./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.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_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/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 43ef5600519005fc88dd599d15644e5bf72b4abd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:14:17,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:14:17,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:14:17,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:14:17,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:14:17,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:14:17,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:14:17,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:14:17,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:14:17,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:14:17,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:14:17,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:14:17,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:14:17,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:14:17,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:14:17,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:14:17,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:14:17,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:14:17,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:14:17,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:14:17,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:14:17,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:14:17,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:14:17,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:14:17,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:14:17,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:14:17,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:14:17,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:14:17,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:14:17,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:14:17,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:14:17,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:14:17,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:14:17,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:14:17,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:14:17,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:14:17,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:14:17,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:14:17,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:14:17,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:14:17,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:14:17,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 22:14:17,916 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:14:17,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:14:17,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:14:17,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:14:17,918 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:14:17,919 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 22:14:17,919 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 22:14:17,919 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 22:14:17,920 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 22:14:17,920 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 22:14:17,920 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 22:14:17,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:14:17,921 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:14:17,921 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:14:17,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:14:17,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:14:17,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:14:17,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 22:14:17,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 22:14:17,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 22:14:17,923 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:14:17,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:14:17,923 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 22:14:17,924 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:14:17,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 22:14:17,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:14:17,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:14:17,925 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 22:14:17,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:14:17,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:14:17,926 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 22:14:17,927 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 22:14:17,927 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_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/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 -> 43ef5600519005fc88dd599d15644e5bf72b4abd [2019-11-15 22:14:17,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:14:17,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:14:17,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:14:17,980 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:14:17,980 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:14:17,981 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2019-11-15 22:14:18,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/data/e58ac2ba6/29964bc2c41948529b7e136bd42edd96/FLAG1e353aaa7 [2019-11-15 22:14:18,536 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:14:18,537 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2019-11-15 22:14:18,555 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/data/e58ac2ba6/29964bc2c41948529b7e136bd42edd96/FLAG1e353aaa7 [2019-11-15 22:14:18,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/data/e58ac2ba6/29964bc2c41948529b7e136bd42edd96 [2019-11-15 22:14:18,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:14:18,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:14:18,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:14:18,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:14:18,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:14:18,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:14:18" (1/1) ... [2019-11-15 22:14:18,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3baf3ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:18, skipping insertion in model container [2019-11-15 22:14:18,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:14:18" (1/1) ... [2019-11-15 22:14:18,801 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:14:18,874 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:14:19,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:14:19,423 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:14:19,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:14:19,527 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:14:19,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19 WrapperNode [2019-11-15 22:14:19,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:14:19,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:14:19,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:14:19,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:14:19,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... [2019-11-15 22:14:19,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... [2019-11-15 22:14:19,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:14:19,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:14:19,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:14:19,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:14:19,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... [2019-11-15 22:14:19,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... [2019-11-15 22:14:19,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... [2019-11-15 