./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product40_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_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/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 ad65d1d3307a121fce5b7d95113e2f3f66b04b5a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 14:18:38,471 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:18:38,473 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:18:38,479 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:18:38,479 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:18:38,480 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:18:38,481 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:18:38,482 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:18:38,483 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:18:38,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:18:38,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:18:38,484 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:18:38,485 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:18:38,485 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:18:38,486 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:18:38,487 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:18:38,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:18:38,488 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:18:38,490 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:18:38,491 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:18:38,492 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:18:38,492 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:18:38,494 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:18:38,494 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:18:38,494 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:18:38,495 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:18:38,496 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:18:38,497 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:18:38,497 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:18:38,498 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:18:38,498 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:18:38,499 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:18:38,499 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:18:38,499 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:18:38,500 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:18:38,500 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:18:38,500 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 14:18:38,509 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:18:38,510 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:18:38,510 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:18:38,511 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:18:38,511 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:18:38,511 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:18:38,511 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:18:38,511 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:18:38,511 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:18:38,511 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:18:38,512 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:18:38,512 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:18:38,512 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:18:38,512 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:18:38,512 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:18:38,512 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:18:38,512 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:18:38,512 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:18:38,513 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:18:38,513 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:18:38,513 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:18:38,513 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:18:38,513 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:18:38,513 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:18:38,513 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:18:38,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:18:38,513 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:18:38,514 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:18:38,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:18:38,514 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:18:38,514 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:18:38,514 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:18:38,514 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_974e4882-72dc-43c0-bf20-46782820d58b/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 -> ad65d1d3307a121fce5b7d95113e2f3f66b04b5a [2018-11-18 14:18:38,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:18:38,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:18:38,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:18:38,556 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:18:38,557 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:18:38,557 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product40_false-unreach-call_false-termination.cil.c [2018-11-18 14:18:38,603 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/data/11ac2870e/1bfbc0197d3f45599f539e49528a9c20/FLAG34c3eeff3 [2018-11-18 14:18:38,934 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:18:38,935 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/sv-benchmarks/c/product-lines/minepump_spec1_product40_false-unreach-call_false-termination.cil.c [2018-11-18 14:18:38,942 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/data/11ac2870e/1bfbc0197d3f45599f539e49528a9c20/FLAG34c3eeff3 [2018-11-18 14:18:38,951 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/data/11ac2870e/1bfbc0197d3f45599f539e49528a9c20 [2018-11-18 14:18:38,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:18:38,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:18:38,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:18:38,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:18:38,958 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:18:38,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:18:38" (1/1) ... [2018-11-18 14:18:38,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dbef4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:38, skipping insertion in model container [2018-11-18 14:18:38,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:18:38" (1/1) ... [2018-11-18 14:18:38,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:18:39,004 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:18:39,215 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:18:39,224 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:18:39,321 