./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/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 548cbaf589264b5429347049095271c63f36d598 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-10-22 08:58:16,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:16,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:16,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:16,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:16,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:16,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:16,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:16,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:16,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:16,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:16,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:16,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:16,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:16,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:16,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:16,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:16,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:16,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:16,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:16,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:16,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:16,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:16,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:16,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:16,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:16,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:16,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:16,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:16,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:16,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:16,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:16,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:16,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:16,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:16,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:16,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:16,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:16,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:16,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:16,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:16,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:58:16,403 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:16,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:16,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:16,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:16,408 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:16,409 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:58:16,409 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:58:16,409 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:58:16,409 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:58:16,410 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:58:16,410 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:58:16,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:16,410 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:16,410 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:16,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:16,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:16,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:16,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:58:16,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:58:16,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:58:16,412 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:16,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:16,412 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:58:16,412 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:16,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:58:16,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:16,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:16,413 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:58:16,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:16,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:16,414 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:58:16,415 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:58:16,415 INFO L138 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_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/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 -> 548cbaf589264b5429347049095271c63f36d598 [2019-10-22 08:58:16,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:16,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:16,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:16,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:16,471 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:16,472 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2019-10-22 08:58:16,527 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/data/42c14916b/8a5183a26ee343b7860705b7cbfb2a10/FLAGa838fa745 [2019-10-22 08:58:17,000 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:17,002 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2019-10-22 08:58:17,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/data/42c14916b/8a5183a26ee343b7860705b7cbfb2a10/FLAGa838fa745 [2019-10-22 08:58:17,491 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/data/42c14916b/8a5183a26ee343b7860705b7cbfb2a10 [2019-10-22 08:58:17,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:17,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:17,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:17,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:17,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:17,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@521e9bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17, skipping insertion in model container [2019-10-22 08:58:17,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,512 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:17,554 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:18,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:18,023 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:18,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:18,153 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:18,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18 WrapperNode [2019-10-22 08:58:18,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:18,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:18,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:18,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:18,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:18,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:18,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:18,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:18,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:18,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:18,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:18,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:18,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/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 [2019-10-22 08:58:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:58:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:19,346 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:19,346 INFO L284 CfgBuilder]: Removed 294 assume(true) statements. [2019-10-22 08:58:19,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:19 BoogieIcfgContainer [2019-10-22 08:58:19,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:19,349 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:58:19,349 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:58:19,352 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:58:19,353 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:19,353 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:58:17" (1/3) ... [2019-10-22 08:58:19,355 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75e3817b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:19, skipping insertion in model container [2019-10-22 08:58:19,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:19,355 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (2/3) ... [2019-10-22 08:58:19,355 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75e3817b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:19, skipping insertion in model container [2019-10-22 08:58:19,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:19,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:19" (3/3) ... [2019-10-22 08:58:19,357 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2019-10-22 08:58:19,407 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:58:19,407 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:58:19,407 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:58:19,407 