22:14:19,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... [2019-11-15 22:14:19,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... [2019-11-15 22:14:19,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... [2019-11-15 22:14:19,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... [2019-11-15 22:14:19,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:14:19,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:14:19,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:14:19,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:14:19,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/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 22:14:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:14:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 22:14:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:14:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:14:20,744 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:14:20,744 INFO L284 CfgBuilder]: Removed 204 assume(true) statements. [2019-11-15 22:14:20,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:14:20 BoogieIcfgContainer [2019-11-15 22:14:20,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:14:20,748 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 22:14:20,748 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 22:14:20,752 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 22:14:20,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:14:20,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 10:14:18" (1/3) ... [2019-11-15 22:14:20,755 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@253bfe0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:14:20, skipping insertion in model container [2019-11-15 22:14:20,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:14:20,756 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:19" (2/3) ... [2019-11-15 22:14:20,757 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@253bfe0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:14:20, skipping insertion in model container [2019-11-15 22:14:20,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:14:20,759 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:14:20" (3/3) ... [2019-11-15 22:14:20,762 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2019-11-15 22:14:20,823 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 22:14:20,825 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 22:14:20,825 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 22:14:20,826 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:14:20,826 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:14:20,826 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 22:14:20,826 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:14:20,826 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 22:14:20,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states. [2019-11-15 22:14:20,885 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-15 22:14:20,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:14:20,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:14:20,893 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:14:20,893 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:20,893 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 22:14:20,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states. [2019-11-15 22:14:20,901 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-15 22:14:20,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:14:20,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:14:20,903 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:14:20,903 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:20,907 INFO L791 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25); 9#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 118#L74true 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; 115#L82true main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 13#L530true assume 0 != main_~tmp~5; 128#L506true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 47#L105-1true [2019-11-15 22:14:20,908 INFO L793 eck$LassoCheckResult]: Loop: 47#L105-1true assume !false; 6#L555true assume test_~splverifierCounter~0 < 4; 92#L556true test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 98#L564true assume !(0 != test_~tmp~6); 102#L564-1true test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 10#L574true assume !(0 != test_~tmp___0~2); 12#L574-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 55#L584true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 87#L592-1true assume !(0 != ~pumpRunning~0); 136#L236true assume !(0 != ~systemActive~0); 32#L243true havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 8#L172-3true __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 108#L99true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 47#L105-1true [2019-11-15 22:14:20,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:20,914 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-15 22:14:20,921 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:20,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855024106] [2019-11-15 22:14:20,922 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:20,922 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:20,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:21,929 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:14:21,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:21,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1669770369, now seen corresponding path program 1 times [2019-11-15 22:14:21,931 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:21,932 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380484376] [2019-11-15 22:14:21,932 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:21,932 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:21,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:21,990 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 22:14:21,991 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380484376] [2019-11-15 22:14:21,991 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:14:21,992 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:14:21,992 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019008107] [2019-11-15 22:14:21,997 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 22:14:21,998 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:14:22,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:14:22,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:14:22,017 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 3 states. [2019-11-15 22:14:22,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:14:22,120 INFO L93 Difference]: Finished difference Result 262 states and 378 transitions. [2019-11-15 22:14:22,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:14:22,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 378 transitions. [2019-11-15 22:14:22,147 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 170 [2019-11-15 22:14:22,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 248 states and 363 transitions. [2019-11-15 22:14:22,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2019-11-15 22:14:22,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2019-11-15 22:14:22,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 363 transitions. [2019-11-15 22:14:22,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:14:22,175 INFO L688 BuchiCegarLoop]: Abstraction has 248 states and 363 transitions. [2019-11-15 22:14:22,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 363 transitions. [2019-11-15 22:14:22,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2019-11-15 22:14:22,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-11-15 22:14:22,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 360 transitions. [2019-11-15 