./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product62_true-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_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product62_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/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 b53c74b3fbc69a335e393da17bbcb1aa5d3461be ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:22:56,535 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:22:56,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:22:56,544 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:22:56,545 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:22:56,545 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:22:56,546 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:22:56,547 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:22:56,548 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:22:56,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:22:56,549 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:22:56,549 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:22:56,550 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:22:56,551 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:22:56,551 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:22:56,552 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:22:56,552 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:22:56,554 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:22:56,555 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:22:56,556 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:22:56,557 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:22:56,557 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:22:56,559 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:22:56,559 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:22:56,559 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:22:56,560 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:22:56,561 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:22:56,561 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:22:56,562 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:22:56,563 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:22:56,563 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:22:56,563 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:22:56,564 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:22:56,564 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:22:56,564 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:22:56,565 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:22:56,565 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:22:56,576 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:22:56,576 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:22:56,577 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:22:56,577 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:22:56,577 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:22:56,578 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:22:56,578 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:22:56,578 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:22:56,578 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:22:56,578 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:22:56,578 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:22:56,578 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:22:56,579 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:22:56,579 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:22:56,579 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:22:56,579 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:22:56,579 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:22:56,579 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:22:56,579 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:22:56,579 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:22:56,580 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:22:56,580 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:22:56,580 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:22:56,580 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:22:56,580 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:22:56,580 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:22:56,582 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:22:56,582 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:22:56,582 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:22:56,583 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:22:56,583 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:22:56,583 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:22:56,583 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_526d1d62-3ad4-4caa-a0e3-e359cce34e60/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 -> b53c74b3fbc69a335e393da17bbcb1aa5d3461be [2018-11-18 16:22:56,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:22:56,615 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:22:56,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:22:56,619 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:22:56,619 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:22:56,620 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product62_true-unreach-call_false-termination.cil.c [2018-11-18 16:22:56,671 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/data/458ff8c63/9991ca25d058422890f62f6b83c36450/FLAGbf669c1d8 [2018-11-18 16:22:57,066 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:22:57,066 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/sv-benchmarks/c/product-lines/minepump_spec3_product62_true-unreach-call_false-termination.cil.c [2018-11-18 16:22:57,073 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/data/458ff8c63/9991ca25d058422890f62f6b83c36450/FLAGbf669c1d8 [2018-11-18 16:22:57,082 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/data/458ff8c63/9991ca25d058422890f62f6b83c36450 [2018-11-18 16:22:57,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:22:57,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:22:57,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:22:57,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:22:57,088 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:22:57,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6272b034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57, skipping insertion in model container [2018-11-18 16:22:57,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:22:57,131 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:22:57,362 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:22:57,370 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:22:57,496 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:22:57,516 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:22:57,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57 