./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 fda6d17e7962e4df44156ef592d697d85d9dd989 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-f6fb2bb [2019-11-19 20:03:52,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:03:52,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:03:52,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:03:52,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:03:52,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:03:52,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:03:52,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:03:52,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:03:52,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:03:52,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:03:52,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:03:52,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:03:52,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:03:52,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:03:52,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:03:52,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:03:52,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:03:52,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:03:52,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:03:52,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:03:52,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:03:52,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:03:52,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:03:52,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:03:52,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:03:52,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:03:52,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:03:52,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:03:52,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:03:52,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:03:52,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:03:52,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:03:52,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:03:52,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:03:52,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:03:52,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:03:52,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:03:52,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:03:52,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:03:52,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:03:52,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:03:52,934 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:03:52,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:03:52,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:03:52,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:03:52,940 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:03:52,940 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:03:52,941 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:03:52,942 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:03:52,942 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:03:52,942 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:03:52,943 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:03:52,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:03:52,944 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:03:52,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:03:52,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:03:52,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:03:52,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:03:52,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:03:52,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:03:52,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:03:52,947 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:03:52,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:03:52,947 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:03:52,948 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:03:52,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:03:52,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:03:52,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:03:52,949 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:03:52,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:03:52,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:03:52,951 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:03:52,953 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:03:52,953 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> fda6d17e7962e4df44156ef592d697d85d9dd989 [2019-11-19 20:03:53,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:03:53,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:03:53,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:03:53,276 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:03:53,277 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:03:53,278 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-11-19 20:03:53,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/803004246/dff239d0deb24044b3a6f15b6d286d7c/FLAG77bb1729b [2019-11-19 20:03:53,842 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:03:53,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-11-19 20:03:53,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/803004246/dff239d0deb24044b3a6f15b6d286d7c/FLAG77bb1729b [2019-11-19 20:03:54,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/803004246/dff239d0deb24044b3a6f15b6d286d7c [2019-11-19 20:03:54,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:03:54,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:03:54,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:03:54,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:03:54,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:03:54,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b05fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54, skipping insertion in model container [2019-11-19 20:03:54,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,219 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:03:54,291 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:03:54,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:03:54,733 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:03:54,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:03:54,880 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:03:54,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54 WrapperNode [2019-11-19 20:03:54,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:03:54,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:03:54,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:03:54,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:03:54,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:03:54,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:03:54,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:03:54,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:03:54,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:54,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2019-11-19 20:03:55,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:03:55,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:03:55,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:03:55,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:03:55,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:03:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:03:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 20:03:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:03:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:03:55,963 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:03:55,963 INFO L285 CfgBuilder]: Removed 166 assume(true) statements. [2019-11-19 20:03:55,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:55 BoogieIcfgContainer [2019-11-19 20:03:55,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:03:55,965 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:03:55,965 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:03:55,970 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:03:55,971 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:03:55,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:03:54" (1/3) ... [2019-11-19 20:03:55,972 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fd3fb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:03:55, skipping insertion in model container [2019-11-19 