22:14:22,264 INFO L711 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2019-11-15 22:14:22,265 INFO L591 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2019-11-15 22:14:22,265 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 22:14:22,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 360 transitions. [2019-11-15 22:14:22,275 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2019-11-15 22:14:22,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:14:22,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:14:22,277 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:14:22,277 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:22,279 INFO L791 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25); 418#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 419#L74 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; 544#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 426#L530 assume 0 != main_~tmp~5; 427#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 549#L105-1 [2019-11-15 22:14:22,279 INFO L793 eck$LassoCheckResult]: Loop: 549#L105-1 assume !false; 560#L555 assume test_~splverifierCounter~0 < 4; 559#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 558#L564 assume !(0 != test_~tmp~6); 536#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 420#L574 assume !(0 != test_~tmp___0~2); 421#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 425#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 493#L592-1 assume !(0 != ~pumpRunning~0); 504#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 550#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 583#L268-1 assume !(0 == ~pumpRunning~0); 578#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 564#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 563#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 549#L105-1 [2019-11-15 22:14:22,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:22,280 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-15 22:14:22,280 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:22,280 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94565336] [2019-11-15 22:14:22,281 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:22,281 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:22,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:22,753 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:14:22,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:22,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1411824415, now seen corresponding path program 1 times [2019-11-15 22:14:22,754 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:22,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773380149] [2019-11-15 22:14:22,754 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:22,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:22,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:22,768 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 22:14:22,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773380149] [2019-11-15 22:14:22,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:14:22,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:14:22,769 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349141828] [2019-11-15 22:14:22,770 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 22:14:22,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:14:22,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:14:22,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:14:22,770 INFO L87 Difference]: Start difference. First operand 246 states and 360 transitions. cyclomatic complexity: 117 Second operand 3 states. [2019-11-15 22:14:22,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:14:22,950 INFO L93 Difference]: Finished difference Result 341 states and 478 transitions. [2019-11-15 22:14:22,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:14:22,951 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 341 states and 478 transitions. [2019-11-15 22:14:22,956 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2019-11-15 22:14:22,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 341 states to 341 states and 478 transitions. [2019-11-15 22:14:22,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 341 [2019-11-15 22:14:22,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 341 [2019-11-15 22:14:22,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 341 states and 478 transitions. [2019-11-15 22:14:22,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:14:22,970 INFO L688 BuchiCegarLoop]: Abstraction has 341 states and 478 transitions. [2019-11-15 22:14:22,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states and 478 transitions. [2019-11-15 22:14:22,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2019-11-15 22:14:22,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-11-15 22:14:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 478 transitions. [2019-11-15 22:14:22,993 INFO L711 BuchiCegarLoop]: Abstraction has 341 states and 478 transitions. [2019-11-15 22:14:22,994 INFO L591 BuchiCegarLoop]: Abstraction has 341 states and 478 transitions. [2019-11-15 22:14:22,994 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 22:14:22,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 341 states and 478 transitions. [2019-11-15 22:14:22,999 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2019-11-15 22:14:23,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:14:23,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:14:23,003 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:14:23,004 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:23,004 INFO L791 eck$LassoCheckResult]: Stem: 1149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25); 1011#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1012#L74 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; 1161#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 1019#L530 assume 0 != main_~tmp~5; 1020#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1026#L105-1 [2019-11-15 22:14:23,005 INFO L793 eck$LassoCheckResult]: Loop: 1026#L105-1 assume !false; 1004#L555 assume test_~splverifierCounter~0 < 4; 1005#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 1257#L564 assume !(0 != test_~tmp~6); 1150#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 1013#L574 assume !(0 != test_~tmp___0~2); 1014#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 1018#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1098#L592-1 assume !(0 != ~pumpRunning~0); 1170#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1171#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1063#L268-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 1064#L212-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 1264#L217-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 1262#L413-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1106#L413-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1107#L419-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 1261#L272-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 1244#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 1265#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 1153#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 1026#L105-1 [2019-11-15 22:14:23,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:23,005 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-15 22:14:23,005 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:23,006 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323824548] [2019-11-15 22:14:23,006 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:23,006 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:23,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:23,329 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:14:23,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:23,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1301686415, now