./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product16_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_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product16_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/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 09e3ebf9e88b37df43a29457dc1ad9a694c62daa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:51:35,589 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:35,590 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:35,595 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:35,596 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:35,596 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:35,597 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:35,598 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:35,599 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:35,600 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:35,601 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:35,601 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:35,601 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:35,602 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:35,602 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:35,603 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:35,603 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:35,604 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:35,606 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:35,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:35,607 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:35,608 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:35,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:35,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:35,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:35,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:35,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:35,611 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:35,612 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:35,613 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:35,613 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:35,613 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:35,613 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:35,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:35,614 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:35,615 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:35,615 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 15:51:35,623 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:35,624 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:35,625 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:51:35,625 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:51:35,625 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:51:35,625 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 15:51:35,625 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 15:51:35,625 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 15:51:35,625 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 15:51:35,626 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 15:51:35,626 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 15:51:35,626 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:35,626 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:51:35,626 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:51:35,626 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:51:35,626 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:51:35,626 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:35,627 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 15:51:35,627 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 15:51:35,627 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 15:51:35,628 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:51:35,628 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:35,629 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 15:51:35,629 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:35,629 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 15:51:35,629 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:35,629 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:51:35,629 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 15:51:35,629 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:35,630 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:51:35,630 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 15:51:35,630 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 15:51:35,631 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_96305824-ee23-4c02-aaff-6b8ea04a3971/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 -> 09e3ebf9e88b37df43a29457dc1ad9a694c62daa [2018-11-18 15:51:35,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:35,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:35,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:35,669 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:35,669 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:35,670 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product16_false-unreach-call_false-termination.cil.c [2018-11-18 15:51:35,714 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/data/f293aeed9/a1c1542202cf4c558a20649737c18f70/FLAGfa016f83d [2018-11-18 15:51:36,154 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:36,154 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/sv-benchmarks/c/product-lines/minepump_spec3_product16_false-unreach-call_false-termination.cil.c [2018-11-18 15:51:36,160 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/data/f293aeed9/a1c1542202cf4c558a20649737c18f70/FLAGfa016f83d [2018-11-18 15:51:36,170 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/data/f293aeed9/a1c1542202cf4c558a20649737c18f70 [2018-11-18 15:51:36,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:36,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:51:36,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:36,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:36,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:36,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1177d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36, skipping insertion in model container [2018-11-18 15:51:36,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:36,222 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:36,410 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:36,420 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:36,518 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:36,539 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:36,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36 WrapperNode [2018-11-18 15:51:36,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:36,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:36,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:51:36,540 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:51:36,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:36,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:36,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:36,584 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:36,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... [2018-11-18 15:51:36,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:36,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:36,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:36,611 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:36,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/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 