./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/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 1a701515fb5a246fd69af11a72b1e3fa96a75d92 ................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:51:03,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:51:03,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:51:03,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:51:03,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:51:03,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:51:03,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:51:03,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:51:03,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:51:03,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:51:03,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:51:03,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:51:03,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:51:03,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:51:03,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:51:03,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:51:03,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:51:03,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:51:03,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:51:03,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:51:03,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:51:03,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:51:03,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:51:03,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:51:03,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:51:03,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:51:03,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:51:03,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:51:03,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:51:03,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:51:03,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:51:03,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:51:03,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:51:03,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:51:03,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:51:03,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:51:03,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:51:03,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:51:03,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:51:03,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:51:03,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:51:03,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:51:03,497 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:51:03,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:51:03,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:51:03,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:51:03,499 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:51:03,500 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:51:03,500 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:51:03,500 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:51:03,500 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:51:03,500 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:51:03,502 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:51:03,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:51:03,502 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:51:03,502 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:51:03,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:51:03,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:51:03,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:51:03,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:51:03,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:51:03,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:51:03,504 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:51:03,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:51:03,505 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:51:03,505 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:51:03,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:51:03,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:51:03,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:51:03,506 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:51:03,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:51:03,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:51:03,508 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:51:03,508 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:51:03,510 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:51:03,510 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_7e00015e-aa8f-4360-b6ee-95da90eee64f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a701515fb5a246fd69af11a72b1e3fa96a75d92 [2020-11-29 22:51:03,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:51:03,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:51:03,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:51:03,793 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:51:03,794 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:51:03,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2020-11-29 22:51:03,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/data/c23bc8b29/1f7a8945350841c79fe3e052acc069d4/FLAG0ff7c3076 [2020-11-29 22:51:04,504 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:51:04,511 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2020-11-29 22:51:04,530 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/data/c23bc8b29/1f7a8945350841c79fe3e052acc069d4/FLAG0ff7c3076 [2020-11-29 22:51:04,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/data/c23bc8b29/1f7a8945350841c79fe3e052acc069d4 [2020-11-29 22:51:04,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:51:04,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:51:04,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:51:04,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:51:04,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:51:04,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:51:04" (1/1) ... [2020-11-29 22:51:04,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a468ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:04, skipping insertion in model container [2020-11-29 22:51:04,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:51:04" (1/1) ... [2020-11-29 22:51:04,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:51:04,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:51:05,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:51:05,236 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:51:05,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:51:05,407 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:51:05,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05 WrapperNode [2020-11-29 22:51:05,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:51:05,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:51:05,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:51:05,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:51:05,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:51:05,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:51:05,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:51:05,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:51:05,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:51:05,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:51:05,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:51:05,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:51:05,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:51:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:51:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:51:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:51:05,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:51:06,695 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:51:06,700 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-29 22:51:06,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:51:06 BoogieIcfgContainer [2020-11-29 22:51:06,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:51:06,704 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:51:06,704 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:51:06,707 