./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/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 ef0694c6828fdd41a19c9b426d075f4f4dde925f .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-11-15 20:54:34,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:54:34,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:54:34,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:54:34,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:54:34,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:54:34,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:54:34,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:54:34,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:54:34,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:54:34,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:54:34,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:54:34,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:54:34,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:54:34,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:54:34,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:54:34,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:54:34,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:54:34,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:54:34,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:54:34,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:54:34,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:54:34,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:54:34,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:54:34,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:54:34,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:54:34,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:54:34,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:54:34,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:54:34,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:54:34,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:54:34,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:54:34,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:54:34,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:54:34,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:54:34,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:54:34,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:54:34,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:54:34,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:54:34,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:54:34,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:54:34,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 20:54:34,498 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:54:34,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:54:34,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:54:34,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:54:34,501 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:54:34,501 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:54:34,501 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:54:34,502 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:54:34,502 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:54:34,502 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:54:34,503 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:54:34,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:54:34,504 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:54:34,504 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:54:34,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:54:34,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:54:34,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:54:34,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:54:34,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:54:34,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:54:34,506 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:54:34,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:54:34,506 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:54:34,506 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:54:34,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:54:34,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:54:34,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:54:34,507 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:54:34,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:54:34,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:54:34,508 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:54:34,509 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:54:34,509 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_cdda5062-07ae-4798-b621-f80b79d12089/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 -> ef0694c6828fdd41a19c9b426d075f4f4dde925f [2019-11-15 20:54:34,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:54:34,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:54:34,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:54:34,578 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:54:34,579 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:54:34,579 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2019-11-15 20:54:34,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/data/066f24f91/fdaffc1d8ea84f17a2b3f042e3ce4b13/FLAG75fc1e315 [2019-11-15 20:54:35,176 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:54:35,177 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2019-11-15 20:54:35,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/data/066f24f91/fdaffc1d8ea84f17a2b3f042e3ce4b13/FLAG75fc1e315 [2019-11-15 20:54:35,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/data/066f24f91/fdaffc1d8ea84f17a2b3f042e3ce4b13 [2019-11-15 20:54:35,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:54:35,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:54:35,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:54:35,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:54:35,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:54:35,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:54:35" (1/1) ... [2019-11-15 20:54:35,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24da03c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:35, skipping insertion in model container [2019-11-15 20:54:35,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:54:35" (1/1) ... [2019-11-15 20:54:35,520 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:54:35,566 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:54:35,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:54:35,938 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:54:36,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:54:36,118 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:54:36,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36 WrapperNode [2019-11-15 20:54:36,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:54:36,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:54:36,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:54:36,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:54:36,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... [2019-11-15 