20:03:55,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:03:55,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (2/3) ... [2019-11-19 20:03:55,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fd3fb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:03:55, skipping insertion in model container [2019-11-19 20:03:55,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:03:55,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:55" (3/3) ... [2019-11-19 20:03:55,976 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2019-11-19 20:03:56,028 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:03:56,028 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:03:56,029 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:03:56,029 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:03:56,029 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:03:56,030 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:03:56,030 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:03:56,030 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:03:56,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2019-11-19 20:03:56,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-11-19 20:03:56,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:03:56,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:03:56,094 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:03:56,095 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:56,095 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:03:56,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2019-11-19 20:03:56,103 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-11-19 20:03:56,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:03:56,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:03:56,105 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:03:56,105 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:56,111 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 12#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 8#L73true main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 22#L904true assume 0 != main_~tmp~7; 76#L881true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 82#L933-1true [2019-11-19 20:03:56,113 INFO L796 eck$LassoCheckResult]: Loop: 82#L933-1true assume !false; 74#L391true assume test_~splverifierCounter~0 < 4; 23#L392true test_~tmp~3 := test_#t~nondet31;havoc test_#t~nondet31; 42#L400true assume !(0 != test_~tmp~3); 43#L400-1true test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 93#L410true assume !(0 != test_~tmp___0~1); 83#L410-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 3#L420true assume 0 != test_~tmp___2~0; 102#L426-1true assume !(0 != ~pumpRunning~0); 73#L193true assume !(0 != ~systemActive~0); 111#L200true havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 18#L128-1true __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 114#L927true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 82#L933-1true [2019-11-19 20:03:56,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:56,120 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-19 20:03:56,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:56,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506577311] [2019-11-19 20:03:56,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:57,006 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:57,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:57,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1671401922, now seen corresponding path program 1 times [2019-11-19 20:03:57,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:57,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490189943] [2019-11-19 20:03:57,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:57,025 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:57,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:57,027 INFO L82 PathProgramCache]: Analyzing trace with hash 42877016, now seen corresponding path program 1 times [2019-11-19 20:03:57,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:57,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143407725] [2019-11-19 20:03:57,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:03:57,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:03:57,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143407725] [2019-11-19 20:03:57,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:03:57,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 20:03:57,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874420950] [2019-11-19 20:03:57,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:03:57,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 20:03:57,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 20:03:57,320 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 6 states. [2019-11-19 20:03:57,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:03:57,546 INFO L93 Difference]: Finished difference Result 282 states and 405 transitions. [2019-11-19 20:03:57,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 20:03:57,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 282 states and 405 transitions. [2019-11-19 20:03:57,565 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 181 [2019-11-19 20:03:57,583 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 282 states to 261 states and 384 transitions. [2019-11-19 20:03:57,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 261 [2019-11-19 20:03:57,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 261 [2019-11-19 20:03:57,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 261 states and 384 transitions. [2019-11-19 20:03:57,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:03:57,595 INFO L688 BuchiCegarLoop]: Abstraction has 261 states and 384 transitions. [2019-11-19 20:03:57,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states and 384 transitions. [2019-11-19 20:03:57,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 156. [2019-11-19 20:03:57,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-19 20:03:57,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2019-11-19 20:03:57,636 INFO L711 BuchiCegarLoop]: Abstraction has 156 states and 228 transitions. [2019-11-19 20:03:57,636 INFO L591 BuchiCegarLoop]: Abstraction has 156 states and 228 transitions. [2019-11-19 20:03:57,636 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:03:57,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 156 states and 228 transitions. [2019-11-19 20:03:57,638 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2019-11-19 20:03:57,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:03:57,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:03:57,639 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:03:57,640 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:57,640 INFO L794 eck$LassoCheckResult]: Stem: 522#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 431#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 432#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 427#L73 main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 428#L904 assume 0 != main_~tmp~7; 453#L881 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 449#L933-1 [2019-11-19 20:03:57,640 INFO L796 eck$LassoCheckResult]: Loop: 449#L933-1 assume !false; 515#L391 assume test_~splverifierCounter~0 < 4; 454#L392 test_~tmp~3 := test_#t~nondet31;havoc test_#t~nondet31; 455#L400 assume !(0 != test_~tmp~3); 445#L400-1 test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 478#L410 assume !(0 != test_~tmp___0~1); 521#L410-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 416#L420 assume 0 != test_~tmp___2~0; 417#L426-1 assume !(0 != ~pumpRunning~0); 500#L193 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 483#L251 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 484#L225-1 assume !