./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product53.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 74af0999cbe879befd0a6903faa6dabc12f5915f ......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:03:39,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:03:39,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:03:39,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:03:39,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:03:39,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:03:39,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:03:39,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:03:39,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:03:39,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:03:39,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:03:39,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:03:39,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:03:39,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:03:39,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:03:39,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:03:39,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:03:39,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:03:39,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:03:39,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:03:39,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:03:39,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:03:39,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:03:39,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:03:39,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:03:39,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:03:39,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:03:39,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:03:39,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:03:39,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:03:39,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:03:39,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:03:39,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:03:39,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:03:39,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:03:39,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:03:39,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:03:39,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:03:39,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:03:39,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:03:39,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:03:39,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:03:39,171 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:03:39,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:03:39,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:03:39,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:03:39,175 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:03:39,175 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:03:39,176 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:03:39,176 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:03:39,176 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:03:39,176 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:03:39,177 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:03:39,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:03:39,178 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:03:39,178 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:03:39,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:03:39,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:03:39,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:03:39,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:03:39,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:03:39,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:03:39,181 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:03:39,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:03:39,181 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:03:39,181 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:03:39,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:03:39,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:03:39,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:03:39,182 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:03:39,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:03:39,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:03:39,183 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:03:39,184 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:03:39,185 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:03:39,186 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 -> 74af0999cbe879befd0a6903faa6dabc12f5915f [2019-11-28 21:03:39,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:03:39,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:03:39,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:03:39,506 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:03:39,506 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:03:39,507 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2019-11-28 21:03:39,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6895d5981/3a336bdcc1e04e428ab99a1b6cdaf6fa/FLAGacf4e6fd6 [2019-11-28 21:03:40,161 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:03:40,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2019-11-28 21:03:40,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6895d5981/3a336bdcc1e04e428ab99a1b6cdaf6fa/FLAGacf4e6fd6 [2019-11-28 21:03:40,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6895d5981/3a336bdcc1e04e428ab99a1b6cdaf6fa [2019-11-28 21:03:40,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:03:40,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:03:40,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:03:40,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:03:40,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:03:40,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:03:40" (1/1) ... [2019-11-28 21:03:40,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5596f513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:40, skipping insertion in model container [2019-11-28 21:03:40,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:03:40" (1/1) ... [2019-11-28 21:03:40,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:03:40,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:03:40,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:03:40,922 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:03:41,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:03:41,079 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:03:41,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41 WrapperNode [2019-11-28 21:03:41,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:03:41,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:03:41,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:03:41,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:03:41,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... [2019-11-28 21:03:41,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... [2019-11-28 21:03:41,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:03:41,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:03:41,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:03:41,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:03:41,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... [2019-11-28 21:03:41,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... [2019-11-28 21:03:41,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... [2019-11-28 21:03:41,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... [2019-11-28 21:03:41,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... [2019-11-28 