./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product08.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_spec3_product08.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 7ed6f6fcca911d6d9d1e7f48bc21f435c586726c ........................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:04:43,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:04:43,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:04:43,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:04:43,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:04:43,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:04:43,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:04:43,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:04:43,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:04:43,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:04:43,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:04:43,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:04:43,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:04:43,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:04:43,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:04:43,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:04:43,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:04:43,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:04:43,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:04:43,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:04:43,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:04:43,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:04:43,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:04:43,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:04:43,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:04:43,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:04:43,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:04:43,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:04:43,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:04:43,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:04:43,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:04:43,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:04:43,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:04:43,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:04:43,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:04:43,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:04:43,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:04:43,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:04:43,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:04:43,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:04:43,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:04:43,877 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:04:43,895 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:04:43,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:04:43,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:04:43,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:04:43,899 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:04:43,900 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:04:43,900 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:04:43,901 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:04:43,901 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:04:43,901 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:04:43,902 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:04:43,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:04:43,903 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:04:43,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:04:43,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:04:43,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:04:43,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:04:43,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:04:43,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:04:43,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:04:43,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:04:43,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:04:43,906 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:04:43,907 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:04:43,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:04:43,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:04:43,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:04:43,908 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:04:43,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:04:43,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:04:43,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:04:43,910 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:04:43,911 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:04:43,913 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 -> 7ed6f6fcca911d6d9d1e7f48bc21f435c586726c [2019-11-28 21:04:44,307 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:04:44,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:04:44,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:04:44,326 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:04:44,326 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:04:44,327 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2019-11-28 21:04:44,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d24b896c7/9e9b7a1ce1134d268c45e0afa5f8428f/FLAG2dbef70bb [2019-11-28 21:04:44,875 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:04:44,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2019-11-28 21:04:44,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d24b896c7/9e9b7a1ce1134d268c45e0afa5f8428f/FLAG2dbef70bb [2019-11-28 21:04:45,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d24b896c7/9e9b7a1ce1134d268c45e0afa5f8428f [2019-11-28 21:04:45,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:04:45,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:04:45,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:04:45,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:04:45,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:04:45,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:45,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45, skipping insertion in model container [2019-11-28 21:04:45,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:45,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:04:45,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:04:45,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:04:45,820 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:04:45,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:04:45,990 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:04:45,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45 WrapperNode [2019-11-28 21:04:45,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:04:45,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:04:45,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:04:45,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:04:46,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:46,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:46,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:04:46,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:04:46,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:04:46,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:04:46,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:46,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:46,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:46,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:46,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:46,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:46,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (1/1) ... [2019-11-28 21:04:46,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:04:46,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:04:46,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:04:46,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:04:46,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (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 21:04:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:04:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:04:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:04:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:04:46,933 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:04:46,934 INFO L287 CfgBuilder]: Removed 108 assume(true) statements. [2019-11-28 21:04:46,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:04:46 BoogieIcfgContainer [2019-11-28 21:04:46,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:04:46,937 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:04:46,937 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:04:46,941 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:04:46,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:04:46,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:04:45" (1/3) ... [2019-11-28 21:04:46,944 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c357c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:04:46, skipping insertion in model container [2019-11-28 21:04:46,944 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:04:46,945 