20:54:36,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... [2019-11-15 20:54:36,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:54:36,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:54:36,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:54:36,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:54:36,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... [2019-11-15 20:54:36,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... [2019-11-15 20:54:36,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... [2019-11-15 20:54:36,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... [2019-11-15 20:54:36,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... [2019-11-15 20:54:36,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... [2019-11-15 20:54:36,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... [2019-11-15 20:54:36,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:54:36,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:54:36,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:54:36,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:54:36,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/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 [2019-11-15 20:54:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:54:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 20:54:36,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:54:36,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:54:37,320 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:54:37,320 INFO L284 CfgBuilder]: Removed 196 assume(true) statements. [2019-11-15 20:54:37,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:54:37 BoogieIcfgContainer [2019-11-15 20:54:37,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:54:37,322 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:54:37,322 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:54:37,326 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:54:37,327 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:54:37,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:54:35" (1/3) ... [2019-11-15 20:54:37,328 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5302221d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:54:37, skipping insertion in model container [2019-11-15 20:54:37,329 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:54:37,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:54:36" (2/3) ... [2019-11-15 20:54:37,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5302221d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:54:37, skipping insertion in model container [2019-11-15 20:54:37,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:54:37,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:54:37" (3/3) ... [2019-11-15 20:54:37,332 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2019-11-15 20:54:37,390 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:54:37,391 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:54:37,392 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:54:37,392 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:54:37,392 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:54:37,392 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:54:37,392 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:54:37,393 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:54:37,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2019-11-15 20:54:37,481 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-15 20:54:37,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:54:37,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:54:37,492 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:54:37,492 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:54:37,492 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:54:37,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2019-11-15 20:54:37,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-15 20:54:37,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:54:37,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:54:37,516 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:54:37,516 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:54:37,529 INFO L791 eck$LassoCheckResult]: Stem: 109#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 16#L-1true havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 19#L103true 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; 32#L111true main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 88#L947true assume 0 != main_~tmp~9; 128#L924true havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L51-1true [2019-11-15 20:54:37,531 INFO L793 eck$LassoCheckResult]: Loop: 9#L51-1true assume !false; 114#L443true assume test_~splverifierCounter~0 < 4; 52#L444true test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 59#L452true assume !(0 != test_~tmp~5); 60#L452-1true test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 119#L462true assume !(0 != test_~tmp___0~2); 120#L462-1true test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 18#L472true assume 0 != test_~tmp___2~0; 127#L478-1true assume !(0 != ~pumpRunning~0); 125#L228true assume !(0 != ~systemActive~0); 48#L235true havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 113#L165-3true __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 13#L51true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 9#L51-1true [2019-11-15 20:54:37,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:37,539 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-15 20:54:37,549 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:37,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229035646] [2019-11-15 20:54:37,550 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:37,550 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:37,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:38,616 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:54:38,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:38,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1670724661, now seen corresponding path program 1 times [2019-11-15 20:54:38,618 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:38,618 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171349719] [2019-11-15 20:54:38,618 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:38,619 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:38,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:38,648 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:54:38,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:38,650 INFO L82 PathProgramCache]: Analyzing trace with hash 43554277, now seen corresponding path program 1 times [2019-11-15 20:54:38,651 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:38,651 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255265833] [2019-11-15 20:54:38,652 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:38,652 