./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab 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_spec2_product57.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 57406ed1e8515a3807c9750d676c6ccf8b3f94ad .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-28 03:31:25,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:31:25,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:31:25,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:31:25,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:31:25,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:31:25,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:31:25,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:31:25,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:31:25,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:31:25,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:31:25,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:31:25,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:31:25,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:31:25,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:31:25,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:31:25,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:31:25,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:31:25,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:31:25,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:31:25,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:31:25,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:31:25,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:31:25,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:31:25,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:31:25,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:31:25,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:31:25,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:31:25,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:31:25,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:31:25,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:31:25,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:31:25,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:31:25,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:31:25,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:31:25,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:31:25,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:31:25,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:31:25,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:31:25,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:31:25,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:31:25,909 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:31:25,938 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:31:25,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:31:25,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:31:25,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:31:25,941 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:31:25,944 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:31:25,944 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:31:25,944 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:31:25,945 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:31:25,945 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:31:25,945 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:31:25,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:31:25,945 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:31:25,946 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:31:25,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:31:25,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:31:25,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:31:25,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:31:25,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:31:25,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:31:25,949 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:31:25,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:31:25,949 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:31:25,950 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:31:25,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:31:25,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:31:25,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:31:25,951 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:31:25,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:31:25,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:31:25,951 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:31:25,954 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:31:25,954 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 -> 57406ed1e8515a3807c9750d676c6ccf8b3f94ad [2019-11-28 03:31:26,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:31:26,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:31:26,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:31:26,280 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:31:26,281 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:31:26,281 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2019-11-28 03:31:26,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d48b6957/1237f1900e064ba1b794c5e334248c38/FLAGa661f78f5 [2019-11-28 03:31:26,932 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:31:26,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2019-11-28 03:31:26,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d48b6957/1237f1900e064ba1b794c5e334248c38/FLAGa661f78f5 [2019-11-28 03:31:27,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d48b6957/1237f1900e064ba1b794c5e334248c38 [2019-11-28 03:31:27,227 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:31:27,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:31:27,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:31:27,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:31:27,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:31:27,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff623f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27, skipping insertion in model container [2019-11-28 03:31:27,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:31:27,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:31:27,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:31:27,706 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:31:27,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:31:27,846 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:31:27,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27 WrapperNode [2019-11-28 