(0 == ~pumpRunning~0); 434#L200 havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 446#L128-1 __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 447#L927 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 449#L933-1 [2019-11-19 20:03:57,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:57,641 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-19 20:03:57,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:57,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141346482] [2019-11-19 20:03:57,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:57,936 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:57,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:57,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1955219765, now seen corresponding path program 1 times [2019-11-19 20:03:57,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:57,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311432852] [2019-11-19 20:03:57,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:03:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:03:57,955 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311432852] [2019-11-19 20:03:57,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:03:57,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:03:57,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574094818] [2019-11-19 20:03:57,960 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:03:57,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:03:57,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:03:57,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:03:57,961 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. cyclomatic complexity: 75 Second operand 3 states. [2019-11-19 20:03:58,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:03:58,107 INFO L93 Difference]: Finished difference Result 201 states and 277 transitions. [2019-11-19 20:03:58,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:03:58,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 277 transitions. [2019-11-19 20:03:58,112 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2019-11-19 20:03:58,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 201 states and 277 transitions. [2019-11-19 20:03:58,120 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2019-11-19 20:03:58,121 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2019-11-19 20:03:58,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 277 transitions. [2019-11-19 20:03:58,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:03:58,126 INFO L688 BuchiCegarLoop]: Abstraction has 201 states and 277 transitions. [2019-11-19 20:03:58,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 277 transitions. [2019-11-19 20:03:58,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2019-11-19 20:03:58,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-11-19 20:03:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 277 transitions. [2019-11-19 20:03:58,144 INFO L711 BuchiCegarLoop]: Abstraction has 201 states and 277 transitions. [2019-11-19 20:03:58,145 INFO L591 BuchiCegarLoop]: Abstraction has 201 states and 277 transitions. [2019-11-19 20:03:58,145 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:03:58,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 277 transitions. [2019-11-19 20:03:58,147 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2019-11-19 20:03:58,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:03:58,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:03:58,149 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:03:58,149 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] [2019-11-19 20:03:58,149 INFO L794 eck$LassoCheckResult]: Stem: 896#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 794#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 795#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 790#L73 main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 791#L904 assume 0 != main_~tmp~7; 816#L881 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 885#L933-1 [2019-11-19 20:03:58,150 INFO L796 eck$LassoCheckResult]: Loop: 885#L933-1 assume !false; 883#L391 assume test_~splverifierCounter~0 < 4; 817#L392 test_~tmp~3 := test_#t~nondet31;havoc test_#t~nondet31; 818#L400 assume !(0 != test_~tmp~3); 808#L400-1 test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 841#L410 assume !(0 != test_~tmp___0~1); 893#L410-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 779#L420 assume 0 != test_~tmp___2~0; 780#L426-1 assume !(0 != ~pumpRunning~0); 882#L193 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 847#L251 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 848#L225-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 868#L168-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 869#L173-1 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 838#L353-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 839#L353-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 825#L359-1 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 826#L229-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 797#L200 havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 809#L128-1 __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 810#L927 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 885#L933-1 [2019-11-19 20:03:58,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:58,151 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-19 20:03:58,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:58,151 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944029045] [2019-11-19 20:03:58,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:58,504 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:58,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:58,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1592970081, now seen corresponding path program 1 times [2019-11-19 20:03:58,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:58,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645432623] [2019-11-19 20:03:58,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:58,535 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:58,536 INFO L82 PathProgramCache]: Analyzing trace with hash 2049041275, now seen corresponding path program 1 times [2019-11-19 20:03:58,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:58,537 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735871035] [2019-11-19 20:03:58,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:03:58,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:03:58,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735871035] [2019-11-19 20:03:58,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:03:58,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:03:58,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383619668] [2019-11-19 20:03:58,900 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-19 20:03:58,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:03:58,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 20:03:58,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 20:03:58,998 INFO L87 Difference]: Start difference. First operand 201 states and 277 transitions. cyclomatic complexity: 79 Second operand 5 states. [2019-11-19 20:03:59,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:03:59,216 INFO L93 Difference]: Finished difference Result 663 states and 915 transitions. [2019-11-19 20:03:59,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 20:03:59,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 663 states and 915 transitions. [2019-11-19 20:03:59,226 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 495 [2019-11-19 20:03:59,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 663 states to 663 states and 915 transitions. [2019-11-19 20:03:59,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 663 [2019-11-19 20:03:59,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 663 [2019-11-19 20:03:59,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 663 states and 915 transitions. [2019-11-19 20:03:59,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:03:59,240 INFO L688 BuchiCegarLoop]: Abstraction has 663 states and 915 transitions. [2019-11-19 20:03:59,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states and 915 transitions. [2019-11-19 20:03:59,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 396. [2019-11-19 20:03:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-11-19 20:03:59,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 536 transitions. [2019-11-19 20:03:59,265 INFO L711 BuchiCegarLoop]: Abstraction has 396 states and 536 transitions. [2019-11-19 20:03:59,265 INFO L591 BuchiCegarLoop]: Abstraction has 396 states and 536 transitions. [2019-11-19 20:03:59,265 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 20:03:59,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 396 states and 536 transitions. [2019-11-19 20:03:59,268 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 284 [2019-11-19 20:03:59,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:03:59,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:03:59,269 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:03:59,270 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] [2019-11-19 20:03:59,270 INFO L794 eck$LassoCheckResult]: Stem: 1782#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 1679#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 1680#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1672#L73 main_#t~ret70 := valid_product_#res;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 1673#L904 assume 0 != main_~tmp~7; 1701#L881 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1772#L933-1 [2019-11-19 20:03:59,270 INFO L796 eck$LassoCheckResult]: Loop: 1772#L933-1 assume !false; 1963#L391 assume test_~splverifierCounter~0 < 4; 1964#L392 test_~tmp~3 := test_#t~nondet31;havoc test_#t~nondet31; 2041#L400 assume !