./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product40.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 ad65d1d3307a121fce5b7d95113e2f3f66b04b5a ............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:26:35,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:26:35,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:26:35,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:26:35,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:26:35,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:26:35,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:26:35,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:26:35,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:26:35,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:26:35,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:26:35,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:26:35,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:26:35,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:26:35,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:26:35,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:26:35,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:26:35,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:26:35,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:26:35,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:26:35,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:26:35,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:26:35,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:26:35,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:26:35,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:26:35,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:26:35,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:26:35,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:26:35,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:26:35,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:26:35,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:26:35,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:26:35,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:26:35,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:26:35,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:26:35,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:26:35,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:26:35,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:26:35,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:26:35,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:26:35,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:26:35,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:26:35,892 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:26:35,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:26:35,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:26:35,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:26:35,895 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:26:35,895 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:26:35,895 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:26:35,896 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:26:35,896 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:26:35,896 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:26:35,897 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:26:35,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:26:35,897 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:26:35,898 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:26:35,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:26:35,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:26:35,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:26:35,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:26:35,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:26:35,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:26:35,900 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:26:35,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:26:35,900 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:26:35,900 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:26:35,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:26:35,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:26:35,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:26:35,902 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:26:35,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:26:35,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:26:35,903 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:26:35,904 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:26:35,904 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 -> ad65d1d3307a121fce5b7d95113e2f3f66b04b5a [2019-11-28 03:26:36,253 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:26:36,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:26:36,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:26:36,274 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:26:36,274 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:26:36,275 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-11-28 03:26:36,349 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe4d206ac/a0dbfcc236b64041ab859cf6edbdec2a/FLAG84f5b5586 [2019-11-28 03:26:36,821 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:26:36,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-11-28 03:26:36,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe4d206ac/a0dbfcc236b64041ab859cf6edbdec2a/FLAG84f5b5586 [2019-11-28 03:26:37,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe4d206ac/a0dbfcc236b64041ab859cf6edbdec2a [2019-11-28 03:26:37,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:26:37,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:26:37,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:26:37,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:26:37,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:26:37,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6822e6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37, skipping insertion in model container [2019-11-28 03:26:37,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:26:37,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:26:37,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:26:37,724 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:26:37,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:26:37,856 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:26:37,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37 WrapperNode [2019-11-28 03:26:37,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:26:37,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:26:37,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:26:37,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:26:37,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:26:37,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:26:37,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:26:37,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:26:37,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... [2019-11-28 