./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product40.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_spec5_product40.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 420052417c34af57247f22c0bc8935a6e484860c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:13:55,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:13:55,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:13:55,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:13:55,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:13:55,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:13:55,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:13:55,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:13:55,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:13:55,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:13:55,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:13:55,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:13:55,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:13:55,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:13:55,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:13:55,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:13:55,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:13:55,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:13:55,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:13:55,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:13:55,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:13:55,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:13:55,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:13:55,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:13:55,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:13:55,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:13:55,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:13:55,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:13:55,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:13:55,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:13:55,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:13:55,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:13:55,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:13:55,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:13:55,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:13:55,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:13:55,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:13:55,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:13:55,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:13:55,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:13:55,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:13:55,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:13:55,705 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:13:55,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:13:55,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:13:55,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:13:55,707 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:13:55,707 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:13:55,708 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:13:55,708 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:13:55,708 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:13:55,708 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:13:55,709 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:13:55,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:13:55,709 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:13:55,710 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:13:55,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:13:55,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:13:55,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:13:55,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:13:55,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:13:55,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:13:55,713 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:13:55,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:13:55,713 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:13:55,713 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:13:55,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:13:55,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:13:55,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:13:55,714 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:13:55,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:13:55,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:13:55,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:13:55,715 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:13:55,717 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:13:55,717 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 -> 420052417c34af57247f22c0bc8935a6e484860c [2019-11-28 21:13:56,007 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:13:56,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:13:56,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:13:56,024 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:13:56,025 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:13:56,026 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2019-11-28 21:13:56,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f8fd0a0/8e50bf09d4d74b2bb06f67b64eb7f152/FLAGf192a51d6 [2019-11-28 21:13:56,573 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:13:56,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2019-11-28 21:13:56,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f8fd0a0/8e50bf09d4d74b2bb06f67b64eb7f152/FLAGf192a51d6 [2019-11-28 21:13:56,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f8fd0a0/8e50bf09d4d74b2bb06f67b64eb7f152 [2019-11-28 21:13:56,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:13:56,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:13:56,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:13:56,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:13:56,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:13:56,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:13:56" (1/1) ... [2019-11-28 21:13:56,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500e6159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:56, skipping insertion in model container [2019-11-28 21:13:56,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:13:56" (1/1) ... [2019-11-28 21:13:56,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:13:56,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:13:57,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:13:57,358 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:13:57,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:13:57,473 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:13:57,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57 WrapperNode [2019-11-28 21:13:57,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:13:57,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:13:57,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:13:57,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:13:57,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (1/1) ... [2019-11-28 