./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product49.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_spec4_product49.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 712263c6c933aaef268a48b623f3b4ee6fd9ad4b .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:10:43,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:10:43,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:10:43,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:10:43,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:10:43,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:10:43,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:10:43,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:10:43,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:10:43,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:10:43,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:10:43,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:10:43,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:10:43,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:10:43,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:10:43,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:10:43,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:10:43,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:10:43,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:10:43,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:10:43,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:10:43,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:10:43,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:10:43,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:10:43,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:10:43,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:10:43,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:10:43,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:10:43,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:10:43,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:10:43,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:10:43,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:10:43,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:10:43,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:10:43,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:10:43,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:10:43,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:10:43,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:10:43,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:10:43,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:10:43,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:10:43,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:10:43,475 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:10:43,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:10:43,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:10:43,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:10:43,478 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:10:43,478 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:10:43,478 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:10:43,479 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:10:43,479 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:10:43,479 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:10:43,479 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:10:43,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:10:43,480 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:10:43,480 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:10:43,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:10:43,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:10:43,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:10:43,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:10:43,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:10:43,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:10:43,482 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:10:43,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:10:43,483 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:10:43,483 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:10:43,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:10:43,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:10:43,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:10:43,484 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:10:43,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:10:43,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:10:43,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:10:43,485 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:10:43,486 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:10:43,487 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 -> 712263c6c933aaef268a48b623f3b4ee6fd9ad4b [2019-11-28 21:10:43,799 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:10:43,813 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:10:43,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:10:43,818 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:10:43,819 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:10:43,820 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2019-11-28 21:10:43,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f5976d3c/4317b330eea342e385a194f5619e1247/FLAGffe561fcb [2019-11-28 21:10:44,396 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:10:44,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2019-11-28 21:10:44,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f5976d3c/4317b330eea342e385a194f5619e1247/FLAGffe561fcb [2019-11-28 21:10:44,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f5976d3c/4317b330eea342e385a194f5619e1247 [2019-11-28 21:10:44,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:10:44,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:10:44,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:44,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:10:44,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:10:44,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:44" (1/1) ... [2019-11-28 21:10:44,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4f4d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:44, skipping insertion in model container [2019-11-28 21:10:44,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:44" (1/1) ... [2019-11-28 21:10:44,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:10:44,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:10:45,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:45,272 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:10:45,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:45,383 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:10:45,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45 WrapperNode [2019-11-28 21:10:45,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:45,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:45,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:10:45,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:10:45,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... [2019-11-28 21:10:45,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... [2019-11-28 21:10:45,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:45,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:10:45,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:10:45,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:10:45,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... [2019-11-28 21:10:45,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... [2019-11-28 21:10:45,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... [2019-11-28 21:10:45,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... [2019-11-28 21:10:45,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... [2019-11-28 21:10:45,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... [2019-11-28 21:10:45,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... [2019-11-28 21:10:45,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:10:45,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:10:45,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:10:45,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:10:45,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:10:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:10:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:10:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:10:45,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:10:46,422 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:10:46,422 INFO L287 CfgBuilder]: Removed 156 assume(true) statements. [2019-11-28 21:10:46,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:46 BoogieIcfgContainer [2019-11-28 21:10:46,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:10:46,424 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:10:46,425 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:10:46,428 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:10:46,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:46,430 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:10:44" (1/3) ... [2019-11-28 21:10:46,431 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cef9332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:46, skipping insertion in model container [2019-11-28 21:10:46,431 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:46,431 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:45" (2/3) ... [2019-11-28 21:10:46,432 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cef9332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:46, skipping