./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c 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_spec4_product25.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 afe8b3bf03d083ac2d9d1286cdd6625d4aa7e568 ................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-11-28 21:09:16,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:09:16,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:09:16,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:09:16,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:09:16,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:09:16,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:09:16,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:09:16,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:09:16,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:09:16,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:09:16,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:09:16,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:09:16,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:09:16,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:09:16,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:09:16,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:09:16,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:09:16,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:09:16,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:09:16,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:09:16,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:09:16,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:09:16,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:09:16,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:09:16,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:09:16,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:09:16,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:09:16,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:09:16,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:09:16,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:09:16,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:09:16,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:09:16,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:09:16,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:09:16,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:09:16,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:09:16,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:09:16,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:09:16,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:09:16,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:09:16,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:09:17,038 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:09:17,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:09:17,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:09:17,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:09:17,043 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:09:17,043 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:09:17,045 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:09:17,045 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:09:17,045 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:09:17,046 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:09:17,046 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:09:17,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:09:17,047 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:09:17,047 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:09:17,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:09:17,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:09:17,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:09:17,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:09:17,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:09:17,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:09:17,050 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:09:17,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:09:17,050 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:09:17,051 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:09:17,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:09:17,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:09:17,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:09:17,052 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:09:17,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:09:17,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:09:17,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:09:17,054 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:09:17,055 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:09:17,056 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 -> afe8b3bf03d083ac2d9d1286cdd6625d4aa7e568 [2019-11-28 21:09:17,350 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:09:17,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:09:17,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:09:17,368 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:09:17,369 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:09:17,370 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2019-11-28 21:09:17,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/580291f08/904790a7608543f1b992d8d2aa2b4ada/FLAGf13d7ff00 [2019-11-28 21:09:17,914 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:09:17,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2019-11-28 21:09:17,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/580291f08/904790a7608543f1b992d8d2aa2b4ada/FLAGf13d7ff00 [2019-11-28 21:09:18,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/580291f08/904790a7608543f1b992d8d2aa2b4ada [2019-11-28 21:09:18,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:09:18,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:09:18,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:09:18,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:09:18,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:09:18,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:18,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672d8e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18, skipping insertion in model container [2019-11-28 21:09:18,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:18,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:09:18,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:09:18,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:09:18,775 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:09:18,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:09:18,897 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:09:18,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18 WrapperNode [2019-11-28 21:09:18,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:09:18,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:09:18,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:09:18,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:09:18,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:18,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:18,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:09:18,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:09:18,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:09:18,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:09:18,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:18,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:18,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:18,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:19,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:19,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:19,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (1/1) ... [2019-11-28 