./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/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 525453629ce87b69ed1d4100e13fdb9e0c8a872a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:26:36,463 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:26:36,464 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:26:36,472 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:26:36,472 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:26:36,473 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:26:36,474 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:26:36,475 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:26:36,476 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:26:36,476 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:26:36,477 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:26:36,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:26:36,477 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:26:36,478 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:26:36,479 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:26:36,479 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:26:36,480 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:26:36,481 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:26:36,482 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:26:36,483 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:26:36,484 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:26:36,484 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:26:36,486 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:26:36,486 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:26:36,486 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:26:36,487 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:26:36,487 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:26:36,488 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:26:36,488 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:26:36,489 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:26:36,489 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:26:36,489 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:26:36,489 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:26:36,490 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:26:36,490 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:26:36,491 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:26:36,491 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 14:26:36,505 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:26:36,505 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:26:36,506 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:26:36,506 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:26:36,506 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:26:36,506 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:26:36,506 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:26:36,507 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:26:36,507 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:26:36,507 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:26:36,507 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:26:36,507 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:26:36,507 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:26:36,507 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:26:36,508 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:26:36,508 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:26:36,508 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:26:36,508 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:26:36,508 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:26:36,508 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:26:36,508 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:26:36,508 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:26:36,509 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:26:36,509 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:26:36,509 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:26:36,509 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:26:36,509 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:26:36,509 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:26:36,509 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:26:36,510 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:26:36,510 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:26:36,510 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:26:36,511 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_6e7780cc-c0e9-4f89-8354-94c197918ace/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 -> 525453629ce87b69ed1d4100e13fdb9e0c8a872a [2018-11-18 14:26:36,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:26:36,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:26:36,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:26:36,546 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:26:36,546 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:26:36,547 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product56_false-unreach-call_false-termination.cil.c [2018-11-18 14:26:36,579 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/data/2c0bac29a/f43624a9bfac46afbfa834647b08e65f/FLAG4ef55a3a4 [2018-11-18 14:26:36,928 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:26:36,929 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/sv-benchmarks/c/product-lines/minepump_spec3_product56_false-unreach-call_false-termination.cil.c [2018-11-18 14:26:36,939 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/data/2c0bac29a/f43624a9bfac46afbfa834647b08e65f/FLAG4ef55a3a4 [2018-11-18 14:26:36,950 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/data/2c0bac29a/f43624a9bfac46afbfa834647b08e65f [2018-11-18 14:26:36,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:26:36,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:26:36,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:26:36,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:26:36,958 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:26:36,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:26:36" (1/1) ... [2018-11-18 14:26:36,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:36, skipping insertion in model container [2018-11-18 14:26:36,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:26:36" (1/1) ... [2018-11-18 14:26:36,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:26:36,995 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:26:37,178 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:26:37,186 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:26:37,289 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:26:37,314 