seen corresponding path program 1 times [2019-11-15 22:14:23,331 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:23,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497321240] [2019-11-15 22:14:23,331 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:23,331 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:23,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:23,361 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 22:14:23,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497321240] [2019-11-15 22:14:23,361 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:14:23,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:14:23,362 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999834612] [2019-11-15 22:14:23,362 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 22:14:23,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:14:23,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:14:23,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:14:23,363 INFO L87 Difference]: Start difference. First operand 341 states and 478 transitions. cyclomatic complexity: 140 Second operand 4 states. [2019-11-15 22:14:23,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:14:23,494 INFO L93 Difference]: Finished difference Result 963 states and 1326 transitions. [2019-11-15 22:14:23,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:14:23,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 963 states and 1326 transitions. [2019-11-15 22:14:23,504 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 685 [2019-11-15 22:14:23,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 963 states to 963 states and 1326 transitions. [2019-11-15 22:14:23,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 963 [2019-11-15 22:14:23,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 963 [2019-11-15 22:14:23,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 963 states and 1326 transitions. [2019-11-15 22:14:23,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:14:23,518 INFO L688 BuchiCegarLoop]: Abstraction has 963 states and 1326 transitions. [2019-11-15 22:14:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states and 1326 transitions. [2019-11-15 22:14:23,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 365. [2019-11-15 22:14:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-11-15 22:14:23,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 502 transitions. [2019-11-15 22:14:23,539 INFO L711 BuchiCegarLoop]: Abstraction has 365 states and 502 transitions. [2019-11-15 22:14:23,539 INFO L591 BuchiCegarLoop]: Abstraction has 365 states and 502 transitions. [2019-11-15 22:14:23,540 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 22:14:23,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 502 transitions. [2019-11-15 22:14:23,542 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2019-11-15 22:14:23,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:14:23,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:14:23,544 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:14:23,544 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:23,544 INFO L791 eck$LassoCheckResult]: Stem: 2463#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25); 2325#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 2326#L74 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; 2470#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 2335#L530 assume 0 != main_~tmp~5; 2336#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2340#L105-1 [2019-11-15 22:14:23,545 INFO L793 eck$LassoCheckResult]: Loop: 2340#L105-1 assume !false; 2318#L555 assume test_~splverifierCounter~0 < 4; 2319#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 2459#L564 assume !(0 != test_~tmp~6); 2351#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 2327#L574 assume !(0 != test_~tmp___0~2); 2328#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 2332#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2408#L592-1 assume !(0 != ~pumpRunning~0); 2453#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2486#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 2565#L268-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 2433#L212-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 2434#L217-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 2452#L413-3 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~1 := 1; 2420#L413-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 2388#L419-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 2389#L272-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 2366#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 2323#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 2324#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 2340#L105-1 [2019-11-15 22:14:23,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:23,545 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-15 22:14:23,546 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:23,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313637874] [2019-11-15 22:14:23,546 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:23,546 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:23,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:23,800 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:14:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:23,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1218273519, now seen corresponding path program 1 times [2019-11-15 22:14:23,801 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:23,801 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457058335] [2019-11-15 22:14:23,802 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:23,802 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:23,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:23,840 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 22:14:23,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457058335] [2019-11-15 22:14:23,841 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:14:23,841 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 22:14:23,841 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530382364] [2019-11-15 22:14:23,841 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 22:14:23,842 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:14:23,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:14:23,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:14:23,842 INFO L87 Difference]: Start difference. First operand 365 states and 502 transitions. cyclomatic complexity: 140 Second operand 5 states. [2019-11-15 22:14:24,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:14:24,097 INFO L93 Difference]: Finished difference Result 1094 states and 1498 transitions. [2019-11-15 22:14:24,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:14:24,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1094 states and 1498 transitions. [2019-11-15 22:14:24,112 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 788 [2019-11-15 22:14:24,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1094 states to 1094 states and 1498 transitions. [2019-11-15 22:14:24,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1094 [2019-11-15 22:14:24,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1094 [2019-11-15 22:14:24,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1094 states and 1498 transitions. [2019-11-15 22:14:24,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:14:24,128 INFO L688 BuchiCegarLoop]: Abstraction has 1094 states and 1498 transitions. [2019-11-15 22:14:24,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states and 1498 transitions. [2019-11-15 22:14:24,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 401. [2019-11-15 22:14:24,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-11-15 