insertion in model container [2019-11-28 21:10:46,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:46,432 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:46" (3/3) ... [2019-11-28 21:10:46,434 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2019-11-28 21:10:46,481 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:10:46,481 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:10:46,482 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:10:46,482 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:10:46,484 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:10:46,484 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:10:46,484 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:10:46,485 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:10:46,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-11-28 21:10:46,541 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-28 21:10:46,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:46,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:46,549 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:46,549 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:46,549 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:10:46,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-11-28 21:10:46,558 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-28 21:10:46,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:46,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:46,559 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:46,560 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:46,565 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 3#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 99#L550true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 104#L558true main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 70#L248true assume 0 != main_~tmp~0; 38#L221true havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 33#L571-1true [2019-11-28 21:10:46,566 INFO L796 eck$LassoCheckResult]: Loop: 33#L571-1true assume !false; 65#L474true assume test_~splverifierCounter~0 < 4; 10#L475true test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 12#L483true assume !(0 != test_~tmp~5); 15#L483-1true test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 66#L493true assume !(0 != test_~tmp___0~2); 67#L493-1true test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 109#L503true assume 0 != test_~tmp___2~0; 85#L509-2true assume !(0 != ~pumpRunning~0); 56#L273true assume !(0 != ~systemActive~0); 114#L280true havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 89#L132true __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; 31#L571true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 33#L571-1true [2019-11-28 21:10:46,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:46,573 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:10:46,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:46,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024719955] [2019-11-28 21:10:46,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:46,974 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:46,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:46,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1679775166, now seen corresponding path program 1 times [2019-11-28 21:10:46,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:46,976 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300317297] [2019-11-28 21:10:46,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:46,994 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:46,996 INFO L82 PathProgramCache]: Analyzing trace with hash 34503772, now seen corresponding path program 1 times [2019-11-28 21:10:46,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:46,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279505185] [2019-11-28 21:10:46,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:47,196 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 21:10:47,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279505185] [2019-11-28 21:10:47,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:47,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:10:47,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107360868] [2019-11-28 21:10:47,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:47,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:10:47,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:10:47,343 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 6 states. [2019-11-28 21:10:47,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:47,528 INFO L93 Difference]: Finished difference Result 114 states and 163 transitions. [2019-11-28 21:10:47,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:10:47,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 163 transitions. [2019-11-28 21:10:47,546 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 21:10:47,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2019-11-28 21:10:47,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2019-11-28 21:10:47,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2019-11-28 21:10:47,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2019-11-28 21:10:47,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:47,563 INFO L688 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-11-28 21:10:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2019-11-28 21:10:47,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-11-28 21:10:47,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-28 21:10:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2019-11-28 21:10:47,600 INFO L711 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-11-28 21:10:47,600 INFO L591 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-11-28 21:10:47,601 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:10:47,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2019-11-28 21:10:47,603 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 21:10:47,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:47,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:47,604 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:47,604 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:47,604 INFO L794 eck$LassoCheckResult]: Stem: 336#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 246#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 247#L550 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 351#L558 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 326#L248 assume 0 != main_~tmp~0; 301#L221 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 292#L571-1 [2019-11-28 21:10:47,605 INFO L796 eck$LassoCheckResult]: Loop: 292#L571-1 assume !false; 294#L474 assume test_~splverifierCounter~0 < 4; 260#L475 test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 261#L483 assume !(0 != test_~tmp~5); 266#L483-1 test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 269#L493 assume !(0 != test_~tmp___0~2); 259#L493-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 325#L503 assume 0 != test_~tmp___2~0; 338#L509-2 assume !(0 != ~pumpRunning~0); 319#L273 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 320#L331 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 322#L305-1 assume !(0 == ~pumpRunning~0); 305#L280 havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 342#L132 __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; 291#L571 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 292#L571-1 [2019-11-28 21:10:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:47,606 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:10:47,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:47,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497323230] [2019-11-28 21:10:47,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:47,709 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:47,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:47,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1996917024, now seen corresponding path program 1 times [2019-11-28 21:10:47,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:47,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626854648] [2019-11-28 21:10:47,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:47,737 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 21:10:47,738 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626854648] [2019-11-28 21:10:47,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:47,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:10:47,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422048819] [2019-11-28 21:10:47,739 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:10:47,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:47,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:10:47,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:10:47,740 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand 3 states. [2019-11-28 21:10:47,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:47,850 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2019-11-28 21:10:47,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:10:47,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2019-11-28 21:10:47,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2019-11-28 21:10:47,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2019-11-28 21:10:47,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2019-11-28 21:10:47,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2019-11-28 21:10:47,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2019-11-28 