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:26:37,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37 WrapperNode [2018-11-18 14:26:37,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:26:37,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:26:37,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:26:37,315 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:26:37,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... [2018-11-18 14:26:37,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... [2018-11-18 14:26:37,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:26:37,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:26:37,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:26:37,370 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:26:37,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... [2018-11-18 14:26:37,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... [2018-11-18 14:26:37,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... [2018-11-18 14:26:37,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... [2018-11-18 14:26:37,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... [2018-11-18 14:26:37,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... [2018-11-18 14:26:37,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... [2018-11-18 14:26:37,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:26:37,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:26:37,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:26:37,408 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:26:37,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:26:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:26:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:26:37,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:26:38,117 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:26:38,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:26:38 BoogieIcfgContainer [2018-11-18 14:26:38,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:26:38,118 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:26:38,118 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:26:38,120 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:26:38,121 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:26:38,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:26:36" (1/3) ... [2018-11-18 14:26:38,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4449efc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:26:38, skipping insertion in model container [2018-11-18 14:26:38,122 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:26:38,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:37" (2/3) ... [2018-11-18 14:26:38,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4449efc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:26:38, skipping insertion in model container [2018-11-18 14:26:38,122 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:26:38,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:26:38" (3/3) ... [2018-11-18 14:26:38,124 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product56_false-unreach-call_false-termination.cil.c [2018-11-18 14:26:38,156 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:26:38,157 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:26:38,157 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:26:38,157 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:26:38,157 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:26:38,157 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:26:38,158 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:26:38,158 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:26:38,158 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:26:38,173 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 283 states. [2018-11-18 14:26:38,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 187 [2018-11-18 14:26:38,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:26:38,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:26:38,203 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:38,203 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:38,204 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:26:38,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 283 states. [2018-11-18 14:26:38,209 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 187 [2018-11-18 14:26:38,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:26:38,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:26:38,210 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:38,210 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:38,214 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.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];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 14#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 66#L532true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 266#L525true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 229#L540true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 104#L130true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 35#L103true 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; 99#L950-3true [2018-11-18 14:26:38,214 INFO L796 eck$LassoCheckResult]: Loop: 99#L950-3true assume true; 232#L950-1true assume !false; 33#L951true assume test_~splverifierCounter~0 < 4; 125#L952true test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 271#L960true assume !(0 != test_~tmp~10); 261#L960-2true test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 211#L970true assume !(0 != test_~tmp___0~3); 184#L970-2true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 113#L980true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 117#L936true assume { :end_inline_startSystem } true; 250#L988-2true assume { :begin_inline_timeShift } true; 278#L701true assume !(0 != ~pumpRunning~0); 282#L701-2true assume !