03:31:27,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:31:27,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:31:27,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:31:27,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:31:27,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:31:27,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:31:27,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:31:27,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:31:27,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:31:27,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:31:27,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:31:27,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:31:27,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (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 [2019-11-28 03:31:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:31:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:31:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:31:28,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:31:29,006 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:31:29,007 INFO L297 CfgBuilder]: Removed 194 assume(true) statements. [2019-11-28 03:31:29,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:29 BoogieIcfgContainer [2019-11-28 03:31:29,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:31:29,009 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:31:29,009 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:31:29,013 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:31:29,014 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:31:29,014 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:31:27" (1/3) ... [2019-11-28 03:31:29,016 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@262cf708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:31:29, skipping insertion in model container [2019-11-28 03:31:29,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:31:29,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27" (2/3) ... [2019-11-28 03:31:29,017 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@262cf708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:31:29, skipping insertion in model container [2019-11-28 03:31:29,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:31:29,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:29" (3/3) ... [2019-11-28 03:31:29,019 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2019-11-28 03:31:29,069 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:31:29,070 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:31:29,070 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:31:29,070 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:31:29,071 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:31:29,071 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:31:29,071 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:31:29,071 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:31:29,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states. [2019-11-28 03:31:29,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 03:31:29,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:29,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:29,138 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:29,138 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:29,138 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:31:29,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states. [2019-11-28 03:31:29,146 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 03:31:29,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:29,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:29,148 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:29,148 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:29,154 INFO L794 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);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);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 13#L-1true havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~6, main_~tmp~0;havoc main_~retValue_acc~6;havoc main_~tmp~0; 16#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 12#L73true main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 48#L276true assume 0 != main_~tmp~0; 124#L250true ~methAndRunningLastTime~0 := 0; 70#L298true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 49#L309-1true [2019-11-28 03:31:29,155 INFO L796 eck$LassoCheckResult]: Loop: 49#L309-1true assume !false; 113#L559true assume test_~splverifierCounter~0 < 4; 34#L560true test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 37#L568true assume !(0 != test_~tmp~7); 39#L568-1true test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 117#L578true assume !(0 != test_~tmp___0~3); 119#L578-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 7#L588true assume 0 != test_~tmp___2~0; 133#L594-2true assume !(0 != ~pumpRunning~0); 14#L340true assume !(0 != ~systemActive~0); 108#L347true havoc __utac_acc__Specification2_spec__2_#t~ret12, __utac_acc__Specification2_spec__2_#t~ret13, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 126#L129-2true __utac_acc__Specification2_spec__2_#t~ret12 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret12;havoc __utac_acc__Specification2_spec__2_#t~ret12; 65#L309true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 49#L309-1true [2019-11-28 03:31:29,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:29,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:31:29,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:29,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811407289] [2019-11-28 03:31:29,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:29,587 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:29,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:29,588 INFO L82 PathProgramCache]: Analyzing trace with hash 5185098, now seen corresponding path program 1 times [2019-11-28 03:31:29,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:29,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873587437] [2019-11-28 03:31:29,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:29,606 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:29,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:29,608 INFO L82 PathProgramCache]: Analyzing trace with hash 838481604, now seen corresponding path program 1 times [2019-11-28 03:31:29,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:29,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040614652] [2019-11-28 03:31:29,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:29,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:31:29,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040614652] [2019-11-28 03:31:29,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:29,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:31:29,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080563856] [2019-11-28 