03:26:37,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:26:37,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:26:37,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:26:37,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:26:37,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:26:38,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:26:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:26:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:26:38,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:26:38,922 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:26:38,924 INFO L297 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-28 03:26:38,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:38 BoogieIcfgContainer [2019-11-28 03:26:38,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:26:38,929 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:26:38,930 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:26:38,933 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:26:38,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:26:38,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:26:37" (1/3) ... [2019-11-28 03:26:38,936 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b879903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:26:38, skipping insertion in model container [2019-11-28 03:26:38,936 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:26:38,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:37" (2/3) ... [2019-11-28 03:26:38,938 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b879903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:26:38, skipping insertion in model container [2019-11-28 03:26:38,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:26:38,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:38" (3/3) ... [2019-11-28 03:26:38,941 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2019-11-28 03:26:38,987 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:26:38,987 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:26:38,988 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:26:38,988 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:26:38,988 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:26:38,988 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:26:38,988 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:26:38,989 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:26:39,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-28 03:26:39,037 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 03:26:39,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:26:39,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:26:39,047 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:26:39,047 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:26:39,047 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:26:39,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-28 03:26:39,055 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 03:26:39,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:26:39,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:26:39,057 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:26:39,057 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:26:39,063 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 81#L473true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 99#L481true main_#t~ret26 := valid_product_#res;main_~tmp~5 := main_#t~ret26;havoc main_#t~ret26; 103#L437true assume 0 != main_~tmp~5; 45#L411true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 34#L334-1true [2019-11-28 03:26:39,064 INFO L796 eck$LassoCheckResult]: Loop: 34#L334-1true assume !false; 74#L267true assume test_~splverifierCounter~0 < 4; 43#L268true test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 42#L276true assume !(0 != test_~tmp~3); 40#L276-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 69#L286true assume !(0 != test_~tmp___0~1); 68#L286-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 8#L296true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 29#L304-1true assume !(0 != ~pumpRunning~0); 18#L59true assume !(0 != ~systemActive~0); 77#L66true havoc __utac_acc__Specification1_spec__1_#t~ret24, __utac_acc__Specification1_spec__1_#t~ret25, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 90#L905-1true __utac_acc__Specification1_spec__1_#t~ret24 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret24;havoc __utac_acc__Specification1_spec__1_#t~ret24; 33#L334true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 34#L334-1true [2019-11-28 03:26:39,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:26:39,072 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 03:26:39,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:26:39,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923411096] [2019-11-28 03:26:39,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:26:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:39,481 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:26:39,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:26:39,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1670447604, now seen corresponding path program 1 times [2019-11-28 03:26:39,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:26:39,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071184755] [2019-11-28 03:26:39,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:26:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:26:39,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:26:39,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071184755] [2019-11-28 03:26:39,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:26:39,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:26:39,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518243842] [2019-11-28 03:26:39,546 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:26:39,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:26:39,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:26:39,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:26:39,562 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2019-11-28 03:26:39,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:26:39,669 INFO L93 Difference]: Finished difference Result 214 states and 312 transitions. [2019-11-28 03:26:39,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:26:39,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 312 transitions. [2019-11-28 03:26:39,683 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 138 [2019-11-28 03:26:39,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 200 states and 297 transitions. [2019-11-28 03:26:39,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2019-11-28 03:26:39,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2019-11-28 03:26:39,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 297 transitions. [2019-11-28 03:26:39,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:26:39,699 INFO L688 BuchiCegarLoop]: Abstraction has 200 states and 297 transitions. [2019-11-28 03:26:39,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 297 transitions. [2019-11-28 03:26:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2019-11-28 03:26:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-11-28 03:26:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 294 transitions. [2019-11-28 03:26:39,748 INFO L711 BuchiCegarLoop]: Abstraction has 198 states and 294 transitions. [2019-11-28 03:26:39,749 INFO L591 BuchiCegarLoop]: