./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.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_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/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 69211a6a9810795915a638c419bc12fc6aa00ac5 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:55:12,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:55:12,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:55:12,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:55:12,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:55:12,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:55:12,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:55:12,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:55:12,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:55:12,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:55:12,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:55:12,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:55:12,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:55:12,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:55:12,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:55:12,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:55:12,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:55:12,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:55:12,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:55:12,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:55:12,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:55:12,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:55:12,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:55:12,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:55:12,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:55:12,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:55:12,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:55:12,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:55:12,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:55:12,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:55:12,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:55:12,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:55:12,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:55:12,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:55:12,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:55:12,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:55:12,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:55:12,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:55:12,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:55:12,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:55:12,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:55:12,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 23:55:12,530 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:55:12,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:55:12,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:55:12,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:55:12,532 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:55:12,532 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 23:55:12,532 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 23:55:12,532 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 23:55:12,533 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 23:55:12,533 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 23:55:12,533 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 23:55:12,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:55:12,534 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:55:12,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:55:12,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:55:12,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:55:12,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:55:12,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 23:55:12,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 23:55:12,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 23:55:12,535 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:55:12,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:55:12,536 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 23:55:12,536 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:55:12,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 23:55:12,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:55:12,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:55:12,537 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 23:55:12,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:55:12,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:55:12,538 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 23:55:12,539 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 23:55:12,539 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_b6adfb19-1e2a-4d1b-859d-065353523eb6/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 -> 69211a6a9810795915a638c419bc12fc6aa00ac5 [2019-11-15 23:55:12,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:55:12,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:55:12,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:55:12,577 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:55:12,577 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:55:12,577 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2019-11-15 23:55:12,625 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/data/24968dfed/c1fa9a764a9b4be6a8f0820ffc751c59/FLAG8fd4079b8 [2019-11-15 23:55:13,066 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:55:13,067 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2019-11-15 23:55:13,079 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/data/24968dfed/c1fa9a764a9b4be6a8f0820ffc751c59/FLAG8fd4079b8 [2019-11-15 23:55:13,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/data/24968dfed/c1fa9a764a9b4be6a8f0820ffc751c59 [2019-11-15 23:55:13,413 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:55:13,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:55:13,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:55:13,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:55:13,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:55:13,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:13,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc9a77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13, skipping insertion in model container [2019-11-15 23:55:13,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:13,428 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:55:13,464 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:55:13,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:55:13,858 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:55:13,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:55:13,968 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:55:13,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13 WrapperNode [2019-11-15 23:55:13,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:55:13,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:55:13,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:55:13,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:55:13,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:13,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:14,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:55:14,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:55:14,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:55:14,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:55:14,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:14,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:14,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:14,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:14,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:14,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:14,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... [2019-11-15 