WrapperNode [2018-11-18 16:22:57,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:22:57,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:22:57,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:22:57,517 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:22:57,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:22:57,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:22:57,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:22:57,580 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:22:57,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... [2018-11-18 16:22:57,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:22:57,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:22:57,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:22:57,623 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:22:57,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/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 16:22:57,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:22:57,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:22:57,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:22:58,577 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:22:58,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:22:58 BoogieIcfgContainer [2018-11-18 16:22:58,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:22:58,579 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:22:58,579 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:22:58,581 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:22:58,582 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:22:58,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:22:57" (1/3) ... [2018-11-18 16:22:58,583 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@354e7b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:22:58, skipping insertion in model container [2018-11-18 16:22:58,583 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:22:58,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:57" (2/3) ... [2018-11-18 16:22:58,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@354e7b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:22:58, skipping insertion in model container [2018-11-18 16:22:58,584 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:22:58,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:22:58" (3/3) ... [2018-11-18 16:22:58,586 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product62_true-unreach-call_false-termination.cil.c [2018-11-18 16:22:58,620 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:22:58,620 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:22:58,620 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:22:58,620 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:22:58,620 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:22:58,620 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:22:58,621 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:22:58,621 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:22:58,621 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:22:58,640 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 327 states. [2018-11-18 16:22:58,667 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2018-11-18 16:22:58,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:22:58,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:22:58,674 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:22:58,674 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 16:22:58,674 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:22:58,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 327 states. [2018-11-18 16:22:58,682 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2018-11-18 16:22:58,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:22:58,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:22:58,683 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:22:58,683 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 16:22:58,688 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#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 := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~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~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11;assume { :begin_inline_select_helpers } true; 279#L586true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 212#L579true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 134#L594true main_#t~ret76 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 88#L1002true assume 0 != main_~tmp~11;assume { :begin_inline_setup } true; 158#L979true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 15#L863-3true [2018-11-18 16:22:58,688 INFO L796 eck$LassoCheckResult]: Loop: 15#L863-3true assume true; 14#L863-1true assume !false; 125#L864true assume test_~splverifierCounter~0 < 4; 228#L865true test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 31#L873true assume !(0 != test_~tmp~10); 35#L873-2true test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 284#L883true assume !(0 != test_~tmp___0~3); 292#L883-2true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 207#L893true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 64#L848true assume { :end_inline_startSystem } true; 19#L901-2true assume { :begin_inline_timeShift } true; 71#L611true assume !(0 != ~pumpRunning~0); 80#L611-2true assume !(0 != ~systemActive~0); 186#L618-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 65#L501-5true __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 229#L61true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 222#L67-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 231#L628true assume { :end_inline_timeShift } true; 15#L863-3true [2018-11-18 16:22:58,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:22:58,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 16:22:58,695 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:22:58,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:22:58,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:58,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:22:58,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:22:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:22:58,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:22:58,970 INFO L82 PathProgramCache]: Analyzing trace with hash 431059717, now seen corresponding path program 1 times [2018-11-18 16:22:58,970 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:22:58,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:22:58,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:58,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:22:58,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:22:59,016 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 16:22:59,018 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:22:59,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:22:59,022 