21:13:57,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (1/1) ... [2019-11-28 21:13:57,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:13:57,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:13:57,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:13:57,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:13:57,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (1/1) ... [2019-11-28 21:13:57,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (1/1) ... [2019-11-28 21:13:57,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (1/1) ... [2019-11-28 21:13:57,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (1/1) ... [2019-11-28 21:13:57,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (1/1) ... [2019-11-28 21:13:57,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (1/1) ... [2019-11-28 21:13:57,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (1/1) ... [2019-11-28 21:13:57,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:13:57,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:13:57,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:13:57,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:13:57,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (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 21:13:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:13:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:13:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:13:57,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:13:58,475 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:13:58,475 INFO L287 CfgBuilder]: Removed 176 assume(true) statements. [2019-11-28 21:13:58,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:58 BoogieIcfgContainer [2019-11-28 21:13:58,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:13:58,478 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:13:58,478 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:13:58,481 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:13:58,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:58,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:13:56" (1/3) ... [2019-11-28 21:13:58,483 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ab42b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:13:58, skipping insertion in model container [2019-11-28 21:13:58,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:58,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:57" (2/3) ... [2019-11-28 21:13:58,484 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ab42b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:13:58, skipping insertion in model container [2019-11-28 21:13:58,484 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:58,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:58" (3/3) ... [2019-11-28 21:13:58,486 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2019-11-28 21:13:58,532 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:13:58,533 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:13:58,533 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:13:58,533 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:13:58,533 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:13:58,534 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:13:58,534 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:13:58,534 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:13:58,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2019-11-28 21:13:58,585 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-28 21:13:58,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:58,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:58,595 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:58,595 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:58,595 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:13:58,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2019-11-28 21:13:58,603 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-28 21:13:58,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:58,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:58,605 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:58,605 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:58,610 INFO L794 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 11#L-1true havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 7#L877true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 33#L885true main_#t~ret62 := valid_product_#res;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 53#L832true assume 0 != main_~tmp~8; 36#L805true ~switchedOnBeforeTS~0 := 0; 42#L703true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 75#L724-1true [2019-11-28 21:13:58,611 INFO L796 eck$LassoCheckResult]: Loop: 75#L724-1true assume !false; 19#L271true assume test_~splverifierCounter~0 < 4; 112#L272true test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 121#L280true assume !(0 != test_~tmp~3); 120#L280-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 45#L290true assume !(0 != test_~tmp___0~1); 43#L290-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 102#L300true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 99#L308-1true havoc __utac_acc__Specification5_spec__2_#t~ret59;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 66#L174true __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 74#L713true assume !(0 != ~pumpRunning~0); 116#L63true assume !(0 != ~systemActive~0); 25#L70true havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 17#L965true __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 73#L724true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 75#L724-1true [2019-11-28 21:13:58,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:58,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:13:58,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:58,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838939650] [2019-11-28 21:13:58,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:59,032 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:59,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:59,033 INFO L82 PathProgramCache]: Analyzing trace with hash 676826806, now seen corresponding path program 1 times [2019-11-28 21:13:59,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:59,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461389262] [2019-11-28 21:13:59,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:59,090 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 21:13:59,090 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461389262] [2019-11-28 21:13:59,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:59,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:13:59,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821401829] [2019-11-28 21:13:59,097 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:13:59,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:59,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:13:59,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:13:59,115 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 3 states. [2019-11-28 21:13:59,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:13:59,211 INFO L93 Difference]: Finished difference Result 231 states and 335 