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:38,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:54:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:54:38,802 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255265833] [2019-11-15 20:54:38,803 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:54:38,803 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:54:38,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465842898] [2019-11-15 20:54:38,912 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:54:38,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:54:38,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:54:38,930 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 6 states. [2019-11-15 20:54:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:54:39,157 INFO L93 Difference]: Finished difference Result 300 states and 426 transitions. [2019-11-15 20:54:39,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:54:39,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 300 states and 426 transitions. [2019-11-15 20:54:39,173 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 193 [2019-11-15 20:54:39,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 300 states to 279 states and 405 transitions. [2019-11-15 20:54:39,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2019-11-15 20:54:39,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2019-11-15 20:54:39,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 405 transitions. [2019-11-15 20:54:39,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:54:39,205 INFO L688 BuchiCegarLoop]: Abstraction has 279 states and 405 transitions. [2019-11-15 20:54:39,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 405 transitions. [2019-11-15 20:54:39,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 162. [2019-11-15 20:54:39,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-15 20:54:39,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 234 transitions. [2019-11-15 20:54:39,274 INFO L711 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2019-11-15 20:54:39,274 INFO L591 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2019-11-15 20:54:39,274 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 20:54:39,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 234 transitions. [2019-11-15 20:54:39,277 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2019-11-15 20:54:39,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:54:39,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:54:39,279 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:54:39,279 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:54:39,280 INFO L791 eck$LassoCheckResult]: Stem: 566#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 467#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 468#L103 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; 472#L111 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 493#L947 assume 0 != main_~tmp~9; 551#L924 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 457#L51-1 [2019-11-15 20:54:39,280 INFO L793 eck$LassoCheckResult]: Loop: 457#L51-1 assume !false; 458#L443 assume test_~splverifierCounter~0 < 4; 516#L444 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 517#L452 assume !(0 != test_~tmp~5); 525#L452-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 526#L462 assume !(0 != test_~tmp___0~2); 539#L462-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 469#L472 assume 0 != test_~tmp___2~0; 470#L478-1 assume !(0 != ~pumpRunning~0); 479#L228 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 563#L286 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret13, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 490#L260-1 assume !(0 == ~pumpRunning~0); 491#L235 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 514#L165-3 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 463#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 457#L51-1 [2019-11-15 20:54:39,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:39,281 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-15 20:54:39,282 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:39,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185024144] [2019-11-15 20:54:39,283 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:39,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:39,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:39,759 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:54:39,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:39,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1966055757, now seen corresponding path program 1 times [2019-11-15 20:54:39,760 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:39,760 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625556578] [2019-11-15 20:54:39,761 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:39,761 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:39,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:54:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:54:39,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625556578] [2019-11-15 20:54:39,784 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:54:39,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:54:39,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960318610] [2019-11-15 20:54:39,785 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 20:54:39,785 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:54:39,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:54:39,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:54:39,786 INFO L87 Difference]: Start difference. First operand 162 states and 234 transitions. cyclomatic complexity: 75 Second operand 3 states. [2019-11-15 20:54:39,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:54:39,909 INFO L93 Difference]: Finished difference Result 201 states and 274 transitions. [2019-11-15 20:54:39,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:54:39,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 274 transitions. [2019-11-15 20:54:39,913 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2019-11-15 20:54:39,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 201 states and 274 transitions. [2019-11-15 20:54:39,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2019-11-15 20:54:39,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2019-11-15 20:54:39,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 274 transitions. [2019-11-15 20:54:39,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:54:39,918 INFO L688 BuchiCegarLoop]: Abstraction has 201 states and 274 transitions. [2019-11-15 20:54:39,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 274 transitions. [2019-11-15 20:54:39,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2019-11-15 20:54:39,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-11-15 20:54:39,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 274 transitions. [2019-11-15 20:54:39,928 INFO L711 BuchiCegarLoop]: Abstraction has 201 states and 274 transitions. [2019-11-15 20:54:39,928 INFO L591 BuchiCegarLoop]: Abstraction has 201 states and 274 transitions. [2019-11-15 20:54:39,929 