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:19,408 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:19,408 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:58:19,408 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:19,408 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:58:19,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 197 states. [2019-10-22 08:58:19,461 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2019-10-22 08:58:19,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:19,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:19,470 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:19,470 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:19,470 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:58:19,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 197 states. [2019-10-22 08:58:19,479 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2019-10-22 08:58:19,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:19,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:19,480 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:19,480 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:19,485 INFO L791 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 79#L534true 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; 167#L542true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 170#L498true assume 0 != main_~tmp~3; 114#L469true ~switchedOnBeforeTS~0 := 0; 81#L985true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 33#L1006-1true [2019-10-22 08:58:19,485 INFO L793 eck$LassoCheckResult]: Loop: 33#L1006-1true assume !false; 111#L568true assume test_~splverifierCounter~0 < 4; 199#L569true test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 8#L577true assume !(0 != test_~tmp~4); 11#L577-1true test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 73#L587true assume !(0 != test_~tmp___0~0); 74#L587-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 192#L597true assume 0 != test_~tmp___2~0; 161#L603-1true havoc __utac_acc__Specification5_spec__2_#t~ret73;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 43#L885true __utac_acc__Specification5_spec__2_#t~ret73 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret73;havoc __utac_acc__Specification5_spec__2_#t~ret73; 30#L995true assume !(0 != ~pumpRunning~0); 88#L748true assume !(0 != ~systemActive~0); 121#L755true havoc __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_#t~ret75, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 76#L705true __utac_acc__Specification5_spec__3_#t~ret74 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 29#L1006true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 33#L1006-1true [2019-10-22 08:58:19,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-10-22 08:58:19,499 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,499 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739294854] [2019-10-22 08:58:19,499 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,499 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,373 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,375 INFO L82 PathProgramCache]: Analyzing trace with hash -236750955, now seen corresponding path program 1 times [2019-10-22 08:58:20,375 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958430382] [2019-10-22 08:58:20,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,404 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1697274255, now seen corresponding path program 1 times [2019-10-22 08:58:20,406 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,406 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374492497] [2019-10-22 08:58:20,406 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,407 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:20,571 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374492497] [2019-10-22 08:58:20,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:20,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:20,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010414170] [2019-10-22 08:58:20,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:20,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:20,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:20,717 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 6 states. [2019-10-22 08:58:20,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:20,942 INFO L93 Difference]: Finished difference Result 445 states and 652 transitions. [2019-10-22 08:58:20,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:20,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 652 transitions. [2019-10-22 08:58:20,955 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 291 [2019-10-22 08:58:20,964 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 424 states and 631 transitions. [2019-10-22 08:58:20,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 424 [2019-10-22 08:58:20,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 424 [2019-10-22 08:58:20,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 424 states and 631 transitions. [2019-10-22 08:58:20,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:20,970 INFO L688 BuchiCegarLoop]: Abstraction has 424 states and 631 transitions. [2019-10-22 08:58:20,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states and 631 transitions. [2019-10-22 08:58:21,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 239. [2019-10-22 08:58:21,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-10-22 08:58:21,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 353 transitions. [2019-10-22 08:58:21,025 INFO L711 BuchiCegarLoop]: Abstraction has 239 states and 353 transitions. [2019-10-22 08:58:21,026 INFO L591 BuchiCegarLoop]: Abstraction has 239 states and 353 transitions. [2019-10-22 08:58:21,026 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:58:21,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 239 states and 353 transitions. [2019-10-22 08:58:21,036 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2019-10-22 08:58:21,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:21,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:21,037 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:21,037 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:21,037 INFO L791 eck$LassoCheckResult]: Stem: 845#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0; 676#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 677#L534 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; 843#L542 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 844#L498 assume 0 != main_~tmp~3; 793#L469 ~switchedOnBeforeTS~0 := 0; 794#L985 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 712#L1006-1 [2019-10-22 08:58:21,038 INFO L793 eck$LassoCheckResult]: Loop: 712#L1006-1 assume !false; 721#L568 assume test_~splverifierCounter~0 < 4; 786#L569 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 668#L577 assume !(0 != test_~tmp~4); 670#L577-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 675#L587 assume !(0 != test_~tmp___0~0); 819#L587-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 823#L597 assume 0 != test_~tmp___2~0; 839#L603-1 havoc __utac_acc__Specification5_spec__2_#t~ret73;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 748#L885 __utac_acc__Specification5_spec__2_#t~ret73 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret73;havoc __utac_acc__Specification5_spec__2_#t~ret73; 713#L995 assume !(0 != ~pumpRunning~0); 715#L748 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 821#L832 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret52, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 822#L806-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 754#L780-3 assume !