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:22:59,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:22:59,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:22:59,038 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 3 states. [2018-11-18 16:22:59,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:22:59,083 INFO L93 Difference]: Finished difference Result 324 states and 428 transitions. [2018-11-18 16:22:59,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:22:59,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 324 states and 428 transitions. [2018-11-18 16:22:59,093 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2018-11-18 16:22:59,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 324 states to 314 states and 417 transitions. [2018-11-18 16:22:59,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 314 [2018-11-18 16:22:59,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 314 [2018-11-18 16:22:59,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 314 states and 417 transitions. [2018-11-18 16:22:59,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:22:59,104 INFO L705 BuchiCegarLoop]: Abstraction has 314 states and 417 transitions. [2018-11-18 16:22:59,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states and 417 transitions. [2018-11-18 16:22:59,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2018-11-18 16:22:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2018-11-18 16:22:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 417 transitions. [2018-11-18 16:22:59,139 INFO L728 BuchiCegarLoop]: Abstraction has 314 states and 417 transitions. [2018-11-18 16:22:59,139 INFO L608 BuchiCegarLoop]: Abstraction has 314 states and 417 transitions. [2018-11-18 16:22:59,140 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:22:59,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 417 transitions. [2018-11-18 16:22:59,142 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2018-11-18 16:22:59,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:22:59,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:22:59,143 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:22:59,143 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] [2018-11-18 16:22:59,144 INFO L794 eck$LassoCheckResult]: Stem: 821#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#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 := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 681#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11;assume { :begin_inline_select_helpers } true; 682#L586 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 947#L579 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 864#L594 main_#t~ret76 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 810#L1002 assume 0 != main_~tmp~11;assume { :begin_inline_setup } true; 811#L979 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 685#L863-3 [2018-11-18 16:22:59,144 INFO L796 eck$LassoCheckResult]: Loop: 685#L863-3 assume true; 683#L863-1 assume !false; 684#L864 assume test_~splverifierCounter~0 < 4; 852#L865 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 717#L873 assume !(0 != test_~tmp~10); 719#L873-2 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 727#L883 assume !(0 != test_~tmp___0~3); 704#L883-2 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 946#L893 assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet75;havoc test_#t~nondet75; 705#L901 assume 0 != test_~tmp___1~1; 694#L901-2 assume { :begin_inline_timeShift } true; 695#L611 assume !(0 != ~pumpRunning~0); 784#L611-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 797#L695 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret53, isMethaneAlarm_~retValue_acc~9;havoc isMethaneAlarm_~retValue_acc~9;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 808#L501 isMethaneAlarm_#t~ret53 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~9 := isMethaneAlarm_#t~ret53;havoc isMethaneAlarm_#t~ret53;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~9; 809#L756 processEnvironment_#t~ret51 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6 := processEnvironment_#t~ret51;havoc processEnvironment_#t~ret51; 837#L699 assume 0 != processEnvironment_~tmp~6;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 838#L746 assume { :end_inline_deactivatePump } true; 943#L695-1 assume { :end_inline_processEnvironment } true; 925#L618-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 775#L501-5 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 776#L61 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 849#L67-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 949#L628 assume { :end_inline_timeShift } true; 685#L863-3 [2018-11-18 16:22:59,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:22:59,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 16:22:59,145 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:22:59,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:22:59,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:22:59,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:22:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:22:59,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:22:59,230 INFO L82 PathProgramCache]: Analyzing trace with hash 793038639, now seen corresponding path program 1 times [2018-11-18 16:22:59,230 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:22:59,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:22:59,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,231 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:22:59,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:22:59,246 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 16:22:59,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:22:59,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:22:59,246 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:22:59,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:22:59,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:22:59,247 INFO L87 Difference]: Start difference. First operand 314 states and 417 transitions. cyclomatic complexity: 105 Second operand 3 states. [2018-11-18 16:22:59,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:22:59,394 INFO L93 Difference]: Finished difference Result 330 states and 416 transitions. [2018-11-18 16:22:59,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:22:59,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 330 states and 416 transitions. [2018-11-18 16:22:59,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 228 [2018-11-18 16:22:59,400 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 330 states to 330 states and 416 transitions. [2018-11-18 16:22:59,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 330 [2018-11-18 16:22:59,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 330 [2018-11-18 16:22:59,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 330 