./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.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_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/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 6bc56b3d4460bea28e0863848945154ca9602d93 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:39:26,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:39:26,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:39:26,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:39:26,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:39:26,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:39:26,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:39:26,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:39:26,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:39:26,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:39:26,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:39:26,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:39:26,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:39:26,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:39:26,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:39:26,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:39:26,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:39:26,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:39:26,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:39:26,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:39:26,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:39:26,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:39:26,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:39:26,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:39:26,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:39:26,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:39:26,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:39:26,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:39:26,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:39:26,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:39:26,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:39:26,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:39:26,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:39:26,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:39:26,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:39:26,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:39:26,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:39:26,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:39:26,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:39:26,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:39:26,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:39:26,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:39:26,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:39:26,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:39:26,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:39:26,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:39:26,431 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:39:26,431 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:39:26,431 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:39:26,432 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:39:26,432 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:39:26,432 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:39:26,433 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:39:26,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:39:26,434 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:39:26,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:39:26,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:39:26,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:39:26,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:39:26,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:39:26,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:39:26,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:39:26,435 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:39:26,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:39:26,436 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:39:26,436 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:39:26,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:39:26,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:39:26,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:39:26,437 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:39:26,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:39:26,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:39:26,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:39:26,438 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:39:26,439 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:39:26,439 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_6e0ee625-838f-4447-9f9a-8258592fca3c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bc56b3d4460bea28e0863848945154ca9602d93 [2020-11-29 22:39:26,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:39:26,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:39:26,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:39:26,721 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:39:26,722 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:39:26,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2020-11-29 22:39:26,847 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/data/596558e96/dd35ac5c60b24737b951982d8b3f4ea6/FLAG90b7be0cb [2020-11-29 22:39:27,318 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:39:27,319 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2020-11-29 22:39:27,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/data/596558e96/dd35ac5c60b24737b951982d8b3f4ea6/FLAG90b7be0cb [2020-11-29 22:39:27,652 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/data/596558e96/dd35ac5c60b24737b951982d8b3f4ea6 [2020-11-29 22:39:27,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:39:27,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:39:27,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:39:27,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:39:27,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:39:27,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:39:27" (1/1) ... [2020-11-29 22:39:27,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf5b614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:27, skipping insertion in model container [2020-11-29 22:39:27,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:39:27" (1/1) ... [2020-11-29 22:39:27,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:39:27,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:39:28,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:39:28,074 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:39:28,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:39:28,192 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:39:28,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28 WrapperNode [2020-11-29 22:39:28,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:39:28,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:39:28,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:39:28,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:39:28,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... [2020-11-29 22:39:28,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... [2020-11-29 22:39:28,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:39:28,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:39:28,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:39:28,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:39:28,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... [2020-11-29 22:39:28,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... [2020-11-29 22:39:28,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... [2020-11-29 22:39:28,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... [2020-11-29 22:39:28,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... [2020-11-29 22:39:28,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... [2020-11-29 