./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 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_product44.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 1e304dec1a19556a559249c7b1ef76290bc8b678 .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 20:03:06,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:03:06,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:03:06,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:03:06,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:03:06,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:03:06,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:03:06,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:03:06,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:03:06,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:03:06,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:03:06,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:03:06,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:03:06,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:03:06,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:03:06,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:03:06,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:03:06,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:03:06,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:03:06,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:03:06,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:03:06,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:03:06,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:03:06,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:03:06,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:03:06,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:03:06,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:03:06,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:03:06,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:03:06,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:03:06,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:03:06,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:03:06,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:03:06,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:03:06,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:03:06,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:03:06,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:03:06,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:03:06,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:03:06,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:03:06,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:03:06,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:03:06,503 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:03:06,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:03:06,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:03:06,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:03:06,505 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:03:06,505 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:03:06,505 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:03:06,506 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:03:06,507 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:03:06,507 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:03:06,509 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:03:06,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:03:06,509 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:03:06,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:03:06,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:03:06,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:03:06,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:03:06,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:03:06,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:03:06,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:03:06,512 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:03:06,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:03:06,512 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:03:06,513 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:03:06,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:03:06,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:03:06,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:03:06,514 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:03:06,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:03:06,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:03:06,515 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:03:06,518 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:03:06,518 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 -> 1e304dec1a19556a559249c7b1ef76290bc8b678 [2019-11-19 20:03:06,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:03:06,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:03:06,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:03:06,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:03:06,840 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:03:06,841 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-11-19 20:03:06,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42523dc14/7cc519ec56b14cab935ef9a112b0d477/FLAG7cabec3ed [2019-11-19 20:03:07,428 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:03:07,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-11-19 20:03:07,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42523dc14/7cc519ec56b14cab935ef9a112b0d477/FLAG7cabec3ed [2019-11-19 20:03:07,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42523dc14/7cc519ec56b14cab935ef9a112b0d477 [2019-11-19 20:03:07,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:03:07,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:03:07,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:03:07,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:03:07,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:03:07,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:07" (1/1) ... [2019-11-19 20:03:07,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfa0dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:07, skipping insertion in model container [2019-11-19 20:03:07,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:07" (1/1) ... [2019-11-19 20:03:07,820 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:03:07,889 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:03:08,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:03:08,401 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:03:08,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:03:08,573 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:03:08,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08 WrapperNode [2019-11-19 20:03:08,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:03:08,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:03:08,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:03:08,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:03:08,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (1/1) ... [2019-11-19 20:03:08,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (1/1) ... [2019-11-19 