./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product63.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_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/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 7c9d11b324245890faf2aa5cc0763c01a125dd6d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:41:42,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:41:42,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:41:42,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:41:42,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:41:42,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:41:42,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:41:42,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:41:42,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:41:42,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:41:42,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:41:42,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:41:42,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:41:42,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:41:42,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:41:42,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:41:42,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:41:42,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:41:42,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:41:42,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:41:42,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:41:42,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:41:42,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:41:42,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:41:42,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:41:42,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:41:42,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:41:42,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:41:42,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:41:42,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:41:42,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:41:42,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:41:42,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:41:42,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:41:42,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:41:42,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:41:42,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:41:42,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:41:42,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:41:42,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:41:42,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:41:42,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 21:41:42,697 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:41:42,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:41:42,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:41:42,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:41:42,699 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:41:42,699 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 21:41:42,700 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 21:41:42,700 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 21:41:42,700 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 21:41:42,700 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 21:41:42,701 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 21:41:42,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:41:42,701 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:41:42,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:41:42,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:41:42,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:41:42,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:41:42,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 21:41:42,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 21:41:42,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 21:41:42,703 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:41:42,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:41:42,703 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 21:41:42,704 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:41:42,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 21:41:42,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:41:42,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:41:42,705 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 21:41:42,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:41:42,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:41:42,705 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 21:41:42,706 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 21:41:42,707 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_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/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 -> 7c9d11b324245890faf2aa5cc0763c01a125dd6d [2019-11-15 21:41:42,736 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:41:42,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:41:42,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:41:42,751 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:41:42,752 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:41:42,752 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2019-11-15 21:41:42,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/data/48305087a/200d65ea8fb449c199c17507041ba372/FLAG1979a3790 [2019-11-15 21:41:43,315 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:41:43,316 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2019-11-15 21:41:43,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/data/48305087a/200d65ea8fb449c199c17507041ba372/FLAG1979a3790 [2019-11-15 21:41:43,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/data/48305087a/200d65ea8fb449c199c17507041ba372 [2019-11-15 21:41:43,634 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:41:43,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:41:43,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:41:43,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:41:43,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:41:43,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:41:43" (1/1) ... [2019-11-15 21:41:43,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eeadc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:43, skipping insertion in model container [2019-11-15 21:41:43,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:41:43" (1/1) ... [2019-11-15 21:41:43,657 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:41:43,703 