03:31:29,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:29,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:31:29,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 03:31:29,942 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 6 states. [2019-11-28 03:31:30,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:30,121 INFO L93 Difference]: Finished difference Result 136 states and 194 transitions. [2019-11-28 03:31:30,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 03:31:30,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 194 transitions. [2019-11-28 03:31:30,131 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 03:31:30,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 129 states and 187 transitions. [2019-11-28 03:31:30,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2019-11-28 03:31:30,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2019-11-28 03:31:30,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 187 transitions. [2019-11-28 03:31:30,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:30,152 INFO L688 BuchiCegarLoop]: Abstraction has 129 states and 187 transitions. [2019-11-28 03:31:30,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states and 187 transitions. [2019-11-28 03:31:30,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-11-28 03:31:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-28 03:31:30,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 187 transitions. [2019-11-28 03:31:30,213 INFO L711 BuchiCegarLoop]: Abstraction has 129 states and 187 transitions. [2019-11-28 03:31:30,213 INFO L591 BuchiCegarLoop]: Abstraction has 129 states and 187 transitions. [2019-11-28 03:31:30,214 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:31:30,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 187 transitions. [2019-11-28 03:31:30,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 03:31:30,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:30,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:30,221 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:30,221 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:30,223 INFO L794 eck$LassoCheckResult]: Stem: 418#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);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);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 314#L-1 havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~6, main_~tmp~0;havoc main_~retValue_acc~6;havoc main_~tmp~0; 315#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; 312#L73 main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 313#L276 assume 0 != main_~tmp~0; 360#L250 ~methAndRunningLastTime~0 := 0; 390#L298 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 361#L309-1 [2019-11-28 03:31:30,223 INFO L796 eck$LassoCheckResult]: Loop: 361#L309-1 assume !false; 362#L559 assume test_~splverifierCounter~0 < 4; 345#L560 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 346#L568 assume !(0 != test_~tmp~7); 351#L568-1 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 354#L578 assume !(0 != test_~tmp___0~3); 383#L578-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 301#L588 assume 0 != test_~tmp___2~0; 303#L594-2 assume !(0 != ~pumpRunning~0); 316#L340 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 290#L398 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 291#L372-1 assume !(0 == ~pumpRunning~0); 295#L347 havoc __utac_acc__Specification2_spec__2_#t~ret12, __utac_acc__Specification2_spec__2_#t~ret13, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 413#L129-2 __utac_acc__Specification2_spec__2_#t~ret12 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret12;havoc __utac_acc__Specification2_spec__2_#t~ret12; 381#L309 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 361#L309-1 [2019-11-28 03:31:30,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:31:30,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329395134] [2019-11-28 03:31:30,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,351 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:30,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1702188339, now seen corresponding path program 1 times [2019-11-28 03:31:30,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648974529] [2019-11-28 03:31:30,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:31:30,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648974529] [2019-11-28 03:31:30,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:30,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:31:30,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128186199] [2019-11-28 03:31:30,378 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:30,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:30,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:31:30,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:31:30,379 INFO L87 Difference]: Start difference. First operand 129 states and 187 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-11-28 03:31:30,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:30,494 INFO L93 Difference]: Finished difference Result 173 states and 241 transitions. [2019-11-28 03:31:30,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:31:30,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173 states and 241 transitions. [2019-11-28 03:31:30,498 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2019-11-28 03:31:30,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173 states to 173 states and 241 transitions. [2019-11-28 03:31:30,500 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2019-11-28 03:31:30,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2019-11-28 03:31:30,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 241 transitions. [2019-11-28 03:31:30,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:30,503 INFO L688 BuchiCegarLoop]: Abstraction has 173 states and 241 transitions. [2019-11-28 03:31:30,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 241 transitions. [2019-11-28 03:31:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2019-11-28 03:31:30,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-11-28 03:31:30,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 241 transitions. [2019-11-28 03:31:30,513 INFO L711 BuchiCegarLoop]: Abstraction has 173 states and 241 transitions. [2019-11-28 03:31:30,513 INFO L591 BuchiCegarLoop]: Abstraction has 173 states and 241 transitions. [2019-11-28 03:31:30,513 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:31:30,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 241 transitions. [2019-11-28 03:31:30,515 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2019-11-28 03:31:30,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:30,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:30,517 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:30,517 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] [2019-11-28 03:31:30,517 INFO L794 eck$LassoCheckResult]: Stem: 734#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);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);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 620#L-1 havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~6, main_~tmp~0;havoc main_~retValue_acc~6;havoc main_~tmp~0; 621#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; 617#L73 main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 618#L276 assume 0 != main_~tmp~0; 669#L250 ~methAndRunningLastTime~0 := 0; 702#L298 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 670#L309-1 [2019-11-28 03:31:30,518 INFO L796 eck$LassoCheckResult]: Loop: 670#L309-1 assume !false; 671#L559 assume test_~splverifierCounter~0 < 4; 652#L560 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 653#L568 assume !