21:03:41,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... [2019-11-28 21:03:41,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... [2019-11-28 21:03:41,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:03:41,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:03:41,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:03:41,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:03:41,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:03:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:03:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:03:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:03:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:03:42,359 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:03:42,359 INFO L287 CfgBuilder]: Removed 278 assume(true) statements. [2019-11-28 21:03:42,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:03:42 BoogieIcfgContainer [2019-11-28 21:03:42,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:03:42,361 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:03:42,362 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:03:42,366 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:03:42,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:03:42,367 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:03:40" (1/3) ... [2019-11-28 21:03:42,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3879d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:03:42, skipping insertion in model container [2019-11-28 21:03:42,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:03:42,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:03:41" (2/3) ... [2019-11-28 21:03:42,370 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3879d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:03:42, skipping insertion in model container [2019-11-28 21:03:42,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:03:42,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:03:42" (3/3) ... [2019-11-28 21:03:42,373 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2019-11-28 21:03:42,424 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:03:42,425 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:03:42,425 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:03:42,425 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:03:42,426 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:03:42,426 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:03:42,426 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:03:42,426 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:03:42,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 190 states. [2019-11-28 21:03:42,494 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-11-28 21:03:42,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:03:42,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:03:42,505 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:03:42,506 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:03:42,506 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:03:42,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 190 states. [2019-11-28 21:03:42,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-11-28 21:03:42,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:03:42,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:03:42,521 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:03:42,522 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:03:42,530 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 18#L-1true havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 164#L982true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 172#L990true main_#t~ret63 := valid_product_#res;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 140#L842true assume 0 != main_~tmp~10; 99#L815true ~methAndRunningLastTime~0 := 0; 174#L723true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 178#L734-1true [2019-11-28 21:03:42,531 INFO L796 eck$LassoCheckResult]: Loop: 178#L734-1true assume !false; 74#L64true assume test_~splverifierCounter~0 < 4; 27#L65true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 16#L73true assume !(0 != test_~tmp~0); 14#L73-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 70#L83true assume !(0 != test_~tmp___0~0); 69#L83-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 136#L93true assume 0 != test_~tmp___2~0; 123#L99-2true assume !(0 != ~pumpRunning~0); 116#L501true assume !(0 != ~systemActive~0); 33#L508true havoc __utac_acc__Specification2_spec__2_#t~ret61, __utac_acc__Specification2_spec__2_#t~ret62, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 104#L900-1true __utac_acc__Specification2_spec__2_#t~ret61 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret61;havoc __utac_acc__Specification2_spec__2_#t~ret61; 173#L734true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 178#L734-1true [2019-11-28 21:03:42,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:03:42,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:03:42,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:03:42,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100330187] [2019-11-28 21:03:42,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:03:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:42,991 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:03:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:03:42,992 INFO L82 PathProgramCache]: Analyzing trace with hash 7801738, now seen corresponding path program 1 times [2019-11-28 21:03:42,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:03:42,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041390947] [2019-11-28 21:03:42,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:03:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:43,010 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:03:43,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:03:43,012 INFO L82 PathProgramCache]: Analyzing trace with hash 841098244, now seen corresponding path program 1 times [2019-11-28 21:03:43,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:03:43,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338291933] [2019-11-28 21:03:43,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:03:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:03:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:03:43,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338291933] [2019-11-28 21:03:43,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:03:43,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:03:43,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429364096] [2019-11-28 21:03:43,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:03:43,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:03:43,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:03:43,342 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 6 states. [2019-11-28 21:03:43,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:03:43,504 INFO L93 Difference]: Finished difference Result 190 states and 281 transitions. [2019-11-28 21:03:43,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:03:43,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 281 transitions. [2019-11-28 21:03:43,517 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2019-11-28 21:03:43,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 183 states and 274 transitions. [2019-11-28 21:03:43,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2019-11-28 21:03:43,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2019-11-28 21:03:43,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 274 transitions. [2019-11-28 21:03:43,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:03:43,539 INFO L688 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2019-11-28 21:03:43,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 274 transitions. [2019-11-28 