./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product12.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_spec5_product12.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 9343b88a4e8cc40a93847bba5f39d0e11192791f ............................................................................................................................................................................................................................................................................................................................................................................. 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 21:12:20,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:12:20,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:12:20,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:12:20,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:12:20,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:12:20,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:12:20,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:12:20,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:12:20,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:12:20,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:12:20,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:12:20,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:12:20,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:12:20,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:12:20,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:12:20,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:12:20,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:12:20,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:12:20,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:12:20,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:12:20,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:12:20,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:12:20,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:12:20,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:12:20,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:12:20,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:12:20,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:12:20,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:12:20,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:12:20,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:12:20,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:12:20,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:12:20,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:12:20,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:12:20,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:12:20,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:12:20,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:12:20,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:12:20,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:12:20,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:12:21,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:12:21,025 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:12:21,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:12:21,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:12:21,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:12:21,029 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:12:21,029 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:12:21,029 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:12:21,030 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:12:21,030 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:12:21,030 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:12:21,031 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:12:21,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:12:21,032 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:12:21,032 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:12:21,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:12:21,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:12:21,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:12:21,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:12:21,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:12:21,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:12:21,034 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:12:21,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:12:21,035 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:12:21,035 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:12:21,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:12:21,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:12:21,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:12:21,036 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:12:21,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:12:21,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:12:21,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:12:21,038 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:12:21,039 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:12:21,039 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 -> 9343b88a4e8cc40a93847bba5f39d0e11192791f [2019-11-28 21:12:21,386 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:12:21,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:12:21,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:12:21,402 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:12:21,403 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:12:21,403 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c [2019-11-28 21:12:21,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc999423/4bcc68b6d3724758a3608699830e7fc7/FLAG47da98bd0 [2019-11-28 21:12:21,969 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:12:21,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c [2019-11-28 21:12:21,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc999423/4bcc68b6d3724758a3608699830e7fc7/FLAG47da98bd0 [2019-11-28 21:12:22,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc999423/4bcc68b6d3724758a3608699830e7fc7 [2019-11-28 21:12:22,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:12:22,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:12:22,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:22,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:12:22,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:12:22,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:22,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3f5df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22, skipping insertion in model container [2019-11-28 21:12:22,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:22,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:12:22,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:12:22,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:22,787 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:12:22,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:22,901 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:12:22,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22 WrapperNode [2019-11-28 21:12:22,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:22,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:22,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:12:22,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:12:22,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:22,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:22,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:22,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:12:22,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:12:22,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:12:22,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:22,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:22,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:22,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:22,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:23,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:23,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (1/1) ... [2019-11-28 21:12:23,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:12:23,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:12:23,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:12:23,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:12:23,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (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 21:12:23,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:12:23,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:12:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:12:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:12:23,759 