transitions. [2019-11-28 21:13:59,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:13:59,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 335 transitions. [2019-11-28 21:13:59,221 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 150 [2019-11-28 21:13:59,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 217 states and 320 transitions. [2019-11-28 21:13:59,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 217 [2019-11-28 21:13:59,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 217 [2019-11-28 21:13:59,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 217 states and 320 transitions. [2019-11-28 21:13:59,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:13:59,234 INFO L688 BuchiCegarLoop]: Abstraction has 217 states and 320 transitions. [2019-11-28 21:13:59,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states and 320 transitions. [2019-11-28 21:13:59,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2019-11-28 21:13:59,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-11-28 21:13:59,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2019-11-28 21:13:59,284 INFO L711 BuchiCegarLoop]: Abstraction has 215 states and 317 transitions. [2019-11-28 21:13:59,284 INFO L591 BuchiCegarLoop]: Abstraction has 215 states and 317 transitions. [2019-11-28 21:13:59,284 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:13:59,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 317 transitions. [2019-11-28 21:13:59,288 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2019-11-28 21:13:59,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:59,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:59,289 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:59,290 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:59,290 INFO L794 eck$LassoCheckResult]: Stem: 480#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 378#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 368#L877 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 369#L885 main_#t~ret62 := valid_product_#res;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 414#L832 assume 0 != main_~tmp~8; 417#L805 ~switchedOnBeforeTS~0 := 0; 418#L703 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 424#L724-1 [2019-11-28 21:13:59,290 INFO L796 eck$LassoCheckResult]: Loop: 424#L724-1 assume !false; 514#L271 assume test_~splverifierCounter~0 < 4; 515#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 556#L280 assume !(0 != test_~tmp~3); 554#L280-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 553#L290 assume !(0 != test_~tmp___0~1); 551#L290-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 550#L300 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 482#L308-1 havoc __utac_acc__Specification5_spec__2_#t~ret59;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 548#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 546#L713 assume !(0 != ~pumpRunning~0); 544#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 542#L121 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 530#L95-1 assume !(0 == ~pumpRunning~0); 528#L70 havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 527#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 521#L724 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 424#L724-1 [2019-11-28 21:13:59,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:59,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:13:59,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:59,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062293225] [2019-11-28 21:13:59,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:59,463 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:59,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:59,465 INFO L82 PathProgramCache]: Analyzing trace with hash -549788339, now seen corresponding path program 1 times [2019-11-28 21:13:59,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:59,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26776318] [2019-11-28 21:13:59,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:59,489 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 21:13:59,490 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26776318] [2019-11-28 21:13:59,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:59,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:13:59,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946886808] [2019-11-28 21:13:59,491 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:13:59,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:59,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:13:59,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:13:59,493 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. cyclomatic complexity: 105 Second operand 3 states. [2019-11-28 21:13:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:13:59,625 INFO L93 Difference]: Finished difference Result 314 states and 439 transitions. [2019-11-28 21:13:59,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:13:59,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 439 transitions. [2019-11-28 21:13:59,631 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2019-11-28 21:13:59,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 314 states and 439 transitions. [2019-11-28 21:13:59,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 314 [2019-11-28 21:13:59,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 314 [2019-11-28 21:13:59,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 314 states and 439 transitions. [2019-11-28 21:13:59,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:13:59,638 INFO L688 BuchiCegarLoop]: Abstraction has 314 states and 439 transitions. [2019-11-28 21:13:59,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states and 439 transitions. [2019-11-28 21:13:59,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2019-11-28 21:13:59,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2019-11-28 21:13:59,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 439 transitions. [2019-11-28 21:13:59,657 INFO L711 BuchiCegarLoop]: Abstraction has 314 states and 439 transitions. [2019-11-28 21:13:59,657 INFO L591 BuchiCegarLoop]: Abstraction has 314 states and 439 transitions. [2019-11-28 21:13:59,657 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:13:59,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 439 transitions. [2019-11-28 21:13:59,660 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2019-11-28 21:13:59,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:59,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:59,662 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:59,662 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:59,663 INFO L794 eck$LassoCheckResult]: Stem: 1024#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 912#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 903#L877 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 904#L885 main_#t~ret62 := valid_product_#res;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 950#L832 assume 0 != main_~tmp~8; 953#L805 ~switchedOnBeforeTS~0 := 0; 954#L703 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 960#L724-1 [2019-11-28 21:13:59,663 INFO L796 eck$LassoCheckResult]: Loop: 960#L724-1 assume !false; 1094#L271 assume test_~splverifierCounter~0 < 4; 1057#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 1058#L280 assume !