21:09:19,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:09:19,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:09:19,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:09:19,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:09:19,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (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 21:09:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:09:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:09:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:09:19,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:09:19,786 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:09:19,787 INFO L287 CfgBuilder]: Removed 96 assume(true) statements. [2019-11-28 21:09:19,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:09:19 BoogieIcfgContainer [2019-11-28 21:09:19,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:09:19,789 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:09:19,789 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:09:19,793 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:09:19,793 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:09:19,794 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:09:18" (1/3) ... [2019-11-28 21:09:19,795 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38d06c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:09:19, skipping insertion in model container [2019-11-28 21:09:19,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:09:19,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:18" (2/3) ... [2019-11-28 21:09:19,796 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38d06c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:09:19, skipping insertion in model container [2019-11-28 21:09:19,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:09:19,796 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:09:19" (3/3) ... [2019-11-28 21:09:19,799 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2019-11-28 21:09:19,843 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:09:19,844 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:09:19,844 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:09:19,844 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:09:19,844 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:09:19,844 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:09:19,845 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:09:19,845 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:09:19,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-28 21:09:19,883 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:09:19,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:19,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:19,891 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:19,891 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:19,891 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:09:19,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-28 21:09:19,897 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:09:19,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:19,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:19,898 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:19,899 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:19,905 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 7#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 27#L322true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 50#L330true main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 3#L899true assume 0 != main_~tmp~8; 59#L876true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 28#L344-1true [2019-11-28 21:09:19,905 INFO L796 eck$LassoCheckResult]: Loop: 28#L344-1true assume !false; 67#L64true assume test_~splverifierCounter~0 < 4; 13#L65true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 6#L73true assume !(0 != test_~tmp~0); 5#L73-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 61#L83true assume !(0 != test_~tmp___0~0); 60#L83-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 48#L93true assume 0 != test_~tmp___2~0; 38#L99-2true assume !(0 != ~pumpRunning~0); 58#L134true assume !(0 != ~systemActive~0); 71#L141true havoc __utac_acc__Specification4_spec__1_#t~ret25, __utac_acc__Specification4_spec__1_#t~ret26, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 63#L437true __utac_acc__Specification4_spec__1_#t~ret25 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret25;havoc __utac_acc__Specification4_spec__1_#t~ret25; 25#L344true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 28#L344-1true [2019-11-28 21:09:19,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:19,912 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:09:19,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:19,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727334208] [2019-11-28 21:09:19,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:20,261 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:20,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:20,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1681683774, now seen corresponding path program 1 times [2019-11-28 21:09:20,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:20,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854943542] [2019-11-28 21:09:20,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:20,281 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:20,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:20,283 INFO L82 PathProgramCache]: Analyzing trace with hash 32595164, now seen corresponding path program 1 times [2019-11-28 21:09:20,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:20,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283700250] [2019-11-28 21:09:20,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:09:20,430 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 21:09:20,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283700250] [2019-11-28 21:09:20,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:09:20,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:09:20,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477325914] [2019-11-28 21:09:20,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:09:20,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:09:20,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:09:20,546 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 6 states. [2019-11-28 21:09:20,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:09:20,720 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2019-11-28 21:09:20,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:09:20,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2019-11-28 21:09:20,727 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-28 21:09:20,732 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2019-11-28 21:09:20,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2019-11-28 21:09:20,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2019-11-28 21:09:20,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2019-11-28 21:09:20,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:09:20,735 INFO L688 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-11-28 21:09:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2019-11-28 21:09:20,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-11-28 21:09:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-28 21:09:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2019-11-28 21:09:20,769 INFO L711 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-11-28 21:09:20,769 INFO L591 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-11-28 21:09:20,769 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:09:20,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2019-11-28 21:09:20,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-28 21:09:20,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:20,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:20,772 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:20,772 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:20,772 INFO L794 eck$LassoCheckResult]: Stem: 202#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 171#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 172#L322 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 197#L330 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 162#L899 assume 0 != main_~tmp~8; 163#L876 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 195#L344-1 [2019-11-28 21:09:20,773 INFO L796 eck$LassoCheckResult]: Loop: 195#L344-1 assume !false; 199#L64 assume test_~splverifierCounter~0 < 4; 179#L65 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 166#L73 assume !