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:18:39,339 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:18:39,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39 WrapperNode [2018-11-18 14:18:39,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:18:39,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:18:39,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:18:39,340 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:18:39,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... [2018-11-18 14:18:39,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... [2018-11-18 14:18:39,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:18:39,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:18:39,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:18:39,380 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:18:39,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... [2018-11-18 14:18:39,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... [2018-11-18 14:18:39,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... [2018-11-18 14:18:39,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... [2018-11-18 14:18:39,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... [2018-11-18 14:18:39,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... [2018-11-18 14:18:39,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... [2018-11-18 14:18:39,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:18:39,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:18:39,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:18:39,413 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:18:39,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/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 14:18:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:18:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:18:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:18:39,996 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:18:39,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:39 BoogieIcfgContainer [2018-11-18 14:18:39,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:18:39,997 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:18:39,997 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:18:40,000 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:18:40,000 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:18:40,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:18:38" (1/3) ... [2018-11-18 14:18:40,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dac8f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:18:40, skipping insertion in model container [2018-11-18 14:18:40,001 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:18:40,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:39" (2/3) ... [2018-11-18 14:18:40,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dac8f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:18:40, skipping insertion in model container [2018-11-18 14:18:40,002 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:18:40,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:39" (3/3) ... [2018-11-18 14:18:40,003 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product40_false-unreach-call_false-termination.cil.c [2018-11-18 14:18:40,036 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:18:40,037 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:18:40,037 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:18:40,037 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:18:40,037 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:18:40,037 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:18:40,037 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:18:40,037 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:18:40,037 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:18:40,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 163 states. [2018-11-18 14:18:40,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2018-11-18 14:18:40,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:18:40,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:18:40,079 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:18:40,080 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 14:18:40,080 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:18:40,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 163 states. [2018-11-18 14:18:40,085 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2018-11-18 14:18:40,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:18:40,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:18:40,086 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:18:40,086 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 14:18:40,091 INFO L794 eck$LassoCheckResult]: Stem: 113#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; 14#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 125#L473true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 60#L466true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 151#L481true main_#t~ret26 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret26;havoc main_#t~ret26; 155#L437true assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 63#L411true 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; 149#L266-3true [2018-11-18 14:18:40,091 INFO L796 eck$LassoCheckResult]: Loop: 149#L266-3true assume true; 156#L266-1true assume !false; 114#L267true assume test_~splverifierCounter~0 < 4; 61#L268true test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 58#L276true assume !(0 != test_~tmp~3); 51#L276-2true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 108#L286true assume !(0 != test_~tmp___0~1); 107#L286-2true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 10#L296true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet23;havoc test_#t~nondet23; 38#L304true assume !(0 != test_~tmp___1~0); 24#L304-2true assume { :begin_inline_timeShift } true; 25#L59true assume !(0 != ~pumpRunning~0); 40#L59-2true assume !