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:12:23,760 INFO L287 CfgBuilder]: Removed 86 assume(true) statements. [2019-11-28 21:12:23,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:23 BoogieIcfgContainer [2019-11-28 21:12:23,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:12:23,762 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:12:23,762 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:12:23,766 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:12:23,767 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:23,767 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:12:22" (1/3) ... [2019-11-28 21:12:23,768 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b83f862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:23, skipping insertion in model container [2019-11-28 21:12:23,769 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:23,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:22" (2/3) ... [2019-11-28 21:12:23,769 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b83f862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:23, skipping insertion in model container [2019-11-28 21:12:23,769 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:23,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:23" (3/3) ... [2019-11-28 21:12:23,771 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product12.cil.c [2019-11-28 21:12:23,822 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:12:23,822 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:12:23,822 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:12:23,823 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:12:23,824 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:12:23,824 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:12:23,824 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:12:23,824 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:12:23,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states. [2019-11-28 21:12:23,871 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2019-11-28 21:12:23,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:23,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:23,880 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:23,880 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:23,880 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:12:23,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states. [2019-11-28 21:12:23,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2019-11-28 21:12:23,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:23,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:23,887 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:23,887 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:23,893 INFO L794 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(77, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(101, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(116, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(104, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string26.base, #t~string26.offset, 1);call write~init~int(82, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(73, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(84, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 4 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(75, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~4, main_~tmp~3;havoc main_~retValue_acc~4;havoc main_~tmp~3; 56#L901true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 60#L909true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 50#L499true assume 0 != main_~tmp~3; 19#L472true ~switchedOnBeforeTS~0 := 0; 42#L49true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 17#L70-1true [2019-11-28 21:12:23,894 INFO L796 eck$LassoCheckResult]: Loop: 17#L70-1true assume !false; 67#L346true assume test_~splverifierCounter~0 < 4; 14#L347true test_~tmp~2 := test_#t~nondet31;havoc test_#t~nondet31; 18#L355true assume !(0 != test_~tmp~2); 23#L355-1true test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 3#L365true assume !(0 != test_~tmp___0~1); 4#L365-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 62#L375true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 65#L383-1true havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 43#L188true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 20#L59true assume !(0 != ~pumpRunning~0); 38#L111true assume 0 != ~systemActive~0; 51#L118true havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 8#L329true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 21#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 17#L70-1true [2019-11-28 21:12:23,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:23,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:12:23,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:23,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686185817] [2019-11-28 21:12:23,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:24,273 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:24,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:24,274 INFO L82 PathProgramCache]: Analyzing trace with hash 674243929, now seen corresponding path program 1 times [2019-11-28 21:12:24,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:24,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764310176] [2019-11-28 21:12:24,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:24,303 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:24,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:24,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1686698157, now seen corresponding path program 1 times [2019-11-28 21:12:24,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:24,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746105753] [2019-11-28 21:12:24,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:12:24,507 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 21:12:24,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746105753] [2019-11-28 21:12:24,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:12:24,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:12:24,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618065680] [2019-11-28 21:12:24,620 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-11-28 21:12:24,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:12:24,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:12:24,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:12:24,694 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 5 states. [2019-11-28 21:12:24,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:12:24,874 INFO L93 Difference]: Finished difference Result 170 states and 230 transitions. [2019-11-28 21:12:24,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:12:24,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 230 transitions. [2019-11-28 21:12:24,884 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 75 [2019-11-28 21:12:24,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 152 states and 212 transitions. [2019-11-28 21:12:24,892 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2019-11-28 21:12:24,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2019-11-28 21:12:24,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 212 transitions. [2019-11-28 21:12:24,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:12:24,895 INFO L688 BuchiCegarLoop]: Abstraction has 152 states and 212 transitions. [2019-11-28 21:12:24,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 212 transitions. [2019-11-28 21:12:24,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 109. [2019-11-28 21:12:24,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-28 21:12:24,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 148 transitions. [2019-11-28 21:12:24,954 INFO L711 BuchiCegarLoop]: Abstraction has 109 states and 148 transitions. [2019-11-28 21:12:24,954 INFO L591 BuchiCegarLoop]: Abstraction has 109 states and 148 transitions. [2019-11-28 21:12:24,954 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:12:24,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 148 transitions. [2019-11-28 21:12:24,964 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 75 [2019-11-28 21:12:24,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:24,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:24,966 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:24,966 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:24,966 INFO L794 eck$LassoCheckResult]: Stem: 307#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(77, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(101, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(116, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(104, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string26.base, #t~string26.offset, 1);call write~init~int(82, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(73, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(84, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 4 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(75, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 263#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~4, main_~tmp~3;havoc main_~retValue_acc~4;havoc main_~tmp~3; 264#L901 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 328#L909 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 325#L499 assume 0 != main_~tmp~3; 283#L472 ~switchedOnBeforeTS~0 := 0; 284#L49 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 278#L70-1 [2019-11-28 21:12:24,967 INFO L796 eck$LassoCheckResult]: Loop: 278#L70-1 assume !false; 279#L346 assume test_~splverifierCounter~0 < 4; 273#L347 test_~tmp~2 := test_#t~nondet31;havoc test_#t~nondet31; 274#L355 assume !