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:41:44,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:41:44,170 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:41:44,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:41:44,310 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:41:44,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44 WrapperNode [2019-11-15 21:41:44,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:41:44,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:41:44,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:41:44,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:41:44,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... [2019-11-15 21:41:44,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... [2019-11-15 21:41:44,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:41:44,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:41:44,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:41:44,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:41:44,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... [2019-11-15 21:41:44,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... [2019-11-15 21:41:44,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... [2019-11-15 21:41:44,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... [2019-11-15 21:41:44,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... [2019-11-15 21:41:44,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... [2019-11-15 21:41:44,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... [2019-11-15 21:41:44,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:41:44,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:41:44,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:41:44,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:41:44,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/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 21:41:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:41:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 21:41:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:41:44,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:41:45,860 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:41:45,860 INFO L284 CfgBuilder]: Removed 366 assume(true) statements. [2019-11-15 21:41:45,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:41:45 BoogieIcfgContainer [2019-11-15 21:41:45,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:41:45,862 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 21:41:45,862 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 21:41:45,867 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 21:41:45,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:41:45,869 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 09:41:43" (1/3) ... [2019-11-15 21:41:45,870 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bc9f017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:41:45, skipping insertion in model container [2019-11-15 21:41:45,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:41:45,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:41:44" (2/3) ... [2019-11-15 21:41:45,871 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bc9f017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:41:45, skipping insertion in model container [2019-11-15 21:41:45,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:41:45,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:41:45" (3/3) ... [2019-11-15 21:41:45,875 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2019-11-15 21:41:45,929 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 21:41:45,930 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 21:41:45,930 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 21:41:45,930 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:41:45,931 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:41:45,931 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 21:41:45,931 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:41:45,931 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 21:41:45,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-11-15 21:41:46,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-11-15 21:41:46,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:41:46,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:41:46,040 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:41:46,040 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:41:46,040 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 21:41:46,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-11-15 21:41:46,058 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-11-15 21:41:46,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:41:46,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:41:46,061 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:41:46,061 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:41:46,074 INFO L791 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 9#L-1true havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 117#L117true 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; 25#L125true main_#t~ret8 := valid_product_#res;main_~tmp~2 := main_#t~ret8;havoc main_#t~ret8; 50#L295true assume 0 != main_~tmp~2; 106#L271true ~switchedOnBeforeTS~0 := 0; 87#L49true havoc test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_#t~nondet7, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 22#L70-1true [2019-11-15 21:41:46,075 INFO L793 eck$LassoCheckResult]: Loop: 22#L70-1true assume !false; 137#L155true assume test_~splverifierCounter~0 < 4; 226#L156true test_~tmp~1 := test_#t~nondet4;havoc test_#t~nondet4; 20#L164true assume !(0 != test_~tmp~1); 18#L164-1true test_~tmp___0~1 := test_#t~nondet5;havoc test_#t~nondet5; 67#L174true assume !(0 != test_~tmp___0~1); 64#L174-1true test_~tmp___2~0 := test_#t~nondet6;havoc test_#t~nondet6; 220#L184true assume 0 != test_~tmp___2~0; 191#L190-1true havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 141#L480true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 23#L59true assume !(0 != ~pumpRunning~0); 129#L326true assume !