./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer --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 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 11:02:51,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:02:51,872 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:02:51,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:02:51,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:02:51,879 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:02:51,880 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:02:51,881 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:02:51,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:02:51,882 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:02:51,882 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:02:51,883 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:02:51,883 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:02:51,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:02:51,884 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:02:51,885 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:02:51,885 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:02:51,886 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:02:51,888 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:02:51,889 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:02:51,889 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:02:51,890 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:02:51,892 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:02:51,893 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:02:51,893 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:02:51,893 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:02:51,894 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:02:51,894 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:02:51,895 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:02:51,895 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:02:51,896 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:02:51,896 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:02:51,896 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:02:51,896 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:02:51,897 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:02:51,897 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:02:51,898 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 11:02:51,906 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:02:51,906 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:02:51,907 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:02:51,907 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:02:51,907 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:02:51,908 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:02:51,908 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:02:51,908 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:02:51,908 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:02:51,908 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:02:51,908 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:02:51,908 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:02:51,909 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:02:51,909 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:02:51,909 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:02:51,909 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:02:51,909 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:02:51,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:02:51,910 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:02:51,910 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:02:51,910 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:02:51,910 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:02:51,910 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:02:51,910 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:02:51,910 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:02:51,911 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:02:51,911 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:02:51,911 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:02:51,911 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:02:51,911 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:02:51,911 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:02:51,912 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:02:51,912 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer 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 -> 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 [2018-11-18 11:02:51,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:02:51,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:02:51,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:02:51,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:02:51,953 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:02:51,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c [2018-11-18 11:02:52,001 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/data/fede48643/34caa8a474f64935b5bec86969a0dafe/FLAG5955764a0 [2018-11-18 11:02:52,367 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:02:52,368 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c [2018-11-18 11:02:52,376 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/data/fede48643/34caa8a474f64935b5bec86969a0dafe/FLAG5955764a0 [2018-11-18 11:02:52,390 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/data/fede48643/34caa8a474f64935b5bec86969a0dafe [2018-11-18 11:02:52,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:02:52,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:02:52,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:02:52,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:02:52,399 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:02:52,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52, skipping insertion in model container [2018-11-18 11:02:52,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:02:52,448 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:02:52,670 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:02:52,680 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:02:52,797 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:02:52,816 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:02:52,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52 WrapperNode [2018-11-18 11:02:52,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:02:52,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:02:52,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:02:52,818 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:02:52,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:02:52,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:02:52,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:02:52,876 