20:03:08,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:03:08,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:03:08,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:03:08,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:03:08,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (1/1) ... [2019-11-19 20:03:08,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (1/1) ... [2019-11-19 20:03:08,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (1/1) ... [2019-11-19 20:03:08,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (1/1) ... [2019-11-19 20:03:08,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (1/1) ... [2019-11-19 20:03:08,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (1/1) ... [2019-11-19 20:03:08,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (1/1) ... [2019-11-19 20:03:08,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:03:08,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:03:08,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:03:08,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:03:08,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (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 [2019-11-19 20:03:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:03:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 20:03:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:03:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:03:09,562 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:03:09,562 INFO L285 CfgBuilder]: Removed 122 assume(true) statements. [2019-11-19 20:03:09,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:09 BoogieIcfgContainer [2019-11-19 20:03:09,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:03:09,565 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:03:09,565 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:03:09,568 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:03:09,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:03:09,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:03:07" (1/3) ... [2019-11-19 20:03:09,571 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71f8c920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:03:09, skipping insertion in model container [2019-11-19 20:03:09,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:03:09,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:08" (2/3) ... [2019-11-19 20:03:09,572 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71f8c920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:03:09, skipping insertion in model container [2019-11-19 20:03:09,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:03:09,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:09" (3/3) ... [2019-11-19 20:03:09,573 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2019-11-19 20:03:09,624 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:03:09,625 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:03:09,625 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:03:09,625 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:03:09,625 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:03:09,626 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:03:09,626 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:03:09,626 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:03:09,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states. [2019-11-19 20:03:09,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2019-11-19 20:03:09,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:03:09,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:03:09,684 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:09,685 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:09,685 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:03:09,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states. [2019-11-19 20:03:09,691 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2019-11-19 20:03:09,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:03:09,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:03:09,692 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:09,694 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:09,699 INFO L794 eck$LassoCheckResult]: Stem: 52#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25); 8#L-1true havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 43#L351true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 56#L359true main_#t~ret25 := valid_product_#res;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; 81#L448true assume 0 != main_~tmp~4; 89#L423true ~methAndRunningLastTime~0 := 0; 9#L468true 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; 13#L479-1true [2019-11-19 20:03:09,700 INFO L796 eck$LassoCheckResult]: Loop: 13#L479-1true assume !false; 59#L66true assume test_~splverifierCounter~0 < 4; 79#L67true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 87#L75true assume !(0 != test_~tmp~0); 85#L75-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 76#L85true assume !(0 != test_~tmp___0~0); 44#L85-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 48#L95true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 33#L103-1true assume !(0 != ~pumpRunning~0); 78#L140true assume !(0 != ~systemActive~0); 40#L147true havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 41#L545-1true __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 46#L479true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 13#L479-1true [2019-11-19 20:03:09,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:09,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-19 20:03:09,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:09,717 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781198802] [2019-11-19 20:03:09,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:10,620 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:10,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:10,623 INFO L82 PathProgramCache]: Analyzing trace with hash 12634836, now seen corresponding path program 1 times [2019-11-19 20:03:10,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:10,626 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222772303] [2019-11-19 20:03:10,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:03:10,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:03:10,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222772303] [2019-11-19 20:03:10,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:03:10,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:03:10,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641550911] [2019-11-19 20:03:10,713 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:03:10,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:03:10,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:03:10,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:03:10,736 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 3 states. [2019-11-19 20:03:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:03:10,826 INFO L93 Difference]: Finished difference Result 173 states and 247 transitions. [2019-11-19 20:03:10,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:03:10,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173 states and 247 transitions. [2019-11-19 20:03:10,837 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 110 [2019-11-19 20:03:10,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173 states to 159 states and 232 transitions. [2019-11-19 