(0 == ~pumpRunning~0); 755#L755 havoc __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_#t~ret75, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 804#L705 __utac_acc__Specification5_spec__3_#t~ret74 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 711#L1006 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 712#L1006-1 [2019-10-22 08:58:21,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:21,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-10-22 08:58:21,038 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:21,039 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640735695] [2019-10-22 08:58:21,039 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:21,039 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:21,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:21,551 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:21,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:21,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1192194302, now seen corresponding path program 1 times [2019-10-22 08:58:21,552 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:21,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213016842] [2019-10-22 08:58:21,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:21,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:21,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:21,566 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213016842] [2019-10-22 08:58:21,567 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:21,567 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:21,567 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239573846] [2019-10-22 08:58:21,567 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:58:21,568 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:21,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:21,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:21,568 INFO L87 Difference]: Start difference. First operand 239 states and 353 transitions. cyclomatic complexity: 117 Second operand 3 states. [2019-10-22 08:58:21,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:21,734 INFO L93 Difference]: Finished difference Result 250 states and 344 transitions. [2019-10-22 08:58:21,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:21,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 250 states and 344 transitions. [2019-10-22 08:58:21,737 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2019-10-22 08:58:21,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 250 states to 250 states and 344 transitions. [2019-10-22 08:58:21,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 250 [2019-10-22 08:58:21,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 250 [2019-10-22 08:58:21,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 250 states and 344 transitions. [2019-10-22 08:58:21,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:21,741 INFO L688 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2019-10-22 08:58:21,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states and 344 transitions. [2019-10-22 08:58:21,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2019-10-22 08:58:21,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2019-10-22 08:58:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 344 transitions. [2019-10-22 08:58:21,752 INFO L711 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2019-10-22 08:58:21,752 INFO L591 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2019-10-22 08:58:21,752 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:58:21,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 250 states and 344 transitions. [2019-10-22 08:58:21,754 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2019-10-22 08:58:21,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:21,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:21,755 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:21,755 INFO L850 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] [2019-10-22 08:58:21,755 INFO L791 eck$LassoCheckResult]: Stem: 1317#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0; 1171#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1172#L534 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; 1315#L542 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 1316#L498 assume 0 != main_~tmp~3; 1261#L469 ~switchedOnBeforeTS~0 := 0; 1262#L985 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1320#L1006-1 [2019-10-22 08:58:21,755 INFO L793 eck$LassoCheckResult]: Loop: 1320#L1006-1 assume !false; 1253#L568 assume test_~splverifierCounter~0 < 4; 1254#L569 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 1161#L577 assume !(0 != test_~tmp~4); 1163#L577-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 1168#L587 assume !(0 != test_~tmp___0~0); 1288#L587-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 1372#L597 assume 0 != test_~tmp___2~0; 1371#L603-1 havoc __utac_acc__Specification5_spec__2_#t~ret73;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 1370#L885 __utac_acc__Specification5_spec__2_#t~ret73 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret73;havoc __utac_acc__Specification5_spec__2_#t~ret73; 1203#L995 assume !(0 != ~pumpRunning~0); 1204#L748 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1290#L832 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret52, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 1291#L806-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1233#L780-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, 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;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1234#L713-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1311#L718-3 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 1240#L934-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1241#L934-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1177#L940-3 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 1178#L784-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1295#L755 havoc __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_#t~ret75, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 1387#L705 __utac_acc__Specification5_spec__3_#t~ret74 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 1386#L1006 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 1320#L1006-1 [2019-10-22 08:58:21,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:21,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-10-22 08:58:21,756 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:21,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125079508] [2019-10-22 08:58:21,756 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:21,757 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:21,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:22,087 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:22,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:22,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1771616150, now seen corresponding path program 1 times [2019-10-22 08:58:22,087 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:22,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984403500] [2019-10-22 08:58:22,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:22,125 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984403500] [2019-10-22 08:58:22,125 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:22,125 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:22,126 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694385497] [2019-10-22 08:58:22,126 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:58:22,126 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:22,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:22,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:22,127 INFO L87 Difference]: Start difference. First operand 250 states and 344 transitions. cyclomatic complexity: 97 Second operand 5 states. [2019-10-22 08:58:22,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:22,374 INFO L93 Difference]: Finished difference Result 696 states and 937 transitions. [2019-10-22 08:58:22,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:22,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 696 states and 937 transitions. [2019-10-22 08:58:22,380 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 457 [2019-10-22 08:58:22,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 696 states to 696 states and 937 transitions. [2019-10-22 08:58:22,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 696 [2019-10-22 08:58:22,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 696 [2019-10-22 08:58:22,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 696 states and 937 transitions. [2019-10-22 08:58:22,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:22,398 INFO L688 BuchiCegarLoop]: Abstraction has 696 states and 937 transitions. [2019-10-22 08:58:22,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states and 937 transitions. [2019-10-22 08:58:22,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 493. [2019-10-22 08:58:22,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2019-10-22 08:58:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 660 transitions. [2019-10-22 08:58:22,432 INFO L711 BuchiCegarLoop]: Abstraction has 493 states and 660 transitions. [2019-10-22 08:58:22,433 INFO L591 BuchiCegarLoop]: Abstraction has 493 states and 660 transitions. [2019-10-22 08:58:22,433 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 08:58:22,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 493 states and 660 transitions. [2019-10-22 08:58:22,436 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 352 [2019-10-22 08:58:22,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:22,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:22,437 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:22,439 INFO L850 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] [2019-10-22 08:58:22,440 INFO L791 eck$LassoCheckResult]: Stem: 2280#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0; 2134#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2135#L534 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; 2278#L542 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 2279#L498 assume 0 != main_~tmp~3; 2222#L469 ~switchedOnBeforeTS~0 := 0; 2223#L985 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2169#L1006-1 [2019-10-22 08:58:22,440 INFO L793 eck$LassoCheckResult]: Loop: 2169#L1006-1 assume !false; 2170#L568 assume test_~splverifierCounter~0 < 4; 2214#L569 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 2123#L577 assume !