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:02:52,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... [2018-11-18 11:02:52,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:02:52,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:02:52,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:02:52,914 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:02:52,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:02:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:02:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:02:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:02:53,566 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:02:53,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:53 BoogieIcfgContainer [2018-11-18 11:02:53,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:02:53,567 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:02:53,567 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:02:53,570 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:02:53,571 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:02:53,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:02:52" (1/3) ... [2018-11-18 11:02:53,572 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d8e313d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:02:53, skipping insertion in model container [2018-11-18 11:02:53,572 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:02:53,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:52" (2/3) ... [2018-11-18 11:02:53,572 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d8e313d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:02:53, skipping insertion in model container [2018-11-18 11:02:53,572 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:02:53,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:53" (3/3) ... [2018-11-18 11:02:53,573 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product49_false-unreach-call_false-termination.cil.c [2018-11-18 11:02:53,608 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:02:53,609 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:02:53,609 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:02:53,609 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:02:53,609 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:02:53,609 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:02:53,609 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:02:53,609 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:02:53,609 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:02:53,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states. [2018-11-18 11:02:53,646 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2018-11-18 11:02:53,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:02:53,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:02:53,652 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:53,652 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:53,652 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:02:53,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states. [2018-11-18 11:02:53,658 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2018-11-18 11:02:53,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:02:53,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:02:53,659 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:53,659 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:53,664 INFO L794 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 110];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 44];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 80];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 117];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 109];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 112];#memory_int := #memory_int[#t~string48.base,5 + #t~string48.offset := 58];#memory_int := #memory_int[#t~string48.base,6 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 110];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 41];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 32];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 10];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 21#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret2, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 79#L829true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 14#L822true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 104#L837true main_#t~ret2 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret2;havoc main_#t~ret2; 158#L159true assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 117#L132true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 65#L752-3true [2018-11-18 11:02:53,664 INFO L796 eck$LassoCheckResult]: Loop: 65#L752-3true assume true; 84#L752-1true assume !false; 24#L753true assume test_~splverifierCounter~0 < 4; 115#L754true test_~tmp~9 := test_#t~nondet59;havoc test_#t~nondet59; 143#L762true assume !(0 != test_~tmp~9); 120#L762-2true test_~tmp___0~3 := test_#t~nondet60;havoc test_#t~nondet60; 29#L772true assume !(0 != test_~tmp___0~3); 33#L772-2true test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 86#L782true assume 0 != test_~tmp___2~0; 58#L788-2true assume { :begin_inline_timeShift } true; 23#L552true assume !(0 != ~pumpRunning~0); 25#L552-2true assume !(0 != ~systemActive~0); 87#L559-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 130#L886true __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 17#L51true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 12#L51-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 145#L569true assume { :end_inline_timeShift } true; 65#L752-3true [2018-11-18 11:02:53,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:53,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 11:02:53,669 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:53,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:53,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:53,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:53,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:53,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:53,912 INFO L82 PathProgramCache]: Analyzing trace with hash -450047981, now seen corresponding path program 1 times [2018-11-18 11:02:53,912 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:53,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:53,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:53,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:53,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:53,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:53,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1381729585, now seen corresponding path program 1 times [2018-11-18 11:02:53,925 