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:51:06,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:51:06,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:51:04" (1/3) ... [2020-11-29 22:51:06,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c32bb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:51:06, skipping insertion in model container [2020-11-29 22:51:06,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:51:06,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (2/3) ... [2020-11-29 22:51:06,712 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c32bb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:51:06, skipping insertion in model container [2020-11-29 22:51:06,712 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:51:06,712 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:51:06" (3/3) ... [2020-11-29 22:51:06,714 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2020-11-29 22:51:06,771 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:51:06,771 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:51:06,771 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:51:06,771 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:51:06,771 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:51:06,772 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:51:06,772 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:51:06,772 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:51:06,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-29 22:51:06,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 22:51:06,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:51:06,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:51:06,833 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:51:06,834 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:51:06,834 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:51:06,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-29 22:51:06,847 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 22:51:06,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:51:06,847 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:51:06,849 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:51:06,849 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:51:06,860 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 5#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 66#L876true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 72#L884true main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 74#L840true assume 0 != main_~tmp~6; 61#L814true havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 43#L897-1true [2020-11-29 22:51:06,861 INFO L796 eck$LassoCheckResult]: Loop: 43#L897-1true assume !false; 33#L699true assume test_~splverifierCounter~0 < 4; 52#L700true test_~tmp~5 := test_#t~nondet71;havoc test_#t~nondet71; 60#L708true assume !(0 != test_~tmp~5); 62#L708-1true test_~tmp___0~1 := test_#t~nondet72;havoc test_#t~nondet72; 37#L718true assume !(0 != test_~tmp___0~1); 39#L718-1true test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 20#L728true assume 0 != test_~tmp___2~0; 76#L734-1true assume !(0 != ~pumpRunning~0); 78#L518true assume !(0 != ~systemActive~0); 64#L525true havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 23#L490true __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 41#L897true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 43#L897-1true [2020-11-29 22:51:06,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:06,867 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 22:51:06,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:06,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16159739] [2020-11-29 22:51:06,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:07,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:07,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:07,381 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:51:07,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:07,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095027, now seen corresponding path program 1 times [2020-11-29 22:51:07,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:07,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51710007] [2020-11-29 22:51:07,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:07,397 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:07,410 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:07,420 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:51:07,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:07,430 INFO L82 PathProgramCache]: Analyzing trace with hash 41183911, now seen corresponding path program 1 times [2020-11-29 22:51:07,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:07,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048275833] [2020-11-29 22:51:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:51:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:51:07,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048275833] [2020-11-29 22:51:07,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:51:07,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:51:07,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87254544] [2020-11-29 22:51:07,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:51:07,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:51:07,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:51:07,730 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 6 states. [2020-11-29 22:51:08,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:51:08,018 INFO L93 Difference]: Finished difference Result 192 states and 264 transitions. [2020-11-29 22:51:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:51:08,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 192 states and 264 transitions. [2020-11-29 22:51:08,029 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 121 [2020-11-29 22:51:08,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 192 states to 171 states and 243 transitions. [2020-11-29 22:51:08,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2020-11-29 22:51:08,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2020-11-29 22:51:08,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 243 transitions. [2020-11-29 22:51:08,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:51:08,055 INFO L691 BuchiCegarLoop]: Abstraction has 171 states and 243 transitions. [2020-11-29 22:51:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 243 transitions. [2020-11-29 22:51:08,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 108. [2020-11-29 22:51:08,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-29 22:51:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2020-11-29 22:51:08,107 INFO L714 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2020-11-29 22:51:08,107 INFO L594 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2020-11-29 22:51:08,108 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:51:08,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states and 153 transitions. [2020-11-29 22:51:08,113 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2020-11-29 22:51:08,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:51:08,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:51:08,115 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:51:08,115 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:51:08,116 INFO L794 eck$LassoCheckResult]: Stem: 325#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 291#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 292#L876 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 353#L884 main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 354#L840 assume 0 != main_~tmp~6; 351#L814 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 341#L897-1 [2020-11-29 22:51:08,118 INFO L796 eck$LassoCheckResult]: Loop: 341#L897-1 assume !false; 328#L699 assume test_~splverifierCounter~0 < 4; 329#L700 test_~tmp~5 := test_#t~nondet71;havoc test_#t~nondet71; 345#L708 assume !(0 != test_~tmp~5); 347#L708-1 test_~tmp___0~1 := test_#t~nondet72;havoc test_#t~nondet72; 336#L718 assume !(0 != test_~tmp___0~1); 337#L718-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 310#L728 assume 0 != test_~tmp___2~0; 311#L734-1 assume !(0 != ~pumpRunning~0); 331#L518 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 348#L550 assume !