22:14:24,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 538 transitions. [2019-11-15 22:14:24,149 INFO L711 BuchiCegarLoop]: Abstraction has 401 states and 538 transitions. [2019-11-15 22:14:24,150 INFO L591 BuchiCegarLoop]: Abstraction has 401 states and 538 transitions. [2019-11-15 22:14:24,154 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 22:14:24,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 401 states and 538 transitions. [2019-11-15 22:14:24,157 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2019-11-15 22:14:24,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:14:24,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:14:24,160 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:14:24,160 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:24,161 INFO L791 eck$LassoCheckResult]: Stem: 3944#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25); 3798#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 3799#L74 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; 3958#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 3806#L530 assume 0 != main_~tmp~5; 3807#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3975#L105-1 [2019-11-15 22:14:24,161 INFO L793 eck$LassoCheckResult]: Loop: 3975#L105-1 assume !false; 4060#L555 assume test_~splverifierCounter~0 < 4; 3934#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 3935#L564 assume !(0 != test_~tmp~6); 3824#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 3800#L574 assume !(0 != test_~tmp___0~2); 3801#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 3805#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3878#L592-1 assume !(0 != ~pumpRunning~0); 3928#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 4082#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3846#L268-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 3847#L212-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 3971#L217-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 3972#L413-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 4078#L413-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 4076#L419-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 4074#L272-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 4073#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 4072#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 4070#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 3975#L105-1 [2019-11-15 22:14:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:24,162 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 5 times [2019-11-15 22:14:24,163 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:24,171 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934398191] [2019-11-15 22:14:24,171 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:24,172 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:24,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:24,498 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:14:24,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:24,498 INFO L82 PathProgramCache]: Analyzing trace with hash 621628045, now seen corresponding path program 1 times [2019-11-15 22:14:24,499 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:24,499 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540919618] [2019-11-15 22:14:24,499 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:24,499 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:24,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:24,509 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:14:24,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:24,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1077699239, now seen corresponding path program 1 times [2019-11-15 22:14:24,510 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:24,511 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465451542] [2019-11-15 22:14:24,511 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:24,511 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:24,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:24,553 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 22:14:24,553 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465451542] [2019-11-15 22:14:24,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:14:24,554 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:14:24,554 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912967495] [2019-11-15 22:14:24,707 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-15 22:14:24,812 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:14:24,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:14:24,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:14:24,813 INFO L87 Difference]: Start difference. First operand 401 states and 538 transitions. cyclomatic complexity: 140 Second operand 5 states. [2019-11-15 22:14:25,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:14:25,130 INFO L93 Difference]: Finished difference Result 1363 states and 1825 transitions. [2019-11-15 22:14:25,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 22:14:25,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1363 states and 1825 transitions. [2019-11-15 22:14:25,147 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1003 [2019-11-15 22:14:25,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1363 states to 1363 states and 1825 transitions. [2019-11-15 22:14:25,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1363 [2019-11-15 22:14:25,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1363 [2019-11-15 22:14:25,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1363 states and 1825 transitions. [2019-11-15 22:14:25,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:14:25,168 INFO L688 BuchiCegarLoop]: Abstraction has 1363 states and 1825 transitions. [2019-11-15 22:14:25,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states and 1825 transitions. [2019-11-15 22:14:25,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 796. [2019-11-15 22:14:25,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2019-11-15 22:14:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1054 transitions. [2019-11-15 22:14:25,194 INFO L711 BuchiCegarLoop]: Abstraction has 796 states and 1054 transitions. [2019-11-15 22:14:25,194 INFO L591 BuchiCegarLoop]: Abstraction has 796 states and 1054 transitions. [2019-11-15 22:14:25,194 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-15 22:14:25,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 796 states and 1054 transitions. [2019-11-15 22:14:25,200 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 558 [2019-11-15 22:14:25,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:14:25,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:14:25,202 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:14:25,203 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] [2019-11-15 22:14:25,203 INFO L791 eck$LassoCheckResult]: Stem: 5723#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25); 5580#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 5581#L74 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; 5734#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 5589#L530 assume 0 != main_~tmp~5; 5590#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 5739#L105-1 [2019-11-15 22:14:25,203 INFO L793 eck$LassoCheckResult]: Loop: 5739#L105-1 assume !false; 6223#L555 assume test_~splverifierCounter~0 < 4; 6224#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 6319#L564 assume !(0 != test_~tmp~6); 6316#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 6315#L574 assume !(0 != test_~tmp___0~2); 5587#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 5588#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 5671#L592-1 assume !