(0 != ~systemActive~0); 82#L708-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 259#L630-1true __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 263#L558true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 242#L564-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 252#L718true assume { :end_inline_timeShift } true; 99#L950-3true [2018-11-18 14:26:38,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:38,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 14:26:38,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:38,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:38,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:38,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:38,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:38,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1794845051, now seen corresponding path program 1 times [2018-11-18 14:26:38,371 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:38,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:38,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:38,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:26:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:26:38,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:26:38,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:26:38,411 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:26:38,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:26:38,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:26:38,421 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 3 states. [2018-11-18 14:26:38,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:26:38,505 INFO L93 Difference]: Finished difference Result 551 states and 739 transitions. [2018-11-18 14:26:38,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:26:38,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 551 states and 739 transitions. [2018-11-18 14:26:38,514 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 364 [2018-11-18 14:26:38,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 551 states to 531 states and 718 transitions. [2018-11-18 14:26:38,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 531 [2018-11-18 14:26:38,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 531 [2018-11-18 14:26:38,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 531 states and 718 transitions. [2018-11-18 14:26:38,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:26:38,527 INFO L705 BuchiCegarLoop]: Abstraction has 531 states and 718 transitions. [2018-11-18 14:26:38,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states and 718 transitions. [2018-11-18 14:26:38,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 528. [2018-11-18 14:26:38,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-11-18 14:26:38,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 714 transitions. [2018-11-18 14:26:38,568 INFO L728 BuchiCegarLoop]: Abstraction has 528 states and 714 transitions. [2018-11-18 14:26:38,568 INFO L608 BuchiCegarLoop]: Abstraction has 528 states and 714 transitions. [2018-11-18 14:26:38,568 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:26:38,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 528 states and 714 transitions. [2018-11-18 14:26:38,571 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 361 [2018-11-18 14:26:38,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:26:38,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:26:38,572 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:38,572 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 14:26:38,572 INFO L794 eck$LassoCheckResult]: Stem: 1024#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.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];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 863#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 864#L532 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 950#L525 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1127#L540 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 999#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 903#L103 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; 904#L950-3 [2018-11-18 14:26:38,573 INFO L796 eck$LassoCheckResult]: Loop: 904#L950-3 assume true; 1208#L950-1 assume !false; 1206#L951 assume test_~splverifierCounter~0 < 4; 1207#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 1262#L960 assume !(0 != test_~tmp~10); 1260#L960-2 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 1258#L970 assume !(0 != test_~tmp___0~3); 1256#L970-2 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 1255#L980 assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet75;havoc test_#t~nondet75; 1140#L988 assume !(0 != test_~tmp___1~1); 1019#L988-2 assume { :begin_inline_timeShift } true; 1147#L701 assume !(0 != ~pumpRunning~0); 935#L701-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1000#L785 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret53, isMethaneAlarm_~retValue_acc~10;havoc isMethaneAlarm_~retValue_acc~10;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1001#L630 isMethaneAlarm_#t~ret53 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10 := isMethaneAlarm_#t~ret53;havoc isMethaneAlarm_#t~ret53;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~10; 1308#L829 processEnvironment_#t~ret52 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7 := processEnvironment_#t~ret52;havoc processEnvironment_#t~ret52; 1307#L789 assume 0 != processEnvironment_~tmp~7;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1225#L819-1 assume { :end_inline_deactivatePump } true; 1223#L785-1 assume { :end_inline_processEnvironment } true; 1221#L708-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1219#L630-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 1216#L558 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 1214#L564-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1213#L718 assume { :end_inline_timeShift } true; 904#L950-3 [2018-11-18 14:26:38,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:38,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 14:26:38,573 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:38,573 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:38,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:38,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:38,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:38,633 INFO L82 PathProgramCache]: Analyzing trace with hash -948702180, now seen corresponding path program 1 times [2018-11-18 14:26:38,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:38,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:38,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,634 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:26:38,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:26:38,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:26:38,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:26:38,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:26:38,661 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:26:38,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:26:38,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:26:38,662 INFO L87 Difference]: Start difference. First operand 528 states and 714 transitions. cyclomatic complexity: 189 Second operand 3 states. [2018-11-18 14:26:38,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:26:38,764 INFO L93 Difference]: Finished difference Result 566 states and 727 transitions. [2018-11-18 