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:53,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:53,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:53,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:53,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:02:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:02:54,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:02:54,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:02:54,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:02:54,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:02:54,145 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 6 states. [2018-11-18 11:02:54,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:02:54,302 INFO L93 Difference]: Finished difference Result 161 states and 210 transitions. [2018-11-18 11:02:54,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:02:54,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 210 transitions. [2018-11-18 11:02:54,306 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2018-11-18 11:02:54,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 151 states and 200 transitions. [2018-11-18 11:02:54,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2018-11-18 11:02:54,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2018-11-18 11:02:54,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 200 transitions. [2018-11-18 11:02:54,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:02:54,313 INFO L705 BuchiCegarLoop]: Abstraction has 151 states and 200 transitions. [2018-11-18 11:02:54,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 200 transitions. [2018-11-18 11:02:54,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-11-18 11:02:54,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-11-18 11:02:54,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 200 transitions. [2018-11-18 11:02:54,342 INFO L728 BuchiCegarLoop]: Abstraction has 151 states and 200 transitions. [2018-11-18 11:02:54,343 INFO L608 BuchiCegarLoop]: Abstraction has 151 states and 200 transitions. [2018-11-18 11:02:54,343 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:02:54,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 151 states and 200 transitions. [2018-11-18 11:02:54,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2018-11-18 11:02:54,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:02:54,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:02:54,346 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:54,346 INFO L867 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] [2018-11-18 11:02:54,346 INFO L794 eck$LassoCheckResult]: Stem: 469#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 110];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 44];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 80];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 117];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 109];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 112];#memory_int := #memory_int[#t~string48.base,5 + #t~string48.offset := 58];#memory_int := #memory_int[#t~string48.base,6 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 110];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 41];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 32];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 10];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 381#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret2, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 382#L829 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 369#L822 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 370#L837 main_#t~ret2 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret2;havoc main_#t~ret2; 464#L159 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 472#L132 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 437#L752-3 [2018-11-18 11:02:54,346 INFO L796 eck$LassoCheckResult]: Loop: 437#L752-3 assume true; 438#L752-1 assume !false; 387#L753 assume test_~splverifierCounter~0 < 4; 388#L754 test_~tmp~9 := test_#t~nondet59;havoc test_#t~nondet59; 470#L762 assume !(0 != test_~tmp~9); 475#L762-2 test_~tmp___0~3 := test_#t~nondet60;havoc test_#t~nondet60; 394#L772 assume !(0 != test_~tmp___0~3); 396#L772-2 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 402#L782 assume 0 != test_~tmp___2~0; 424#L788-2 assume { :begin_inline_timeShift } true; 384#L552 assume !(0 != ~pumpRunning~0); 385#L552-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 357#L610 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 358#L584-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 430#L576-3 assume { :end_inline_processEnvironment__wrappee__base } true; 426#L584-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 367#L610-1 assume { :end_inline_processEnvironment } true; 368#L559-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 449#L886 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 372#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 365#L51-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 366#L569 assume { :end_inline_timeShift } true; 437#L752-3 [2018-11-18 11:02:54,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:54,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 11:02:54,347 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:54,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:54,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:54,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:54,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:54,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1123040843, now seen corresponding path program 1 times [2018-11-18 11:02:54,434 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:54,434 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:54,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,435 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:02:54,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:02:54,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:02:54,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:02:54,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:02:54,452 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:02:54,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:02:54,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:02:54,453 INFO L87 Difference]: Start difference. First operand 151 states and 200 transitions. cyclomatic complexity: 51 Second operand 3 states. [2018-11-18 11:02:54,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:02:54,543 INFO L93 Difference]: Finished difference Result 208 states and 264 transitions. [2018-11-18 11:02:54,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:02:54,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 208 states and 264 transitions. [2018-11-18 11:02:54,546 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2018-11-18 11:02:54,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 208 states to 208 states and 264 transitions. [2018-11-18 11:02:54,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 208 [2018-11-18 11:02:54,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 208 [2018-11-18 11:02:54,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 