23:55:14,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:55:14,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:55:14,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:55:14,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:55:14,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/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 23:55:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:55:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 23:55:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:55:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:55:14,969 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:55:14,969 INFO L284 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-15 23:55:14,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:55:14 BoogieIcfgContainer [2019-11-15 23:55:14,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:55:14,971 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 23:55:14,971 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 23:55:14,974 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 23:55:14,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:55:14,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 11:55:13" (1/3) ... [2019-11-15 23:55:14,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2387aec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:55:14, skipping insertion in model container [2019-11-15 23:55:14,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:55:14,978 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:13" (2/3) ... [2019-11-15 23:55:14,979 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2387aec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:55:14, skipping insertion in model container [2019-11-15 23:55:14,979 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:55:14,980 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:55:14" (3/3) ... [2019-11-15 23:55:14,982 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2019-11-15 23:55:15,024 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 23:55:15,024 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 23:55:15,024 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 23:55:15,024 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:55:15,025 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:55:15,025 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 23:55:15,025 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:55:15,025 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 23:55:15,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-11-15 23:55:15,065 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-11-15 23:55:15,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:55:15,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:55:15,073 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:55:15,074 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:55:15,074 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 23:55:15,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-11-15 23:55:15,080 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-11-15 23:55:15,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:55:15,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:55:15,081 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:55:15,082 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:55:15,087 INFO L791 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 16#L-1true havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 18#L65true 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; 12#L73true main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 8#L800true assume 0 != main_~tmp~6; 21#L775true ~switchedOnBeforeTS~0 := 0; 81#L821true havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 38#L842-1true [2019-11-15 23:55:15,088 INFO L793 eck$LassoCheckResult]: Loop: 38#L842-1true assume !false; 19#L658true assume test_~splverifierCounter~0 < 4; 42#L659true test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 71#L667true assume !(0 != test_~tmp~5); 74#L667-1true test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 50#L677true assume !(0 != test_~tmp___0~1); 32#L677-1true test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 31#L687true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 35#L695-1true havoc __utac_acc__Specification5_spec__2_#t~ret60;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 73#L195true __utac_acc__Specification5_spec__2_#t~ret60 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret60;havoc __utac_acc__Specification5_spec__2_#t~ret60; 65#L831true assume !(0 != ~pumpRunning~0); 51#L110true assume !(0 != ~systemActive~0); 40#L117true havoc __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_#t~ret62, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 7#L939true __utac_acc__Specification5_spec__3_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 63#L842true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 38#L842-1true [2019-11-15 23:55:15,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:15,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-15 23:55:15,101 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:15,101 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346328591] [2019-11-15 23:55:15,102 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:15,102 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:15,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:15,881 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:55:15,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:15,882 INFO L82 PathProgramCache]: Analyzing trace with hash 675287606, now seen corresponding path program 1 times [2019-11-15 23:55:15,882 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:15,883 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315329235] [2019-11-15 23:55:15,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:15,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:15,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:55:15,933 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 23:55:15,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315329235] [2019-11-15 23:55:15,934 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:55:15,935 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:55:15,935 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593967926] [2019-11-15 23:55:15,940 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 23:55:15,941 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:55:15,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:55:15,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:55:15,958 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-11-15 23:55:16,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:55:16,038 INFO L93 Difference]: Finished difference Result 165 states and 233 transitions. [2019-11-15 23:55:16,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:55:16,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 233 transitions. [2019-11-15 23:55:16,048 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2019-11-15 23:55:16,063 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 151 states and 218 transitions. [2019-11-15 23:55:16,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2019-11-15 23:55:16,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2019-11-15 