./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product24_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_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/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 2802309dbd9334e3c65161de741c9f21c5d465d0 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:49:46,928 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:49:46,931 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:49:46,939 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:49:46,941 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:49:46,942 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:49:46,945 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:49:46,947 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:49:46,949 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:49:46,951 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:49:46,953 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:49:46,953 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:49:46,954 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:49:46,956 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:49:46,963 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:49:46,964 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:49:46,964 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:49:46,965 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:49:46,967 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:49:46,968 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:49:46,969 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:49:46,970 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:49:46,976 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:49:46,976 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:49:46,976 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:49:46,977 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:49:46,978 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:49:46,978 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:49:46,979 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:49:46,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:49:46,980 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:49:46,980 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:49:46,980 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:49:46,981 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:49:46,981 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:49:46,982 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:49:46,985 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 10:49:47,002 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:49:47,003 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:49:47,004 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:49:47,005 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:49:47,005 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:49:47,005 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 10:49:47,006 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 10:49:47,006 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 10:49:47,006 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 10:49:47,006 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 10:49:47,006 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 10:49:47,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:49:47,006 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:49:47,007 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:49:47,007 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:49:47,007 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:49:47,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:49:47,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 10:49:47,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 10:49:47,007 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 10:49:47,008 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:49:47,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:49:47,008 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 10:49:47,008 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:49:47,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 10:49:47,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:49:47,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:49:47,008 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 10:49:47,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:49:47,009 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:49:47,009 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 10:49:47,010 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 10:49:47,010 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_967c63fc-5545-4588-b0b0-8d110a2e41d0/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 -> 2802309dbd9334e3c65161de741c9f21c5d465d0 [2018-11-18 10:49:47,046 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:49:47,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:49:47,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:49:47,060 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:49:47,060 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:49:47,061 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product24_false-unreach-call_false-termination.cil.c [2018-11-18 10:49:47,106 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/data/45fe2abd3/5b00293969884277812b73f3defea24a/FLAG623585a91 [2018-11-18 10:49:47,484 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:49:47,485 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/sv-benchmarks/c/product-lines/minepump_spec3_product24_false-unreach-call_false-termination.cil.c [2018-11-18 10:49:47,494 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/data/45fe2abd3/5b00293969884277812b73f3defea24a/FLAG623585a91 [2018-11-18 10:49:47,871 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/data/45fe2abd3/5b00293969884277812b73f3defea24a [2018-11-18 10:49:47,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:49:47,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:49:47,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:49:47,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:49:47,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:49:47,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:49:47" (1/1) ... [2018-11-18 10:49:47,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f51cc82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:47, skipping insertion in model container [2018-11-18 10:49:47,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:49:47" (1/1) ... [2018-11-18 10:49:47,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:49:47,932 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:49:48,136 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:49:48,153 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:49:48,350 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:49:48,384 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:49:48,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48 