states and 416 transitions. [2018-11-18 16:22:59,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:22:59,406 INFO L705 BuchiCegarLoop]: Abstraction has 330 states and 416 transitions. [2018-11-18 16:22:59,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states and 416 transitions. [2018-11-18 16:22:59,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2018-11-18 16:22:59,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-11-18 16:22:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 416 transitions. [2018-11-18 16:22:59,417 INFO L728 BuchiCegarLoop]: Abstraction has 330 states and 416 transitions. [2018-11-18 16:22:59,417 INFO L608 BuchiCegarLoop]: Abstraction has 330 states and 416 transitions. [2018-11-18 16:22:59,417 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:22:59,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 330 states and 416 transitions. [2018-11-18 16:22:59,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 228 [2018-11-18 16:22:59,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:22:59,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:22:59,420 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:22:59,420 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, 1, 1] [2018-11-18 16:22:59,420 INFO L794 eck$LassoCheckResult]: Stem: 1439#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#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 := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1324#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11;assume { :begin_inline_select_helpers } true; 1325#L586 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1550#L579 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1477#L594 main_#t~ret76 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 1432#L1002 assume 0 != main_~tmp~11;assume { :begin_inline_setup } true; 1433#L979 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1328#L863-3 [2018-11-18 16:22:59,421 INFO L796 eck$LassoCheckResult]: Loop: 1328#L863-3 assume true; 1326#L863-1 assume !false; 1327#L864 assume test_~splverifierCounter~0 < 4; 1466#L865 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 1354#L873 assume !(0 != test_~tmp~10); 1356#L873-2 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 1363#L883 assume !(0 != test_~tmp___0~3); 1344#L883-2 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 1549#L893 assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet75;havoc test_#t~nondet75; 1345#L901 assume 0 != test_~tmp___1~1; 1334#L901-2 assume { :begin_inline_timeShift } true; 1335#L611 assume !(0 != ~pumpRunning~0); 1408#L611-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1420#L695 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1543#L669-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1500#L643-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1501#L541-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1540#L546-3 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 1482#L814-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1458#L814-11 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1446#L820-3 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 1357#L647-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 1359#L635-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1506#L643-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1507#L669-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1546#L695-1 assume { :end_inline_processEnvironment } true; 1531#L618-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1399#L501-5 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 1400#L61 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 1464#L67-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1553#L628 assume { :end_inline_timeShift } true; 1328#L863-3 [2018-11-18 16:22:59,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:22:59,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 16:22:59,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:22:59,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:22:59,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:22:59,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:22:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:22:59,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:22:59,507 INFO L82 PathProgramCache]: Analyzing trace with hash -756503397, now seen corresponding path program 1 times [2018-11-18 16:22:59,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:22:59,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:22:59,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,508 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:22:59,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:22:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:22:59,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:22:59,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1328488873, now seen corresponding path program 1 times [2018-11-18 16:22:59,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:22:59,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:22:59,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:22:59,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:22:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:22:59,647 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 16:22:59,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:22:59,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:22:59,763 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-11-18 16:22:59,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:22:59,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:22:59,841 INFO L87 Difference]: Start difference. First operand 330 states and 416 transitions. cyclomatic complexity: 88 Second operand 5 states. [2018-11-18 16:23:00,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:23:00,185 INFO L93 Difference]: Finished difference Result 1138 states and 1428 transitions. [2018-11-18 16:23:00,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:23:00,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1138 states and 1428 transitions. [2018-11-18 16:23:00,189 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 817 [2018-11-18 16:23:00,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1138 states to 1138 states and 1428 transitions. [2018-11-18 16:23:00,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1138 [2018-11-18 16:23:00,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1138 [2018-11-18 16:23:00,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1138 states and 1428 transitions. [2018-11-18 16:23:00,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:23:00,195 INFO L705 BuchiCegarLoop]: Abstraction has 1138 states and 1428 transitions. [2018-11-18 16:23:00,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states and 1428 transitions. [2018-11-18 16:23:00,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 