(0 != test_~tmp~7); 659#L568-1 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 663#L578 assume !(0 != test_~tmp___0~3); 693#L578-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 609#L588 assume 0 != test_~tmp___2~0; 611#L594-2 assume !(0 != ~pumpRunning~0); 619#L340 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 598#L398 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 599#L372-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 633#L169-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 634#L174-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 688#L518-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 689#L518-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 665#L524-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 605#L376-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 602#L347 havoc __utac_acc__Specification2_spec__2_#t~ret12, __utac_acc__Specification2_spec__2_#t~ret13, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 727#L129-2 __utac_acc__Specification2_spec__2_#t~ret12 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret12;havoc __utac_acc__Specification2_spec__2_#t~ret12; 691#L309 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 670#L309-1 [2019-11-28 03:31:30,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 03:31:30,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88823457] [2019-11-28 03:31:30,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,618 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:30,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,619 INFO L82 PathProgramCache]: Analyzing trace with hash -926194367, now seen corresponding path program 1 times [2019-11-28 03:31:30,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588881201] [2019-11-28 03:31:30,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:31:30,655 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588881201] [2019-11-28 03:31:30,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:30,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 03:31:30,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828720837] [2019-11-28 03:31:30,657 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:30,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:30,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 03:31:30,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 03:31:30,659 INFO L87 Difference]: Start difference. First operand 173 states and 241 transitions. cyclomatic complexity: 70 Second operand 4 states. [2019-11-28 03:31:30,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:30,798 INFO L93 Difference]: Finished difference Result 481 states and 661 transitions. [2019-11-28 03:31:30,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 03:31:30,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 481 states and 661 transitions. [2019-11-28 03:31:30,805 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 338 [2019-11-28 03:31:30,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 481 states to 481 states and 661 transitions. [2019-11-28 03:31:30,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2019-11-28 03:31:30,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 481 [2019-11-28 03:31:30,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 481 states and 661 transitions. [2019-11-28 03:31:30,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:30,814 INFO L688 BuchiCegarLoop]: Abstraction has 481 states and 661 transitions. [2019-11-28 03:31:30,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states and 661 transitions. [2019-11-28 03:31:30,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 185. [2019-11-28 03:31:30,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-11-28 03:31:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 253 transitions. [2019-11-28 03:31:30,827 INFO L711 BuchiCegarLoop]: Abstraction has 185 states and 253 transitions. [2019-11-28 03:31:30,827 INFO L591 BuchiCegarLoop]: Abstraction has 185 states and 253 transitions. [2019-11-28 03:31:30,827 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:31:30,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 185 states and 253 transitions. [2019-11-28 03:31:30,829 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-11-28 03:31:30,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:30,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:30,830 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:30,831 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] [2019-11-28 03:31:30,831 INFO L794 eck$LassoCheckResult]: Stem: 1405#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);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);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1284#L-1 havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~6, main_~tmp~0;havoc main_~retValue_acc~6;havoc main_~tmp~0; 1285#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; 1281#L73 main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 1282#L276 assume 0 != main_~tmp~0; 1339#L250 ~methAndRunningLastTime~0 := 0; 1372#L298 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1340#L309-1 [2019-11-28 03:31:30,831 INFO L796 eck$LassoCheckResult]: Loop: 1340#L309-1 assume !false; 1341#L559 assume test_~splverifierCounter~0 < 4; 1320#L560 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 1321#L568 assume !(0 != test_~tmp~7); 1329#L568-1 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 1330#L578 assume !(0 != test_~tmp___0~3); 1362#L578-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 1271#L588 assume 0 != test_~tmp___2~0; 1273#L594-2 assume !(0 != ~pumpRunning~0); 1283#L340 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1262#L398 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1263#L372-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 1300#L169-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 1301#L174-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 1357#L518-3 assume !