WrapperNode [2018-11-18 10:49:48,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:49:48,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:49:48,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:49:48,385 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:49:48,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... [2018-11-18 10:49:48,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... [2018-11-18 10:49:48,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:49:48,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:49:48,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:49:48,459 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:49:48,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... [2018-11-18 10:49:48,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... [2018-11-18 10:49:48,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... [2018-11-18 10:49:48,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... [2018-11-18 10:49:48,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... [2018-11-18 10:49:48,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... [2018-11-18 10:49:48,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... [2018-11-18 10:49:48,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:49:48,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:49:48,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:49:48,523 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:49:48,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/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 10:49:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:49:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:49:48,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:49:49,450 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:49:49,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:49:49 BoogieIcfgContainer [2018-11-18 10:49:49,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:49:49,451 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 10:49:49,451 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 10:49:49,454 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 10:49:49,454 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:49:49,455 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 10:49:47" (1/3) ... [2018-11-18 10:49:49,455 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e8dbb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:49:49, skipping insertion in model container [2018-11-18 10:49:49,456 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:49:49,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:48" (2/3) ... [2018-11-18 10:49:49,456 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e8dbb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:49:49, skipping insertion in model container [2018-11-18 10:49:49,456 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:49:49,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:49:49" (3/3) ... [2018-11-18 10:49:49,457 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product24_false-unreach-call_false-termination.cil.c [2018-11-18 10:49:49,494 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:49:49,494 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 10:49:49,494 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 10:49:49,494 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 10:49:49,494 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:49:49,494 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:49:49,495 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 10:49:49,495 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:49:49,495 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 10:49:49,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 163 states. [2018-11-18 10:49:49,535 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2018-11-18 10:49:49,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:49:49,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:49:49,543 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:49:49,543 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:49:49,543 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 10:49:49,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 163 states. [2018-11-18 10:49:49,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2018-11-18 10:49:49,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:49:49,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:49:49,552 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:49:49,552 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:49:49,557 INFO L794 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(30);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(9);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(21);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(30);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(9);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(21);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(25);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 15#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 53#L945true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 156#L938true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 58#L953true main_#t~ret27 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret27;havoc main_#t~ret27; 127#L454true assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 29#L428true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;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; 107#L275-3true [2018-11-18 10:49:49,557 INFO L796 eck$LassoCheckResult]: Loop: 107#L275-3true assume true; 113#L275-1true assume !false; 47#L276true assume test_~splverifierCounter~0 < 4; 18#L277true test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 9#L285true assume !(0 != test_~tmp~3); 3#L285-2true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 67#L295true assume !(0 != test_~tmp___0~1); 61#L295-2true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 149#L305true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 163#L258true assume { :end_inline_startSystem } true; 155#L313-2true assume { :begin_inline_timeShift } true; 165#L68true assume !(0 != ~pumpRunning~0); 164#L68-2true assume !