21:03:43,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-11-28 21:03:43,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-11-28 21:03:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 274 transitions. [2019-11-28 21:03:43,605 INFO L711 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2019-11-28 21:03:43,606 INFO L591 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2019-11-28 21:03:43,606 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:03:43,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 274 transitions. [2019-11-28 21:03:43,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2019-11-28 21:03:43,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:03:43,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:03:43,611 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:03:43,612 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:03:43,612 INFO L794 eck$LassoCheckResult]: Stem: 552#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 428#L-1 havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 429#L982 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 578#L990 main_#t~ret63 := valid_product_#res;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 562#L842 assume 0 != main_~tmp~10; 542#L815 ~methAndRunningLastTime~0 := 0; 543#L723 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 478#L734-1 [2019-11-28 21:03:43,612 INFO L796 eck$LassoCheckResult]: Loop: 478#L734-1 assume !false; 513#L64 assume test_~splverifierCounter~0 < 4; 449#L65 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 426#L73 assume !(0 != test_~tmp~0); 420#L73-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 421#L83 assume !(0 != test_~tmp___0~0); 508#L83-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 509#L93 assume 0 != test_~tmp___2~0; 554#L99-2 assume !(0 != ~pumpRunning~0); 495#L501 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 434#L585 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret40, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 436#L559-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 520#L533-3 assume !(0 == ~pumpRunning~0); 423#L508 havoc __utac_acc__Specification2_spec__2_#t~ret61, __utac_acc__Specification2_spec__2_#t~ret62, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 457#L900-1 __utac_acc__Specification2_spec__2_#t~ret61 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret61;havoc __utac_acc__Specification2_spec__2_#t~ret61; 545#L734 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 478#L734-1 [2019-11-28 21:03:43,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:03:43,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:03:43,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:03:43,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465017107] [2019-11-28 21:03:43,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:03:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:43,773 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:03:43,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:03:43,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1898042756, now seen corresponding path program 1 times [2019-11-28 21:03:43,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:03:43,776 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399611241] [2019-11-28 21:03:43,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:03:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:03:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:03:43,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399611241] [2019-11-28 21:03:43,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:03:43,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:03:43,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810379862] [2019-11-28 21:03:43,798 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:03:43,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:03:43,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:03:43,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:03:43,799 INFO L87 Difference]: Start difference. First operand 183 states and 274 transitions. cyclomatic complexity: 93 Second operand 3 states. [2019-11-28 21:03:43,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:03:43,955 INFO L93 Difference]: Finished difference Result 191 states and 268 transitions. [2019-11-28 21:03:43,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:03:43,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 268 transitions. [2019-11-28 21:03:43,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2019-11-28 21:03:43,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 191 states and 268 transitions. [2019-11-28 21:03:43,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 191 [2019-11-28 21:03:43,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 191 [2019-11-28 21:03:43,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 191 states and 268 transitions. [2019-11-28 21:03:43,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:03:43,963 INFO L688 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2019-11-28 21:03:43,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states and 268 transitions. [2019-11-28 21:03:43,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2019-11-28 21:03:43,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2019-11-28 21:03:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 268 transitions. [2019-11-28 21:03:43,973 INFO L711 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2019-11-28 21:03:43,973 INFO L591 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2019-11-28 21:03:43,973 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:03:43,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 268 transitions. [2019-11-28 21:03:43,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2019-11-28 21:03:43,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:03:43,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:03:43,977 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:03:43,977 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, 1] [2019-11-28 21:03:43,977 INFO L794 eck$LassoCheckResult]: Stem: 910#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 800#L-1 havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 801#L982 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 930#L990 main_#t~ret63 := valid_product_#res;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 918#L842 assume 0 != main_~tmp~10; 894#L815 ~methAndRunningLastTime~0 := 0; 895#L723 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 841#L734-1 [2019-11-28 21:03:43,978 INFO L796 eck$LassoCheckResult]: Loop: 841#L734-1 assume !false; 871#L64 assume test_~splverifierCounter~0 < 4; 816#L65 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 797#L73 assume !(0 != test_~tmp~0); 792#L73-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 793#L83 assume !(0 != test_~tmp___0~0); 866#L83-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 867#L93 assume 0 != test_~tmp___2~0; 911#L99-2 assume !