14:26:38,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:26:38,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 566 states and 727 transitions. [2018-11-18 14:26:38,767 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 399 [2018-11-18 14:26:38,768 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 566 states to 566 states and 727 transitions. [2018-11-18 14:26:38,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 566 [2018-11-18 14:26:38,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 566 [2018-11-18 14:26:38,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 566 states and 727 transitions. [2018-11-18 14:26:38,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:26:38,770 INFO L705 BuchiCegarLoop]: Abstraction has 566 states and 727 transitions. [2018-11-18 14:26:38,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states and 727 transitions. [2018-11-18 14:26:38,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2018-11-18 14:26:38,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2018-11-18 14:26:38,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 727 transitions. [2018-11-18 14:26:38,785 INFO L728 BuchiCegarLoop]: Abstraction has 566 states and 727 transitions. [2018-11-18 14:26:38,785 INFO L608 BuchiCegarLoop]: Abstraction has 566 states and 727 transitions. [2018-11-18 14:26:38,785 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:26:38,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 566 states and 727 transitions. [2018-11-18 14:26:38,788 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 399 [2018-11-18 14:26:38,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:26:38,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:26:38,789 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:38,790 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 14:26:38,790 INFO L794 eck$LassoCheckResult]: Stem: 2084#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.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];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1955#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 1956#L532 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2022#L525 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 2180#L540 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 2060#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1984#L103 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; 1985#L950-3 [2018-11-18 14:26:38,790 INFO L796 eck$LassoCheckResult]: Loop: 1985#L950-3 assume true; 2255#L950-1 assume !false; 2256#L951 assume test_~splverifierCounter~0 < 4; 2249#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 2250#L960 assume !(0 != test_~tmp~10); 2288#L960-2 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 2281#L970 assume !(0 != test_~tmp___0~3); 2148#L970-2 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 2071#L980 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2072#L936 assume { :end_inline_startSystem } true; 2077#L988-2 assume { :begin_inline_timeShift } true; 2199#L701 assume !(0 != ~pumpRunning~0); 2221#L701-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2061#L785 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret51, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 2062#L759-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret50, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2119#L733-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2007#L670-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2008#L675-3 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 2047#L887-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2162#L887-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2159#L893-3 processEnvironment__wrappee__highWaterSensor_#t~ret50 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret50;havoc processEnvironment__wrappee__highWaterSensor_#t~ret50; 2089#L737-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 2011#L725-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2012#L733-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2348#L759-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1964#L785-1 assume { :end_inline_processEnvironment } true; 2269#L708-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 2268#L630-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 2264#L558 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 2263#L564-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2292#L718 assume { :end_inline_timeShift } true; 1985#L950-3 [2018-11-18 14:26:38,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:38,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 14:26:38,791 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:38,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:38,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:38,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:38,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:38,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1778314811, now seen corresponding path program 1 times [2018-11-18 14:26:38,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:38,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:38,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,836 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:26:38,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:38,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:38,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1206329335, now seen corresponding path program 1 times [2018-11-18 14:26:38,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:38,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:38,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:38,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:26:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:26:38,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:26:38,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:26:39,076 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-11-18 14:26:39,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:26:39,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:26:39,119 INFO L87 Difference]: Start difference. First operand 566 states and 727 transitions. cyclomatic complexity: 164 Second operand 5 states. [2018-11-18 14:26:39,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:26:39,307 INFO L93 Difference]: Finished difference Result 1957 states and 2498 transitions. [2018-11-18 14:26:39,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:26:39,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1957 states and 2498 transitions. [2018-11-18 14:26:39,318 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1462 [2018-11-18 14:26:39,325 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1957 