./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec2_product25_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: 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 /storage/repos/svcomp/c/product-lines/minepump_spec2_product25_true-unreach-call_false-termination.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 5c8fccd9aead26260fe6c28d5df9729813f96355 ..................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-28 23:56:17,016 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:56:17,018 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:56:17,031 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:56:17,031 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:56:17,032 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:56:17,034 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:56:17,037 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:56:17,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:56:17,040 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:56:17,041 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:56:17,041 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:56:17,043 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:56:17,044 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:56:17,045 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:56:17,046 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:56:17,047 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:56:17,050 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:56:17,052 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:56:17,054 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:56:17,055 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:56:17,057 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:56:17,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:56:17,060 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:56:17,060 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:56:17,061 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:56:17,063 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:56:17,064 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:56:17,064 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:56:17,071 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:56:17,071 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:56:17,072 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:56:17,072 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:56:17,072 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:56:17,074 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:56:17,075 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:56:17,075 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:56:17,109 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:56:17,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:56:17,112 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:56:17,113 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:56:17,113 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:56:17,114 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:56:17,114 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:56:17,114 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:56:17,114 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:56:17,114 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:56:17,114 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:56:17,116 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:56:17,117 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:56:17,117 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:56:17,117 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:56:17,117 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:56:17,117 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:56:17,118 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:56:17,120 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:56:17,120 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:56:17,120 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:56:17,120 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:56:17,121 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:56:17,121 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:56:17,122 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:56:17,122 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:56:17,122 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:56:17,122 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:56:17,123 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:56:17,123 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:56:17,123 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:56:17,125 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:56:17,126 INFO L133 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 -> 5c8fccd9aead26260fe6c28d5df9729813f96355 [2018-11-28 23:56:17,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:56:17,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:56:17,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:56:17,216 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:56:17,216 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:56:17,218 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec2_product25_true-unreach-call_false-termination.cil.c [2018-11-28 23:56:17,283 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6594577f5/614c6c9acf844ecf98f41eb4761d899b/FLAGd1c7b4490 [2018-11-28 23:56:17,837 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:56:17,839 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec2_product25_true-unreach-call_false-termination.cil.c [2018-11-28 23:56:17,853 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6594577f5/614c6c9acf844ecf98f41eb4761d899b/FLAGd1c7b4490 [2018-11-28 23:56:18,089 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6594577f5/614c6c9acf844ecf98f41eb4761d899b [2018-11-28 23:56:18,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:56:18,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:56:18,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:56:18,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:56:18,099 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:56:18,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbc0696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18, skipping insertion in model container [2018-11-28 23:56:18,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:56:18,182 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:56:18,578 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:56:18,609 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:56:18,735 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:56:18,882 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:56:18,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18 WrapperNode [2018-11-28 23:56:18,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:56:18,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:56:18,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:56:18,884 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:56:18,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:56:18,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:56:18,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:56:18,956 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:56:18,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... [2018-11-28 23:56:18,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:56:18,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:56:18,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:56:18,997 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:56:18,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:56:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:56:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 23:56:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:56:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:56:20,244 