23:55:16,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 218 transitions. [2019-11-15 23:55:16,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:55:16,070 INFO L688 BuchiCegarLoop]: Abstraction has 151 states and 218 transitions. [2019-11-15 23:55:16,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 218 transitions. [2019-11-15 23:55:16,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2019-11-15 23:55:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-15 23:55:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 215 transitions. [2019-11-15 23:55:16,120 INFO L711 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2019-11-15 23:55:16,120 INFO L591 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2019-11-15 23:55:16,121 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 23:55:16,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 215 transitions. [2019-11-15 23:55:16,124 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2019-11-15 23:55:16,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:55:16,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:55:16,125 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:55:16,125 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:55:16,126 INFO L791 eck$LassoCheckResult]: Stem: 315#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 281#L-1 havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 282#L65 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; 278#L73 main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 270#L800 assume 0 != main_~tmp~6; 271#L775 ~switchedOnBeforeTS~0 := 0; 290#L821 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 358#L842-1 [2019-11-15 23:55:16,126 INFO L793 eck$LassoCheckResult]: Loop: 358#L842-1 assume !false; 372#L658 assume test_~splverifierCounter~0 < 4; 316#L659 test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 317#L667 assume !(0 != test_~tmp~5); 352#L667-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 353#L677 assume !(0 != test_~tmp___0~1); 369#L677-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 368#L687 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 305#L695-1 havoc __utac_acc__Specification5_spec__2_#t~ret60;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 350#L195 __utac_acc__Specification5_spec__2_#t~ret60 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret60;havoc __utac_acc__Specification5_spec__2_#t~ret60; 351#L831 assume !(0 != ~pumpRunning~0); 330#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 300#L142 assume !(0 == ~pumpRunning~0); 267#L117 havoc __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_#t~ret62, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 268#L939 __utac_acc__Specification5_spec__3_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 269#L842 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 358#L842-1 [2019-11-15 23:55:16,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:16,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-15 23:55:16,127 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:16,127 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522172657] [2019-11-15 23:55:16,127 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:16,127 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:16,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:16,478 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:55:16,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:16,479 INFO L82 PathProgramCache]: Analyzing trace with hash -572531389, now seen corresponding path program 1 times [2019-11-15 23:55:16,480 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:16,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106488848] [2019-11-15 23:55:16,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:16,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:16,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:55:16,511 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 23:55:16,511 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106488848] [2019-11-15 23:55:16,512 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:55:16,512 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:55:16,512 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693022293] [2019-11-15 23:55:16,512 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 23:55:16,513 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:55:16,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:55:16,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:55:16,513 INFO L87 Difference]: Start difference. First operand 149 states and 215 transitions. cyclomatic complexity: 69 Second operand 3 states. [2019-11-15 23:55:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:55:16,644 INFO L93 Difference]: Finished difference Result 248 states and 343 transitions. [2019-11-15 23:55:16,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:55:16,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 343 transitions. [2019-11-15 23:55:16,648 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2019-11-15 23:55:16,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 248 states and 343 transitions. [2019-11-15 23:55:16,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2019-11-15 23:55:16,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2019-11-15 23:55:16,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 343 transitions. [2019-11-15 23:55:16,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:55:16,654 INFO L688 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2019-11-15 23:55:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 343 transitions. [2019-11-15 23:55:16,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2019-11-15 23:55:16,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2019-11-15 23:55:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 343 transitions. [2019-11-15 23:55:16,669 INFO L711 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2019-11-15 23:55:16,669 INFO L591 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2019-11-15 23:55:16,669 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 23:55:16,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 343 transitions. [2019-11-15 23:55:16,676 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2019-11-15 23:55:16,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:55:16,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:55:16,678 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:55:16,678 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, 1] [2019-11-15 23:55:16,678 INFO L791 eck$LassoCheckResult]: Stem: 724#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 686#L-1 havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 687#L65 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; 685#L73 main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 679#L800 assume 0 != main_~tmp~6; 680#L775 ~switchedOnBeforeTS~0 := 0; 697#L821 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 767#L842-1 [2019-11-15 23:55:16,679 INFO L793 eck$LassoCheckResult]: Loop: 767#L842-1 assume !false; 842#L658 assume test_~splverifierCounter~0 < 4; 841#L659 test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 815#L667 assume !(0 != test_~tmp~5); 814#L667-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 808#L677 assume !(0 != test_~tmp___0~1); 807#L677-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 707#L687 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 709#L695-1 havoc __utac_acc__Specification5_spec__2_#t~ret60;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 837#L195 __utac_acc__Specification5_spec__2_#t~ret60 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret60;havoc __utac_acc__Specification5_spec__2_#t~ret60; 751#L831 assume !