(0 != ~systemActive~0); 118#L66-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24, __utac_acc__Specification1_spec__1_#t~ret25, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 136#L905-1true __utac_acc__Specification1_spec__1_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret24;havoc __utac_acc__Specification1_spec__1_#t~ret24; 44#L334true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 45#L334-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 20#L76true assume { :end_inline_timeShift } true; 149#L266-3true [2018-11-18 14:18:40,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:18:40,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 14:18:40,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:18:40,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:18:40,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:18:40,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:40,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:18:40,269 INFO L82 PathProgramCache]: Analyzing trace with hash -187875967, now seen corresponding path program 1 times [2018-11-18 14:18:40,269 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:18:40,269 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:18:40,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:18:40,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:40,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:18:40,283 INFO L82 PathProgramCache]: Analyzing trace with hash 994765381, now seen corresponding path program 1 times [2018-11-18 14:18:40,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:18:40,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:18:40,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:18:40,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:18:40,422 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 14:18:40,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:18:40,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:18:40,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:18:40,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:18:40,502 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 6 states. [2018-11-18 14:18:40,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:18:40,766 INFO L93 Difference]: Finished difference Result 530 states and 691 transitions. [2018-11-18 14:18:40,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:18:40,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 530 states and 691 transitions. [2018-11-18 14:18:40,777 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 348 [2018-11-18 14:18:40,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 530 states to 490 states and 651 transitions. [2018-11-18 14:18:40,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 490 [2018-11-18 14:18:40,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 490 [2018-11-18 14:18:40,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 490 states and 651 transitions. [2018-11-18 14:18:40,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:18:40,792 INFO L705 BuchiCegarLoop]: Abstraction has 490 states and 651 transitions. [2018-11-18 14:18:40,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states and 651 transitions. [2018-11-18 14:18:40,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 204. [2018-11-18 14:18:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-11-18 14:18:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 270 transitions. [2018-11-18 14:18:40,827 INFO L728 BuchiCegarLoop]: Abstraction has 204 states and 270 transitions. [2018-11-18 14:18:40,827 INFO L608 BuchiCegarLoop]: Abstraction has 204 states and 270 transitions. [2018-11-18 14:18:40,827 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:18:40,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 204 states and 270 transitions. [2018-11-18 14:18:40,829 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2018-11-18 14:18:40,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:18:40,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:18:40,830 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:18:40,830 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 14:18:40,830 INFO L794 eck$LassoCheckResult]: Stem: 837#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; 734#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 735#L473 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 801#L466 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 802#L481 main_#t~ret26 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret26;havoc main_#t~ret26; 859#L437 assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 806#L411 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; 747#L266-3 [2018-11-18 14:18:40,831 INFO L796 eck$LassoCheckResult]: Loop: 747#L266-3 assume true; 858#L266-1 assume !false; 838#L267 assume test_~splverifierCounter~0 < 4; 803#L268 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 799#L276 assume !(0 != test_~tmp~3); 791#L276-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 792#L286 assume !(0 != test_~tmp___0~1); 834#L286-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 725#L296 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 726#L249 assume { :end_inline_startSystem } true; 753#L304-2 assume { :begin_inline_timeShift } true; 754#L59 assume !(0 != ~pumpRunning~0); 755#L59-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 763#L117 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 765#L91-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 813#L83-3 assume { :end_inline_processEnvironment__wrappee__base } true; 814#L91-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 732#L117-1 assume { :end_inline_processEnvironment } true; 733#L66-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24, __utac_acc__Specification1_spec__1_#t~ret25, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 843#L905-1 __utac_acc__Specification1_spec__1_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret24;havoc __utac_acc__Specification1_spec__1_#t~ret24; 780#L334 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 781#L334-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 746#L76 assume { :end_inline_timeShift } true; 747#L266-3 [2018-11-18 14:18:40,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:18:40,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 14:18:40,831 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:18:40,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:18:40,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:18:40,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:40,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:18:40,877 INFO L82 PathProgramCache]: Analyzing trace with hash -151849822, now seen corresponding path program 1 times [2018-11-18 14:18:40,878 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:18:40,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:18:40,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,878 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:18:40,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:18:40,894 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 14:18:40,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:18:40,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:18:40,895 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:18:40,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:18:40,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:18:40,896 INFO L87 Difference]: Start difference. First operand 204 states and 270 transitions. cyclomatic complexity: 69 Second operand 3 states. [2018-11-18 