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:45" (2/3) ... [2019-11-28 21:04:46,946 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c357c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:04:46, skipping insertion in model container [2019-11-28 21:04:46,946 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:04:46,946 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:04:46" (3/3) ... [2019-11-28 21:04:46,949 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2019-11-28 21:04:47,003 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:04:47,004 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:04:47,004 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:04:47,005 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:04:47,005 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:04:47,005 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:04:47,005 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:04:47,006 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:04:47,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-28 21:04:47,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 21:04:47,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:47,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:47,080 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:04:47,080 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:47,080 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:04:47,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-28 21:04:47,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 21:04:47,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:47,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:47,099 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:04:47,099 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:47,115 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 41#L794true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 47#L802true main_#t~ret71 := valid_product_#res;main_~tmp~6 := main_#t~ret71;havoc main_#t~ret71; 18#L889true assume 0 != main_~tmp~6; 4#L866true havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 19#L59-1true [2019-11-28 21:04:47,116 INFO L796 eck$LassoCheckResult]: Loop: 19#L59-1true assume !false; 14#L552true assume test_~splverifierCounter~0 < 4; 30#L553true test_~tmp~4 := test_#t~nondet48;havoc test_#t~nondet48; 65#L561true assume !(0 != test_~tmp~4); 67#L561-1true test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; 39#L571true assume !(0 != test_~tmp___0~1); 42#L571-1true test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; 17#L581true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 25#L589-1true assume !(0 != ~pumpRunning~0); 71#L620true assume !(0 != ~systemActive~0); 60#L627true havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 55#L491-1true __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 75#L53true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 19#L59-1true [2019-11-28 21:04:47,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:47,124 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:04:47,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:47,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460195696] [2019-11-28 21:04:47,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:47,549 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:47,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:47,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1672356225, now seen corresponding path program 1 times [2019-11-28 21:04:47,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:47,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119352915] [2019-11-28 21:04:47,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:04:47,608 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 21:04:47,609 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119352915] [2019-11-28 21:04:47,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:04:47,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:04:47,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648710288] [2019-11-28 21:04:47,617 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:04:47,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:04:47,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:04:47,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:04:47,635 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2019-11-28 21:04:47,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:04:47,724 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2019-11-28 21:04:47,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:04:47,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2019-11-28 21:04:47,741 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2019-11-28 21:04:47,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2019-11-28 21:04:47,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2019-11-28 21:04:47,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2019-11-28 21:04:47,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2019-11-28 21:04:47,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:04:47,763 INFO L688 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2019-11-28 21:04:47,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2019-11-28 21:04:47,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2019-11-28 21:04:47,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-28 21:04:47,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2019-11-28 21:04:47,804 INFO L711 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2019-11-28 21:04:47,804 INFO L591 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2019-11-28 21:04:47,804 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:04:47,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2019-11-28 21:04:47,808 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2019-11-28 21:04:47,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:47,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:47,809 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:04:47,809 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:47,810 INFO L794 eck$LassoCheckResult]: Stem: 268#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 240#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 241#L794 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 279#L802 main_#t~ret71 := valid_product_#res;main_~tmp~6 := main_#t~ret71;havoc main_#t~ret71; 251#L889 assume 0 != main_~tmp~6; 227#L866 havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 228#L59-1 [2019-11-28 21:04:47,810 INFO L796 eck$LassoCheckResult]: Loop: 228#L59-1 assume !false; 331#L552 assume test_~splverifierCounter~0 < 4; 264#L553 test_~tmp~4 := test_#t~nondet48;havoc test_#t~nondet48; 265#L561 assume !(0 != test_~tmp~4); 296#L561-1 test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; 276#L571 assume !(0 != test_~tmp___0~1); 277#L571-1 test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; 248#L581 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 249#L589-1 assume !(0 != ~pumpRunning~0); 259#L620 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 286#L652 assume !(0 != ~pumpRunning~0); 288#L627 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 291#L491-1 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 292#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 228#L59-1 [2019-11-28 21:04:47,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:47,811 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:04:47,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:47,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772006261] [2019-11-28 21:04:47,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:47,935 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:47,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:47,936 INFO L82 PathProgramCache]: Analyzing trace with hash -323963314, now seen corresponding path program 1 times [2019-11-28 21:04:47,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:47,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422704543] [2019-11-28 21:04:47,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:47,967 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:47,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:47,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1279076212, now seen corresponding path program 1 times [2019-11-28 21:04:47,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:47,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572630783] [2019-11-28 21:04:47,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:04:48,153 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 21:04:48,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572630783] [2019-11-28 21:04:48,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:04:48,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:04:48,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574980852] [2019-11-28 21:04:48,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:04:48,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:04:48,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:04:48,286 INFO L87 Difference]: Start difference. First operand 126 states and 180 transitions. cyclomatic complexity: 57 Second operand 5 states. [2019-11-28 