(0 != ~systemActive~0); 74#L75-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 7#L877-1true __utac_acc__Specification3_spec__1_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 110#L344true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 77#L350-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 147#L85true assume { :end_inline_timeShift } true; 107#L275-3true [2018-11-18 10:49:49,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:49:49,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 10:49:49,565 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:49:49,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:49:49,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:49,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:49:49,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:49,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:49:49,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1523227771, now seen corresponding path program 1 times [2018-11-18 10:49:49,752 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:49:49,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:49:49,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:49,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:49:49,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:49,809 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 10:49:49,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:49:49,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:49:49,814 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 10:49:49,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:49:49,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:49:49,825 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 3 states. [2018-11-18 10:49:49,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:49:49,900 INFO L93 Difference]: Finished difference Result 311 states and 403 transitions. [2018-11-18 10:49:49,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:49:49,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 311 states and 403 transitions. [2018-11-18 10:49:49,906 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 204 [2018-11-18 10:49:49,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 311 states to 291 states and 382 transitions. [2018-11-18 10:49:49,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 291 [2018-11-18 10:49:49,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 291 [2018-11-18 10:49:49,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 291 states and 382 transitions. [2018-11-18 10:49:49,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:49:49,915 INFO L705 BuchiCegarLoop]: Abstraction has 291 states and 382 transitions. [2018-11-18 10:49:49,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states and 382 transitions. [2018-11-18 10:49:49,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 288. [2018-11-18 10:49:49,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2018-11-18 10:49:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 378 transitions. [2018-11-18 10:49:49,944 INFO L728 BuchiCegarLoop]: Abstraction has 288 states and 378 transitions. [2018-11-18 10:49:49,944 INFO L608 BuchiCegarLoop]: Abstraction has 288 states and 378 transitions. [2018-11-18 10:49:49,944 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 10:49:49,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 378 transitions. [2018-11-18 10:49:49,947 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 201 [2018-11-18 10:49:49,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:49:49,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:49:49,947 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:49:49,947 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] [2018-11-18 10:49:49,948 INFO L794 eck$LassoCheckResult]: Stem: 632#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(30);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(9);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(21);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(30);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(9);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(21);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(25);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 506#L945 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 554#L938 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 559#L953 main_#t~ret27 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret27;havoc main_#t~ret27; 560#L454 assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 525#L428 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;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; 526#L275-3 [2018-11-18 10:49:49,948 INFO L796 eck$LassoCheckResult]: Loop: 526#L275-3 assume true; 671#L275-1 assume !false; 670#L276 assume test_~splverifierCounter~0 < 4; 510#L277 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 494#L285 assume !(0 != test_~tmp~3); 483#L285-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 484#L295 assume !(0 != test_~tmp___0~1); 564#L295-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 565#L305 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 648#L258 assume { :end_inline_startSystem } true; 654#L313-2 assume { :begin_inline_timeShift } true; 659#L68 assume !(0 != ~pumpRunning~0); 656#L68-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 657#L126 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret0, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 555#L100-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 556#L92-3 assume { :end_inline_processEnvironment__wrappee__base } true; 682#L100-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 679#L126-1 assume { :end_inline_processEnvironment } true; 678#L75-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 677#L877-1 __utac_acc__Specification3_spec__1_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 674#L344 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 673#L350-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 672#L85 assume { :end_inline_timeShift } true; 526#L275-3 [2018-11-18 10:49:49,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:49:49,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 10:49:49,949 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:49:49,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:49:49,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:49,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:49:49,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:50,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:49:50,005 INFO L82 PathProgramCache]: Analyzing trace with hash 896208975, now seen corresponding path program 1 times [2018-11-18 10:49:50,005 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:49:50,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:49:50,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:50,006 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:49:50,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:50,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:49:50,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1158594059, now seen corresponding path program 1 times [2018-11-18 10:49:50,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:49:50,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:49:50,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:50,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:49:50,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:50,112 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 10:49:50,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:49:50,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:49:50,227 