15:51:36,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:51:36,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:36,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:37,096 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:37,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:37 BoogieIcfgContainer [2018-11-18 15:51:37,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:37,097 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 15:51:37,097 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 15:51:37,099 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 15:51:37,100 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:51:37,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 03:51:36" (1/3) ... [2018-11-18 15:51:37,101 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17f1996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:51:37, skipping insertion in model container [2018-11-18 15:51:37,101 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:51:37,101 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:36" (2/3) ... [2018-11-18 15:51:37,101 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17f1996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:51:37, skipping insertion in model container [2018-11-18 15:51:37,101 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:51:37,101 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:37" (3/3) ... [2018-11-18 15:51:37,102 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product16_false-unreach-call_false-termination.cil.c [2018-11-18 15:51:37,134 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:51:37,134 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 15:51:37,135 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 15:51:37,135 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 15:51:37,135 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:51:37,135 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:51:37,135 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 15:51:37,135 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:51:37,135 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 15:51:37,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2018-11-18 15:51:37,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2018-11-18 15:51:37,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:51:37,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:51:37,171 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:37,171 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 15:51:37,171 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 15:51:37,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2018-11-18 15:51:37,174 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2018-11-18 15:51:37,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:51:37,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:51:37,175 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:37,175 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 15:51:37,178 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.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; 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 108#L792true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 65#L785true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 9#L800true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 35#L139true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 107#L112true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 98#L531-3true [2018-11-18 15:51:37,179 INFO L796 eck$LassoCheckResult]: Loop: 98#L531-3true assume true; 96#L531-1true assume !false; 49#L532true assume test_~splverifierCounter~0 < 4; 10#L533true test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 16#L541true assume !(0 != test_~tmp~4); 20#L541-2true test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 64#L551true assume !(0 != test_~tmp___0~0); 69#L551-2true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 103#L561true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 50#L766true assume { :end_inline_startSystem } true; 111#L569-2true assume { :begin_inline_timeShift } true; 36#L604true assume !(0 != ~pumpRunning~0); 39#L604-2true assume !(0 != ~systemActive~0); 89#L611-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 38#L849-1true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 75#L895true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 41#L901-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5#L621true assume { :end_inline_timeShift } true; 98#L531-3true [2018-11-18 15:51:37,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:37,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 15:51:37,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:37,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:37,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:37,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:37,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1055899077, now seen corresponding path program 1 times [2018-11-18 15:51:37,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:37,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:37,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:37,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:37,370 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 15:51:37,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:37,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:51:37,374 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 15:51:37,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:51:37,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:51:37,385 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2018-11-18 15:51:37,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:37,442 INFO L93 Difference]: Finished difference Result 203 states and 259 transitions. [2018-11-18 15:51:37,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:51:37,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 203 states and 259 transitions. [2018-11-18 15:51:37,450 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2018-11-18 15:51:37,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 203 states to 183 states and 238 transitions. [2018-11-18 15:51:37,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2018-11-18 15:51:37,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2018-11-18 15:51:37,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 238 transitions. [2018-11-18 15:51:37,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:51:37,458 INFO L705 BuchiCegarLoop]: Abstraction has 183 states and 238 transitions. [2018-11-18 15:51:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 238 transitions. [2018-11-18 15:51:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2018-11-18 15:51:37,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-11-18 15:51:37,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 234 transitions. [2018-11-18 15:51:37,482 INFO L728 BuchiCegarLoop]: Abstraction has 180 states and 234 transitions. [2018-11-18 15:51:37,482 INFO L608 BuchiCegarLoop]: Abstraction has 180 states and 234 transitions. [2018-11-18 15:51:37,482 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 15:51:37,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 180 states and 234 transitions. [2018-11-18 15:51:37,484 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 129 [2018-11-18 15:51:37,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:51:37,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:51:37,485 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:37,485 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] [2018-11-18 15:51:37,486 INFO L794 eck$LassoCheckResult]: Stem: 402#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.