(0 != ~systemActive~0); 203#L333true havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 88#L649true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 24#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 22#L70-1true [2019-11-15 21:41:46,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:46,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-15 21:41:46,092 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:46,092 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526556593] [2019-11-15 21:41:46,092 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:46,093 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:46,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:47,265 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:41:47,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:47,267 INFO L82 PathProgramCache]: Analyzing trace with hash -235396459, now seen corresponding path program 1 times [2019-11-15 21:41:47,267 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:47,268 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984679832] [2019-11-15 21:41:47,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:47,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:47,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:47,296 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:41:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:47,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1698628751, now seen corresponding path program 1 times [2019-11-15 21:41:47,301 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:47,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039008347] [2019-11-15 21:41:47,302 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:47,302 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:47,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:41:47,466 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 21:41:47,469 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039008347] [2019-11-15 21:41:47,469 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:41:47,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:41:47,470 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014717984] [2019-11-15 21:41:47,595 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:41:47,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:41:47,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:41:47,613 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 6 states. [2019-11-15 21:41:47,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:41:47,856 INFO L93 Difference]: Finished difference Result 517 states and 748 transitions. [2019-11-15 21:41:47,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:41:47,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 517 states and 748 transitions. [2019-11-15 21:41:47,867 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 339 [2019-11-15 21:41:47,885 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 517 states to 496 states and 727 transitions. [2019-11-15 21:41:47,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 496 [2019-11-15 21:41:47,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 496 [2019-11-15 21:41:47,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 496 states and 727 transitions. [2019-11-15 21:41:47,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:41:47,901 INFO L688 BuchiCegarLoop]: Abstraction has 496 states and 727 transitions. [2019-11-15 21:41:47,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states and 727 transitions. [2019-11-15 21:41:47,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 275. [2019-11-15 21:41:47,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2019-11-15 21:41:47,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 401 transitions. [2019-11-15 21:41:47,972 INFO L711 BuchiCegarLoop]: Abstraction has 275 states and 401 transitions. [2019-11-15 21:41:47,972 INFO L591 BuchiCegarLoop]: Abstraction has 275 states and 401 transitions. [2019-11-15 21:41:47,972 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 21:41:47,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 275 states and 401 transitions. [2019-11-15 21:41:47,975 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2019-11-15 21:41:47,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:41:47,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:41:47,979 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:41:47,979 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:41:47,979 INFO L791 eck$LassoCheckResult]: Stem: 913#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 782#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 783#L117 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; 821#L125 main_#t~ret8 := valid_product_#res;main_~tmp~2 := main_#t~ret8;havoc main_#t~ret8; 822#L295 assume 0 != main_~tmp~2; 867#L271 ~switchedOnBeforeTS~0 := 0; 914#L49 havoc test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_#t~nondet7, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 814#L70-1 [2019-11-15 21:41:47,980 INFO L793 eck$LassoCheckResult]: Loop: 814#L70-1 assume !false; 815#L155 assume test_~splverifierCounter~0 < 4; 964#L156 test_~tmp~1 := test_#t~nondet4;havoc test_#t~nondet4; 809#L164 assume !(0 != test_~tmp~1); 805#L164-1 test_~tmp___0~1 := test_#t~nondet5;havoc test_#t~nondet5; 806#L174 assume !(0 != test_~tmp___0~1); 834#L174-1 test_~tmp___2~0 := test_#t~nondet6;havoc test_#t~nondet6; 888#L184 assume 0 != test_~tmp___2~0; 992#L190-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 968#L480 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 816#L59 assume !(0 != ~pumpRunning~0); 818#L326 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 959#L410 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret10, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 828#L384-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret9, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 829#L358-3 assume !(0 == ~pumpRunning~0); 785#L333 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 915#L649 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 819#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 814#L70-1 [2019-11-15 21:41:47,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:47,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-15 21:41:47,982 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:47,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607852125] [2019-11-15 21:41:47,983 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:47,984 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:47,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:48,432 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:41:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:48,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1853866313, now seen corresponding path program 1 times [2019-11-15 21:41:48,433 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:48,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676167247] [2019-11-15 21:41:48,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:48,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:48,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:41:48,445 