21:10:47,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:47,860 INFO L688 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2019-11-28 21:10:47,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2019-11-28 21:10:47,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-11-28 21:10:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-28 21:10:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2019-11-28 21:10:47,872 INFO L711 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2019-11-28 21:10:47,872 INFO L591 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2019-11-28 21:10:47,872 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:10:47,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2019-11-28 21:10:47,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2019-11-28 21:10:47,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:47,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:47,875 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:47,875 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:47,876 INFO L794 eck$LassoCheckResult]: Stem: 600#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 507#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 508#L550 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 619#L558 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 589#L248 assume 0 != main_~tmp~0; 562#L221 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 553#L571-1 [2019-11-28 21:10:47,876 INFO L796 eck$LassoCheckResult]: Loop: 553#L571-1 assume !false; 555#L474 assume test_~splverifierCounter~0 < 4; 521#L475 test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 522#L483 assume !(0 != test_~tmp~5); 527#L483-1 test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 530#L493 assume !(0 != test_~tmp___0~2); 520#L493-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 588#L503 assume 0 != test_~tmp___2~0; 602#L509-2 assume !(0 != ~pumpRunning~0); 582#L273 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 583#L331 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 585#L305-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 614#L140-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 615#L145-1 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 558#L433-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 559#L433-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 537#L439-1 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 538#L309-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 567#L280 havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 608#L132 __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; 552#L571 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 553#L571-1 [2019-11-28 21:10:47,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:47,877 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:10:47,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:47,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089044166] [2019-11-28 21:10:47,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:48,000 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:48,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:48,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1058929100, now seen corresponding path program 1 times [2019-11-28 21:10:48,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:48,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380026837] [2019-11-28 21:10:48,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:48,031 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:48,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:48,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1515000294, now seen corresponding path program 1 times [2019-11-28 21:10:48,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:48,035 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037009966] [2019-11-28 21:10:48,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:48,141 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:48,285 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-28 21:11:18,492 WARN L192 SmtUtils]: Spent 30.12 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:11:33,335 WARN L192 SmtUtils]: Spent 14.84 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:11:33,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:11:33 BoogieIcfgContainer [2019-11-28 21:11:33,407 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:11:33,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:11:33,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:11:33,408 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:11:33,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:46" (3/4) ... [2019-11-28 21:11:33,412 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:11:33,475 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:11:33,475 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:11:33,477 INFO L168 Benchmark]: Toolchain (without parser) took 48761.44 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.5 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -232.9 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:33,478 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:11:33,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:33,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.72 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 21:11:33,480 INFO L168 Benchmark]: Boogie Preprocessor took 46.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:11:33,481 INFO L168 Benchmark]: RCFGBuilder took 921.34 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:33,482 INFO L168 Benchmark]: BuchiAutomizer took 46982.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 161.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -129.0 MB). Peak memory consumption was 355.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:33,482 INFO L168 Benchmark]: Witness Printer took 68.10 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:33,486 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 666.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.72 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 46.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 921.34 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46982.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 161.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -129.0 MB). Peak memory consumption was 355.8 MB. Max. memory is 11.5 GB. * Witness Printer took 68.10 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 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 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 46.3s. 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 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 316 SDtfs, 584 SDslu, 68 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 473]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2283} State at position 1 is {NULL=2309, NULL=0, NULL=0, NULL=2296, NULL=2283, retValue_acc=0, NULL=2310, NULL=2304, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1071c7c2=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25566a40=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61dbd363=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f8e499=0, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cf91e43=0, NULL=2298, NULL=0, retValue_acc=0, tmp___1=0, NULL=2291, NULL=2299, cleanupTimeShifts=4, tmp=0, NULL=2290, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58411663=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f8003be=62, NULL=2285, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33c8c19=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=2287, \result=1, NULL=2292, \result=0, NULL=2289, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=2295, \result=0, NULL=2306, NULL=0, NULL=2294, retValue_acc=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c6d443e=0, \result=1, NULL=2302, NULL=2305, NULL=0, tmp=1, tmp=1, NULL=2308, tmp___2=62, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=2284, NULL=2300, NULL=2286, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c1eb798=0, head=0, NULL=2307, NULL=2303, NULL=2297, NULL=2293} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L160] int cleanupTimeShifts = 4; [L265] int pumpRunning = 0; [L266] int systemActive = 1; [L758] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L239] int retValue_acc ; [L240] int tmp ; [L554] int retValue_acc ; [L557] retValue_acc = 1 [L558] return (retValue_acc); [L246] tmp = valid_product() [L248] COND TRUE \read(tmp) [L464] int splverifierCounter ; [L465] int tmp ; [L466] int tmp___0 ; [L467] int tmp___1 ; [L468] int tmp___2 ; [L471] splverifierCounter = 0 Loop: [L473] COND TRUE 1 [L475] COND TRUE splverifierCounter < 4 [L481] tmp = __VERIFIER_nondet_int() [L483] COND FALSE !(\read(tmp)) [L491] tmp___0 = __VERIFIER_nondet_int() [L493] COND FALSE !(\read(tmp___0)) [L501] tmp___2 = __VERIFIER_nondet_int() [L503] COND TRUE \read(tmp___2) [L273] COND FALSE !(\read(pumpRunning)) [L280] COND TRUE \read(systemActive) [L328] int tmp ; [L331] COND FALSE !(\read(pumpRunning)) [L302] int tmp ; [L305] COND TRUE ! pumpRunning [L425] int retValue_acc ; [L426] int tmp ; [L427] int tmp___0 ; [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L431] tmp = isHighWaterSensorDry() [L433] COND TRUE \read(tmp) [L434] tmp___0 = 0 [L438] retValue_acc = tmp___0 [L439] return (retValue_acc); [L307] tmp = isHighWaterLevel() [L309] COND FALSE !(\read(tmp)) [L564] int tmp ; [L565] int tmp___0 ; [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L569] tmp = getWaterLevel() [L571] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...