(0 != test_~tmp~3); 2039#L400-1 test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 2037#L410 assume !(0 != test_~tmp___0~1); 2036#L410-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 2025#L420 assume 0 != test_~tmp___2~0; 1788#L426-1 assume !(0 != ~pumpRunning~0); 1789#L193 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1731#L251 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1732#L225-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 1754#L168-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 1755#L173-1 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 1722#L353-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1723#L353-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1708#L359-1 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 1709#L229-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1677#L200 havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 1975#L128-1 __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 1974#L927 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);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; 1973#L160 __utac_acc__Specification3_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 1971#L933 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1772#L933-1 [2019-11-19 20:03:59,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:59,271 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-19 20:03:59,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:59,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712579868] [2019-11-19 20:03:59,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:59,514 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:59,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:59,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1835898419, now seen corresponding path program 1 times [2019-11-19 20:03:59,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:59,516 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134956448] [2019-11-19 20:03:59,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:59,529 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:59,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:59,530 INFO L82 PathProgramCache]: Analyzing trace with hash 2033651661, now seen corresponding path program 1 times [2019-11-19 20:03:59,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:59,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586567013] [2019-11-19 20:03:59,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:59,851 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:00,032 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-19 20:04:25,158 WARN L191 SmtUtils]: Spent 25.05 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-11-19 20:04:37,846 WARN L191 SmtUtils]: Spent 12.69 s on a formula simplification that was a NOOP. DAG size: 449 [2019-11-19 20:04:37,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:04:37 BoogieIcfgContainer [2019-11-19 20:04:37,945 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:04:37,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:04:37,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:04:37,947 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:04:37,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:55" (3/4) ... [2019-11-19 20:04:37,951 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 20:04:38,025 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:04:38,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:04:38,027 INFO L168 Benchmark]: Toolchain (without parser) took 43828.15 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 327.7 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -240.9 MB). Peak memory consumption was 86.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:38,028 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:04:38,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -123.0 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:38,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:38,030 INFO L168 Benchmark]: Boogie Preprocessor took 45.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:04:38,031 INFO L168 Benchmark]: RCFGBuilder took 960.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:38,032 INFO L168 Benchmark]: BuchiAutomizer took 41980.07 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 218.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -202.6 MB). Peak memory consumption was 400.0 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:38,032 INFO L168 Benchmark]: Witness Printer took 79.57 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:38,036 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 682.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -123.0 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 960.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41980.07 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 218.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -202.6 MB). Peak memory consumption was 400.0 MB. Max. memory is 11.5 GB. * Witness Printer took 79.57 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 396 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 40.9s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 372 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 396 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 557 SDtfs, 1536 SDslu, 1462 SDs, 0 SdLazy, 138 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 390]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=434} State at position 1 is {NULL=-22, NULL=0, NULL=0, NULL=0, NULL=-19, NULL=-7, NULL=0, NULL=434, NULL=-12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36f5046f=0, NULL=-11, NULL=-17, methaneLevelCritical=0, NULL=-20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33063266=0, tmp___0=0, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a087a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72df10bc=0, NULL=0, NULL=-23, retValue_acc=0, tmp___1=0, NULL=-16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77e803d8=0, NULL=-2, NULL=0, NULL=0, NULL=0, tmp=0, NULL=0, cleanupTimeShifts=4, NULL=-3, NULL=-21, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e20859a=0, NULL=432, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50e6bb3b=53, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=433, \result=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, retValue_acc=0, NULL=0, NULL=-15, \result=1, head=0, pumpRunning=0, NULL=-10, \result=0, NULL=-5, retValue_acc=1, NULL=0, NULL=-14, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23cae6a8=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fa21188=0, NULL=-8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26addb99=0, tmp=1, retValue_acc=1, tmp___2=53, tmp___0=0, splverifierCounter=0, \result=0, NULL=-13, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5695e473=0, tmp___1=0, head=0, NULL=-6, NULL=-18, NULL=-1, NULL=-4, NULL=-9} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 Loop: [L390] COND TRUE 1 [L392] COND TRUE splverifierCounter < 4 [L398] tmp = __VERIFIER_nondet_int() [L400] COND FALSE !(\read(tmp)) [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND TRUE \read(tmp___2) [L193] COND FALSE !(\read(pumpRunning)) [L200] COND TRUE \read(systemActive) [L248] int tmp ; [L251] COND FALSE !(\read(pumpRunning)) [L222] int tmp ; [L225] COND TRUE ! pumpRunning [L345] int retValue_acc ; [L346] int tmp ; [L347] int tmp___0 ; [L165] int retValue_acc ; [L168] COND TRUE waterLevel < 2 [L169] retValue_acc = 1 [L170] return (retValue_acc); [L351] tmp = isHighWaterSensorDry() [L353] COND TRUE \read(tmp) [L354] tmp___0 = 0 [L358] retValue_acc = tmp___0 [L359] return (retValue_acc); [L227] tmp = isHighWaterLevel() [L229] COND FALSE !(\read(tmp)) [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L931] tmp___0 = getWaterLevel() [L933] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...