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 21:41:48,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676167247] [2019-11-15 21:41:48,446 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:41:48,446 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 21:41:48,446 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863336003] [2019-11-15 21:41:48,447 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 21:41:48,447 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:41:48,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:41:48,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:41:48,448 INFO L87 Difference]: Start difference. First operand 275 states and 401 transitions. cyclomatic complexity: 129 Second operand 3 states. [2019-11-15 21:41:48,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:41:48,605 INFO L93 Difference]: Finished difference Result 277 states and 380 transitions. [2019-11-15 21:41:48,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:41:48,606 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 380 transitions. [2019-11-15 21:41:48,610 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 194 [2019-11-15 21:41:48,612 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 277 states and 380 transitions. [2019-11-15 21:41:48,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 277 [2019-11-15 21:41:48,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 277 [2019-11-15 21:41:48,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 277 states and 380 transitions. [2019-11-15 21:41:48,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:41:48,614 INFO L688 BuchiCegarLoop]: Abstraction has 277 states and 380 transitions. [2019-11-15 21:41:48,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states and 380 transitions. [2019-11-15 21:41:48,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2019-11-15 21:41:48,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-11-15 21:41:48,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 380 transitions. [2019-11-15 21:41:48,625 INFO L711 BuchiCegarLoop]: Abstraction has 277 states and 380 transitions. [2019-11-15 21:41:48,626 INFO L591 BuchiCegarLoop]: Abstraction has 277 states and 380 transitions. [2019-11-15 21:41:48,626 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 21:41:48,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states and 380 transitions. [2019-11-15 21:41:48,628 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 194 [2019-11-15 21:41:48,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:41:48,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:41:48,630 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:41:48,630 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 21:41:48,630 INFO L791 eck$LassoCheckResult]: Stem: 1515#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 1344#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 1345#L117 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; 1393#L125 main_#t~ret8 := valid_product_#res;main_~tmp~2 := main_#t~ret8;havoc main_#t~ret8; 1394#L295 assume 0 != main_~tmp~2; 1379#L271 ~switchedOnBeforeTS~0 := 0; 1380#L49 havoc test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_#t~nondet7, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1516#L70-1 [2019-11-15 21:41:48,631 INFO L793 eck$LassoCheckResult]: Loop: 1516#L70-1 assume !false; 1571#L155 assume test_~splverifierCounter~0 < 4; 1572#L156 test_~tmp~1 := test_#t~nondet4;havoc test_#t~nondet4; 1601#L164 assume !(0 != test_~tmp~1); 1599#L164-1 test_~tmp___0~1 := test_#t~nondet5;havoc test_#t~nondet5; 1490#L174 assume !(0 != test_~tmp___0~1); 1418#L174-1 test_~tmp___2~0 := test_#t~nondet6;havoc test_#t~nondet6; 1488#L184 assume 0 != test_~tmp___2~0; 1498#L190-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1441#L480 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 1388#L59 assume !(0 != ~pumpRunning~0); 1389#L326 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1425#L410 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret10, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1404#L384-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret9, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1405#L358-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1493#L657-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1354#L662-3 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 1355#L529-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1447#L529-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1406#L535-3 processEnvironment__wrappee__highWaterSensor_#t~ret9 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret9;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9; 1360#L362-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1349#L333 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1577#L649 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 1575#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 1516#L70-1 [2019-11-15 21:41:48,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:48,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-15 21:41:48,631 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:48,632 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818194535] [2019-11-15 21:41:48,632 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:48,632 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:48,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:48,955 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:41:48,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:48,956 INFO L82 PathProgramCache]: Analyzing trace with hash 2069526741, now seen corresponding path program 1 times [2019-11-15 21:41:48,956 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:48,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446907280] [2019-11-15 21:41:48,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:48,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:48,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:41:49,007 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 21:41:49,007 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446907280] [2019-11-15 21:41:49,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:41:49,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 21:41:49,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867799919] [2019-11-15 21:41:49,008 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 21:41:49,008 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:41:49,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:41:49,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:41:49,009 