(0 != ~pumpRunning~0); 907#L501 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 804#L585 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret40, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 805#L559-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 876#L533-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 806#L940-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 807#L945-3 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 859#L687-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 926#L687-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 923#L693-3 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 886#L537-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 811#L508 havoc __utac_acc__Specification2_spec__2_#t~ret61, __utac_acc__Specification2_spec__2_#t~ret62, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 821#L900-1 __utac_acc__Specification2_spec__2_#t~ret61 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret61;havoc __utac_acc__Specification2_spec__2_#t~ret61; 901#L734 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 841#L734-1 [2019-11-28 21:03:43,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:03:43,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:03:43,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:03:43,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383924331] [2019-11-28 21:03:43,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:03:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:44,104 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:03:44,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:03:44,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1628692856, now seen corresponding path program 1 times [2019-11-28 21:03:44,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:03:44,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854600923] [2019-11-28 21:03:44,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:03:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:44,132 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:03:44,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:03:44,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1799089998, now seen corresponding path program 1 times [2019-11-28 21:03:44,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:03:44,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342191101] [2019-11-28 21:03:44,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:03:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:03:44,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:03:44,387 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-28 21:04:06,588 WARN L192 SmtUtils]: Spent 22.13 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:04:20,086 WARN L192 SmtUtils]: Spent 13.48 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:04:20,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:04:20 BoogieIcfgContainer [2019-11-28 21:04:20,190 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:04:20,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:04:20,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:04:20,191 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:04:20,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:03:42" (3/4) ... [2019-11-28 21:04:20,195 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:04:20,256 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:04:20,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:04:20,258 INFO L168 Benchmark]: Toolchain (without parser) took 39865.40 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.0 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -216.9 MB). Peak memory consumption was 97.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:04:20,259 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:04:20,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:04:20,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:04:20,261 INFO L168 Benchmark]: Boogie Preprocessor took 64.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:04:20,261 INFO L168 Benchmark]: RCFGBuilder took 1124.75 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: 83.6 MB). Peak memory consumption was 83.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:04:20,262 INFO L168 Benchmark]: BuchiAutomizer took 37828.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -149.4 MB). Peak memory consumption was 347.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:04:20,263 INFO L168 Benchmark]: Witness Printer took 66.17 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:04:20,266 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 683.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1124.75 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: 83.6 MB). Peak memory consumption was 83.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37828.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -149.4 MB). Peak memory consumption was 347.5 MB. Max. memory is 11.5 GB. * Witness Printer took 66.17 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 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 6 locations. The remainder module has 191 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 37.1s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 191 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 490 SDtfs, 974 SDslu, 83 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 63]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2} State at position 1 is {NULL=0, NULL=0, NULL=2, NULL=7, NULL=6, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@406ede9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@745f24e7=72, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4048759e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dbb0617=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@290972e1=0, retValue_acc=1, NULL=18, methaneLevelCritical=0, tmp___0=0, retValue_acc=0, NULL=0, NULL=0, NULL=10, NULL=0, tmp___1=0, tmp=0, NULL=16, NULL=4, tmp=0, cleanupTimeShifts=4, tmp=0, NULL=25, NULL=23, NULL=13, NULL=22, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ffb7f3c=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f2b625f=0, NULL=0, systemActive=1, waterLevel=1, NULL=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45b8c0d5=0, NULL=0, NULL=3, retValue_acc=0, \result=0, NULL=24, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=19, NULL=0, NULL=0, NULL=0, NULL=0, NULL=26, \result=1, NULL=27, NULL=20, NULL=9, NULL=0, NULL=0, tmp=1, tmp___0=0, tmp___2=72, NULL=15, retValue_acc=1, splverifierCounter=0, methAndRunningLastTime=0, \result=0, NULL=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@212c9cb3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fbf859a=0, head=0, NULL=0, NULL=12, NULL=0, tmp=0, NULL=21, NULL=11, NULL=0, NULL=0, NULL=14, NULL=0, NULL=8, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53f3cce1=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L287] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L493] int pumpRunning = 0; [L494] int systemActive = 1; [L717] int methAndRunningLastTime ; [L756] int cleanupTimeShifts = 4; [L857] int waterLevel = 1; [L858] int methaneLevelCritical = 0; [L833] int retValue_acc ; [L834] int tmp ; [L986] int retValue_acc ; [L989] retValue_acc = 1 [L990] return (retValue_acc); [L840] tmp = valid_product() [L842] COND TRUE \read(tmp) [L722] methAndRunningLastTime = 0 [L54] int splverifierCounter ; [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L58] int tmp___2 ; [L61] splverifierCounter = 0 Loop: [L63] COND TRUE 1 [L65] COND TRUE splverifierCounter < 4 [L71] tmp = __VERIFIER_nondet_int() [L73] COND FALSE !(\read(tmp)) [L81] tmp___0 = __VERIFIER_nondet_int() [L83] COND FALSE !(\read(tmp___0)) [L91] tmp___2 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___2) [L501] COND FALSE !(\read(pumpRunning)) [L508] COND TRUE \read(systemActive) [L582] int tmp ; [L585] COND FALSE !(\read(pumpRunning)) [L556] int tmp ; [L559] COND FALSE !(\read(pumpRunning)) [L530] int tmp ; [L533] COND TRUE ! pumpRunning [L679] int retValue_acc ; [L680] int tmp ; [L681] int tmp___0 ; [L937] int retValue_acc ; [L940] COND TRUE waterLevel < 2 [L941] retValue_acc = 1 [L942] return (retValue_acc); [L685] tmp = isHighWaterSensorDry() [L687] COND TRUE \read(tmp) [L688] tmp___0 = 0 [L692] retValue_acc = tmp___0 [L693] return (retValue_acc); [L535] tmp = isHighWaterLevel() [L537] COND FALSE !(\read(tmp)) [L727] int tmp ; [L728] int tmp___0 ; [L896] int retValue_acc ; [L899] retValue_acc = methaneLevelCritical [L900] return (retValue_acc); [L732] tmp = isMethaneLevelCritical() [L734] COND FALSE !(\read(tmp)) [L750] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...