states to 1957 states and 2498 transitions. [2018-11-18 14:26:39,325 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1957 [2018-11-18 14:26:39,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1957 [2018-11-18 14:26:39,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1957 states and 2498 transitions. [2018-11-18 14:26:39,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:26:39,330 INFO L705 BuchiCegarLoop]: Abstraction has 1957 states and 2498 transitions. [2018-11-18 14:26:39,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states and 2498 transitions. [2018-11-18 14:26:39,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1125. [2018-11-18 14:26:39,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1125 states. [2018-11-18 14:26:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1431 transitions. [2018-11-18 14:26:39,354 INFO L728 BuchiCegarLoop]: Abstraction has 1125 states and 1431 transitions. [2018-11-18 14:26:39,354 INFO L608 BuchiCegarLoop]: Abstraction has 1125 states and 1431 transitions. [2018-11-18 14:26:39,354 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 14:26:39,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1125 states and 1431 transitions. [2018-11-18 14:26:39,359 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 798 [2018-11-18 14:26:39,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:26:39,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:26:39,361 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:39,361 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 14:26:39,361 INFO L794 eck$LassoCheckResult]: Stem: 4624#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.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];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 4496#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 4497#L532 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4561#L525 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 4715#L540 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 4600#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 4525#L103 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; 4526#L950-3 [2018-11-18 14:26:39,361 INFO L796 eck$LassoCheckResult]: Loop: 4526#L950-3 assume true; 4593#L950-1 assume !false; 4520#L951 assume test_~splverifierCounter~0 < 4; 4521#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 4628#L960 assume !(0 != test_~tmp~10); 4647#L960-2 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 4745#L970 assume !(0 != test_~tmp___0~3); 5046#L970-2 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 5115#L980 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 5105#L936 assume { :end_inline_startSystem } true; 4733#L988-2 assume { :begin_inline_timeShift } true; 4756#L701 assume !(0 != ~pumpRunning~0); 4757#L701-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 4601#L785 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret51, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 4602#L759-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret50, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 4658#L733-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 4547#L670-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 4548#L675-3 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 4586#L887-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 4695#L887-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 4694#L893-3 processEnvironment__wrappee__highWaterSensor_#t~ret50 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret50;havoc processEnvironment__wrappee__highWaterSensor_#t~ret50; 4629#L737-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 4630#L725-6 assume { :end_inline_processEnvironment__wrappee__base } true; 5117#L733-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5116#L759-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 5060#L785-1 assume { :end_inline_processEnvironment } true; 5059#L708-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 4743#L630-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 4744#L558 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 4680#L662 __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 4681#L564 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 5056#L564-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4740#L718 assume { :end_inline_timeShift } true; 4526#L950-3 [2018-11-18 14:26:39,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:39,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 14:26:39,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:39,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:39,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:39,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:39,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:39,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:39,393 INFO L82 PathProgramCache]: Analyzing trace with hash -435192690, now seen corresponding path program 1 times [2018-11-18 14:26:39,393 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:39,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:39,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:39,394 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:26:39,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:39,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:39,405 INFO L82 PathProgramCache]: Analyzing trace with hash -357421238, now seen corresponding path program 1 times [2018-11-18 14:26:39,405 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:26:39,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:26:39,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:39,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:39,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:39,564 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2018-11-18 14:27:30,256 WARN L180 SmtUtils]: Spent 50.64 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 14:27:55,054 WARN L180 SmtUtils]: Spent 24.80 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 14:27:55,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:27:55 BoogieIcfgContainer [2018-11-18 14:27:55,104 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:27:55,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:27:55,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:27:55,105 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:27:55,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:26:38" (3/4) ... [2018-11-18 14:27:55,108 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 14:27:55,155 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6e7780cc-c0e9-4f89-8354-94c197918ace/bin-2019/uautomizer/witness.graphml [2018-11-18 14:27:55,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:27:55,156 INFO L168 Benchmark]: Toolchain (without parser) took 78202.41 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.7 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -227.1 MB). Peak memory consumption was 90.