INFO L87 Difference]: Start difference. First operand 277 states and 380 transitions. cyclomatic complexity: 106 Second operand 5 states. [2019-11-15 21:41:49,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:41:49,384 INFO L93 Difference]: Finished difference Result 1231 states and 1699 transitions. [2019-11-15 21:41:49,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:41:49,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1231 states and 1699 transitions. [2019-11-15 21:41:49,398 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 851 [2019-11-15 21:41:49,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1231 states to 1231 states and 1699 transitions. [2019-11-15 21:41:49,414 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1231 [2019-11-15 21:41:49,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1231 [2019-11-15 21:41:49,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1231 states and 1699 transitions. [2019-11-15 21:41:49,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:41:49,420 INFO L688 BuchiCegarLoop]: Abstraction has 1231 states and 1699 transitions. [2019-11-15 21:41:49,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states and 1699 transitions. [2019-11-15 21:41:49,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 544. [2019-11-15 21:41:49,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2019-11-15 21:41:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 738 transitions. [2019-11-15 21:41:49,447 INFO L711 BuchiCegarLoop]: Abstraction has 544 states and 738 transitions. [2019-11-15 21:41:49,447 INFO L591 BuchiCegarLoop]: Abstraction has 544 states and 738 transitions. [2019-11-15 21:41:49,447 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 21:41:49,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 544 states and 738 transitions. [2019-11-15 21:41:49,456 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 386 [2019-11-15 21:41:49,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:41:49,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:41:49,457 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:41:49,457 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, 1, 1] [2019-11-15 21:41:49,458 INFO L791 eck$LassoCheckResult]: Stem: 3058#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 2874#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 2875#L117 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; 2923#L125 main_#t~ret8 := valid_product_#res;main_~tmp~2 := main_#t~ret8;havoc main_#t~ret8; 2924#L295 assume 0 != main_~tmp~2; 2909#L271 ~switchedOnBeforeTS~0 := 0; 2910#L49 havoc test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_#t~nondet7, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3059#L70-1 [2019-11-15 21:41:49,458 INFO L793 eck$LassoCheckResult]: Loop: 3059#L70-1 assume !false; 3345#L155 assume test_~splverifierCounter~0 < 4; 3344#L156 test_~tmp~1 := test_#t~nondet4;havoc test_#t~nondet4; 3343#L164 assume !(0 != test_~tmp~1); 3341#L164-1 test_~tmp___0~1 := test_#t~nondet5;havoc test_#t~nondet5; 3340#L174 assume !(0 != test_~tmp___0~1); 3338#L174-1 test_~tmp___2~0 := test_#t~nondet6;havoc test_#t~nondet6; 3337#L184 assume 0 != test_~tmp___2~0; 3336#L190-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 3352#L480 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 3318#L59 assume !(0 != ~pumpRunning~0); 3281#L326 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 3280#L410 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret10, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 3272#L384-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret9, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 3279#L358-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 3278#L657-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 3076#L662-3 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 3277#L529-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 3275#L529-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 3274#L535-3 processEnvironment__wrappee__highWaterSensor_#t~ret9 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret9;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9; 3273#L362-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 2931#L333 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 3351#L649 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 3350#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 3349#L480-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 3348#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 3059#L70-1 [2019-11-15 21:41:49,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:49,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-15 21:41:49,459 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:49,459 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577799177] [2019-11-15 21:41:49,459 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:49,460 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:49,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:49,782 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:41:49,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:49,783 INFO L82 PathProgramCache]: Analyzing trace with hash 245333008, now seen corresponding path program 1 times [2019-11-15 21:41:49,783 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:49,783 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422036883] [2019-11-15 21:41:49,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:49,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:49,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:49,798 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:41:49,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:41:49,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1720878634, now seen corresponding path program 1 times [2019-11-15 21:41:49,799 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:41:49,799 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413113469] [2019-11-15 21:41:49,799 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:49,800 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:41:49,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:41:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:41:50,323 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:41:50,542 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-15 21:42:25,390 WARN L191 SmtUtils]: Spent 34.74 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-11-15 21:42:41,696 WARN L191 SmtUtils]: Spent 16.29 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-15 21:42:41,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 09:42:41 BoogieIcfgContainer [2019-11-15 21:42:41,777 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 21:42:41,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:42:41,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:42:41,778 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:42:41,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:41:45" (3/4) ... [2019-11-15 21:42:41,781 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 21:42:41,849 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2c8cfecd-3aa3-42c7-b193-0e05dea698b5/bin/uautomizer/witness.graphml [2019-11-15 21:42:41,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:42:41,850 INFO L168 Benchmark]: Toolchain (without parser) took 58214.68 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 404.8 MB). Free memory was 941.1 MB in the beginning and 1.0 GB in the end (delta: -94.0 MB). Peak memory consumption was 310.