14:18:41,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:18:41,005 INFO L93 Difference]: Finished difference Result 257 states and 324 transitions. [2018-11-18 14:18:41,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:18:41,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 257 states and 324 transitions. [2018-11-18 14:18:41,008 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 187 [2018-11-18 14:18:41,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 257 states to 257 states and 324 transitions. [2018-11-18 14:18:41,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2018-11-18 14:18:41,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2018-11-18 14:18:41,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 324 transitions. [2018-11-18 14:18:41,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:18:41,012 INFO L705 BuchiCegarLoop]: Abstraction has 257 states and 324 transitions. [2018-11-18 14:18:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 324 transitions. [2018-11-18 14:18:41,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2018-11-18 14:18:41,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2018-11-18 14:18:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 324 transitions. [2018-11-18 14:18:41,024 INFO L728 BuchiCegarLoop]: Abstraction has 257 states and 324 transitions. [2018-11-18 14:18:41,024 INFO L608 BuchiCegarLoop]: Abstraction has 257 states and 324 transitions. [2018-11-18 14:18:41,024 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:18:41,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 324 transitions. [2018-11-18 14:18:41,026 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 187 [2018-11-18 14:18:41,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:18:41,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:18:41,027 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:18:41,027 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:18:41,028 INFO L794 eck$LassoCheckResult]: Stem: 1305#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; 1199#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 1200#L473 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1267#L466 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1268#L481 main_#t~ret26 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret26;havoc main_#t~ret26; 1332#L437 assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 1272#L411 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; 1212#L266-3 [2018-11-18 14:18:41,028 INFO L796 eck$LassoCheckResult]: Loop: 1212#L266-3 assume true; 1331#L266-1 assume !false; 1306#L267 assume test_~splverifierCounter~0 < 4; 1269#L268 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 1264#L276 assume !(0 != test_~tmp~3); 1256#L276-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 1257#L286 assume !(0 != test_~tmp___0~1); 1301#L286-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 1191#L296 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1192#L249 assume { :end_inline_startSystem } true; 1218#L304-2 assume { :begin_inline_timeShift } true; 1219#L59 assume !(0 != ~pumpRunning~0); 1220#L59-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1230#L117 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1231#L91-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1273#L945-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1274#L950-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1213#L219-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1209#L219-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1210#L225-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1186#L95-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1188#L83-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1279#L91-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1197#L117-1 assume { :end_inline_processEnvironment } true; 1198#L66-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24, __utac_acc__Specification1_spec__1_#t~ret25, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1311#L905-1 __utac_acc__Specification1_spec__1_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret24;havoc __utac_acc__Specification1_spec__1_#t~ret24; 1242#L334 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 1243#L334-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1211#L76 assume { :end_inline_timeShift } true; 1212#L266-3 [2018-11-18 14:18:41,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:18:41,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 14:18:41,029 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:18:41,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:18:41,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:41,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:18:41,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:41,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:18:41,066 INFO L82 PathProgramCache]: Analyzing trace with hash -533191558, now seen corresponding path program 1 times [2018-11-18 14:18:41,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:18:41,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:18:41,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:41,067 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:18:41,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:41,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:18:41,078 INFO L82 PathProgramCache]: Analyzing trace with hash -658926282, now seen corresponding path program 1 times [2018-11-18 14:18:41,078 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:18:41,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:18:41,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:41,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:18:41,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:18:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:18:41,245 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-11-18 14:19:36,237 WARN L180 SmtUtils]: Spent 54.96 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 14:20:05,987 WARN L180 SmtUtils]: Spent 29.75 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 14:20:06,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:20:06 BoogieIcfgContainer [2018-11-18 14:20:06,060 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:20:06,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:20:06,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:20:06,061 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:20:06,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:39" (3/4) ... [2018-11-18 14:20:06,064 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 14:20:06,104 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_974e4882-72dc-43c0-bf20-46782820d58b/bin-2019/uautomizer/witness.graphml [2018-11-18 14:20:06,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:20:06,105 INFO L168 Benchmark]: Toolchain (without parser) took 87151.65 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 276.8 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -236.7 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:20:06,105 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:20:06,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -226.