(0 != isHighWaterLevel_~tmp~5);isHighWaterLevel_~tmp___0~1 := 1; 1358#L518-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1334#L524-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1269#L376-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 1266#L347 havoc __utac_acc__Specification2_spec__2_#t~ret12, __utac_acc__Specification2_spec__2_#t~ret13, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 1400#L129-2 __utac_acc__Specification2_spec__2_#t~ret12 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret12;havoc __utac_acc__Specification2_spec__2_#t~ret12; 1360#L309 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 1340#L309-1 [2019-11-28 03:31:30,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 03:31:30,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567837001] [2019-11-28 03:31:30,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,910 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:30,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,911 INFO L82 PathProgramCache]: Analyzing trace with hash 848812995, now seen corresponding path program 1 times [2019-11-28 03:31:30,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889367547] [2019-11-28 03:31:30,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:30,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:31:30,955 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889367547] [2019-11-28 03:31:30,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:30,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:31:30,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537092322] [2019-11-28 03:31:30,957 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:30,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:30,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:31:30,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:31:30,958 INFO L87 Difference]: Start difference. First operand 185 states and 253 transitions. cyclomatic complexity: 70 Second operand 5 states. [2019-11-28 03:31:31,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:31,154 INFO L93 Difference]: Finished difference Result 545 states and 745 transitions. [2019-11-28 03:31:31,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 03:31:31,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 545 states and 745 transitions. [2019-11-28 03:31:31,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 388 [2019-11-28 03:31:31,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 545 states to 545 states and 745 transitions. [2019-11-28 03:31:31,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 545 [2019-11-28 03:31:31,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 545 [2019-11-28 03:31:31,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 545 states and 745 transitions. [2019-11-28 03:31:31,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:31,170 INFO L688 BuchiCegarLoop]: Abstraction has 545 states and 745 transitions. [2019-11-28 03:31:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states and 745 transitions. [2019-11-28 03:31:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 203. [2019-11-28 03:31:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-11-28 03:31:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 271 transitions. [2019-11-28 03:31:31,199 INFO L711 BuchiCegarLoop]: Abstraction has 203 states and 271 transitions. [2019-11-28 03:31:31,199 INFO L591 BuchiCegarLoop]: Abstraction has 203 states and 271 transitions. [2019-11-28 03:31:31,200 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:31:31,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 203 states and 271 transitions. [2019-11-28 03:31:31,202 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2019-11-28 03:31:31,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:31,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:31,203 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:31,204 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] [2019-11-28 03:31:31,204 INFO L794 eck$LassoCheckResult]: Stem: 2162#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);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);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2025#L-1 havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~6, main_~tmp~0;havoc main_~retValue_acc~6;havoc main_~tmp~0; 2026#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; 2023#L73 main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 2024#L276 assume 0 != main_~tmp~0; 2089#L250 ~methAndRunningLastTime~0 := 0; 2124#L298 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2090#L309-1 [2019-11-28 03:31:31,205 INFO L796 eck$LassoCheckResult]: Loop: 2090#L309-1 assume !false; 2091#L559 assume test_~splverifierCounter~0 < 4; 2159#L560 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 2190#L568 assume !(0 != test_~tmp~7); 2075#L568-1 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 2076#L578 assume !(0 != test_~tmp___0~3); 2118#L578-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 2014#L588 assume 0 != test_~tmp___2~0; 2016#L594-2 assume !(0 != ~pumpRunning~0); 2027#L340 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2006#L398 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 2007#L372-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 2044#L169-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 2046#L174-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 2138#L518-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 2175#L518-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 2081#L524-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 2082#L376-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 2155#L347 havoc __utac_acc__Specification2_spec__2_#t~ret12, __utac_acc__Specification2_spec__2_#t~ret13, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 2156#L129-2 __utac_acc__Specification2_spec__2_#t~ret12 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret12;havoc __utac_acc__Specification2_spec__2_#t~ret12; 2115#L309 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 2090#L309-1 [2019-11-28 03:31:31,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:31,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2019-11-28 03:31:31,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:31,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177360739] [2019-11-28 03:31:31,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,283 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:31,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:31,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1606252737, now seen corresponding path program 1 times [2019-11-28 03:31:31,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:31,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120153101] [2019-11-28 03:31:31,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,309 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:31,311 