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:41,851 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 21:42:41,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:41,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.65 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:41,852 INFO L168 Benchmark]: Boogie Preprocessor took 142.11 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 21:42:41,853 INFO L168 Benchmark]: RCFGBuilder took 1285.02 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: 92.6 MB). Peak memory consumption was 92.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:41,854 INFO L168 Benchmark]: BuchiAutomizer took 55914.58 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 245.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -2.4 MB). Peak memory consumption was 372.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:41,854 INFO L168 Benchmark]: Witness Printer took 71.94 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:41,857 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 674.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 121.65 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 142.11 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 1285.02 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: 92.6 MB). Peak memory consumption was 92.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 55914.58 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 245.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -2.4 MB). Peak memory consumption was 372.5 MB. Max. memory is 11.5 GB. * Witness Printer took 71.94 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 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 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 6 locations. The remainder module has 544 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 55.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 54.6s. Construction of modules took 0.4s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 908 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 544 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1014 SDtfs, 2889 SDslu, 2573 SDs, 0 SdLazy, 277 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 154]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6552} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@94f85ec=0, NULL=6552, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79b9079d=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@675e4941=0, NULL=-24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e43c04f=0, NULL=0, NULL=0, NULL=-18, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64831069=0, retValue_acc=0, NULL=-20, tmp___1=0, NULL=-23, NULL=-5, NULL=-1, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45f054d7=0, NULL=-14, NULL=0, NULL=0, waterLevel=1, NULL=-8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fced87b=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=-21, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=-6, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37dc86b7=0, tmp___0=0, NULL=-19, head=0, tmp=0, NULL=-7, NULL=0, NULL=0, NULL=-13, tmp=0, NULL=-22, NULL=0, retValue_acc=0, NULL=0, NULL=-12, NULL=-16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a1c285f=0, NULL=-15, tmp___0=0, NULL=0, NULL=0, NULL=-9, tmp=1, tmp=0, switchedOnBeforeTS=0, NULL=-11, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=-4, \result=1, \result=0, tmp___0=0, \result=0, NULL=-10, NULL=0, NULL=0, NULL=-3, NULL=0, retValue_acc=1, tmp___2=61, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54c47f56=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b4e23ff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12cd6e60=0, NULL=6551, NULL=-2, NULL=-17, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int switchedOnBeforeTS ; [L211] int cleanupTimeShifts = 4; [L316] int pumpRunning = 0; [L317] int systemActive = 1; [L574] int waterLevel = 1; [L575] int methaneLevelCritical = 0; [L846] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L286] int retValue_acc ; [L287] int tmp ; [L121] int retValue_acc ; [L124] retValue_acc = 1 [L125] return (retValue_acc); [L293] tmp = valid_product() [L295] COND TRUE \read(tmp) [L48] switchedOnBeforeTS = 0 [L145] int splverifierCounter ; [L146] int tmp ; [L147] int tmp___0 ; [L148] int tmp___1 ; [L149] int tmp___2 ; [L152] splverifierCounter = 0 Loop: [L154] COND TRUE 1 [L156] COND TRUE splverifierCounter < 4 [L162] tmp = __VERIFIER_nondet_int() [L164] COND FALSE !(\read(tmp)) [L172] tmp___0 = __VERIFIER_nondet_int() [L174] COND FALSE !(\read(tmp___0)) [L182] tmp___2 = __VERIFIER_nondet_int() [L184] COND TRUE \read(tmp___2) [L476] int retValue_acc ; [L479] retValue_acc = pumpRunning [L480] return (retValue_acc); [L57] switchedOnBeforeTS = isPumpRunning() [L326] COND FALSE !(\read(pumpRunning)) [L333] COND TRUE \read(systemActive) [L407] int tmp ; [L410] COND FALSE !(\read(pumpRunning)) [L381] int tmp ; [L384] COND FALSE !(\read(pumpRunning)) [L355] int tmp ; [L358] COND TRUE ! pumpRunning [L521] int retValue_acc ; [L522] int tmp ; [L523] int tmp___0 ; [L654] int retValue_acc ; [L657] COND TRUE waterLevel < 2 [L658] retValue_acc = 1 [L659] return (retValue_acc); [L527] tmp = isHighWaterSensorDry() [L529] COND TRUE \read(tmp) [L530] tmp___0 = 0 [L534] retValue_acc = tmp___0 [L535] return (retValue_acc); [L360] tmp = isHighWaterLevel() [L362] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L645] int retValue_acc ; [L648] retValue_acc = waterLevel [L649] return (retValue_acc); [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L476] int retValue_acc ; [L479] retValue_acc = pumpRunning [L480] return (retValue_acc); [L72] tmp___0 = isPumpRunning() [L74] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...