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 20:54:39,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 274 transitions. [2019-11-15 20:54:39,931 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2019-11-15 20:54:39,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:54:39,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:54:39,932 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:54:39,933 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:54:39,933 INFO L791 eck$LassoCheckResult]: Stem: 939#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 837#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 838#L103 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; 842#L111 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 864#L947 assume 0 != main_~tmp~9; 925#L924 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 827#L51-1 [2019-11-15 20:54:39,933 INFO L793 eck$LassoCheckResult]: Loop: 827#L51-1 assume !false; 828#L443 assume test_~splverifierCounter~0 < 4; 889#L444 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 890#L452 assume !(0 != test_~tmp~5); 898#L452-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 899#L462 assume !(0 != test_~tmp___0~2); 912#L462-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 839#L472 assume 0 != test_~tmp___2~0; 840#L478-1 assume !(0 != ~pumpRunning~0); 943#L228 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 936#L286 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret13, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 861#L260-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 855#L205-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 856#L210-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 875#L405-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 910#L405-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 895#L411-1 processEnvironment__wrappee__methaneQuery_#t~ret13 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret13;havoc processEnvironment__wrappee__methaneQuery_#t~ret13; 896#L264-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 886#L235 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 887#L165-3 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 833#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 827#L51-1 [2019-11-15 20:54:39,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:39,934 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-15 20:54:39,934 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:39,935 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725843849] [2019-11-15 20:54:39,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:39,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:39,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:40,271 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:54:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:40,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1687938725, now seen corresponding path program 1 times [2019-11-15 20:54:40,272 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:40,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25842405] [2019-11-15 20:54:40,273 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:40,273 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:40,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:54:40,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:54:40,295 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25842405] [2019-11-15 20:54:40,295 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:54:40,295 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:54:40,295 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374938752] [2019-11-15 20:54:40,296 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 20:54:40,296 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:54:40,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:54:40,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:54:40,297 INFO L87 Difference]: Start difference. First operand 201 states and 274 transitions. cyclomatic complexity: 76 Second operand 4 states. [2019-11-15 20:54:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:54:40,435 INFO L93 Difference]: Finished difference Result 567 states and 762 transitions. [2019-11-15 20:54:40,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:54:40,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 567 states and 762 transitions. [2019-11-15 20:54:40,442 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 410 [2019-11-15 20:54:40,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 567 states to 567 states and 762 transitions. [2019-11-15 20:54:40,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 567 [2019-11-15 20:54:40,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 567 [2019-11-15 20:54:40,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 567 states and 762 transitions. [2019-11-15 20:54:40,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:54:40,450 INFO L688 BuchiCegarLoop]: Abstraction has 567 states and 762 transitions. [2019-11-15 20:54:40,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states and 762 transitions. [2019-11-15 20:54:40,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 213. [2019-11-15 20:54:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2019-11-15 20:54:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 286 transitions. [2019-11-15 20:54:40,463 INFO L711 BuchiCegarLoop]: Abstraction has 213 states and 286 transitions. [2019-11-15 20:54:40,463 INFO L591 BuchiCegarLoop]: Abstraction has 213 states and 286 transitions. [2019-11-15 20:54:40,463 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 20:54:40,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 286 transitions. [2019-11-15 20:54:40,465 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 150 [2019-11-15 20:54:40,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:54:40,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:54:40,466 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:54:40,466 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:54:40,466 INFO L791 eck$LassoCheckResult]: Stem: 1727#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 1616#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 1617#L103 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; 1621#L111 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 1647#L947 assume 0 != main_~tmp~9; 1713#L924 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1604#L51-1 [2019-11-15 20:54:40,466 INFO L793 eck$LassoCheckResult]: Loop: 1604#L51-1 assume !false; 1605#L443 assume test_~splverifierCounter~0 < 4; 1730#L444 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 1805#L452 assume !(0 != test_~tmp~5); 1803#L452-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 1802#L462 assume !(0 != test_~tmp___0~2); 1800#L462-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 1798#L472 assume 0 != test_~tmp___2~0; 1797#L478-1 assume !