(0 != ~pumpRunning~0); 752#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 704#L142 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 705#L947 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 742#L952 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 743#L244 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 765#L244-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 766#L250 processEnvironment_#t~ret1 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret1;havoc processEnvironment_#t~ret1; 671#L146 assume !(0 != processEnvironment_~tmp~0); 673#L117 havoc __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_#t~ret62, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 674#L939 __utac_acc__Specification5_spec__3_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 675#L842 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 767#L842-1 [2019-11-15 23:55:16,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:16,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-15 23:55:16,679 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:16,680 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699428381] [2019-11-15 23:55:16,680 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:16,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:16,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:16,933 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:55:16,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:16,933 INFO L82 PathProgramCache]: Analyzing trace with hash -535419313, now seen corresponding path program 1 times [2019-11-15 23:55:16,934 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:16,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055529216] [2019-11-15 23:55:16,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:16,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:16,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:55:16,987 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 23:55:16,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055529216] [2019-11-15 23:55:16,987 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:55:16,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:55:16,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335976336] [2019-11-15 23:55:16,988 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 23:55:16,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:55:16,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:55:16,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:55:16,989 INFO L87 Difference]: Start difference. First operand 248 states and 343 transitions. cyclomatic complexity: 98 Second operand 5 states. [2019-11-15 23:55:17,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:55:17,248 INFO L93 Difference]: Finished difference Result 923 states and 1283 transitions. [2019-11-15 23:55:17,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:55:17,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 923 states and 1283 transitions. [2019-11-15 23:55:17,260 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 662 [2019-11-15 23:55:17,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 923 states to 923 states and 1283 transitions. [2019-11-15 23:55:17,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 923 [2019-11-15 23:55:17,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 923 [2019-11-15 23:55:17,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 923 states and 1283 transitions. [2019-11-15 23:55:17,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:55:17,279 INFO L688 BuchiCegarLoop]: Abstraction has 923 states and 1283 transitions. [2019-11-15 23:55:17,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states and 1283 transitions. [2019-11-15 23:55:17,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 483. [2019-11-15 23:55:17,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2019-11-15 23:55:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 655 transitions. [2019-11-15 23:55:17,315 INFO L711 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2019-11-15 23:55:17,315 INFO L591 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2019-11-15 23:55:17,315 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 23:55:17,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 483 states and 655 transitions. [2019-11-15 23:55:17,319 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 354 [2019-11-15 23:55:17,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:55:17,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:55:17,322 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:55:17,322 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, 1, 1, 1] [2019-11-15 23:55:17,322 INFO L791 eck$LassoCheckResult]: Stem: 1916#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 1879#L-1 havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 1880#L65 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; 1875#L73 main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 1867#L800 assume 0 != main_~tmp~6; 1868#L775 ~switchedOnBeforeTS~0 := 0; 1889#L821 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1957#L842-1 [2019-11-15 23:55:17,323 INFO L793 eck$LassoCheckResult]: Loop: 1957#L842-1 assume !false; 2121#L658 assume test_~splverifierCounter~0 < 4; 2120#L659 test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 2119#L667 assume !(0 != test_~tmp~5); 2117#L667-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 2116#L677 assume !(0 != test_~tmp___0~1); 2114#L677-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 2097#L687 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2060#L695-1 havoc __utac_acc__Specification5_spec__2_#t~ret60;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2058#L195 __utac_acc__Specification5_spec__2_#t~ret60 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret60;havoc __utac_acc__Specification5_spec__2_#t~ret60; 2056#L831 assume !(0 != ~pumpRunning~0); 2055#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 2054#L142 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 2030#L947 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 2049#L952 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 2037#L244 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 2036#L244-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 2035#L250 processEnvironment_#t~ret1 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret1;havoc processEnvironment_#t~ret1; 2031#L146 assume !