(0 != test_~tmp~2); 293#L355-1 test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 254#L365 assume !(0 != test_~tmp___0~1); 256#L365-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 257#L375 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 262#L383-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 320#L188 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 285#L59 assume !(0 != ~pumpRunning~0); 286#L111 assume 0 != ~systemActive~0; 351#L118 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 350#L329 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 288#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 289#L188-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 322#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 278#L70-1 [2019-11-28 21:12:24,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:24,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:12:24,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:24,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093881932] [2019-11-28 21:12:24,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:25,091 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:25,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:25,094 INFO L82 PathProgramCache]: Analyzing trace with hash -591660588, now seen corresponding path program 1 times [2019-11-28 21:12:25,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:25,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139150489] [2019-11-28 21:12:25,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:25,120 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:25,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1714272946, now seen corresponding path program 1 times [2019-11-28 21:12:25,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:25,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119595283] [2019-11-28 21:12:25,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:25,223 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:25,346 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-11-28 21:12:52,505 WARN L192 SmtUtils]: Spent 27.09 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:13:06,016 WARN L192 SmtUtils]: Spent 13.50 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:13:06,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:13:06 BoogieIcfgContainer [2019-11-28 21:13:06,113 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:13:06,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:13:06,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:13:06,114 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:13:06,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:23" (3/4) ... [2019-11-28 21:13:06,118 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:13:06,202 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:13:06,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:13:06,205 INFO L168 Benchmark]: Toolchain (without parser) took 43949.56 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 282.1 MB). Free memory was 957.7 MB in the beginning and 795.4 MB in the end (delta: 162.3 MB). Peak memory consumption was 444.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:06,206 INFO L168 Benchmark]: CDTParser took 0.27 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 21:13:06,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -111.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:06,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:06,209 INFO L168 Benchmark]: Boogie Preprocessor took 43.85 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 21:13:06,210 INFO L168 Benchmark]: RCFGBuilder took 746.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:06,211 INFO L168 Benchmark]: BuchiAutomizer took 42351.52 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 188.7 MB). Free memory was 1.0 GB in the beginning and 795.4 MB in the end (delta: 215.4 MB). Peak memory consumption was 412.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:06,213 INFO L168 Benchmark]: Witness Printer took 88.20 ms. Allocated memory is still 1.3 GB. Free memory is still 795.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:13:06,220 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 645.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -111.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.85 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 746.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42351.52 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 188.7 MB). Free memory was 1.0 GB in the beginning and 795.4 MB in the end (delta: 215.4 MB). Peak memory consumption was 412.2 MB. Max. memory is 11.5 GB. * Witness Printer took 88.20 ms. Allocated memory is still 1.3 GB. Free memory is still 795.4 MB. 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 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 5 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 41.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 43 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 132 SDtfs, 239 SDslu, 247 SDs, 0 SdLazy, 67 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 345]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3867} State at position 1 is {NULL=0, NULL=0, NULL=3877, NULL=3876, NULL=0, NULL=3867, retValue_acc=0, NULL=3886, NULL=3881, NULL=3868, methaneLevelCritical=0, NULL=3887, tmp=0, NULL=0, NULL=0, NULL=0, NULL=5157, NULL=0, tmp___1=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@149f5645=0, NULL=0, NULL=0, NULL=3884, NULL=3874, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=3873, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@390ef7e0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42ebb15e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51c4a841=57, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=3889, NULL=0, NULL=3870, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, tmp___0=0, \result=1, NULL=5155, head=0, pumpRunning=0, NULL=3882, \result=0, tmp=1, NULL=5156, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ad3480c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18e6a4d1=0, NULL=3871, retValue_acc=1, NULL=3879, tmp___2=57, NULL=3878, tmp___0=0, NULL=3875, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60c57181=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@772623b=0, NULL=3885, NULL=3888, head=0, retValue_acc=0, NULL=0, NULL=0, NULL=3880, NULL=0, NULL=0, NULL=3890, NULL=0, NULL=3869, NULL=3872} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int switchedOnBeforeTS ; [L101] int pumpRunning = 0; [L102] int systemActive = 1; [L254] int waterLevel = 1; [L255] int methaneLevelCritical = 0; [L413] int cleanupTimeShifts = 4; [L682] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int retValue_acc ; [L491] int tmp ; [L905] int retValue_acc ; [L908] retValue_acc = 1 [L909] return (retValue_acc); [L497] tmp = valid_product() [L499] COND TRUE \read(tmp) [L48] switchedOnBeforeTS = 0 [L336] int splverifierCounter ; [L337] int tmp ; [L338] int tmp___0 ; [L339] int tmp___1 ; [L340] int tmp___2 ; [L343] splverifierCounter = 0 Loop: [L345] COND TRUE 1 [L347] COND TRUE splverifierCounter < 4 [L353] tmp = __VERIFIER_nondet_int() [L355] COND FALSE !(\read(tmp)) [L363] tmp___0 = __VERIFIER_nondet_int() [L365] COND FALSE !(\read(tmp___0)) [L373] tmp___2 = __VERIFIER_nondet_int() [L375] COND TRUE \read(tmp___2) [L247] systemActive = 1 [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L57] switchedOnBeforeTS = isPumpRunning() [L111] COND FALSE !(\read(pumpRunning)) [L118] COND TRUE \read(systemActive) [L63] int tmp ; [L64] int tmp___0 ; [L325] int retValue_acc ; [L328] retValue_acc = waterLevel [L329] return (retValue_acc); [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L72] tmp___0 = isPumpRunning() [L74] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...