22:39:28,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... [2020-11-29 22:39:28,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:39:28,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:39:28,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:39:28,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:39:28,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/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 22:39:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:39:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:39:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:39:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:39:29,264 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:39:29,265 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-11-29 22:39:29,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:39:29 BoogieIcfgContainer [2020-11-29 22:39:29,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:39:29,270 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:39:29,270 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:39:29,274 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:39:29,274 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:39:29,275 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:39:27" (1/3) ... [2020-11-29 22:39:29,276 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f9b4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:39:29, skipping insertion in model container [2020-11-29 22:39:29,276 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:39:29,277 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:39:28" (2/3) ... [2020-11-29 22:39:29,277 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f9b4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:39:29, skipping insertion in model container [2020-11-29 22:39:29,277 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:39:29,278 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:39:29" (3/3) ... [2020-11-29 22:39:29,280 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-11-29 22:39:29,338 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:39:29,338 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:39:29,338 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:39:29,338 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:39:29,338 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:39:29,338 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:39:29,339 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:39:29,339 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:39:29,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-29 22:39:29,375 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 22:39:29,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:39:29,376 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:39:29,388 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:39:29,388 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:39:29,388 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:39:29,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-29 22:39:29,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 22:39:29,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:39:29,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:39:29,395 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:39:29,395 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:39:29,400 INFO L794 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 11#L-1true havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 20#L76true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 10#L84true main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 30#L176true assume 0 != main_~tmp~0; 75#L152true havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 17#L574-1true [2020-11-29 22:39:29,401 INFO L796 eck$LassoCheckResult]: Loop: 17#L574-1true assume !false; 36#L757true assume test_~splverifierCounter~0 < 4; 53#L758true test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 58#L766true assume !(0 != test_~tmp~6); 59#L766-1true test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 41#L776true assume !(0 != test_~tmp___0~1); 44#L776-1true test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 18#L786true assume 0 != test_~tmp___2~0; 65#L792-1true assume !(0 != ~pumpRunning~0); 60#L605true assume !(0 != ~systemActive~0); 48#L612true havoc __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_#t~ret45, __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 33#L856-1true __utac_acc__Specification3_spec__1_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret44;havoc __utac_acc__Specification3_spec__1_#t~ret44; 50#L568true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 17#L574-1true [2020-11-29 22:39:29,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:39:29,411 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 22:39:29,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:39:29,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807422504] [2020-11-29 22:39:29,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:39:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:29,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:29,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:29,793 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:39:29,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:39:29,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310530, now seen corresponding path program 1 times [2020-11-29 22:39:29,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:39:29,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712055732] [2020-11-29 22:39:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:39:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:29,804 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:29,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:29,814 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:39:29,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:39:29,816 INFO L82 PathProgramCache]: Analyzing trace with hash 40968408, now seen corresponding path program 1 times [2020-11-29 22:39:29,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:39:29,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001590830] [2020-11-29 22:39:29,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:39:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:39:30,043 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 22:39:30,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001590830] [2020-11-29 22:39:30,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:39:30,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:39:30,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030277376] [2020-11-29 22:39:30,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:39:30,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:39:30,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:39:30,164 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 6 states. [2020-11-29 22:39:30,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:39:30,478 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2020-11-29 22:39:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:39:30,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 273 transitions. [2020-11-29 22:39:30,498 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 125 [2020-11-29 22:39:30,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 177 states and 252 transitions. [2020-11-29 22:39:30,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2020-11-29 22:39:30,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2020-11-29 22:39:30,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 252 transitions. [2020-11-29 22:39:30,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:39:30,522 INFO L691 BuchiCegarLoop]: Abstraction has 177 states and 252 transitions. [2020-11-29 22:39:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 252 transitions. [2020-11-29 22:39:30,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 114. [2020-11-29 22:39:30,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-29 