Abstraction has 198 states and 294 transitions. [2019-11-28 03:26:39,749 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:26:39,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 294 transitions. [2019-11-28 03:26:39,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 136 [2019-11-28 03:26:39,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:26:39,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:26:39,754 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:26:39,754 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:26:39,755 INFO L794 eck$LassoCheckResult]: Stem: 433#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 352#L-1 havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 353#L473 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 443#L481 main_#t~ret26 := valid_product_#res;main_~tmp~5 := main_#t~ret26;havoc main_#t~ret26; 460#L437 assume 0 != main_~tmp~5; 409#L411 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 387#L334-1 [2019-11-28 03:26:39,755 INFO L796 eck$LassoCheckResult]: Loop: 387#L334-1 assume !false; 390#L267 assume test_~splverifierCounter~0 < 4; 406#L268 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 404#L276 assume !(0 != test_~tmp~3); 399#L276-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 400#L286 assume !(0 != test_~tmp___0~1); 426#L286-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 341#L296 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 342#L304-1 assume !(0 != ~pumpRunning~0); 363#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 364#L117 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 371#L91-1 assume !(0 == ~pumpRunning~0); 348#L66 havoc __utac_acc__Specification1_spec__1_#t~ret24, __utac_acc__Specification1_spec__1_#t~ret25, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 453#L905-1 __utac_acc__Specification1_spec__1_#t~ret24 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret24;havoc __utac_acc__Specification1_spec__1_#t~ret24; 386#L334 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 387#L334-1 [2019-11-28 03:26:39,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:26:39,756 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 03:26:39,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:26:39,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969418344] [2019-11-28 03:26:39,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:26:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:39,884 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:26:39,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:26:39,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1422660381, now seen corresponding path program 1 times [2019-11-28 03:26:39,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:26:39,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253014319] [2019-11-28 03:26:39,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:26:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:26:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:26:39,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253014319] [2019-11-28 03:26:39,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:26:39,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:26:39,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997918789] [2019-11-28 03:26:39,903 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:26:39,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:26:39,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:26:39,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:26:39,905 INFO L87 Difference]: Start difference. First operand 198 states and 294 transitions. cyclomatic complexity: 99 Second operand 3 states. [2019-11-28 03:26:40,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:26:40,042 INFO L93 Difference]: Finished difference Result 281 states and 394 transitions. [2019-11-28 03:26:40,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:26:40,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 281 states and 394 transitions. [2019-11-28 03:26:40,047 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2019-11-28 03:26:40,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 281 states to 281 states and 394 transitions. [2019-11-28 03:26:40,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 281 [2019-11-28 03:26:40,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2019-11-28 03:26:40,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 394 transitions. [2019-11-28 03:26:40,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:26:40,055 INFO L688 BuchiCegarLoop]: Abstraction has 281 states and 394 transitions. [2019-11-28 03:26:40,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 394 transitions. [2019-11-28 03:26:40,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2019-11-28 03:26:40,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2019-11-28 03:26:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 394 transitions. [2019-11-28 03:26:40,075 INFO L711 BuchiCegarLoop]: Abstraction has 281 states and 394 transitions. [2019-11-28 03:26:40,075 INFO L591 BuchiCegarLoop]: Abstraction has 281 states and 394 transitions. [2019-11-28 03:26:40,075 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:26:40,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 281 states and 394 transitions. [2019-11-28 03:26:40,078 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2019-11-28 03:26:40,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:26:40,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:26:40,080 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:26:40,080 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:26:40,080 INFO L794 eck$LassoCheckResult]: Stem: 913#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 838#L-1 havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 839#L473 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 919#L481 main_#t~ret26 := valid_product_#res;main_~tmp~5 := main_#t~ret26;havoc main_#t~ret26; 935#L437 assume 0 != main_~tmp~5; 895#L411 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 872#L334-1 [2019-11-28 03:26:40,081 INFO L796 eck$LassoCheckResult]: Loop: 872#L334-1 assume !false; 875#L267 assume test_~splverifierCounter~0 < 4; 892#L268 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 890#L276 assume !(0 != test_~tmp~3); 886#L276-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 887#L286 assume !(0 != test_~tmp___0~1); 907#L286-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 828#L296 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 829#L304-1 assume !