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:20:06,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:20:06,106 INFO L168 Benchmark]: Boogie Preprocessor took 32.58 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:20:06,106 INFO L168 Benchmark]: RCFGBuilder took 584.24 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: 64.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:20:06,106 INFO L168 Benchmark]: BuchiAutomizer took 86063.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -89.4 MB). Peak memory consumption was 287.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:20:06,107 INFO L168 Benchmark]: Witness Printer took 43.16 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:20:06,108 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 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 385.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -226.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.58 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 584.24 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: 64.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 86063.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -89.4 MB). Peak memory consumption was 287.0 MB. Max. memory is 11.5 GB. * Witness Printer took 43.16 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 257 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 86.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 85.4s. Construction of modules took 0.2s. 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, 286 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 257 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 401 SDtfs, 1313 SDslu, 1288 SDs, 0 SdLazy, 79 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 266]: 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, "Env(Water:%i"=36, "libacc.c"=29, methaneLevelCritical=0, "Off"=14, tmp___0=0, tmp=0, "CRIT"=0, retValue_acc=0, ",Meth:"=0, "CRIT"=11, tmp___1=0, tmp___0=0, "Pump(System:"=0, "Off"=0, "On"=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39536678=0, cleanupTimeShifts=4, "libacc.c"=26, "Off"=17, NULL=0, systemActive=1, waterLevel=1, "Off"=0, "i > 0 && i <= this->argsCount"=33, "On"=0, retValue_acc=0, "i > 0 && i <= this->argsCount"=0, "On"=16, \result=0, ",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@23e01e4a=0, "i > 0 && i <= this->argsCount"=24, "__utac__get_this_argtype"=31, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5709abd2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@192e39c7=0, ",Meth:"=37, "OK"=0, ") "=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76558916=0, "__utac__get_this_arg"=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ae40df6=0, "\n"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1040b7de=40, retValue_acc=1, \result=1, "__utac__get_this_arg"=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cc3ee58=0, ")"=0, tmp=1, tmp___2=40, retValue_acc=1, tmp___0=0, splverifierCounter=0, "libacc.c"=0, \result=0, "On"=8, "OK"=38, "libacc.c"=34, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3325d980=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63cbcdf4=0, ") "=18, "__utac__get_this_arg"=0, "__utac__get_this_arg"=27} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 266]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L179] FCALL "Pump(System:" [L183] FCALL "On" [L187] FCALL "Off" [L191] FCALL ",Pump:" [L195] FCALL "On" [L199] FCALL "Off" [L203] FCALL ") " [L205] FCALL "\n" [L792] FCALL "i > 0 && i <= this->argsCount" [L792] FCALL "libacc.c" [L793] FCALL "__utac__get_this_arg" [L799] FCALL "i > 0 && i <= this->argsCount" [L799] FCALL "libacc.c" [L800] FCALL "__utac__get_this_arg" [L838] FCALL "i > 0 && i <= this->argsCount" [L838] FCALL "libacc.c" [L839] FCALL "__utac__get_this_argtype" [L845] FCALL "i > 0 && i <= this->argsCount" [L845] FCALL "libacc.c" [L846] FCALL "__utac__get_this_argtype" [L914] FCALL "Env(Water:%i" [L915] FCALL ",Meth:" [L919] FCALL "CRIT" [L923] FCALL "OK" [L927] FCALL ")" [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L352] int cleanupTimeShifts = 4; [L862] int waterLevel = 1; [L863] int methaneLevelCritical = 0; [L664] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L428] int retValue_acc ; [L429] int tmp ; [L433] FCALL select_helpers() [L434] FCALL select_features() [L435] CALL, EXPR valid_product() [L477] int retValue_acc ; [L480] retValue_acc = 1 [L481] RET return (retValue_acc); [L435] EXPR valid_product() [L435] tmp = valid_product() [L437] COND TRUE \read(tmp) [L439] FCALL setup() [L440] CALL runTest() [L419] CALL test() [L257] int splverifierCounter ; [L258] int tmp ; [L259] int tmp___0 ; [L260] int tmp___1 ; [L261] int tmp___2 ; [L264] splverifierCounter = 0 Loop: [L266] COND TRUE 1 [L268] COND TRUE splverifierCounter < 4 [L274] tmp = __VERIFIER_nondet_int() [L276] COND FALSE !(\read(tmp)) [L284] tmp___0 = __VERIFIER_nondet_int() [L286] COND FALSE !(\read(tmp___0)) [L294] tmp___2 = __VERIFIER_nondet_int() [L296] COND TRUE \read(tmp___2) [L298] CALL startSystem() [L248] RET systemActive = 1 [L298] startSystem() [L313] CALL timeShift() [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L68] CALL processEnvironment() [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L132] CALL processEnvironment__wrappee__highWaterSensor() [L88] int tmp ; [L91] COND TRUE ! pumpRunning [L93] CALL, EXPR isHighWaterLevel() [L211] int retValue_acc ; [L212] int tmp ; [L213] int tmp___0 ; [L217] CALL, EXPR isHighWaterSensorDry() [L942] int retValue_acc ; [L945] COND TRUE waterLevel < 2 [L946] retValue_acc = 1 [L947] RET return (retValue_acc); [L217] EXPR isHighWaterSensorDry() [L217] tmp = isHighWaterSensorDry() [L219] COND TRUE \read(tmp) [L220] tmp___0 = 0 [L224] retValue_acc = tmp___0 [L225] RET return (retValue_acc); [L93] EXPR isHighWaterLevel() [L93] tmp = isHighWaterLevel() [L95] COND FALSE !(\read(tmp)) [L101] RET, FCALL processEnvironment__wrappee__base() [L132] RET processEnvironment__wrappee__highWaterSensor() [L68] processEnvironment() [L74] CALL __utac_acc__Specification1_spec__1() [L327] int tmp ; [L328] int tmp___0 ; [L332] CALL, EXPR isMethaneLevelCritical() [L901] int retValue_acc ; [L904] retValue_acc = methaneLevelCritical [L905] RET return (retValue_acc); [L332] EXPR isMethaneLevelCritical() [L332] tmp = isMethaneLevelCritical() [L334] COND FALSE, RET !(\read(tmp)) [L74] RET __utac_acc__Specification1_spec__1() [L313] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...