(0 != test_~tmp~0); 164#L73-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 165#L83 assume !(0 != test_~tmp___0~0); 204#L83-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 214#L93 assume 0 != test_~tmp___2~0; 206#L99-2 assume !(0 != ~pumpRunning~0); 207#L134 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 212#L166 assume !(0 != ~pumpRunning~0); 213#L141 havoc __utac_acc__Specification4_spec__1_#t~ret25, __utac_acc__Specification4_spec__1_#t~ret26, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 224#L437 __utac_acc__Specification4_spec__1_#t~ret25 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret25;havoc __utac_acc__Specification4_spec__1_#t~ret25; 194#L344 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 195#L344-1 [2019-11-28 21:09:20,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:20,773 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:09:20,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:20,774 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026626168] [2019-11-28 21:09:20,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:20,906 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:20,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:20,907 INFO L82 PathProgramCache]: Analyzing trace with hash -619582373, now seen corresponding path program 1 times [2019-11-28 21:09:20,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:20,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810575775] [2019-11-28 21:09:20,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:20,920 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:20,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:20,920 INFO L82 PathProgramCache]: Analyzing trace with hash 983457153, now seen corresponding path program 1 times [2019-11-28 21:09:20,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:20,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932801672] [2019-11-28 21:09:20,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:21,048 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:48,613 WARN L192 SmtUtils]: Spent 27.47 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:10:02,019 WARN L192 SmtUtils]: Spent 13.40 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:10:02,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:10:02 BoogieIcfgContainer [2019-11-28 21:10:02,112 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:10:02,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:10:02,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:10:02,114 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:10:02,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:09:19" (3/4) ... [2019-11-28 21:10:02,118 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:10:02,216 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:10:02,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:10:02,220 INFO L168 Benchmark]: Toolchain (without parser) took 43950.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 309.9 MB). Free memory was 952.3 MB in the beginning and 1.3 GB in the end (delta: -304.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:02,221 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:10:02,224 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:02,226 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:02,226 INFO L168 Benchmark]: Boogie Preprocessor took 36.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:10:02,227 INFO L168 Benchmark]: RCFGBuilder took 765.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:02,228 INFO L168 Benchmark]: BuchiAutomizer took 42323.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -202.9 MB). Peak memory consumption was 362.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:02,228 INFO L168 Benchmark]: Witness Printer took 103.04 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:02,234 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 629.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 765.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42323.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -202.9 MB). Peak memory consumption was 362.9 MB. Max. memory is 11.5 GB. * Witness Printer took 103.04 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 41.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 283 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 63]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=93} State at position 1 is {NULL=0, NULL=0, NULL=3028, NULL=3026, NULL=93, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4496138d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ece1d5a=57, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@699bdad6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21777621=0, NULL=106, NULL=108, methaneLevelCritical=0, NULL=103, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3030, NULL=0, tmp___1=0, NULL=0, NULL=99, NULL=3024, NULL=105, cleanupTimeShifts=4, tmp=0, NULL=98, NULL=3029, tmp___0=0, NULL=0, systemActive=1, waterLevel=1, NULL=97, \result=1, NULL=0, NULL=0, NULL=0, NULL=111, NULL=0, NULL=3027, NULL=0, tmp___0=0, NULL=112, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=1, NULL=100, head=0, pumpRunning=0, NULL=3023, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17f8fe5d=0, NULL=0, NULL=102, NULL=0, tmp=1, NULL=0, NULL=0, retValue_acc=1, NULL=104, NULL=107, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@365eb503=0, tmp=1, retValue_acc=1, tmp___2=57, NULL=3025, splverifierCounter=0, NULL=0, NULL=110, tmp=0, head=0, NULL=0, NULL=0, NULL=109, NULL=101, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64c36348=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b6a4773=0, NULL=3031} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L126] int pumpRunning = 0; [L127] int systemActive = 1; [L362] int waterLevel = 1; [L363] int methaneLevelCritical = 0; [L620] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L817] int cleanupTimeShifts = 4; [L890] int retValue_acc ; [L891] int tmp ; [L326] int retValue_acc ; [L329] retValue_acc = 1 [L330] return (retValue_acc); [L897] tmp = valid_product() [L899] COND TRUE \read(tmp) [L54] int splverifierCounter ; [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L58] int tmp___2 ; [L61] splverifierCounter = 0 Loop: [L63] COND TRUE 1 [L65] COND TRUE splverifierCounter < 4 [L71] tmp = __VERIFIER_nondet_int() [L73] COND FALSE !(\read(tmp)) [L81] tmp___0 = __VERIFIER_nondet_int() [L83] COND FALSE !(\read(tmp___0)) [L91] tmp___2 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___2) [L134] COND FALSE !(\read(pumpRunning)) [L141] COND TRUE \read(systemActive) [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L337] int tmp ; [L338] int tmp___0 ; [L433] int retValue_acc ; [L436] retValue_acc = waterLevel [L437] return (retValue_acc); [L342] tmp = getWaterLevel() [L344] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...