264 transitions. [2018-11-18 11:02:54,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:02:54,550 INFO L705 BuchiCegarLoop]: Abstraction has 208 states and 264 transitions. [2018-11-18 11:02:54,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 264 transitions. [2018-11-18 11:02:54,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2018-11-18 11:02:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-11-18 11:02:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 264 transitions. [2018-11-18 11:02:54,559 INFO L728 BuchiCegarLoop]: Abstraction has 208 states and 264 transitions. [2018-11-18 11:02:54,559 INFO L608 BuchiCegarLoop]: Abstraction has 208 states and 264 transitions. [2018-11-18 11:02:54,559 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 11:02:54,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 208 states and 264 transitions. [2018-11-18 11:02:54,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2018-11-18 11:02:54,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:02:54,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:02:54,562 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:54,563 INFO L867 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, 1, 1, 1] [2018-11-18 11:02:54,563 INFO L794 eck$LassoCheckResult]: Stem: 840#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 110];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 44];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 80];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 117];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 109];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 112];#memory_int := #memory_int[#t~string48.base,5 + #t~string48.offset := 58];#memory_int := #memory_int[#t~string48.base,6 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 110];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 41];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 32];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 10];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 743#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret2, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 744#L829 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 733#L822 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 734#L837 main_#t~ret2 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret2;havoc main_#t~ret2; 833#L159 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 843#L132 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 802#L752-3 [2018-11-18 11:02:54,563 INFO L796 eck$LassoCheckResult]: Loop: 802#L752-3 assume true; 803#L752-1 assume !false; 749#L753 assume test_~splverifierCounter~0 < 4; 750#L754 test_~tmp~9 := test_#t~nondet59;havoc test_#t~nondet59; 841#L762 assume !(0 != test_~tmp~9); 846#L762-2 test_~tmp___0~3 := test_#t~nondet60;havoc test_#t~nondet60; 755#L772 assume !(0 != test_~tmp___0~3); 757#L772-2 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 764#L782 assume 0 != test_~tmp___2~0; 788#L788-2 assume { :begin_inline_timeShift } true; 747#L552 assume !(0 != ~pumpRunning~0); 748#L552-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 719#L610 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 720#L584-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret57, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 769#L926-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 770#L931-1 isHighWaterLevel_#t~ret57 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret57;havoc isHighWaterLevel_#t~ret57; 804#L712-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 863#L712-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 847#L718-1 processEnvironment__wrappee__highWaterSensor_#t~ret38 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret38;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38; 848#L588-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 789#L576-2 assume { :end_inline_processEnvironment__wrappee__base } true; 790#L584-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 728#L610-1 assume { :end_inline_processEnvironment } true; 729#L559-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 816#L886 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 736#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 730#L51-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 731#L569 assume { :end_inline_timeShift } true; 802#L752-3 [2018-11-18 11:02:54,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:54,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 11:02:54,564 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:54,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:54,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:54,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:54,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:54,636 INFO L82 PathProgramCache]: Analyzing trace with hash -515300083, now seen corresponding path program 1 times [2018-11-18 11:02:54,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:54,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:54,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,637 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:02:54,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:54,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:54,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1766282031, now seen corresponding path program 1 times [2018-11-18 11:02:54,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:54,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:54,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:54,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:54,837 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2018-11-18 11:04:32,523 WARN L180 SmtUtils]: Spent 1.63 m on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 11:05:13,542 WARN L180 SmtUtils]: Spent 41.02 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 11:05:13,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:05:13 BoogieIcfgContainer [2018-11-18 11:05:13,607 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:05:13,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:05:13,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:05:13,607 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:05:13,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:53" (3/4) ... [2018-11-18 11:05:13,610 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 11:05:13,654 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1325cabd-78eb-4cce-9295-f688f213ef1c/bin-2019/uautomizer/witness.graphml [2018-11-18 11:05:13,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:05:13,655 INFO L168 Benchmark]: Toolchain (without parser) took 141261.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 955.5 MB in the beginning and 878.8 MB in the end (delta: 76.7 MB). Peak memory consumption was 250.