(0 != test_~tmp~3); 1052#L280-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 1053#L290 assume !(0 != test_~tmp___0~1); 1047#L290-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 1048#L300 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1021#L308-1 havoc __utac_acc__Specification5_spec__2_#t~ret59;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 991#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 992#L713 assume !(0 != ~pumpRunning~0); 1002#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1037#L121 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1112#L95-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1111#L973-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1110#L978-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1109#L223-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 996#L223-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 994#L229-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 995#L99-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 946#L70 havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1066#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 1062#L724 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 960#L724-1 [2019-11-28 21:13:59,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:59,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:13:59,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:59,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24328142] [2019-11-28 21:13:59,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:59,809 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:59,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:59,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1721068121, now seen corresponding path program 1 times [2019-11-28 21:13:59,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:59,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088787176] [2019-11-28 21:13:59,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:59,883 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 21:13:59,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088787176] [2019-11-28 21:13:59,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:59,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 21:13:59,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483416240] [2019-11-28 21:13:59,885 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:13:59,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:59,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:13:59,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:13:59,886 INFO L87 Difference]: Start difference. First operand 314 states and 439 transitions. cyclomatic complexity: 128 Second operand 5 states. [2019-11-28 21:14:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:00,171 INFO L93 Difference]: Finished difference Result 1319 states and 1859 transitions. [2019-11-28 21:14:00,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:14:00,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1319 states and 1859 transitions. [2019-11-28 21:14:00,186 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 926 [2019-11-28 21:14:00,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1319 states to 1319 states and 1859 transitions. [2019-11-28 21:14:00,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1319 [2019-11-28 21:14:00,200 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1319 [2019-11-28 21:14:00,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1319 states and 1859 transitions. [2019-11-28 21:14:00,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:00,204 INFO L688 BuchiCegarLoop]: Abstraction has 1319 states and 1859 transitions. [2019-11-28 21:14:00,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states and 1859 transitions. [2019-11-28 21:14:00,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 615. [2019-11-28 21:14:00,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-11-28 21:14:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 847 transitions. [2019-11-28 21:14:00,240 INFO L711 BuchiCegarLoop]: Abstraction has 615 states and 847 transitions. [2019-11-28 21:14:00,240 INFO L591 BuchiCegarLoop]: Abstraction has 615 states and 847 transitions. [2019-11-28 21:14:00,240 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:14:00,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 615 states and 847 transitions. [2019-11-28 21:14:00,245 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 442 [2019-11-28 21:14:00,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:00,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:00,249 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:00,249 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:00,249 INFO L794 eck$LassoCheckResult]: Stem: 2683#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2567#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 2555#L877 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 2556#L885 main_#t~ret62 := valid_product_#res;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 2608#L832 assume 0 != main_~tmp~8; 2612#L805 ~switchedOnBeforeTS~0 := 0; 2613#L703 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2591#L724-1 [2019-11-28 21:14:00,251 INFO L796 eck$LassoCheckResult]: Loop: 2591#L724-1 assume !false; 2664#L271 assume test_~splverifierCounter~0 < 4; 3022#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 3018#L280 assume !(0 != test_~tmp~3); 3012#L280-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 3055#L290 assume !(0 != test_~tmp___0~1); 3050#L290-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 2685#L300 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2684#L308-1 havoc __utac_acc__Specification5_spec__2_#t~ret59;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2652#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 2653#L713 assume !(0 != ~pumpRunning~0); 2662#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2690#L121 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2562#L95-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 2563#L973-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 2597#L978-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 3028#L223-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 3024#L223-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2654#L229-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 2655#L99-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2592#L70 havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2593#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 2660#L724 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2661#L174-1 __utac_acc__Specification5_spec__3_#t~ret61 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 2589#L728 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 2591#L724-1 [2019-11-28 21:14:00,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:00,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 21:14:00,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:00,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018671284] [2019-11-28 