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; 349#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 350#L792 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 425#L785 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 339#L800 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 340#L139 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 403#L112 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 424#L531-3 [2018-11-18 15:51:37,486 INFO L796 eck$LassoCheckResult]: Loop: 424#L531-3 assume true; 444#L531-1 assume !false; 443#L532 assume test_~splverifierCounter~0 < 4; 442#L533 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 440#L541 assume !(0 != test_~tmp~4); 438#L541-2 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 437#L551 assume !(0 != test_~tmp___0~0); 436#L551-2 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 435#L561 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 417#L766 assume { :end_inline_startSystem } true; 418#L569-2 assume { :begin_inline_timeShift } true; 406#L604 assume !(0 != ~pumpRunning~0); 401#L604-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 409#L636 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 428#L628-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 326#L636-1 assume { :end_inline_processEnvironment } true; 368#L611-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 452#L849-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 448#L895 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 446#L901-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 445#L621 assume { :end_inline_timeShift } true; 424#L531-3 [2018-11-18 15:51:37,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:37,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 15:51:37,486 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:37,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:37,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:37,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:37,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1509907828, now seen corresponding path program 1 times [2018-11-18 15:51:37,544 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:37,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:37,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,545 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:51:37,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:37,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1961577008, now seen corresponding path program 1 times [2018-11-18 15:51:37,556 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:37,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:37,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:37,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:37,629 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 15:51:37,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:37,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 15:51:37,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:37,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:37,712 INFO L87 Difference]: Start difference. First operand 180 states and 234 transitions. cyclomatic complexity: 57 Second operand 5 states. [2018-11-18 15:51:37,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:37,898 INFO L93 Difference]: Finished difference Result 621 states and 809 transitions. [2018-11-18 15:51:37,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:51:37,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 621 states and 809 transitions. [2018-11-18 15:51:37,905 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 468 [2018-11-18 15:51:37,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 621 states to 621 states and 809 transitions. [2018-11-18 15:51:37,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 621 [2018-11-18 15:51:37,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 621 [2018-11-18 15:51:37,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 621 states and 809 transitions. [2018-11-18 15:51:37,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:51:37,918 INFO L705 BuchiCegarLoop]: Abstraction has 621 states and 809 transitions. [2018-11-18 15:51:37,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states and 809 transitions. [2018-11-18 15:51:37,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 353. [2018-11-18 15:51:37,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2018-11-18 15:51:37,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 453 transitions. [2018-11-18 15:51:37,936 INFO L728 BuchiCegarLoop]: Abstraction has 353 states and 453 transitions. [2018-11-18 15:51:37,936 INFO L608 BuchiCegarLoop]: Abstraction has 353 states and 453 transitions. [2018-11-18 15:51:37,936 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 15:51:37,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 353 states and 453 transitions. [2018-11-18 15:51:37,939 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 258 [2018-11-18 15:51:37,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:51:37,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:51:37,940 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:37,940 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 15:51:37,941 INFO L794 eck$LassoCheckResult]: Stem: 1229#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.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; 1169#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 1170#L792 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1265#L785 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 1160#L800 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1161#L139 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1230#L112 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1152#L531-3 [2018-11-18 15:51:37,941 INFO L796 eck$LassoCheckResult]: Loop: 1152#L531-3 assume true; 1231#L531-1 assume !false; 1232#L532 assume test_~splverifierCounter~0 < 4; 1351#L533 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 1177#L541 assume !(0 != test_~tmp~4); 1179#L541-2 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 1193#L551 assume !(0 != test_~tmp___0~0); 1267#L551-2 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 1255#L561 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1253#L766 assume { :end_inline_startSystem } true; 1254#L569-2 assume { :begin_inline_timeShift } true; 1233#L604 assume !(0 != ~pumpRunning~0); 1228#L604-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1237#L636 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 1388#L628-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1191#L636-1 assume { :end_inline_processEnvironment } true; 1192#L611-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 1212#L849-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 1166#L895 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 1167#L881 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 1258#L901 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 1239#L901-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1151#L621 assume { :end_inline_timeShift } true; 1152#L531-3 [2018-11-18 15:51:37,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:37,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 15:51:37,941 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:37,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:37,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:37,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:37,985 INFO L82 PathProgramCache]: Analyzing trace with hash -676271801, now seen corresponding path program 1 times [2018-11-18 15:51:37,985 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:37,985 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:37,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,987 