653. [2018-11-18 16:23:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2018-11-18 16:23:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 817 transitions. [2018-11-18 16:23:00,212 INFO L728 BuchiCegarLoop]: Abstraction has 653 states and 817 transitions. [2018-11-18 16:23:00,212 INFO L608 BuchiCegarLoop]: Abstraction has 653 states and 817 transitions. [2018-11-18 16:23:00,212 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 16:23:00,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 653 states and 817 transitions. [2018-11-18 16:23:00,214 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 456 [2018-11-18 16:23:00,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:23:00,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:23:00,215 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:23:00,215 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, 1, 1, 1, 1] [2018-11-18 16:23:00,216 INFO L794 eck$LassoCheckResult]: Stem: 2931#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#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 := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2811#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11;assume { :begin_inline_select_helpers } true; 2812#L586 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3056#L579 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 2973#L594 main_#t~ret76 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 2923#L1002 assume 0 != main_~tmp~11;assume { :begin_inline_setup } true; 2924#L979 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2815#L863-3 [2018-11-18 16:23:00,216 INFO L796 eck$LassoCheckResult]: Loop: 2815#L863-3 assume true; 2813#L863-1 assume !false; 2814#L864 assume test_~splverifierCounter~0 < 4; 2963#L865 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 3448#L873 assume !(0 != test_~tmp~10); 3447#L873-2 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 3088#L883 assume !(0 != test_~tmp___0~3); 2833#L883-2 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 3089#L893 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3443#L848 assume { :end_inline_startSystem } true; 3442#L901-2 assume { :begin_inline_timeShift } true; 3441#L611 assume !(0 != ~pumpRunning~0); 3415#L611-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 3440#L695 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 3221#L669-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 3439#L643-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 3438#L541-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 3437#L546-3 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 3435#L814-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 3400#L814-11 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 3399#L820-3 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 2846#L647-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 2848#L635-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3004#L643-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3005#L669-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3049#L695-1 assume { :end_inline_processEnvironment } true; 3050#L618-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 2889#L501-5 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 2890#L61 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 3068#L533 __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 3061#L67 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2959#L67-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3060#L628 assume { :end_inline_timeShift } true; 2815#L863-3 [2018-11-18 16:23:00,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:00,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 16:23:00,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:00,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:00,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:00,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:00,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:23:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:23:00,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:00,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1095096017, now seen corresponding path program 1 times [2018-11-18 16:23:00,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:00,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:00,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:00,266 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:23:00,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:23:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:23:00,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:00,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1017324565, now seen corresponding path program 1 times [2018-11-18 16:23:00,274 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:00,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:00,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:00,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:00,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:23:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:23:00,442 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2018-11-18 16:24:07,989 WARN L180 SmtUtils]: Spent 1.13 m on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 16:24:35,219 WARN L180 SmtUtils]: Spent 27.23 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 16:24:35,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:24:35 BoogieIcfgContainer [2018-11-18 16:24:35,297 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:24:35,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:24:35,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:24:35,298 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:24:35,299 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:22:58" (3/4) ... [2018-11-18 16:24:35,302 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:24:35,348 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_526d1d62-3ad4-4caa-a0e3-e359cce34e60/bin-2019/uautomizer/witness.graphml [2018-11-18 16:24:35,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:24:35,348 INFO L168 Benchmark]: Toolchain (without parser) took 98264.56 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.7 MB). Free memory was 951.7 MB in the beginning and 1.0 GB in the end (delta: -57.5 MB). Peak memory consumption was 239.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:24:35,349 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:24:35,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -213.0 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:24:35,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.59 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:24:35,350 INFO L168 Benchmark]: Boogie Preprocessor took 42.58 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:24:35,350 INFO L168 Benchmark]: RCFGBuilder took 955.