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:55,156 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:27:55,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:55,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:55,157 INFO L168 Benchmark]: Boogie Preprocessor took 37.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:55,157 INFO L168 Benchmark]: RCFGBuilder took 709.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.6 MB). Peak memory consumption was 88.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:55,157 INFO L168 Benchmark]: BuchiAutomizer took 76986.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -177.2 MB). Peak memory consumption was 310.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:55,158 INFO L168 Benchmark]: Witness Printer took 50.35 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:55,159 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 360.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 709.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.6 MB). Peak memory consumption was 88.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 76986.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -177.2 MB). Peak memory consumption was 310.6 MB. Max. memory is 11.5 GB. * Witness Printer took 50.35 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 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 1125 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 76.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 76.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 835 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 1125 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1104 SDtfs, 1710 SDslu, 1890 SDs, 0 SdLazy, 127 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 950]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f88f49d=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b58df5f=0, "Pump(System:"=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43fba9aa=0, "On"=0, "Env(Water:%i"=0, "CRIT"=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d83a6a2=0, "__utac__get_this_argtype"=22, ") "=0, tmp___1=0, "libacc.c"=27, "libacc.c"=31, "libacc.c"=35, cleanupTimeShifts=4, tmp=0, "CRIT"=18, "libacc.c"=0, waterLevel=1, "__utac__get_this_argtype"=0, ")"=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, "On"=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a0f1a49=0, "__utac__get_this_argtype"=0, \result=1, ",Pump:"=8, retValue_acc=0, tmp___0=0, tmp=1, retValue_acc=1, "__utac__get_this_argtype"=26, "Off"=12, head=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_arg"=29, "libacc.c"=23, tmp=0, "i > 0 && i <= this->argsCount"=0, ",Meth:"=19, "OK"=0, retValue_acc=0, ",Pump:"=0, "On"=11, ",Meth:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@115087bf=0, tmp___0=0, "Off"=0, "\n"=0, "Env(Water:%i"=20, tmp=0, tmp___0=1, "i > 0 && i <= this->argsCount"=28, "i > 0 && i <= this->argsCount"=24, tmp=0, "__utac__get_this_arg"=0, "libacc.c"=0, NULL=0, systemActive=1, "\n"=40, \result=1, "libacc.c"=0, retValue_acc=0, \result=0, "OK"=17, "Pump(System:"=0, "On"=0, ")"=16, \result=0, "__utac__get_this_arg"=34, "i > 0 && i <= this->argsCount"=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e05123=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72f4cd92=172, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ebeb124=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3576eabb=0, ") "=39, "i > 0 && i <= this->argsCount"=33, tmp=0, tmp___2=172, splverifierCounter=0, "Off"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d58712a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e21dc35=0, tmp___1=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=36, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "Off"=38} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 950]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L441] FCALL "i > 0 && i <= this->argsCount" [L441] FCALL "libacc.c" [L442] FCALL "__utac__get_this_arg" [L448] FCALL "i > 0 && i <= this->argsCount" [L448] FCALL "libacc.c" [L449] FCALL "__utac__get_this_arg" [L487] FCALL "i > 0 && i <= this->argsCount" [L487] FCALL "libacc.c" [L488] FCALL "__utac__get_this_argtype" [L494] FCALL "i > 0 && i <= this->argsCount" [L494] FCALL "libacc.c" [L495] FCALL "__utac__get_this_argtype" [L639] FCALL "Env(Water:%i" [L640] FCALL ",Meth:" [L644] FCALL "CRIT" [L648] FCALL "OK" [L652] FCALL ")" [L847] FCALL "Pump(System:" [L851] FCALL "On" [L855] FCALL "Off" [L859] FCALL ",Pump:" [L863] FCALL "On" [L867] FCALL "Off" [L871] FCALL ") " [L873] FCALL "\n" [L40] int cleanupTimeShifts = 4; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] RET return (retValue_acc); [L128] EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 Loop: [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND FALSE !(\read(tmp)) [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND TRUE \read(tmp___2) [L982] CALL startSystem() [L935] RET systemActive = 1 [L982] startSystem() [L997] CALL timeShift() [L701] COND FALSE !(\read(pumpRunning)) [L708] COND TRUE \read(systemActive) [L710] CALL processEnvironment() [L782] int tmp ; [L785] COND FALSE !(\read(pumpRunning)) [L800] CALL processEnvironment__wrappee__lowWaterSensor() [L756] int tmp ; [L759] COND FALSE !(\read(pumpRunning)) [L774] CALL processEnvironment__wrappee__highWaterSensor() [L730] int tmp ; [L733] COND TRUE ! pumpRunning [L735] CALL, EXPR isHighWaterLevel() [L879] int retValue_acc ; [L880] int tmp ; [L881] int tmp___0 ; [L885] CALL, EXPR isHighWaterSensorDry() [L667] int retValue_acc ; [L670] COND TRUE waterLevel < 2 [L671] retValue_acc = 1 [L672] RET return (retValue_acc); [L885] EXPR isHighWaterSensorDry() [L885] tmp = isHighWaterSensorDry() [L887] COND TRUE \read(tmp) [L888] tmp___0 = 0 [L892] retValue_acc = tmp___0 [L893] RET return (retValue_acc); [L735] EXPR isHighWaterLevel() [L735] tmp = isHighWaterLevel() [L737] COND FALSE !(\read(tmp)) [L743] RET, FCALL processEnvironment__wrappee__base() [L774] RET processEnvironment__wrappee__highWaterSensor() [L800] RET processEnvironment__wrappee__lowWaterSensor() [L710] processEnvironment() [L716] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] RET return (retValue_acc); [L556] EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] RET return (retValue_acc); [L562] EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND FALSE, RET !(tmp___0 == 2) [L716] RET __utac_acc__Specification3_spec__1() [L997] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...