22:39:30,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2020-11-29 22:39:30,568 INFO L714 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-11-29 22:39:30,569 INFO L594 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-11-29 22:39:30,569 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:39:30,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2020-11-29 22:39:30,571 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2020-11-29 22:39:30,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:39:30,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:39:30,573 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:39:30,573 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:39:30,573 INFO L794 eck$LassoCheckResult]: Stem: 342#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 311#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 312#L76 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 307#L84 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 308#L176 assume 0 != main_~tmp~0; 329#L152 havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 314#L574-1 [2020-11-29 22:39:30,573 INFO L796 eck$LassoCheckResult]: Loop: 314#L574-1 assume !false; 320#L757 assume test_~splverifierCounter~0 < 4; 338#L758 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 354#L766 assume !(0 != test_~tmp~6); 356#L766-1 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 343#L776 assume !(0 != test_~tmp___0~1); 344#L776-1 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 321#L786 assume 0 != test_~tmp___2~0; 322#L792-1 assume !(0 != ~pumpRunning~0); 319#L605 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 347#L637 assume !(0 != ~pumpRunning~0); 348#L612 havoc __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_#t~ret45, __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 333#L856-1 __utac_acc__Specification3_spec__1_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret44;havoc __utac_acc__Specification3_spec__1_#t~ret44; 334#L568 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 314#L574-1 [2020-11-29 22:39:30,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:39:30,574 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 22:39:30,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:39:30,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23921876] [2020-11-29 22:39:30,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:39:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:30,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:30,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:30,736 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:39:30,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:39:30,737 INFO L82 PathProgramCache]: Analyzing trace with hash -353546770, now seen corresponding path program 1 times [2020-11-29 22:39:30,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:39:30,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441329817] [2020-11-29 22:39:30,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:39:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:30,743 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:30,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:30,750 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:39:30,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:39:30,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492756, now seen corresponding path program 1 times [2020-11-29 22:39:30,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:39:30,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123506314] [2020-11-29 22:39:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:39:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:39:30,816 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 22:39:30,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123506314] [2020-11-29 22:39:30,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:39:30,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:39:30,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201275475] [2020-11-29 22:39:30,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:39:30,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:39:30,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:39:30,879 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. cyclomatic complexity: 51 Second operand 5 states. [2020-11-29 22:39:31,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:39:31,071 INFO L93 Difference]: Finished difference Result 367 states and 533 transitions. [2020-11-29 22:39:31,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:39:31,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 533 transitions. [2020-11-29 22:39:31,078 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 271 [2020-11-29 22:39:31,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 533 transitions. [2020-11-29 22:39:31,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2020-11-29 22:39:31,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2020-11-29 22:39:31,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 533 transitions. [2020-11-29 22:39:31,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:39:31,090 INFO L691 BuchiCegarLoop]: Abstraction has 367 states and 533 transitions. [2020-11-29 22:39:31,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 533 transitions. [2020-11-29 22:39:31,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 222. [2020-11-29 22:39:31,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-11-29 22:39:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 310 transitions. [2020-11-29 22:39:31,114 INFO L714 BuchiCegarLoop]: Abstraction has 222 states and 310 transitions. [2020-11-29 22:39:31,114 INFO L594 BuchiCegarLoop]: Abstraction has 222 states and 310 transitions. [2020-11-29 22:39:31,114 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:39:31,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 310 transitions. [2020-11-29 22:39:31,116 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 160 [2020-11-29 22:39:31,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:39:31,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:39:31,117 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:39:31,117 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:39:31,117 INFO L794 eck$LassoCheckResult]: Stem: 848#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 810#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 811#L76 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 806#L84 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 807#L176 assume 0 != main_~tmp~0; 831#L152 havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 813#L574-1 [2020-11-29 22:39:31,118 INFO L796 eck$LassoCheckResult]: Loop: 813#L574-1 assume !false; 820#L757 assume test_~splverifierCounter~0 < 4; 983#L758 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 982#L766 assume !(0 != test_~tmp~6); 871#L766-1 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 849#L776 assume !(0 != test_~tmp___0~1); 850#L776-1 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 821#L786 assume 0 != test_~tmp___2~0; 822#L792-1 assume !(0 != ~pumpRunning~0); 989#L605 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 854#L637 assume !