5 MB. Free memory was 64.8 MB in the beginning and 62.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 193 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 154.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 154.0s. 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 193 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 153 SDtfs, 149 SDslu, 140 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: 67]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=25373} State at position 1 is {NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8754c26=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54edf09a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46a0f2e=0, NULL=25373, retValue_acc=0, NULL=0, NULL=0, NULL=44644, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@258fb64b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a329644=0, NULL=44639, methaneLevelCritical=0, NULL=25377, NULL=0, NULL=0, NULL=44649, NULL=44637, NULL=0, NULL=0, NULL=44653, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=44659, NULL=44654, NULL=44638, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1248731d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e63161=0, NULL=0, systemActive=1, waterLevel=1, NULL=44642, NULL=0, retValue_acc=0, tmp___0=0, NULL=44634, \result=1, NULL=44651, head=0, pumpRunning=0, \result=0, NULL=25376, NULL=44645, NULL=0, NULL=0, tmp=1, NULL=0, NULL=44632, retValue_acc=1, NULL=0, NULL=44643, NULL=44633, NULL=0, NULL=44652, NULL=0, NULL=0, NULL=44635, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b34163c=0, tmp___2=72, NULL=0, NULL=44646, NULL=44636, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@382a2dc4=0, methAndRunningLastTime=0, \result=0, NULL=44640, NULL=44648, NULL=44647, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=25375, NULL=0, NULL=0, NULL=0, NULL=0, NULL=44650, NULL=0, NULL=25374, NULL=44641, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L353] int cleanupTimeShifts = 4; [L490] int waterLevel = 1; [L491] int methaneLevelCritical = 0; [L579] int methAndRunningLastTime ; [L787] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L431] int retValue_acc ; [L432] int tmp ; [L480] int retValue_acc ; [L483] retValue_acc = 1 [L484] return (retValue_acc); [L438] tmp = valid_product() [L440] COND TRUE \read(tmp) [L584] methAndRunningLastTime = 0 [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 Loop: [L67] COND TRUE 1 [L69] COND TRUE splverifierCounter < 4 [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L348] systemActive = 1 [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L197] int tmp ; [L200] COND FALSE !(\read(pumpRunning)) [L171] int tmp ; [L174] COND FALSE !(\read(pumpRunning)) [L589] int tmp ; [L590] int tmp___0 ; [L529] int retValue_acc ; [L532] retValue_acc = methaneLevelCritical [L533] return (retValue_acc); [L594] tmp = isMethaneLevelCritical() [L596] COND FALSE !(\read(tmp)) [L612] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...