(0 != ~pumpRunning~0); 5712#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 5732#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 5633#L268-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 5634#L212-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 5692#L217-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 6362#L413-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 6361#L413-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 6360#L419-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 6358#L272-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 5670#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 6230#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 6229#L99 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 6228#L204 __utac_acc__Specification3_spec__1_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 6225#L105 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 5739#L105-1 [2019-11-15 22:14:25,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:25,204 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 6 times [2019-11-15 22:14:25,204 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:25,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011556933] [2019-11-15 22:14:25,206 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:25,206 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:25,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:25,483 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:14:25,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:25,484 INFO L82 PathProgramCache]: Analyzing trace with hash 384105791, now seen corresponding path program 1 times [2019-11-15 22:14:25,485 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:25,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258049131] [2019-11-15 22:14:25,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:25,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:25,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:25,513 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:14:25,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:25,514 INFO L82 PathProgramCache]: Analyzing trace with hash 581859033, now seen corresponding path program 1 times [2019-11-15 22:14:25,514 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:25,514 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963795324] [2019-11-15 22:14:25,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:25,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:25,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:14:25,783 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:14:25,969 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-11-15 22:14:55,910 WARN L191 SmtUtils]: Spent 29.86 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-11-15 22:15:10,790 WARN L191 SmtUtils]: Spent 14.88 s on a formula simplification that was a NOOP. DAG size: 449 [2019-11-15 22:15:10,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 10:15:10 BoogieIcfgContainer [2019-11-15 22:15:10,859 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 22:15:10,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:15:10,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:15:10,860 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:15:10,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:14:20" (3/4) ... [2019-11-15 22:15:10,864 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 22:15:10,952 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7a14d94e-1daa-4e32-bfed-afb2f5720cbe/bin/uautomizer/witness.graphml [2019-11-15 22:15:10,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:15:10,955 INFO L168 Benchmark]: Toolchain (without parser) took 52172.02 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.0 MB). Free memory was 937.0 MB in the beginning and 1.2 GB in the end (delta: -270.9 MB). Peak memory consumption was 42.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:15:10,955 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:15:10,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:15:10,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:15:10,957 INFO L168 Benchmark]: Boogie Preprocessor took 58.45 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:15:10,957 INFO L168 Benchmark]: RCFGBuilder took 1077.47 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:15:10,958 INFO L168 Benchmark]: BuchiAutomizer took 50111.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -147.4 MB). Peak memory consumption was 304.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:15:10,959 INFO L168 Benchmark]: Witness Printer took 93.19 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:15:10,962 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 745.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.45 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1077.47 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 50111.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -147.4 MB). Peak memory consumption was 304.1 MB. Max. memory is 11.5 GB. * Witness Printer took 93.19 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 796 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 50.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 48.5s. Construction of modules took 0.5s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1860 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 796 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1294 SDtfs, 2013 SDslu, 2151 SDs, 0 SdLazy, 324 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI4 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: 554]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45830c91=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e6c9ade=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47b60069=0, NULL=0, NULL=0, NULL=-21, NULL=-20, NULL=0, NULL=0, NULL=-5, retValue_acc=0, NULL=-4, NULL=-22, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, NULL=-14, tmp=0, NULL=-11, NULL=0, tmp___1=0, retValue_acc=0, NULL=-18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@287e9408=0, NULL=-13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46893aae=0, tmp___0=1, tmp=0, cleanupTimeShifts=4, NULL=-19, NULL=-15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bc8f0f2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bda61f=52, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@676748e6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@271f2fff=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-8, \result=1, NULL=-16, \result=0, retValue_acc=0, NULL=-3, NULL=0, retValue_acc=1, \result=1, head=0, pumpRunning=0, \result=0, NULL=-23, retValue_acc=1, NULL=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=-10, NULL=-2, NULL=0, NULL=0, tmp=1, NULL=-1, retValue_acc=1, tmp___2=52, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=-24, NULL=-12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a1af483=0, NULL=-6, tmp=0, tmp___1=0, head=0, tmp=0, NULL=-7, NULL=-25, NULL=0, NULL=0, NULL=0, NULL=-9, NULL=-17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f04fe74=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 Loop: [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND FALSE !(\read(tmp)) [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND TRUE \read(tmp___2) [L442] systemActive = 1 [L236] COND FALSE !(\read(pumpRunning)) [L243] COND TRUE \read(systemActive) [L291] int tmp ; [L294] COND FALSE !(\read(pumpRunning)) [L265] int tmp ; [L268] COND TRUE ! pumpRunning [L405] int retValue_acc ; [L406] int tmp ; [L407] int tmp___0 ; [L209] int retValue_acc ; [L212] COND TRUE waterLevel < 2 [L213] retValue_acc = 1 [L214] return (retValue_acc); [L411] tmp = isHighWaterSensorDry() [L413] COND TRUE \read(tmp) [L414] tmp___0 = 0 [L418] retValue_acc = tmp___0 [L419] return (retValue_acc); [L270] tmp = isHighWaterLevel() [L272] COND FALSE !(\read(tmp)) [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] tmp___0 = getWaterLevel() [L105] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...