(0 != ~pumpRunning~0); 1733#L228 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1724#L286 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret13, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1644#L260-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 1636#L205-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 1637#L210-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 1696#L405-3 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~1 := 1; 1697#L405-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1681#L411-1 processEnvironment__wrappee__methaneQuery_#t~ret13 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret13;havoc processEnvironment__wrappee__methaneQuery_#t~ret13; 1682#L264-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 1675#L235 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 1729#L165-3 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 1611#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 1604#L51-1 [2019-11-15 20:54:40,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:40,467 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-15 20:54:40,467 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:40,467 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672626560] [2019-11-15 20:54:40,467 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:40,467 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:40,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:40,699 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:54:40,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:40,700 INFO L82 PathProgramCache]: Analyzing trace with hash 87068637, now seen corresponding path program 1 times [2019-11-15 20:54:40,700 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:40,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753436470] [2019-11-15 20:54:40,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:40,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:40,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:54:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:54:40,730 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753436470] [2019-11-15 20:54:40,730 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:54:40,730 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:54:40,730 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887487257] [2019-11-15 20:54:40,730 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 20:54:40,731 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:54:40,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:54:40,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:54:40,731 INFO L87 Difference]: Start difference. First operand 213 states and 286 transitions. cyclomatic complexity: 76 Second operand 5 states. [2019-11-15 20:54:40,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:54:40,906 INFO L93 Difference]: Finished difference Result 525 states and 699 transitions. [2019-11-15 20:54:40,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:54:40,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 699 transitions. [2019-11-15 20:54:40,912 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 382 [2019-11-15 20:54:40,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 525 states and 699 transitions. [2019-11-15 20:54:40,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 525 [2019-11-15 20:54:40,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 525 [2019-11-15 20:54:40,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 525 states and 699 transitions. [2019-11-15 20:54:40,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:54:40,927 INFO L688 BuchiCegarLoop]: Abstraction has 525 states and 699 transitions. [2019-11-15 20:54:40,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states and 699 transitions. [2019-11-15 20:54:40,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 231. [2019-11-15 20:54:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-11-15 20:54:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 304 transitions. [2019-11-15 20:54:40,941 INFO L711 BuchiCegarLoop]: Abstraction has 231 states and 304 transitions. [2019-11-15 20:54:40,941 INFO L591 BuchiCegarLoop]: Abstraction has 231 states and 304 transitions. [2019-11-15 20:54:40,941 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 20:54:40,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 304 transitions. [2019-11-15 20:54:40,943 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 162 [2019-11-15 20:54:40,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:54:40,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:54:40,955 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:54:40,955 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:54:40,956 INFO L791 eck$LassoCheckResult]: Stem: 2492#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 2369#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 2370#L103 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; 2374#L111 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 2401#L947 assume 0 != main_~tmp~9; 2474#L924 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2357#L51-1 [2019-11-15 20:54:40,956 INFO L793 eck$LassoCheckResult]: Loop: 2357#L51-1 assume !false; 2358#L443 assume test_~splverifierCounter~0 < 4; 2559#L444 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 2575#L452 assume !(0 != test_~tmp~5); 2573#L452-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 2572#L462 assume !(0 != test_~tmp___0~2); 2570#L462-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 2568#L472 assume 0 != test_~tmp___2~0; 2501#L478-1 assume !(0 != ~pumpRunning~0); 2500#L228 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2489#L286 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret13, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 2397#L260-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 2389#L205-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 2391#L210-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 2412#L405-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 2505#L405-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 2437#L411-1 processEnvironment__wrappee__methaneQuery_#t~ret13 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret13;havoc processEnvironment__wrappee__methaneQuery_#t~ret13; 2438#L264-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 2423#L235 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 2424#L165-3 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 2364#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 2357#L51-1 [2019-11-15 20:54:40,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:40,957 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 5 times [2019-11-15 20:54:40,957 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:40,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614914041] [2019-11-15 20:54:40,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:40,958 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:40,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:41,241 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:54:41,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:41,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1926970201, now seen corresponding path program 