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:24:35,350 INFO L168 Benchmark]: BuchiAutomizer took 96718.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.5 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 29.1 MB). Peak memory consumption was 269.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:24:35,351 INFO L168 Benchmark]: Witness Printer took 50.74 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:24:35,354 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 431.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -213.0 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.59 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.58 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 955.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 96718.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.5 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 29.1 MB). Peak memory consumption was 269.2 MB. Max. memory is 11.5 GB. * Witness Printer took 50.74 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 653 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 96.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 95.9s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 485 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 653 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1207 SDtfs, 1942 SDslu, 1655 SDs, 0 SdLazy, 208 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 863]: 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, "Pump(System:"=31, "On"=0, ",Meth:"=0, "OK"=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a3f2b8c=0, "i > 0 && i <= this->argsCount"=15, ") "=0, tmp___1=0, "__utac__get_this_arg"=23, "Env(Water:%i"=8, tmp=0, cleanupTimeShifts=4, "OK"=27, tmp=1, "__utac__get_this_arg"=0, waterLevel=1, "i > 0 && i <= this->argsCount"=0, \result=1, head=0, pumpRunning=0, "On"=33, retValue_acc=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, \result=1, ",Pump:"=35, retValue_acc=0, tmp___0=0, tmp=1, retValue_acc=1, "i > 0 && i <= this->argsCount"=18, "__utac__get_this_arg"=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3653f5dd=0, "Off"=34, head=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=22, tmp=0, "__utac__get_this_argtype"=16, "Env(Water:%i"=0, "libacc.c"=0, "CRIT"=28, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f6dcd44=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71e2be67=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79bcb7c6=0, ")"=0, ",Pump:"=0, "On"=36, "CRIT"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ca54776=0, tmp___0=0, "Off"=0, "\n"=0, ",Meth:"=11, tmp___0=1, tmp=0, "libacc.c"=14, "libacc.c"=20, "libacc.c"=17, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, NULL=0, systemActive=1, "\n"=39, \result=1, "__utac__get_this_argtype"=0, retValue_acc=0, \result=0, ")"=29, "Pump(System:"=0, "On"=0, retValue_acc=0, \result=0, "i > 0 && i <= this->argsCount"=26, "__utac__get_this_argtype"=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f112aa6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70305092=40, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4142fa55=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@104eeaf2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3873e1df=0, ") "=38, "libacc.c"=24, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47a2e8eb=0, tmp=0, tmp___2=40, splverifierCounter=0, "Off"=0, \result=0, tmp___1=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "Off"=37} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 863]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_arg" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_arg" [L429] FCALL "i > 0 && i <= this->argsCount" [L429] FCALL "libacc.c" [L430] FCALL "__utac__get_this_argtype" [L436] FCALL "i > 0 && i <= this->argsCount" [L436] FCALL "libacc.c" [L437] FCALL "__utac__get_this_argtype" [L510] FCALL "Env(Water:%i" [L511] FCALL ",Meth:" [L515] FCALL "CRIT" [L519] FCALL "OK" [L523] FCALL ")" [L774] FCALL "Pump(System:" [L778] FCALL "On" [L782] FCALL "Off" [L786] FCALL ",Pump:" [L790] FCALL "On" [L794] FCALL "Off" [L798] FCALL ") " [L800] FCALL "\n" [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L604] int pumpRunning = 0; [L605] int systemActive = 1; [L920] int cleanupTimeShifts = 4; [L255] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L993] int retValue_acc ; [L994] int tmp ; [L998] FCALL select_helpers() [L999] FCALL select_features() [L1000] CALL, EXPR valid_product() [L590] int retValue_acc ; [L593] retValue_acc = 1 [L594] RET return (retValue_acc); [L1000] EXPR valid_product() [L1000] tmp = valid_product() [L1002] COND TRUE \read(tmp) [L1004] FCALL setup() [L1005] CALL runTest() [L987] CALL test() [L854] int splverifierCounter ; [L855] int tmp ; [L856] int tmp___0 ; [L857] int tmp___1 ; [L858] int tmp___2 ; [L861] splverifierCounter = 0 Loop: [L863] COND TRUE 1 [L865] COND TRUE splverifierCounter < 4 [L871] tmp = __VERIFIER_nondet_int() [L873] COND FALSE !(\read(tmp)) [L881] tmp___0 = __VERIFIER_nondet_int() [L883] COND FALSE !(\read(tmp___0)) [L891] tmp___2 = __VERIFIER_nondet_int() [L893] COND TRUE \read(tmp___2) [L895] CALL startSystem() [L847] RET systemActive = 1 [L895] startSystem() [L908] CALL timeShift() [L611] COND FALSE !(\read(pumpRunning)) [L618] COND TRUE \read(systemActive) [L620] CALL processEnvironment() [L692] int tmp ; [L695] COND FALSE !(\read(pumpRunning)) [L710] CALL processEnvironment__wrappee__methaneQuery() [L666] int tmp ; [L669] COND FALSE !(\read(pumpRunning)) [L684] CALL processEnvironment__wrappee__highWaterSensor() [L640] int tmp ; [L643] COND TRUE ! pumpRunning [L645] CALL, EXPR isHighWaterLevel() [L806] int retValue_acc ; [L807] int tmp ; [L808] int tmp___0 ; [L812] CALL, EXPR isHighWaterSensorDry() [L538] int retValue_acc ; [L541] COND TRUE waterLevel < 2 [L542] retValue_acc = 1 [L543] RET return (retValue_acc); [L812] EXPR isHighWaterSensorDry() [L812] tmp = isHighWaterSensorDry() [L814] COND TRUE \read(tmp) [L815] tmp___0 = 0 [L819] retValue_acc = tmp___0 [L820] RET return (retValue_acc); [L645] EXPR isHighWaterLevel() [L645] tmp = isHighWaterLevel() [L647] COND FALSE !(\read(tmp)) [L653] RET, FCALL processEnvironment__wrappee__base() [L684] RET processEnvironment__wrappee__highWaterSensor() [L710] RET processEnvironment__wrappee__methaneQuery() [L620] processEnvironment() [L626] CALL __utac_acc__Specification3_spec__1() [L53] int tmp ; [L54] int tmp___0 ; [L55] int tmp___1 ; [L59] CALL, EXPR isMethaneLevelCritical() [L497] int retValue_acc ; [L500] retValue_acc = methaneLevelCritical [L501] RET return (retValue_acc); [L59] EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) [L65] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] RET return (retValue_acc); [L65] EXPR getWaterLevel() [L65] tmp___0 = getWaterLevel() [L67] COND FALSE, RET !(tmp___0 == 2) [L626] RET __utac_acc__Specification3_spec__1() [L908] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...