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:51:37,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:37,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:37,995 INFO L82 PathProgramCache]: Analyzing trace with hash -413886717, now seen corresponding path program 1 times [2018-11-18 15:51:37,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:37,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:37,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:37,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:37,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:52:06,287 WARN L180 SmtUtils]: Spent 28.11 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 15:52:14,601 WARN L180 SmtUtils]: Spent 8.31 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 15:52:14,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 03:52:14 BoogieIcfgContainer [2018-11-18 15:52:14,664 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 15:52:14,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:52:14,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:52:14,665 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:52:14,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:37" (3/4) ... [2018-11-18 15:52:14,668 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 15:52:14,711 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_96305824-ee23-4c02-aaff-6b8ea04a3971/bin-2019/uautomizer/witness.graphml [2018-11-18 15:52:14,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:52:14,712 INFO L168 Benchmark]: Toolchain (without parser) took 38538.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 956.6 MB in the beginning and 903.0 MB in the end (delta: 53.6 MB). Peak memory consumption was 221.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:14,713 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:52:14,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:14,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:52:14,713 INFO L168 Benchmark]: Boogie Preprocessor took 26.84 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 15:52:14,714 INFO L168 Benchmark]: RCFGBuilder took 485.54 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: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:14,714 INFO L168 Benchmark]: BuchiAutomizer took 37567.00 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.8 MB). Free memory was 1.1 GB in the beginning and 910.2 MB in the end (delta: 154.3 MB). Peak memory consumption was 200.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:14,714 INFO L168 Benchmark]: Witness Printer took 47.10 ms. Allocated memory is still 1.2 GB. Free memory was 910.2 MB in the beginning and 903.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:14,719 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.84 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. * RCFGBuilder took 485.54 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: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37567.00 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.8 MB). Free memory was 1.1 GB in the beginning and 910.2 MB in the end (delta: 154.3 MB). Peak memory consumption was 200.3 MB. Max. memory is 11.5 GB. * Witness Printer took 47.10 ms. Allocated memory is still 1.2 GB. Free memory was 910.2 MB in the beginning and 903.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 353 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 37.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 271 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 353 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 308 SDtfs, 560 SDslu, 653 SDs, 0 SdLazy, 93 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: 531]: 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, ",Meth:"=0, retValue_acc=0, "On"=0, "On"=34, "Pump(System:"=0, "Env(Water:%i"=0, ",Meth:"=35, ") "=24, methaneLevelCritical=0, "CRIT"=0, tmp=0, ")"=0, "__utac__get_this_argtype"=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b3fce87=0, "OK"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bf3c229=0, tmp___1=0, "libacc.c"=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c6583d7=0, "libacc.c"=8, "libacc.c"=15, "i > 0 && i <= this->argsCount"=23, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=38, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7daf1ca1=0, ",Pump:"=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4454c4de=161, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11a1c3b3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c8851dc=0, tmp___0=1, tmp=0, "libacc.c"=0, "__utac__get_this_arg"=0, "libacc.c"=0, NULL=0, systemActive=1, waterLevel=1, ")"=11, \result=1, "libacc.c"=0, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d80bd9=0, "\n"=17, retValue_acc=0, "Pump(System:"=16, "Off"=0, tmp___0=0, "On"=0, ",Pump:"=0, "\n"=0, ") "=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, "On"=19, "__utac__get_this_arg"=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@aeb67c7=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, "Off"=28, "OK"=37, "Env(Water:%i"=27, retValue_acc=1, "i > 0 && i <= this->argsCount"=26, retValue_acc=1, tmp___2=161, "__utac__get_this_argtype"=12, splverifierCounter=0, \result=0, tmp___1=0, head=0, "i > 0 && i <= this->argsCount"=0, tmp=0, "__utac__get_this_arg"=29, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=22, "libacc.c"=0, "libacc.c"=36, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "Off"=14, "Off"=0, "CRIT"=18} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 531]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L450] FCALL "i > 0 && i <= this->argsCount" [L450] FCALL "libacc.c" [L451] FCALL "__utac__get_this_arg" [L457] FCALL "i > 0 && i <= this->argsCount" [L457] FCALL "libacc.c" [L458] FCALL "__utac__get_this_arg" [L496] FCALL "i > 0 && i <= this->argsCount" [L496] FCALL "libacc.c" [L497] FCALL "__utac__get_this_argtype" [L503] FCALL "i > 0 && i <= this->argsCount" [L503] FCALL "libacc.c" [L504] FCALL "__utac__get_this_argtype" [L715] FCALL "Pump(System:" [L719] FCALL "On" [L723] FCALL "Off" [L727] FCALL ",Pump:" [L731] FCALL "On" [L735] FCALL "Off" [L739] FCALL ") " [L741] FCALL "\n" [L858] FCALL "Env(Water:%i" [L859] FCALL ",Meth:" [L863] FCALL "CRIT" [L867] FCALL "OK" [L871] FCALL ")" [L49] int cleanupTimeShifts = 4; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L796] int retValue_acc ; [L799] retValue_acc = 1 [L800] RET return (retValue_acc); [L137] EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] splverifierCounter = 0 Loop: [L531] COND TRUE 1 [L533] COND TRUE splverifierCounter < 4 [L539] tmp = __VERIFIER_nondet_int() [L541] COND FALSE !(\read(tmp)) [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp___2) [L563] CALL startSystem() [L765] RET systemActive = 1 [L563] startSystem() [L578] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND TRUE \read(systemActive) [L613] CALL processEnvironment() [L633] int tmp ; [L636] COND FALSE !(\read(pumpRunning)) [L651] RET, FCALL processEnvironment__wrappee__methaneQuery() [L613] processEnvironment() [L619] CALL __utac_acc__Specification3_spec__1() [L887] int tmp ; [L888] int tmp___0 ; [L889] int tmp___1 ; [L893] CALL, EXPR isMethaneLevelCritical() [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] RET return (retValue_acc); [L893] EXPR isMethaneLevelCritical() [L893] tmp = isMethaneLevelCritical() [L895] COND FALSE !(\read(tmp)) [L899] CALL, EXPR getWaterLevel() [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] RET return (retValue_acc); [L899] EXPR getWaterLevel() [L899] tmp___0 = getWaterLevel() [L901] COND FALSE, RET !(tmp___0 == 2) [L619] RET __utac_acc__Specification3_spec__1() [L578] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...