21:04:48,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:04:48,565 INFO L93 Difference]: Finished difference Result 410 states and 598 transitions. [2019-11-28 21:04:48,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:04:48,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 410 states and 598 transitions. [2019-11-28 21:04:48,572 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 302 [2019-11-28 21:04:48,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 410 states to 410 states and 598 transitions. [2019-11-28 21:04:48,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 410 [2019-11-28 21:04:48,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 410 [2019-11-28 21:04:48,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 410 states and 598 transitions. [2019-11-28 21:04:48,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:04:48,591 INFO L688 BuchiCegarLoop]: Abstraction has 410 states and 598 transitions. [2019-11-28 21:04:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states and 598 transitions. [2019-11-28 21:04:48,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 246. [2019-11-28 21:04:48,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-11-28 21:04:48,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 346 transitions. [2019-11-28 21:04:48,630 INFO L711 BuchiCegarLoop]: Abstraction has 246 states and 346 transitions. [2019-11-28 21:04:48,630 INFO L591 BuchiCegarLoop]: Abstraction has 246 states and 346 transitions. [2019-11-28 21:04:48,630 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:04:48,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 346 transitions. [2019-11-28 21:04:48,635 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 176 [2019-11-28 21:04:48,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:48,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:48,636 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:04:48,638 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:48,638 INFO L794 eck$LassoCheckResult]: Stem: 825#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 794#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 795#L794 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 838#L802 main_#t~ret71 := valid_product_#res;main_~tmp~6 := main_#t~ret71;havoc main_#t~ret71; 805#L889 assume 0 != main_~tmp~6; 781#L866 havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 782#L59-1 [2019-11-28 21:04:48,639 INFO L796 eck$LassoCheckResult]: Loop: 782#L59-1 assume !false; 799#L552 assume test_~splverifierCounter~0 < 4; 800#L553 test_~tmp~4 := test_#t~nondet48;havoc test_#t~nondet48; 822#L561 assume !(0 != test_~tmp~4); 865#L561-1 test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; 835#L571 assume !(0 != test_~tmp___0~1); 836#L571-1 test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; 802#L581 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 803#L589-1 assume !(0 != ~pumpRunning~0); 815#L620 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 848#L652 assume !(0 != ~pumpRunning~0); 850#L627 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 856#L491-1 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 857#L53 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 818#L523 __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 819#L59 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 782#L59-1 [2019-11-28 21:04:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:48,640 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:04:48,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:48,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922339894] [2019-11-28 21:04:48,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:48,769 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:48,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:48,770 INFO L82 PathProgramCache]: Analyzing trace with hash -2091093440, now seen corresponding path program 1 times [2019-11-28 21:04:48,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:48,771 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660846415] [2019-11-28 21:04:48,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:48,789 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:48,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:48,790 INFO L82 PathProgramCache]: Analyzing trace with hash 831599078, now seen corresponding path program 1 times [2019-11-28 21:04:48,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:48,791 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984969598] [2019-11-28 21:04:48,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:48,889 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:48,998 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-11-28 21:05:13,860 WARN L192 SmtUtils]: Spent 24.79 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:05:27,691 WARN L192 SmtUtils]: Spent 13.83 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:05:27,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:05:27 BoogieIcfgContainer [2019-11-28 21:05:27,766 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:05:27,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:05:27,766 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:05:27,767 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:05:27,767 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:04:46" (3/4) ... [2019-11-28 21:05:27,770 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:05:27,829 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:05:27,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:05:27,831 INFO L168 Benchmark]: Toolchain (without parser) took 42599.28 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 292.6 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -211.5 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:27,832 INFO L168 Benchmark]: CDTParser took 0.25 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 21:05:27,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:27,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:27,834 INFO L168 Benchmark]: Boogie Preprocessor took 39.00 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 21:05:27,835 INFO L168 Benchmark]: RCFGBuilder took 833.05 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: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:27,836 INFO L168 Benchmark]: BuchiAutomizer took 40828.87 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -153.6 MB). Peak memory consumption was 401.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:27,836 INFO L168 Benchmark]: Witness Printer took 63.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:27,840 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 758.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.00 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 833.05 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: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40828.87 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -153.6 MB). Peak memory consumption was 401.8 MB. Max. memory is 11.5 GB. * Witness Printer took 63.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 246 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 40.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 166 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 246 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 224 SDtfs, 432 SDslu, 448 SDs, 0 SdLazy, 89 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 551]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2508} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7030874c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e7ff592=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5051bc5e=0, NULL=0, NULL=2509, NULL=0, NULL=2508, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a645963=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36e9bbff=0, NULL=0, NULL=0, NULL=0, NULL=2519, NULL=0, retValue_acc=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79e33976=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42dd2e65=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ac0c949=0, NULL=0, tmp=0, NULL=0, NULL=2523, NULL=16588, NULL=0, tmp___1=0, NULL=2511, tmp___0=1, NULL=2510, tmp=0, cleanupTimeShifts=4, NULL=10222, NULL=2516, NULL=2521, NULL=2524, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=2518, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=2514, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=16590, \result=0, NULL=16593, NULL=0, NULL=0, NULL=0, tmp=1, NULL=2522, NULL=10224, NULL=16589, NULL=2512, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b7c3d75=0, tmp___2=53, retValue_acc=1, NULL=2520, tmp___0=0, NULL=2517, splverifierCounter=0, NULL=0, \result=0, NULL=16592, tmp___1=0, head=0, NULL=0, tmp=0, NULL=2513, NULL=0, NULL=10223, NULL=0, NULL=0, NULL=0, NULL=2515, NULL=16591} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 Loop: [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp)) [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND TRUE \read(tmp___2) [L764] systemActive = 1 [L620] COND FALSE !(\read(pumpRunning)) [L627] COND TRUE \read(systemActive) [L649] int tmp ; [L652] COND FALSE !(\read(pumpRunning)) [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] tmp___0 = getWaterLevel() [L59] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...