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:56:20,244 INFO L280 CfgBuilder]: Removed 98 assue(true) statements. [2018-11-28 23:56:20,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:20 BoogieIcfgContainer [2018-11-28 23:56:20,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:56:20,245 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:56:20,246 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:56:20,250 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:56:20,251 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:56:20,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:56:18" (1/3) ... [2018-11-28 23:56:20,253 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@155c6d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:56:20, skipping insertion in model container [2018-11-28 23:56:20,253 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:56:20,254 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:18" (2/3) ... [2018-11-28 23:56:20,254 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@155c6d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:56:20, skipping insertion in model container [2018-11-28 23:56:20,254 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:56:20,255 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:20" (3/3) ... [2018-11-28 23:56:20,257 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product25_true-unreach-call_false-termination.cil.c [2018-11-28 23:56:20,313 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:56:20,314 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:56:20,314 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:56:20,314 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:56:20,314 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:56:20,315 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:56:20,315 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:56:20,315 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:56:20,315 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:56:20,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states. [2018-11-28 23:56:20,360 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2018-11-28 23:56:20,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:56:20,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:56:20,371 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:20,371 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:20,371 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:56:20,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states. [2018-11-28 23:56:20,378 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2018-11-28 23:56:20,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:56:20,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:56:20,380 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:20,380 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:20,386 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.alloc(13);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(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.alloc(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.alloc(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string27.base, #t~string27.offset := #Ultimate.alloc(13);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25); 11#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 6#L168true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 25#L176true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 42#L132true assume 0 != main_~tmp~0; 26#L103true ~methAndRunningLastTime~0 := 0; 73#L529true havoc test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 76#L540-1true [2018-11-28 23:56:20,387 INFO L796 eck$LassoCheckResult]: Loop: 76#L540-1true assume !false; 70#L192true assume test_~splverifierCounter~0 < 4; 16#L193true test_~tmp~1 := test_#t~nondet2;havoc test_#t~nondet2; 10#L201true assume !(0 != test_~tmp~1); 7#L201-1true test_~tmp___0~0 := test_#t~nondet3;havoc test_#t~nondet3; 65#L211true assume !(0 != test_~tmp___0~0); 62#L211-1true test_~tmp___2~0 := test_#t~nondet4;havoc test_#t~nondet4; 45#L221true assume 0 != test_~tmp___2~0; 35#L227-2true assume !(0 != ~pumpRunning~0); 44#L261true assume !(0 != ~systemActive~0); 49#L268true havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 12#L468true __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 71#L540true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 76#L540-1true [2018-11-28 23:56:20,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:20,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-28 23:56:20,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:20,397 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:20,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:20,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:56:20,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:20,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:20,713 INFO L82 PathProgramCache]: Analyzing trace with hash 2599242, now seen corresponding path program 1 times [2018-11-28 23:56:20,714 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:20,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:20,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:20,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:56:20,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:20,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:20,749 INFO L82 PathProgramCache]: Analyzing trace with hash 835895748, now seen corresponding path program 1 times [2018-11-28 23:56:20,749 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:20,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:20,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:20,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:56:20,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:56:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:56:21,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:56:21,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:56:21,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:56:21,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:56:21,404 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 6 states. [2018-11-28 23:56:21,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:56:21,523 INFO L93 Difference]: Finished difference Result 76 states and 104 transitions. [2018-11-28 23:56:21,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:56:21,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 104 transitions. [2018-11-28 23:56:21,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2018-11-28 23:56:21,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 69 states and 97 transitions. [2018-11-28 23:56:21,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2018-11-28 23:56:21,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2018-11-28 23:56:21,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 97 transitions. [2018-11-28 23:56:21,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:56:21,543 INFO L705 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2018-11-28 23:56:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 97 transitions. [2018-11-28 23:56:21,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-11-28 23:56:21,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-28 23:56:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2018-11-28 23:56:21,579 INFO L728 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2018-11-28 23:56:21,579 INFO L608 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2018-11-28 23:56:21,580 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:56:21,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 97 transitions. [2018-11-28 23:56:21,582 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2018-11-28 23:56:21,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:56:21,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:56:21,583 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:21,583 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:21,584 INFO L794 eck$LassoCheckResult]: Stem: 219#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.alloc(13);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(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.alloc(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.alloc(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string27.base, #t~string27.offset := #Ultimate.alloc(13);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25); 188#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 176#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 177#L176 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 207#L132 assume 0 != main_~tmp~0; 210#L103 ~methAndRunningLastTime~0 := 0; 211#L529 havoc test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 181#L540-1 [2018-11-28 23:56:21,584 INFO L796 eck$LassoCheckResult]: Loop: 181#L540-1 assume !false; 238#L192 assume test_~splverifierCounter~0 < 4; 197#L193 test_~tmp~1 := test_#t~nondet2;havoc test_#t~nondet2; 184#L201 assume !