(0 != ~pumpRunning~0); 1001#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1000#L117 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 999#L91-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 998#L945-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 997#L950-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 994#L219-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 991#L219-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 988#L225-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 833#L95-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 835#L66 havoc __utac_acc__Specification1_spec__1_#t~ret24, __utac_acc__Specification1_spec__1_#t~ret25, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 917#L905-1 __utac_acc__Specification1_spec__1_#t~ret24 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret24;havoc __utac_acc__Specification1_spec__1_#t~ret24; 871#L334 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 872#L334-1 [2019-11-28 03:26:40,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:26:40,082 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 03:26:40,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:26:40,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288575689] [2019-11-28 03:26:40,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:26:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:40,169 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:26:40,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:26:40,170 INFO L82 PathProgramCache]: Analyzing trace with hash 287627951, now seen corresponding path program 1 times [2019-11-28 03:26:40,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:26:40,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030352629] [2019-11-28 03:26:40,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:26:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:40,188 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:26:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:26:40,189 INFO L82 PathProgramCache]: Analyzing trace with hash 743699145, now seen corresponding path program 1 times [2019-11-28 03:26:40,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:26:40,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697898777] [2019-11-28 03:26:40,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:26:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:26:40,321 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:26:40,474 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-28 03:27:10,176 WARN L192 SmtUtils]: Spent 29.62 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 03:27:25,324 WARN L192 SmtUtils]: Spent 15.14 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 03:27:25,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:27:25 BoogieIcfgContainer [2019-11-28 03:27:25,432 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:27:25,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:27:25,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:27:25,434 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:27:25,434 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:38" (3/4) ... [2019-11-28 03:27:25,438 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:27:25,524 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:27:25,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:27:25,526 INFO L168 Benchmark]: Toolchain (without parser) took 48394.64 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 299.4 MB). Free memory was 960.4 MB in the beginning and 1.3 GB in the end (delta: -292.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:25,526 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 03:27:25,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:25,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:25,530 INFO L168 Benchmark]: Boogie Preprocessor took 50.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:27:25,530 INFO L168 Benchmark]: RCFGBuilder took 940.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:25,532 INFO L168 Benchmark]: BuchiAutomizer took 46503.14 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -226.9 MB). Peak memory consumption was 391.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:25,533 INFO L168 Benchmark]: Witness Printer took 91.26 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:25,541 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 721.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 940.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46503.14 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -226.9 MB). Peak memory consumption was 391.0 MB. Max. memory is 11.5 GB. * Witness Printer took 91.26 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 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 3 locations. The remainder module has 281 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 45.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 281 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 306 SDtfs, 262 SDslu, 206 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 266]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9137} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=9138, NULL=9145, NULL=0, NULL=9137, NULL=11967, retValue_acc=0, NULL=0, NULL=9141, NULL=11965, NULL=9149, methaneLevelCritical=0, NULL=9142, tmp___0=0, tmp=0, NULL=0, retValue_acc=0, NULL=0, NULL=11968, tmp___1=0, tmp___0=0, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@113f1b0c=0, cleanupTimeShifts=4, NULL=9151, NULL=9143, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=11962, NULL=0, retValue_acc=0, NULL=0, NULL=9150, \result=0, NULL=0, NULL=11961, NULL=0, NULL=11966, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9139, \result=1, NULL=11960, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57678342=0, NULL=9144, NULL=9152, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44090231=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f5cde05=0, NULL=11963, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@203c5a5a=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@537e1a88=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fbd7892=57, retValue_acc=1, \result=1, NULL=9147, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b03a131=0, NULL=0, tmp=1, tmp___2=57, retValue_acc=1, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=9146, NULL=11964, NULL=9140, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52aedce7=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2baf6edf=0, NULL=9153, NULL=0, NULL=9148} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L352] int cleanupTimeShifts = 4; [L664] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L862] int waterLevel = 1; [L863] int methaneLevelCritical = 0; [L428] int retValue_acc ; [L429] int tmp ; [L477] int retValue_acc ; [L480] retValue_acc = 1 [L481] return (retValue_acc); [L435] tmp = valid_product() [L437] COND TRUE \read(tmp) [L257] int splverifierCounter ; [L258] int tmp ; [L259] int tmp___0 ; [L260] int tmp___1 ; [L261] int tmp___2 ; [L264] splverifierCounter = 0 Loop: [L266] COND TRUE 1 [L268] COND TRUE splverifierCounter < 4 [L274] tmp = __VERIFIER_nondet_int() [L276] COND FALSE !(\read(tmp)) [L284] tmp___0 = __VERIFIER_nondet_int() [L286] COND FALSE !(\read(tmp___0)) [L294] tmp___2 = __VERIFIER_nondet_int() [L296] COND TRUE \read(tmp___2) [L248] systemActive = 1 [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; [L91] COND TRUE ! pumpRunning [L211] int retValue_acc ; [L212] int tmp ; [L213] int tmp___0 ; [L942] int retValue_acc ; [L945] COND TRUE waterLevel < 2 [L946] retValue_acc = 1 [L947] return (retValue_acc); [L217] tmp = isHighWaterSensorDry() [L219] COND TRUE \read(tmp) [L220] tmp___0 = 0 [L224] retValue_acc = tmp___0 [L225] return (retValue_acc); [L93] tmp = isHighWaterLevel() [L95] COND FALSE !(\read(tmp)) [L327] int tmp ; [L328] int tmp___0 ; [L901] int retValue_acc ; [L904] retValue_acc = methaneLevelCritical [L905] return (retValue_acc); [L332] tmp = isMethaneLevelCritical() [L334] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...