20:03:10,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2019-11-19 20:03:10,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2019-11-19 20:03:10,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 232 transitions. [2019-11-19 20:03:10,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:03:10,850 INFO L688 BuchiCegarLoop]: Abstraction has 159 states and 232 transitions. [2019-11-19 20:03:10,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 232 transitions. [2019-11-19 20:03:10,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2019-11-19 20:03:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-19 20:03:10,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 229 transitions. [2019-11-19 20:03:10,894 INFO L711 BuchiCegarLoop]: Abstraction has 157 states and 229 transitions. [2019-11-19 20:03:10,895 INFO L591 BuchiCegarLoop]: Abstraction has 157 states and 229 transitions. [2019-11-19 20:03:10,895 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:03:10,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 157 states and 229 transitions. [2019-11-19 20:03:10,898 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2019-11-19 20:03:10,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:03:10,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:03:10,900 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:10,900 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:10,901 INFO L794 eck$LassoCheckResult]: Stem: 349#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25); 282#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 283#L351 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 339#L359 main_#t~ret25 := valid_product_#res;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; 354#L448 assume 0 != main_~tmp~4; 377#L423 ~methAndRunningLastTime~0 := 0; 284#L468 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; 285#L479-1 [2019-11-19 20:03:10,901 INFO L796 eck$LassoCheckResult]: Loop: 285#L479-1 assume !false; 389#L66 assume test_~splverifierCounter~0 < 4; 374#L67 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 375#L75 assume !(0 != test_~tmp~0); 351#L75-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 379#L85 assume !(0 != test_~tmp___0~0); 340#L85-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 341#L95 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 345#L103-1 assume !(0 != ~pumpRunning~0); 372#L140 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 373#L172 assume !(0 == ~pumpRunning~0); 395#L147 havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 394#L545-1 __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 392#L479 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 285#L479-1 [2019-11-19 20:03:10,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:10,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-19 20:03:10,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:10,903 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628892346] [2019-11-19 20:03:10,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:11,154 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:11,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:11,155 INFO L82 PathProgramCache]: Analyzing trace with hash 349910497, now seen corresponding path program 1 times [2019-11-19 20:03:11,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:11,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960971209] [2019-11-19 20:03:11,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:03:11,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:03:11,172 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960971209] [2019-11-19 20:03:11,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:03:11,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:03:11,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709156409] [2019-11-19 20:03:11,173 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:03:11,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:03:11,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:03:11,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:03:11,175 INFO L87 Difference]: Start difference. First operand 157 states and 229 transitions. cyclomatic complexity: 75 Second operand 3 states. [2019-11-19 20:03:11,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:03:11,283 INFO L93 Difference]: Finished difference Result 246 states and 347 transitions. [2019-11-19 20:03:11,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:03:11,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 347 transitions. [2019-11-19 20:03:11,293 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 175 [2019-11-19 20:03:11,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 246 states and 347 transitions. [2019-11-19 20:03:11,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 246 [2019-11-19 20:03:11,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 246 [2019-11-19 20:03:11,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 246 states and 347 transitions. [2019-11-19 20:03:11,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:03:11,306 INFO L688 BuchiCegarLoop]: Abstraction has 246 states and 347 transitions. [2019-11-19 20:03:11,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states and 347 transitions. [2019-11-19 20:03:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2019-11-19 20:03:11,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-11-19 20:03:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 347 transitions. [2019-11-19 20:03:11,345 INFO L711 BuchiCegarLoop]: Abstraction has 246 states and 347 transitions. [2019-11-19 20:03:11,345 INFO L591 BuchiCegarLoop]: Abstraction has 246 states and 347 transitions. [2019-11-19 20:03:11,346 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:03:11,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 347 transitions. [2019-11-19 20:03:11,350 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 175 [2019-11-19 20:03:11,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:03:11,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:03:11,353 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:03:11,353 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] [2019-11-19 20:03:11,354 INFO L794 eck$LassoCheckResult]: Stem: 757#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25); 693#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 694#L351 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 753#L359 main_#t~ret25 := valid_product_#res;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; 763#L448 assume 0 != main_~tmp~4; 783#L423 ~methAndRunningLastTime~0 := 0; 695#L468 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; 696#L479-1 [2019-11-19 20:03:11,354 INFO L796 eck$LassoCheckResult]: Loop: 696#L479-1 assume !false; 701#L66 assume test_~splverifierCounter~0 < 4; 779#L67 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 780#L75 assume !(0 != test_~tmp~0); 786#L75-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 787#L85 assume !(0 != test_~tmp___0~0); 848#L85-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 754#L95 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 730#L103-1 assume !