1 times [2019-11-15 20:54:41,242 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:41,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165445381] [2019-11-15 20:54:41,242 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:41,242 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:41,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:41,253 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:54:41,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:54:41,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1911925901, now seen corresponding path program 1 times [2019-11-15 20:54:41,254 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:54:41,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648572157] [2019-11-15 20:54:41,254 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:41,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:54:41,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:54:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:54:41,503 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:54:41,667 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-15 20:55:01,039 WARN L191 SmtUtils]: Spent 19.28 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-11-15 20:55:14,484 WARN L191 SmtUtils]: Spent 13.44 s on a formula simplification that was a NOOP. DAG size: 449 [2019-11-15 20:55:14,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:55:14 BoogieIcfgContainer [2019-11-15 20:55:14,544 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:55:14,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:55:14,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:55:14,545 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:55:14,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:54:37" (3/4) ... [2019-11-15 20:55:14,548 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 20:55:14,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cdda5062-07ae-4798-b621-f80b79d12089/bin/uautomizer/witness.graphml [2019-11-15 20:55:14,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:55:14,611 INFO L168 Benchmark]: Toolchain (without parser) took 39119.80 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 361.2 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -214.2 MB). Peak memory consumption was 147.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:14,611 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:55:14,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -162.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:14,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:14,613 INFO L168 Benchmark]: Boogie Preprocessor took 71.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:14,614 INFO L168 Benchmark]: RCFGBuilder took 1032.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:14,615 INFO L168 Benchmark]: BuchiAutomizer took 37222.09 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 231.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -138.1 MB). Peak memory consumption was 400.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:14,615 INFO L168 Benchmark]: Witness Printer took 65.15 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:55:14,618 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 617.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -162.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1032.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37222.09 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 231.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -138.1 MB). Peak memory consumption was 400.7 MB. Max. memory is 11.5 GB. * Witness Printer took 65.15 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 231 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 36.0s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 765 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 231 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 937 SDtfs, 1680 SDslu, 1782 SDs, 0 SdLazy, 229 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 442]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=-17, NULL=0, NULL=0, NULL=0, NULL=-10, methaneLevelCritical=0, NULL=-21, tmp___0=0, NULL=0, NULL=0, tmp=0, NULL=0, NULL=0, NULL=-16, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@438aa1b7=0, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=-23, tmp___0=0, NULL=-6, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ac7bbca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@541380af=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ad5d1bd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c5b6c7c=0, NULL=0, systemActive=1, waterLevel=1, NULL=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51912deb=0, NULL=0, NULL=0, NULL=-8, NULL=0, NULL=-2, \result=0, retValue_acc=0, NULL=0, NULL=-13, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=-25, \result=1, NULL=-5, head=0, pumpRunning=0, NULL=-11, \result=0, retValue_acc=1, NULL=-7, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ab6aef8=0, NULL=0, tmp=0, \result=1, NULL=-15, NULL=-22, NULL=-18, tmp=1, retValue_acc=1, tmp___2=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bdfea40=0, tmp___0=0, NULL=-9, NULL=-3, splverifierCounter=0, NULL=0, \result=0, NULL=-12, NULL=-20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16b68025=0, NULL=-4, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=-19, NULL=0, tmp=1, NULL=0, NULL=-24, NULL=0, NULL=-14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19a0336a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int waterLevel = 1; [L123] int methaneLevelCritical = 0; [L221] int pumpRunning = 0; [L222] int systemActive = 1; [L668] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L865] int cleanupTimeShifts = 4; [L938] int retValue_acc ; [L939] int tmp ; [L107] int retValue_acc ; [L110] retValue_acc = 1 [L111] return (retValue_acc); [L945] tmp = valid_product() [L947] COND TRUE \read(tmp) [L433] int splverifierCounter ; [L434] int tmp ; [L435] int tmp___0 ; [L436] int tmp___1 ; [L437] int tmp___2 ; [L440] splverifierCounter = 0 Loop: [L442] COND TRUE 1 [L444] COND TRUE splverifierCounter < 4 [L450] tmp = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp)) [L460] tmp___0 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___0)) [L470] tmp___2 = __VERIFIER_nondet_int() [L472] COND TRUE \read(tmp___2) [L228] COND FALSE !(\read(pumpRunning)) [L235] COND TRUE \read(systemActive) [L283] int tmp ; [L286] COND FALSE !(\read(pumpRunning)) [L257] int tmp ; [L260] COND TRUE ! pumpRunning [L397] int retValue_acc ; [L398] int tmp ; [L399] int tmp___0 ; [L202] int retValue_acc ; [L205] COND TRUE waterLevel < 2 [L206] retValue_acc = 1 [L207] return (retValue_acc); [L403] tmp = isHighWaterSensorDry() [L405] COND TRUE \read(tmp) [L406] tmp___0 = 0 [L410] retValue_acc = tmp___0 [L411] return (retValue_acc); [L262] tmp = isHighWaterLevel() [L264] COND FALSE !(\read(tmp)) [L44] int tmp ; [L45] int tmp___0 ; [L161] int retValue_acc ; [L164] retValue_acc = methaneLevelCritical [L165] return (retValue_acc); [L49] tmp = isMethaneLevelCritical() [L51] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...