(0 != ~pumpRunning~0); 349#L525 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 317#L490 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 318#L897 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 341#L897-1 [2020-11-29 22:51:08,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:08,119 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 22:51:08,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:08,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136878577] [2020-11-29 22:51:08,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:08,190 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:08,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:08,284 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:51:08,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:08,285 INFO L82 PathProgramCache]: Analyzing trace with hash -353331267, now seen corresponding path program 1 times [2020-11-29 22:51:08,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:08,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116034698] [2020-11-29 22:51:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:08,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:08,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:08,313 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:51:08,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:08,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708259, now seen corresponding path program 1 times [2020-11-29 22:51:08,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:08,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690291274] [2020-11-29 22:51:08,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:08,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:51:08,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:51:08,467 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:52:21,807 WARN L193 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 22:53:09,731 WARN L193 SmtUtils]: Spent 47.91 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 22:53:09,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:53:09 BoogieIcfgContainer [2020-11-29 22:53:09,890 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:53:09,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:53:09,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:53:09,891 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:53:09,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:51:06" (3/4) ... [2020-11-29 22:53:09,894 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:53:09,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e00015e-aa8f-4360-b6ee-95da90eee64f/bin/uautomizer/witness.graphml [2020-11-29 22:53:09,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:53:09,954 INFO L168 Benchmark]: Toolchain (without parser) took 125142.01 ms. Allocated memory was 90.2 MB in the beginning and 169.9 MB in the end (delta: 79.7 MB). Free memory was 59.1 MB in the beginning and 127.3 MB in the end (delta: -68.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:09,958 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 90.2 MB. Free memory was 47.9 MB in the beginning and 47.8 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:53:09,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.30 ms. Allocated memory is still 90.2 MB. Free memory was 58.9 MB in the beginning and 56.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:09,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.36 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 54.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:09,960 INFO L168 Benchmark]: Boogie Preprocessor took 35.26 ms. Allocated memory is still 90.2 MB. Free memory was 54.0 MB in the beginning and 51.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:09,961 INFO L168 Benchmark]: RCFGBuilder took 1155.39 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 51.9 MB in the beginning and 63.5 MB in the end (delta: -11.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:09,963 INFO L168 Benchmark]: BuchiAutomizer took 123186.09 ms. Allocated memory was 119.5 MB in the beginning and 169.9 MB in the end (delta: 50.3 MB). Free memory was 62.9 MB in the beginning and 129.4 MB in the end (delta: -66.5 MB). Peak memory consumption was 72.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:09,963 INFO L168 Benchmark]: Witness Printer took 62.02 ms. Allocated memory is still 169.9 MB. Free memory was 129.4 MB in the beginning and 127.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:53:09,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 90.2 MB. Free memory was 47.9 MB in the beginning and 47.8 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 597.30 ms. Allocated memory is still 90.2 MB. Free memory was 58.9 MB in the beginning and 56.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.36 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 54.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.26 ms. Allocated memory is still 90.2 MB. Free memory was 54.0 MB in the beginning and 51.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1155.39 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 51.9 MB in the beginning and 63.5 MB in the end (delta: -11.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 123186.09 ms. Allocated memory was 119.5 MB in the beginning and 169.9 MB in the end (delta: 50.3 MB). Free memory was 62.9 MB in the beginning and 129.4 MB in the end (delta: -66.5 MB). Peak memory consumption was 72.9 MB. Max. memory is 16.1 GB. * Witness Printer took 62.02 ms. Allocated memory is still 169.9 MB. Free memory was 129.4 MB in the beginning and 127.3 MB in the end (delta: 2.1 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 6 locations. The remainder module has 108 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 123.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 122.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 63 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 108 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 98 SDtfs, 370 SDslu, 524 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 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: 698]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18584} State at position 1 is {NULL=0, NULL=0, NULL=48386, NULL=0, NULL=18584, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f5be0d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@201c0575=0, NULL=0, NULL=0, NULL=18585, NULL=48388, NULL=0, retValue_acc=0, methaneLevelCritical=0, NULL=48391, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@338140ca=0, retValue_acc=1, NULL=0, NULL=0, tmp=0, NULL=0, tmp___1=0, NULL=48380, NULL=0, NULL=0, NULL=48381, NULL=48399, NULL=48389, cleanupTimeShifts=4, NULL=48382, NULL=48398, NULL=48392, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=48390, \result=1, NULL=0, NULL=0, NULL=0, NULL=48387, NULL=0, NULL=0, NULL=18588, \result=1, head=0, pumpRunning=0, NULL=18586, NULL=48383, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=48394, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@254cbb3e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bc14c64=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@452ba236=0, NULL=48384, NULL=48378, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f687beb=0, NULL=48396, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d05a365=0, tmp=1, tmp___2=51, retValue_acc=1, NULL=48395, tmp___0=0, NULL=48397, splverifierCounter=0, NULL=0, NULL=0, NULL=48401, NULL=48379, tmp=0, head=0, NULL=0, NULL=0, NULL=18587, NULL=0, NULL=0, NULL=48400, NULL=48385, NULL=48393} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L510] int pumpRunning = 0; [L511] int systemActive = 1; [L755] int cleanupTimeShifts = 4; [L831] int retValue_acc ; [L832] int tmp ; [L880] int retValue_acc ; [L883] retValue_acc = 1 [L884] return (retValue_acc); [L838] tmp = valid_product() [L840] COND TRUE \read(tmp) [L689] int splverifierCounter ; [L690] int tmp ; [L691] int tmp___0 ; [L692] int tmp___1 ; [L693] int tmp___2 ; [L696] splverifierCounter = 0 Loop: [L698] COND TRUE 1 [L700] COND TRUE splverifierCounter < 4 [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) [L518] COND FALSE !(\read(pumpRunning)) [L525] COND TRUE \read(systemActive) [L547] int tmp ; [L550] COND FALSE !(\read(pumpRunning)) [L890] int tmp ; [L891] int tmp___0 ; [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L895] tmp = getWaterLevel() [L897] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...