(0 != ~pumpRunning~0); 731#L140 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 761#L172 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 762#L585 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 844#L590 isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; 843#L292 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 842#L292-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 788#L298 processEnvironment_#t~ret4 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; 724#L176 assume !(0 != processEnvironment_~tmp~1); 725#L147 havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 743#L545-1 __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 853#L479 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 696#L479-1 [2019-11-19 20:03:11,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:11,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-19 20:03:11,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:11,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891382036] [2019-11-19 20:03:11,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:11,636 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:11,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:11,637 INFO L82 PathProgramCache]: Analyzing trace with hash -678068499, now seen corresponding path program 1 times [2019-11-19 20:03:11,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:11,638 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201275806] [2019-11-19 20:03:11,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:11,653 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:11,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:03:11,654 INFO L82 PathProgramCache]: Analyzing trace with hash 487508275, now seen corresponding path program 1 times [2019-11-19 20:03:11,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:03:11,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867985417] [2019-11-19 20:03:11,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:03:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:03:11,987 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:03:12,169 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-19 20:03:37,782 WARN L191 SmtUtils]: Spent 25.53 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-11-19 20:03:50,272 WARN L191 SmtUtils]: Spent 12.47 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-19 20:03:50,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:03:50 BoogieIcfgContainer [2019-11-19 20:03:50,347 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:03:50,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:03:50,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:03:50,348 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:03:50,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:09" (3/4) ... [2019-11-19 20:03:50,352 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 20:03:50,415 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:03:50,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:03:50,418 INFO L168 Benchmark]: Toolchain (without parser) took 42612.30 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 347.6 MB). Free memory was 952.3 MB in the beginning and 1.3 GB in the end (delta: -345.7 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:50,418 INFO L168 Benchmark]: CDTParser took 0.26 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. [2019-11-19 20:03:50,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:50,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.81 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. [2019-11-19 20:03:50,421 INFO L168 Benchmark]: Boogie Preprocessor took 40.93 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. [2019-11-19 20:03:50,421 INFO L168 Benchmark]: RCFGBuilder took 862.63 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: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:50,422 INFO L168 Benchmark]: BuchiAutomizer took 40783.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -230.8 MB). Peak memory consumption was 374.9 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:50,423 INFO L168 Benchmark]: Witness Printer took 68.15 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:50,427 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 769.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.81 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 40.93 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 862.63 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: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40783.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -230.8 MB). Peak memory consumption was 374.9 MB. Max. memory is 11.5 GB. * Witness Printer took 68.15 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 246 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 40.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 246 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 246 SDtfs, 224 SDslu, 170 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=-6, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@294f4a8c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b5b0fad=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@247c1b4d=62, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11ae7121=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c7a98ca=0, NULL=-21, methaneLevelCritical=0, NULL=-15, NULL=-24, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=-14, retValue_acc=0, NULL=0, NULL=-12, NULL=0, tmp___1=0, NULL=-19, NULL=0, NULL=-25, cleanupTimeShifts=4, tmp=0, NULL=-17, NULL=-9, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-23, NULL=0, NULL=-4, retValue_acc=0, NULL=0, NULL=-11, \result=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15873561=0, NULL=-5, NULL=0, NULL=0, NULL=0, \result=1, NULL=-20, head=0, pumpRunning=0, retValue_acc=1, NULL=-3, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@554b4461=0, tmp=1, NULL=-8, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-13, \result=1, retValue_acc=1, NULL=-10, NULL=-16, NULL=-18, tmp=1, tmp___2=62, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=-1, NULL=-2, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@153b5d59=0, NULL=0, NULL=0, NULL=-22, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b75cc9e=0, NULL=0, tmp=0, NULL=-7} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L364] int cleanupTimeShifts = 4; [L462] int methAndRunningLastTime ; [L502] int waterLevel = 1; [L503] int methaneLevelCritical = 0; [L765] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L439] int retValue_acc ; [L440] int tmp ; [L355] int retValue_acc ; [L358] retValue_acc = 1 [L359] return (retValue_acc); [L446] tmp = valid_product() [L448] COND TRUE \read(tmp) [L467] methAndRunningLastTime = 0 [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L321] systemActive = 1 [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L169] int tmp ; [L172] COND TRUE ! pumpRunning [L284] int retValue_acc ; [L285] int tmp ; [L286] int tmp___0 ; [L582] int retValue_acc ; [L585] COND TRUE waterLevel < 2 [L586] retValue_acc = 1 [L587] return (retValue_acc); [L290] tmp = isHighWaterSensorDry() [L292] COND TRUE \read(tmp) [L293] tmp___0 = 0 [L297] retValue_acc = tmp___0 [L298] return (retValue_acc); [L174] tmp = isHighWaterLevel() [L176] COND FALSE !(\read(tmp)) [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); [L477] tmp = isMethaneLevelCritical() [L479] COND FALSE !(\read(tmp)) [L495] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...