(0 != processEnvironment_~tmp~0); 2032#L117 havoc __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_#t~ret62, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2127#L939 __utac_acc__Specification5_spec__3_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 2126#L842 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2125#L195-1 __utac_acc__Specification5_spec__3_#t~ret62 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret62;havoc __utac_acc__Specification5_spec__3_#t~ret62; 2124#L846 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1957#L842-1 [2019-11-15 23:55:17,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:17,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-15 23:55:17,323 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:17,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264308744] [2019-11-15 23:55:17,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:17,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:17,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:17,622 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:55:17,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:17,622 INFO L82 PathProgramCache]: Analyzing trace with hash 858102058, now seen corresponding path program 1 times [2019-11-15 23:55:17,622 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:17,623 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617049664] [2019-11-15 23:55:17,623 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:17,623 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:17,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:17,636 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:55:17,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:17,637 INFO L82 PathProgramCache]: Analyzing trace with hash 717508720, now seen corresponding path program 1 times [2019-11-15 23:55:17,637 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:17,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343407382] [2019-11-15 23:55:17,637 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:17,637 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:17,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:17,961 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:55:18,190 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-15 23:55:38,129 WARN L191 SmtUtils]: Spent 19.84 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-11-15 23:55:49,987 WARN L191 SmtUtils]: Spent 11.85 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-15 23:55:50,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 11:55:50 BoogieIcfgContainer [2019-11-15 23:55:50,060 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 23:55:50,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:55:50,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:55:50,060 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:55:50,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:55:14" (3/4) ... [2019-11-15 23:55:50,064 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 23:55:50,156 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b6adfb19-1e2a-4d1b-859d-065353523eb6/bin/uautomizer/witness.graphml [2019-11-15 23:55:50,156 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:55:50,157 INFO L168 Benchmark]: Toolchain (without parser) took 36743.52 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 231.7 MB). Free memory was 934.4 MB in the beginning and 935.3 MB in the end (delta: -952.3 kB). Peak memory consumption was 230.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:50,158 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:55:50,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:50,159 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.50 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:50,159 INFO L168 Benchmark]: Boogie Preprocessor took 38.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:55:50,160 INFO L168 Benchmark]: RCFGBuilder took 901.77 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: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:50,160 INFO L168 Benchmark]: BuchiAutomizer took 35088.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 89.7 MB). Free memory was 1.1 GB in the beginning and 945.2 MB in the end (delta: 114.6 MB). Peak memory consumption was 305.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:50,161 INFO L168 Benchmark]: Witness Printer took 96.24 ms. Allocated memory is still 1.3 GB. Free memory was 945.2 MB in the beginning and 935.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:50,163 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 554.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.50 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 901.77 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: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35088.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 89.7 MB). Free memory was 1.1 GB in the beginning and 945.2 MB in the end (delta: 114.6 MB). Peak memory consumption was 305.0 MB. Max. memory is 11.5 GB. * Witness Printer took 96.24 ms. Allocated memory is still 1.3 GB. Free memory was 945.2 MB in the beginning and 935.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 483 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 34.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 442 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 483 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 404 SDtfs, 684 SDslu, 647 SDs, 0 SdLazy, 136 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 657]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9754} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=-13, retValue_acc=1, NULL=9754, NULL=0, NULL=0, NULL=-24, retValue_acc=0, NULL=0, NULL=0, NULL=-16, NULL=-10, methaneLevelCritical=0, NULL=-2, tmp=1, tmp___0=0, retValue_acc=0, tmp=0, NULL=-19, NULL=0, NULL=0, NULL=-11, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e30d8b=0, NULL=-20, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=-22, NULL=-7, NULL=-17, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-5, \result=0, NULL=0, NULL=-3, NULL=0, NULL=0, NULL=-23, \result=1, NULL=-8, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7aa3f7ce=0, NULL=-6, \result=0, NULL=-9, NULL=-12, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8246ca7=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=-15, NULL=0, tmp=1, retValue_acc=1, tmp___2=59, retValue_acc=1, tmp___0=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@279665b8=0, NULL=-21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ef111bc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65f69a93=0, NULL=9753, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39723f2d=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5da78cfa=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@874c9fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30569c1f=0, head=0, NULL=0, NULL=-18, NULL=-4, NULL=-14, NULL=0, NULL=-1, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L447] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L716] int cleanupTimeShifts = 4; [L815] int switchedOnBeforeTS ; [L864] int waterLevel = 1; [L865] int methaneLevelCritical = 0; [L791] int retValue_acc ; [L792] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L798] tmp = valid_product() [L800] COND TRUE \read(tmp) [L820] switchedOnBeforeTS = 0 [L648] int splverifierCounter ; [L649] int tmp ; [L650] int tmp___0 ; [L651] int tmp___1 ; [L652] int tmp___2 ; [L655] splverifierCounter = 0 Loop: [L657] COND TRUE 1 [L659] COND TRUE splverifierCounter < 4 [L665] tmp = __VERIFIER_nondet_int() [L667] COND FALSE !(\read(tmp)) [L675] tmp___0 = __VERIFIER_nondet_int() [L677] COND FALSE !(\read(tmp___0)) [L685] tmp___2 = __VERIFIER_nondet_int() [L687] COND TRUE \read(tmp___2) [L273] systemActive = 1 [L191] int retValue_acc ; [L194] retValue_acc = pumpRunning [L195] return (retValue_acc); [L829] switchedOnBeforeTS = isPumpRunning() [L110] COND FALSE !(\read(pumpRunning)) [L117] COND TRUE \read(systemActive) [L139] int tmp ; [L142] COND TRUE ! pumpRunning [L236] int retValue_acc ; [L237] int tmp ; [L238] int tmp___0 ; [L944] int retValue_acc ; [L947] COND TRUE waterLevel < 2 [L948] retValue_acc = 1 [L949] return (retValue_acc); [L242] tmp = isHighWaterSensorDry() [L244] COND TRUE \read(tmp) [L245] tmp___0 = 0 [L249] retValue_acc = tmp___0 [L250] return (retValue_acc); [L144] tmp = isHighWaterLevel() [L146] COND FALSE !(\read(tmp)) [L835] int tmp ; [L836] int tmp___0 ; [L935] int retValue_acc ; [L938] retValue_acc = waterLevel [L939] return (retValue_acc); [L840] tmp = getWaterLevel() [L842] COND TRUE tmp != 2 [L191] int retValue_acc ; [L194] retValue_acc = pumpRunning [L195] return (retValue_acc); [L844] tmp___0 = isPumpRunning() [L846] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...