(0 != ~pumpRunning~0); 855#L612 havoc __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_#t~ret45, __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 861#L856-1 __utac_acc__Specification3_spec__1_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret44;havoc __utac_acc__Specification3_spec__1_#t~ret44; 862#L568 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 863#L888 __utac_acc__Specification3_spec__1_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret45;havoc __utac_acc__Specification3_spec__1_#t~ret45; 812#L574 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 813#L574-1 [2020-11-29 22:39:31,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:39:31,118 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 22:39:31,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:39:31,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252241165] [2020-11-29 22:39:31,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:39:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:31,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:31,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:31,262 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:39:31,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:39:31,263 INFO L82 PathProgramCache]: Analyzing trace with hash -456023614, now seen corresponding path program 1 times [2020-11-29 22:39:31,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:39:31,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60804377] [2020-11-29 22:39:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:39:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:31,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:31,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:31,277 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:39:31,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:39:31,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1828298392, now seen corresponding path program 1 times [2020-11-29 22:39:31,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:39:31,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367803050] [2020-11-29 22:39:31,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:39:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:31,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:39:31,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:39:31,400 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:40:41,740 WARN L193 SmtUtils]: Spent 1.17 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 22:41:32,366 WARN L193 SmtUtils]: Spent 50.62 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 22:41:32,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:41:32 BoogieIcfgContainer [2020-11-29 22:41:32,632 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:41:32,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:41:32,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:41:32,633 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:41:32,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:39:29" (3/4) ... [2020-11-29 22:41:32,636 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:41:32,695 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6e0ee625-838f-4447-9f9a-8258592fca3c/bin/uautomizer/witness.graphml [2020-11-29 22:41:32,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:41:32,697 INFO L168 Benchmark]: Toolchain (without parser) took 125040.67 ms. Allocated memory was 90.2 MB in the beginning and 161.5 MB in the end (delta: 71.3 MB). Free memory was 54.4 MB in the beginning and 89.0 MB in the end (delta: -34.5 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:32,698 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:41:32,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.69 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 78.8 MB in the end (delta: -24.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:32,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.91 ms. Allocated memory is still 109.1 MB. Free memory was 78.8 MB in the beginning and 75.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:32,700 INFO L168 Benchmark]: Boogie Preprocessor took 38.90 ms. Allocated memory is still 109.1 MB. Free memory was 75.6 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:32,701 INFO L168 Benchmark]: RCFGBuilder took 957.04 ms. Allocated memory is still 109.1 MB. Free memory was 73.5 MB in the beginning and 77.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:32,702 INFO L168 Benchmark]: BuchiAutomizer took 123361.74 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 77.5 MB in the beginning and 90.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 90.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:32,703 INFO L168 Benchmark]: Witness Printer took 63.44 ms. Allocated memory is still 161.5 MB. Free memory was 90.9 MB in the beginning and 89.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:32,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 535.69 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 78.8 MB in the end (delta: -24.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.91 ms. Allocated memory is still 109.1 MB. Free memory was 78.8 MB in the beginning and 75.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.90 ms. Allocated memory is still 109.1 MB. Free memory was 75.6 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 957.04 ms. Allocated memory is still 109.1 MB. Free memory was 73.5 MB in the beginning and 77.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 123361.74 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 77.5 MB in the beginning and 90.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 90.9 MB. Max. memory is 16.1 GB. * Witness Printer took 63.44 ms. Allocated memory is still 161.5 MB. Free memory was 90.9 MB in the beginning and 89.0 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 222 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 123.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 122.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 208 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 222 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 221 SDtfs, 705 SDslu, 919 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 756]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=26490} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=26490, NULL=0, NULL=0, NULL=0, NULL=26503, NULL=26495, NULL=26496, NULL=26491, methaneLevelCritical=0, NULL=26512, NULL=26517, NULL=26492, tmp=0, tmp___1=0, NULL=26516, NULL=0, NULL=0, tmp___0=1, NULL=26514, NULL=26497, NULL=26502, cleanupTimeShifts=4, NULL=26494, tmp=0, NULL=26498, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=26513, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71bf3320=0, NULL=0, NULL=0, NULL=0, NULL=26511, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37b288ff=0, NULL=26507, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=26510, NULL=26515, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29fe95a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71fadec6=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ef71b3e=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=26508, NULL=0, retValue_acc=1, tmp___2=56, NULL=26493, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=26509, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32b9ad9b=0, NULL=26501, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6429a3f7=0, NULL=26500, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66790031=0, head=0, NULL=0, tmp=0, NULL=26518, NULL=26504, NULL=0, NULL=0, NULL=0, NULL=26506, NULL=26505, NULL=26499, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23e38e20=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L89] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L813] int waterLevel = 1; [L814] int methaneLevelCritical = 0; [L167] int retValue_acc ; [L168] int tmp ; [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L174] tmp = valid_product() [L176] COND TRUE \read(tmp) [L747] int splverifierCounter ; [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L751] int tmp___2 ; [L754] splverifierCounter = 0 Loop: [L756] COND TRUE 1 [L758] COND TRUE splverifierCounter < 4 [L764] tmp = __VERIFIER_nondet_int() [L766] COND FALSE !(\read(tmp)) [L774] tmp___0 = __VERIFIER_nondet_int() [L776] COND FALSE !(\read(tmp___0)) [L784] tmp___2 = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp___2) [L605] COND FALSE !(\read(pumpRunning)) [L612] COND TRUE \read(systemActive) [L634] int tmp ; [L637] COND FALSE !(\read(pumpRunning)) [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L852] int retValue_acc ; [L855] retValue_acc = methaneLevelCritical [L856] return (retValue_acc); [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L884] int retValue_acc ; [L887] retValue_acc = waterLevel [L888] return (retValue_acc); [L572] tmp___0 = getWaterLevel() [L574] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...