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-11-18 10:49:50,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:49:50,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:49:50,295 INFO L87 Difference]: Start difference. First operand 288 states and 378 transitions. cyclomatic complexity: 93 Second operand 5 states. [2018-11-18 10:49:50,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:49:50,918 INFO L93 Difference]: Finished difference Result 1035 states and 1361 transitions. [2018-11-18 10:49:50,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:49:50,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1035 states and 1361 transitions. [2018-11-18 10:49:50,935 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 756 [2018-11-18 10:49:50,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1035 states to 1035 states and 1361 transitions. [2018-11-18 10:49:50,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1035 [2018-11-18 10:49:50,946 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1035 [2018-11-18 10:49:50,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1035 states and 1361 transitions. [2018-11-18 10:49:50,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:49:50,950 INFO L705 BuchiCegarLoop]: Abstraction has 1035 states and 1361 transitions. [2018-11-18 10:49:50,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states and 1361 transitions. [2018-11-18 10:49:50,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 569. [2018-11-18 10:49:50,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2018-11-18 10:49:50,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 741 transitions. [2018-11-18 10:49:50,973 INFO L728 BuchiCegarLoop]: Abstraction has 569 states and 741 transitions. [2018-11-18 10:49:50,973 INFO L608 BuchiCegarLoop]: Abstraction has 569 states and 741 transitions. [2018-11-18 10:49:50,973 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 10:49:50,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 569 states and 741 transitions. [2018-11-18 10:49:50,976 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 402 [2018-11-18 10:49:50,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:49:50,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:49:50,977 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:49:50,977 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] [2018-11-18 10:49:50,978 INFO L794 eck$LassoCheckResult]: Stem: 1986#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(30);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(9);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(21);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(30);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(9);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(21);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(25);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1846#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 1847#L945 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1899#L938 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1906#L953 main_#t~ret27 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret27;havoc main_#t~ret27; 1907#L454 assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 1867#L428 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;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; 1868#L275-3 [2018-11-18 10:49:50,978 INFO L796 eck$LassoCheckResult]: Loop: 1868#L275-3 assume true; 1974#L275-1 assume !false; 1894#L276 assume test_~splverifierCounter~0 < 4; 1851#L277 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 1835#L285 assume !(0 != test_~tmp~3); 1824#L285-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 1825#L295 assume !(0 != test_~tmp___0~1); 1911#L295-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 1912#L305 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2010#L258 assume { :end_inline_startSystem } true; 2017#L313-2 assume { :begin_inline_timeShift } true; 2018#L68 assume !(0 != ~pumpRunning~0); 1944#L68-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2024#L126 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret0, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 2165#L100-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2175#L92-3 assume { :end_inline_processEnvironment__wrappee__base } true; 1897#L100-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1898#L126-1 assume { :end_inline_processEnvironment } true; 1930#L75-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1931#L877-1 __utac_acc__Specification3_spec__1_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 1978#L344 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1916#L909 __utac_acc__Specification3_spec__1_#t~ret25 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 1917#L350 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 2139#L350-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2008#L85 assume { :end_inline_timeShift } true; 1868#L275-3 [2018-11-18 10:49:50,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:49:50,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 10:49:50,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:49:50,979 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:49:50,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:50,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:49:50,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:51,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:49:51,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2030348126, now seen corresponding path program 1 times [2018-11-18 10:49:51,029 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:49:51,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:49:51,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:51,031 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:49:51,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:51,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:49:51,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1013614430, now seen corresponding path program 1 times [2018-11-18 10:49:51,042 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:49:51,042 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:49:51,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:51,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:49:51,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:49:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:51,489 WARN L180 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-11-18 10:49:51,621 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-11-18 10:50:48,433 WARN L180 SmtUtils]: Spent 56.80 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 10:51:17,825 WARN L180 SmtUtils]: Spent 29.39 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 10:51:17,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 10:51:17 BoogieIcfgContainer [2018-11-18 10:51:17,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 10:51:17,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:51:17,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:51:17,890 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:51:17,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:49:49" (3/4) ... [2018-11-18 10:51:17,893 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 10:51:17,933 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_967c63fc-5545-4588-b0b0-8d110a2e41d0/bin-2019/uautomizer/witness.graphml [2018-11-18 10:51:17,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:51:17,934 INFO L168 Benchmark]: Toolchain (without parser) took 90059.51 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 267.4 MB). Free memory was 951.7 MB in the beginning and 1.3 GB in the end (delta: -299.