21:14:00,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:00,350 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:00,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:00,350 INFO L82 PathProgramCache]: Analyzing trace with hash 384043252, now seen corresponding path program 1 times [2019-11-28 21:14:00,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:00,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744977697] [2019-11-28 21:14:00,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:00,369 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:00,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:00,370 INFO L82 PathProgramCache]: Analyzing trace with hash 320617070, now seen corresponding path program 1 times [2019-11-28 21:14:00,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:00,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505205275] [2019-11-28 21:14:00,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:00,451 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:00,627 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-28 21:14:28,882 WARN L192 SmtUtils]: Spent 28.16 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:14:43,008 WARN L192 SmtUtils]: Spent 14.12 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:14:43,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:14:43 BoogieIcfgContainer [2019-11-28 21:14:43,165 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:14:43,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:14:43,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:14:43,168 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:14:43,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:58" (3/4) ... [2019-11-28 21:14:43,172 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:14:43,263 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:14:43,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:14:43,265 INFO L168 Benchmark]: Toolchain (without parser) took 46414.21 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 304.6 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -194.1 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:43,266 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:14:43,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:43,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.35 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:43,268 INFO L168 Benchmark]: Boogie Preprocessor took 42.47 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 21:14:43,268 INFO L168 Benchmark]: RCFGBuilder took 866.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:43,269 INFO L168 Benchmark]: BuchiAutomizer took 44687.28 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -123.0 MB). Peak memory consumption was 385.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:43,270 INFO L168 Benchmark]: Witness Printer took 95.86 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:43,273 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 622.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.35 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.47 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 866.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44687.28 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -123.0 MB). Peak memory consumption was 385.6 MB. Max. memory is 11.5 GB. * Witness Printer took 95.86 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 615 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 43.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 706 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 615 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 615 SDtfs, 1011 SDslu, 1003 SDs, 0 SdLazy, 178 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 270]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=225} State at position 1 is {NULL=0, NULL=0, NULL=5186, NULL=1170, NULL=0, retValue_acc=1, NULL=225, NULL=5185, NULL=1168, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=5180, methaneLevelCritical=0, NULL=5178, tmp=1, tmp___0=0, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61a05ff0=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=1166, NULL=5183, NULL=228, \result=0, NULL=1167, NULL=0, systemActive=1, waterLevel=1, NULL=5179, \result=1, NULL=0, NULL=0, NULL=231, \result=0, NULL=0, NULL=227, NULL=5182, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=5184, \result=1, NULL=1165, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56a59028=0, \result=0, NULL=230, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d822051=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56be361a=53, \result=1, NULL=1169, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60800f8b=0, retValue_acc=1, NULL=0, NULL=0, tmp=1, tmp___2=53, retValue_acc=1, tmp___0=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@714dcc4c=0, NULL=1171, NULL=238, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44b6fdb7=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a19e16b=0, head=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a873dc4=0, NULL=5187, NULL=5188, NULL=226, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a83f044=0, NULL=5181, NULL=229, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73432820=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L498] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L697] int switchedOnBeforeTS ; [L746] int cleanupTimeShifts = 4; [L890] int waterLevel = 1; [L891] int methaneLevelCritical = 0; [L823] int retValue_acc ; [L824] int tmp ; [L881] int retValue_acc ; [L884] retValue_acc = 1 [L885] return (retValue_acc); [L830] tmp = valid_product() [L832] COND TRUE \read(tmp) [L702] switchedOnBeforeTS = 0 [L261] int splverifierCounter ; [L262] int tmp ; [L263] int tmp___0 ; [L264] int tmp___1 ; [L265] int tmp___2 ; [L268] splverifierCounter = 0 Loop: [L270] COND TRUE 1 [L272] COND TRUE splverifierCounter < 4 [L278] tmp = __VERIFIER_nondet_int() [L280] COND FALSE !(\read(tmp)) [L288] tmp___0 = __VERIFIER_nondet_int() [L290] COND FALSE !(\read(tmp___0)) [L298] tmp___2 = __VERIFIER_nondet_int() [L300] COND TRUE \read(tmp___2) [L252] systemActive = 1 [L170] int retValue_acc ; [L173] retValue_acc = pumpRunning [L174] return (retValue_acc); [L711] switchedOnBeforeTS = isPumpRunning() [L63] COND FALSE !(\read(pumpRunning)) [L70] COND TRUE \read(systemActive) [L118] int tmp ; [L121] COND FALSE !(\read(pumpRunning)) [L92] int tmp ; [L95] COND TRUE ! pumpRunning [L215] int retValue_acc ; [L216] int tmp ; [L217] int tmp___0 ; [L970] int retValue_acc ; [L973] COND TRUE waterLevel < 2 [L974] retValue_acc = 1 [L975] return (retValue_acc); [L221] tmp = isHighWaterSensorDry() [L223] COND TRUE \read(tmp) [L224] tmp___0 = 0 [L228] retValue_acc = tmp___0 [L229] return (retValue_acc); [L97] tmp = isHighWaterLevel() [L99] COND FALSE !(\read(tmp)) [L717] int tmp ; [L718] int tmp___0 ; [L961] int retValue_acc ; [L964] retValue_acc = waterLevel [L965] return (retValue_acc); [L722] tmp = getWaterLevel() [L724] COND TRUE tmp != 2 [L170] int retValue_acc ; [L173] retValue_acc = pumpRunning [L174] return (retValue_acc); [L726] tmp___0 = isPumpRunning() [L728] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...