INFO L82 PathProgramCache]: Analyzing trace with hash 166888889, now seen corresponding path program 1 times [2019-11-28 03:31:31,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:31,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945488679] [2019-11-28 03:31:31,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,424 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:31,573 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-28 03:31:53,672 WARN L192 SmtUtils]: Spent 22.03 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:32:06,238 WARN L192 SmtUtils]: Spent 12.55 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:32:06,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:32:06 BoogieIcfgContainer [2019-11-28 03:32:06,315 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:32:06,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:32:06,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:32:06,316 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:32:06,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:29" (3/4) ... [2019-11-28 03:32:06,320 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:32:06,380 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:32:06,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:32:06,382 INFO L168 Benchmark]: Toolchain (without parser) took 39153.99 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 271.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 97.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:06,383 INFO L168 Benchmark]: CDTParser took 1.03 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. [2019-11-28 03:32:06,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -103.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:06,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.40 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:06,384 INFO L168 Benchmark]: Boogie Preprocessor took 48.84 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. [2019-11-28 03:32:06,386 INFO L168 Benchmark]: RCFGBuilder took 1024.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 987.3 MB in the end (delta: 67.5 MB). Peak memory consumption was 67.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:06,389 INFO L168 Benchmark]: BuchiAutomizer took 37305.66 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.0 MB). Free memory was 987.3 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 398.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:06,393 INFO L168 Benchmark]: Witness Printer took 65.09 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:32:06,398 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 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 614.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -103.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.40 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.84 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 1024.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 987.3 MB in the end (delta: 67.5 MB). Peak memory consumption was 67.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37305.66 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.0 MB). Free memory was 987.3 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 398.6 MB. Max. memory is 11.5 GB. * Witness Printer took 65.09 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 203 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 36.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 638 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 203 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1024 SDtfs, 1677 SDslu, 1179 SDs, 0 SdLazy, 189 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 558]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8453} State at position 1 is {NULL=0, NULL=0, NULL=8456, NULL=0, NULL=8453, NULL=23677, retValue_acc=0, NULL=0, NULL=0, NULL=29044, NULL=23676, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11bce03f=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c267f1f=0, NULL=15313, tmp___0=0, NULL=0, NULL=0, NULL=29046, retValue_acc=0, tmp=0, NULL=15314, NULL=0, NULL=8454, tmp___1=0, NULL=23688, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10ca19e3=0, NULL=23685, NULL=0, NULL=0, NULL=0, NULL=0, cleanupTimeShifts=4, NULL=23691, NULL=29045, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d9d3c1e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@578543fa=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33028768=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62b7e2dc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=29043, NULL=23679, \result=0, retValue_acc=0, NULL=0, NULL=23686, NULL=0, NULL=23683, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=23689, retValue_acc=1, NULL=0, NULL=0, NULL=0, \result=1, tmp___0=0, NULL=23684, NULL=8455, NULL=0, NULL=0, retValue_acc=1, tmp___0=0, tmp___2=57, tmp=1, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69e971e3=0, methAndRunningLastTime=0, \result=0, NULL=23690, NULL=23678, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41ab1835=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10283448=0, NULL=8457, tmp=0, head=0, NULL=23687, NULL=29042, NULL=0, tmp=0, NULL=23682} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L189] int cleanupTimeShifts = 4; [L292] int methAndRunningLastTime ; [L333] int pumpRunning = 0; [L334] int systemActive = 1; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L267] int retValue_acc ; [L268] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L274] tmp = valid_product() [L276] COND TRUE \read(tmp) [L297] methAndRunningLastTime = 0 [L549] int splverifierCounter ; [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L553] int tmp___2 ; [L556] splverifierCounter = 0 Loop: [L558] COND TRUE 1 [L560] COND TRUE splverifierCounter < 4 [L566] tmp = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp)) [L576] tmp___0 = __VERIFIER_nondet_int() [L578] COND FALSE !(\read(tmp___0)) [L586] tmp___2 = __VERIFIER_nondet_int() [L588] COND TRUE \read(tmp___2) [L340] COND FALSE !(\read(pumpRunning)) [L347] COND TRUE \read(systemActive) [L395] int tmp ; [L398] COND FALSE !(\read(pumpRunning)) [L369] int tmp ; [L372] COND TRUE ! pumpRunning [L510] int retValue_acc ; [L511] int tmp ; [L512] int tmp___0 ; [L166] int retValue_acc ; [L169] COND TRUE waterLevel < 2 [L170] retValue_acc = 1 [L171] return (retValue_acc); [L516] tmp = isHighWaterSensorDry() [L518] COND TRUE \read(tmp) [L519] tmp___0 = 0 [L523] retValue_acc = tmp___0 [L524] return (retValue_acc); [L374] tmp = isHighWaterLevel() [L376] COND FALSE !(\read(tmp)) [L302] int tmp ; [L303] int tmp___0 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L307] tmp = isMethaneLevelCritical() [L309] COND FALSE !(\read(tmp)) [L325] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...