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:05:13,656 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:05:13,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:05:13,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.29 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:05:13,657 INFO L168 Benchmark]: Boogie Preprocessor took 37.46 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:05:13,657 INFO L168 Benchmark]: RCFGBuilder took 653.13 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: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:05:13,658 INFO L168 Benchmark]: BuchiAutomizer took 140039.40 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.6 MB). Free memory was 1.0 GB in the beginning and 883.5 MB in the end (delta: 166.4 MB). Peak memory consumption was 207.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:05:13,658 INFO L168 Benchmark]: Witness Printer took 47.63 ms. Allocated memory is still 1.2 GB. Free memory was 883.5 MB in the beginning and 878.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:05:13,660 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 421.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.29 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.46 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 653.13 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: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 140039.40 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.6 MB). Free memory was 1.0 GB in the beginning and 883.5 MB in the end (delta: 166.4 MB). Peak memory consumption was 207.3 MB. Max. memory is 11.5 GB. * Witness Printer took 47.63 ms. Allocated memory is still 1.2 GB. Free memory was 883.5 MB in the beginning and 878.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 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 6 locations. The remainder module has 208 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 139.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 139.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 208 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 407 SDtfs, 946 SDslu, 101 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 752]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, retValue_acc=0, "Off"=0, "Off"=38, "OK"=26, "On"=0, "Pump(System:"=0, "\n"=33, methaneLevelCritical=0, tmp___0=0, "Env(Water:%i"=0, "CRIT"=0, "i > 0 && i <= this->argsCount"=14, ",Meth:"=0, tmp___1=0, tmp=0, retValue_acc=0, "__utac__get_this_arg"=20, tmp___0=0, cleanupTimeShifts=4, "libacc.c"=24, "libacc.c"=18, "libacc.c"=15, "Pump(System:"=23, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ec942dc=0, "On"=36, tmp=0, "libacc.c"=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26222c32=0, NULL=0, systemActive=1, waterLevel=1, "CRIT"=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a81cd59=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, \result=0, "On"=39, ") "=0, "Off"=0, "On"=0, "\n"=0, \result=1, head=0, pumpRunning=0, \result=0, "Off"=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aec43e8=0, "i > 0 && i <= this->argsCount"=8, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f9b75c3=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_argtype"=22, tmp=0, \result=1, ",Pump:"=37, ",Meth:"=29, retValue_acc=1, "libacc.c"=11, "OK"=0, ")"=0, tmp=1, tmp___0=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e344765=0, tmp___2=157, "i > 0 && i <= this->argsCount"=16, "__utac__get_this_arg"=17, splverifierCounter=0, \result=0, ")"=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@483e4156=0, head=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=19, "i > 0 && i <= this->argsCount"=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1778f3b2=0, "__utac__get_this_argtype"=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@406f844c=157, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11521003=0, "libacc.c"=0, ") "=34, ",Pump:"=0, "Env(Water:%i"=31} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 752]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L470] FCALL "i > 0 && i <= this->argsCount" [L470] FCALL "libacc.c" [L471] FCALL "__utac__get_this_arg" [L477] FCALL "i > 0 && i <= this->argsCount" [L477] FCALL "libacc.c" [L478] FCALL "__utac__get_this_arg" [L516] FCALL "i > 0 && i <= this->argsCount" [L516] FCALL "libacc.c" [L517] FCALL "__utac__get_this_argtype" [L523] FCALL "i > 0 && i <= this->argsCount" [L523] FCALL "libacc.c" [L524] FCALL "__utac__get_this_argtype" [L672] FCALL "Pump(System:" [L676] FCALL "On" [L680] FCALL "Off" [L684] FCALL ",Pump:" [L688] FCALL "On" [L692] FCALL "Off" [L696] FCALL ") " [L698] FCALL "\n" [L895] FCALL "Env(Water:%i" [L896] FCALL ",Meth:" [L900] FCALL "CRIT" [L904] FCALL "OK" [L908] FCALL ")" [L69] int cleanupTimeShifts = 4; [L545] int pumpRunning = 0; [L546] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L150] int retValue_acc ; [L151] int tmp ; [L155] FCALL select_helpers() [L156] FCALL select_features() [L157] CALL, EXPR valid_product() [L833] int retValue_acc ; [L836] retValue_acc = 1 [L837] RET return (retValue_acc); [L157] EXPR valid_product() [L157] tmp = valid_product() [L159] COND TRUE \read(tmp) [L161] FCALL setup() [L162] CALL runTest() [L141] CALL test() [L743] int splverifierCounter ; [L744] int tmp ; [L745] int tmp___0 ; [L746] int tmp___1 ; [L747] int tmp___2 ; [L750] splverifierCounter = 0 Loop: [L752] COND TRUE 1 [L754] COND TRUE splverifierCounter < 4 [L760] tmp = __VERIFIER_nondet_int() [L762] COND FALSE !(\read(tmp)) [L770] tmp___0 = __VERIFIER_nondet_int() [L772] COND FALSE !(\read(tmp___0)) [L780] tmp___2 = __VERIFIER_nondet_int() [L782] COND TRUE \read(tmp___2) [L795] CALL timeShift() [L552] COND FALSE !(\read(pumpRunning)) [L559] COND TRUE \read(systemActive) [L561] CALL processEnvironment() [L607] int tmp ; [L610] COND FALSE !(\read(pumpRunning)) [L625] CALL processEnvironment__wrappee__highWaterSensor() [L581] int tmp ; [L584] COND TRUE ! pumpRunning [L586] CALL, EXPR isHighWaterLevel() [L704] int retValue_acc ; [L705] int tmp ; [L706] int tmp___0 ; [L710] CALL, EXPR isHighWaterSensorDry() [L923] int retValue_acc ; [L926] COND TRUE waterLevel < 2 [L927] retValue_acc = 1 [L928] RET return (retValue_acc); [L710] EXPR isHighWaterSensorDry() [L710] tmp = isHighWaterSensorDry() [L712] COND TRUE \read(tmp) [L713] tmp___0 = 0 [L717] retValue_acc = tmp___0 [L718] RET return (retValue_acc); [L586] EXPR isHighWaterLevel() [L586] tmp = isHighWaterLevel() [L588] COND FALSE !(\read(tmp)) [L594] RET, FCALL processEnvironment__wrappee__base() [L625] RET processEnvironment__wrappee__highWaterSensor() [L561] processEnvironment() [L567] CALL __utac_acc__Specification1_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR isMethaneLevelCritical() [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] RET return (retValue_acc); [L49] EXPR isMethaneLevelCritical() [L49] tmp = isMethaneLevelCritical() [L51] COND FALSE, RET !(\read(tmp)) [L567] RET __utac_acc__Specification1_spec__1() [L795] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...