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:51:17,934 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:51:17,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -217.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:17,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:17,935 INFO L168 Benchmark]: Boogie Preprocessor took 69.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:17,935 INFO L168 Benchmark]: RCFGBuilder took 927.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:17,935 INFO L168 Benchmark]: BuchiAutomizer took 88438.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -163.3 MB). Peak memory consumption was 323.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:17,936 INFO L168 Benchmark]: Witness Printer took 43.46 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:17,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 508.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -217.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 927.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 88438.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -163.3 MB). Peak memory consumption was 323.9 MB. Max. memory is 11.5 GB. * Witness Printer took 43.46 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 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 5 locations. The remainder module has 569 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 88.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 87.4s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 469 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 569 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 512 SDtfs, 930 SDslu, 1109 SDs, 0 SdLazy, 93 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 275]: 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, "Env(Water:%i"=0, "libacc.c"=0, ",Pump:"=15, "i > 0 && i <= this->argsCount"=28, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=20, retValue_acc=0, "__utac__get_this_argtype"=0, ")"=39, tmp=0, "Env(Water:%i"=36, "libacc.c"=29, methaneLevelCritical=0, "Off"=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@287f9ad4=0, retValue_acc=1, tmp=0, "CRIT"=0, ",Meth:"=0, "CRIT"=11, tmp___1=0, "Pump(System:"=0, "Off"=0, "On"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d0e3e94=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ec4bc8b=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73c2d3ac=0, tmp=0, "libacc.c"=26, "Off"=17, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, \result=1, "Off"=0, retValue_acc=0, "i > 0 && i <= this->argsCount"=33, "On"=0, "i > 0 && i <= this->argsCount"=0, "On"=16, ",Pump:"=0, "libacc.c"=22, "libacc.c"=0, "__utac__get_this_argtype"=35, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, "libacc.c"=0, "Pump(System:"=12, \result=1, "\n"=19, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ccff68e=0, "i > 0 && i <= this->argsCount"=24, "__utac__get_this_argtype"=31, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d6c6070=0, ",Meth:"=37, "OK"=0, ") "=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64594790=0, "__utac__get_this_arg"=0, tmp=1, "\n"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ccb7246=40, "__utac__get_this_arg"=23, ")"=0, retValue_acc=1, tmp___2=40, tmp___0=0, splverifierCounter=0, "libacc.c"=0, \result=0, "On"=8, "OK"=38, "libacc.c"=34, tmp=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1126f98f=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cb57315=0, ") "=18, "__utac__get_this_arg"=0, "__utac__get_this_arg"=27} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 275]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L188] FCALL "Pump(System:" [L192] FCALL "On" [L196] FCALL "Off" [L200] FCALL ",Pump:" [L204] FCALL "On" [L208] FCALL "Off" [L212] FCALL ") " [L214] FCALL "\n" [L765] FCALL "i > 0 && i <= this->argsCount" [L765] FCALL "libacc.c" [L766] FCALL "__utac__get_this_arg" [L772] FCALL "i > 0 && i <= this->argsCount" [L772] FCALL "libacc.c" [L773] FCALL "__utac__get_this_arg" [L811] FCALL "i > 0 && i <= this->argsCount" [L811] FCALL "libacc.c" [L812] FCALL "__utac__get_this_argtype" [L818] FCALL "i > 0 && i <= this->argsCount" [L818] FCALL "libacc.c" [L819] FCALL "__utac__get_this_argtype" [L886] FCALL "Env(Water:%i" [L887] FCALL ",Meth:" [L891] FCALL "CRIT" [L895] FCALL "OK" [L899] FCALL ")" [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L369] int cleanupTimeShifts = 4; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L445] int retValue_acc ; [L446] int tmp ; [L450] FCALL select_helpers() [L451] FCALL select_features() [L452] CALL, EXPR valid_product() [L949] int retValue_acc ; [L952] retValue_acc = 1 [L953] RET return (retValue_acc); [L452] EXPR valid_product() [L452] tmp = valid_product() [L454] COND TRUE \read(tmp) [L456] FCALL setup() [L457] CALL runTest() [L436] CALL test() [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] splverifierCounter = 0 Loop: [L275] COND TRUE 1 [L277] COND TRUE splverifierCounter < 4 [L283] tmp = __VERIFIER_nondet_int() [L285] COND FALSE !(\read(tmp)) [L293] tmp___0 = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp___0)) [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND TRUE \read(tmp___2) [L307] CALL startSystem() [L257] RET systemActive = 1 [L307] startSystem() [L322] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] CALL processEnvironment() [L123] int tmp ; [L126] COND FALSE !(\read(pumpRunning)) [L141] CALL processEnvironment__wrappee__lowWaterSensor() [L97] int tmp ; [L100] COND FALSE !(\read(pumpRunning)) [L115] RET, FCALL processEnvironment__wrappee__base() [L141] RET processEnvironment__wrappee__lowWaterSensor() [L77] processEnvironment() [L83] CALL __utac_acc__Specification3_spec__1() [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L342] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] RET return (retValue_acc); [L342] EXPR isMethaneLevelCritical() [L342] tmp = isMethaneLevelCritical() [L344] COND FALSE !(\read(tmp)) [L348] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] RET return (retValue_acc); [L348] EXPR getWaterLevel() [L348] tmp___0 = getWaterLevel() [L350] COND FALSE, RET !(tmp___0 == 2) [L83] RET __utac_acc__Specification3_spec__1() [L322] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...