(0 != test_~tmp~1); 178#L201-1 test_~tmp___0~0 := test_#t~nondet3;havoc test_#t~nondet3; 179#L211 assume !(0 != test_~tmp___0~0); 228#L211-1 test_~tmp___2~0 := test_#t~nondet4;havoc test_#t~nondet4; 226#L221 assume 0 != test_~tmp___2~0; 220#L227-2 assume !(0 != ~pumpRunning~0); 203#L261 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 204#L293 assume !(0 != ~pumpRunning~0); 206#L268 havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 186#L468 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 187#L540 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 181#L540-1 [2018-11-28 23:56:21,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:21,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-28 23:56:21,585 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:21,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:21,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:21,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:56:21,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:21,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:21,679 INFO L82 PathProgramCache]: Analyzing trace with hash 53583393, now seen corresponding path program 1 times [2018-11-28 23:56:21,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:21,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:21,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:21,680 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:56:21,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:21,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:21,693 INFO L82 PathProgramCache]: Analyzing trace with hash 115971303, now seen corresponding path program 1 times [2018-11-28 23:56:21,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:21,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:21,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:21,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:56:21,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:21,906 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-11-28 23:56:22,202 WARN L180 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-11-28 23:56:29,635 WARN L180 SmtUtils]: Spent 7.42 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-28 23:56:32,761 WARN L180 SmtUtils]: Spent 3.11 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-28 23:56:32,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:56:32 BoogieIcfgContainer [2018-11-28 23:56:32,834 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:56:32,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:56:32,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:56:32,835 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:56:32,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:20" (3/4) ... [2018-11-28 23:56:32,841 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:56:32,902 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:56:32,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:56:32,904 INFO L168 Benchmark]: Toolchain (without parser) took 14811.05 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 294.6 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -63.4 MB). Peak memory consumption was 231.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:32,906 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:56:32,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:32,907 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.92 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:32,908 INFO L168 Benchmark]: Boogie Preprocessor took 40.78 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. [2018-11-28 23:56:32,909 INFO L168 Benchmark]: RCFGBuilder took 1248.40 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:32,909 INFO L168 Benchmark]: BuchiAutomizer took 12588.85 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 363.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:32,910 INFO L168 Benchmark]: Witness Printer took 68.03 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:32,915 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 788.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.92 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.78 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 1248.40 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12588.85 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 363.7 MB. Max. memory is 11.5 GB. * Witness Printer took 68.03 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 69 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 12.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 99 SDtfs, 304 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 191]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=20, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44c5efdc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19399f3d=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a98697=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9a06f44=0, NULL=0, NULL=29, methaneLevelCritical=0, NULL=0, NULL=0, NULL=0, NULL=39, NULL=0, NULL=34, NULL=0, tmp___1=0, NULL=11, NULL=15, cleanupTimeShifts=4, tmp=0, NULL=37, NULL=18, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=27, NULL=0, NULL=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5941024c=0, retValue_acc=0, NULL=0, NULL=19, NULL=0, tmp___0=0, NULL=33, NULL=0, NULL=0, NULL=0, \result=1, NULL=16, head=0, pumpRunning=0, tmp=1, NULL=35, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c95c0ee=0, NULL=28, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cc2df1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48483783=0, NULL=38, NULL=31, NULL=14, retValue_acc=1, tmp___2=56, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=26, NULL=24, tmp=0, head=0, NULL=12, NULL=0, NULL=8, NULL=0, NULL=17, NULL=0, NULL=0, tmp=0, NULL=40} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L253] int pumpRunning = 0; [L254] int systemActive = 1; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L523] int methAndRunningLastTime ; [L731] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L528] methAndRunningLastTime = 0 [L182] int splverifierCounter ; [L183] int tmp ; [L184] int tmp___0 ; [L185] int tmp___1 ; [L186] int tmp___2 ; [L189] splverifierCounter = 0 Loop: [L191] COND TRUE 1 [L193] COND TRUE splverifierCounter < 4 [L199] tmp = __VERIFIER_nondet_int() [L201] COND FALSE !(\read(tmp)) [L209] tmp___0 = __VERIFIER_nondet_int() [L211] COND FALSE !(\read(tmp___0)) [L219] tmp___2 = __VERIFIER_nondet_int() [L221] COND TRUE \read(tmp___2) [L261] COND FALSE !(\read(pumpRunning)) [L268] COND TRUE \read(systemActive) [L290] int tmp ; [L293] COND FALSE !(\read(pumpRunning)) [L533] int tmp ; [L534] int tmp___0 ; [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); [L538] tmp = isMethaneLevelCritical() [L540] COND FALSE !(\read(tmp)) [L556] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...