(0 != test_~tmp~4); 2125#L577-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 2582#L587 assume !(0 != test_~tmp___0~0); 2255#L587-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 2256#L597 assume 0 != test_~tmp___2~0; 2275#L603-1 havoc __utac_acc__Specification5_spec__2_#t~ret73;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 2189#L885 __utac_acc__Specification5_spec__2_#t~ret73 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret73;havoc __utac_acc__Specification5_spec__2_#t~ret73; 2164#L995 assume !(0 != ~pumpRunning~0); 2165#L748 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2253#L832 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret52, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 2254#L806-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2193#L780-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, 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;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2194#L713-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2273#L718-3 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 2199#L934-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2200#L934-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2138#L940-3 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 2139#L784-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 2230#L755 havoc __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_#t~ret75, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 2231#L705 __utac_acc__Specification5_spec__3_#t~ret74 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 2161#L1006 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 2136#L885-1 __utac_acc__Specification5_spec__3_#t~ret75 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret75;havoc __utac_acc__Specification5_spec__3_#t~ret75; 2137#L1010 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2169#L1006-1 [2019-10-22 08:58:22,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:22,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-10-22 08:58:22,440 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:22,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084022721] [2019-10-22 08:58:22,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:22,835 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:22,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:22,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1716079387, now seen corresponding path program 1 times [2019-10-22 08:58:22,836 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:22,836 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128310149] [2019-10-22 08:58:22,836 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,836 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:22,856 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:22,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:22,861 INFO L82 PathProgramCache]: Analyzing trace with hash 612676267, now seen corresponding path program 1 times [2019-10-22 08:58:22,861 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:22,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294818293] [2019-10-22 08:58:22,862 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,862 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:23,203 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:23,394 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-10-22 08:58:48,723 WARN L191 SmtUtils]: Spent 25.26 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-10-22 08:59:00,571 WARN L191 SmtUtils]: Spent 11.84 s on a formula simplification that was a NOOP. DAG size: 451 [2019-10-22 08:59:00,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:59:00 BoogieIcfgContainer [2019-10-22 08:59:00,638 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:59:00,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:00,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:00,642 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:00,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:19" (3/4) ... [2019-10-22 08:59:00,646 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:59:00,709 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e735cbb3-55e3-4e34-b24b-bff50a2ced83/bin/uautomizer/witness.graphml [2019-10-22 08:59:00,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:00,711 INFO L168 Benchmark]: Toolchain (without parser) took 43216.23 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 395.8 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 244.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:00,711 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:00,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -194.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:00,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:00,712 INFO L168 Benchmark]: Boogie Preprocessor took 80.52 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. [2019-10-22 08:59:00,713 INFO L168 Benchmark]: RCFGBuilder took 1005.21 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: 89.5 MB). Peak memory consumption was 89.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:00,719 INFO L168 Benchmark]: BuchiAutomizer took 41289.51 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 233.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -56.6 MB). Peak memory consumption was 381.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:00,719 INFO L168 Benchmark]: Witness Printer took 71.00 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:00,721 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 659.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -194.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 106.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.52 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. * RCFGBuilder took 1005.21 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: 89.5 MB). Peak memory consumption was 89.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41289.51 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 233.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -56.6 MB). Peak memory consumption was 381.1 MB. Max. memory is 11.5 GB. * Witness Printer took 71.00 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 493 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 40.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 388 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 493 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 862 SDtfs, 2301 SDslu, 1907 SDs, 0 SdLazy, 200 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 567]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9712} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=9712, NULL=-14, NULL=0, NULL=0, NULL=-16, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ff9beee=0, tmp=0, NULL=0, NULL=-23, tmp___1=0, NULL=-2, NULL=-10, NULL=-4, cleanupTimeShifts=4, retValue_acc=0, NULL=-3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@793a7035=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3789dd52=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5894c9e1=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@580f198b=0, waterLevel=1, NULL=0, NULL=-18, NULL=-7, tmp___0=0, NULL=-11, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5594938=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43fd90be=0, NULL=0, \result=1, tmp=1, retValue_acc=0, tmp=1, retValue_acc=1, NULL=-6, head=0, NULL=0, NULL=-12, NULL=-1, tmp=0, NULL=0, NULL=-17, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59ea8e1d=0, NULL=-15, tmp___0=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fb1b9fe=0, NULL=-19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d97b3c6=0, switchedOnBeforeTS=0, NULL=-8, NULL=-5, tmp=0, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=-24, \result=0, tmp___0=0, NULL=-22, NULL=0, NULL=-20, NULL=0, retValue_acc=1, NULL=-13, NULL=-21, tmp___2=54, splverifierCounter=0, NULL=9711, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a72a870=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c502ff7=0, NULL=-9, NULL=0, NULL=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L630] int waterLevel = 1; [L631] int methaneLevelCritical = 0; [L736] int pumpRunning = 0; [L737] int systemActive = 1; [L979] int switchedOnBeforeTS ; [L489] int retValue_acc ; [L490] int tmp ; [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L984] switchedOnBeforeTS = 0 [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L881] int retValue_acc ; [L884] retValue_acc = pumpRunning [L885] return (retValue_acc); [L993] switchedOnBeforeTS = isPumpRunning() [L748] COND FALSE !(\read(pumpRunning)) [L755] COND TRUE \read(systemActive) [L829] int tmp ; [L832] COND FALSE !(\read(pumpRunning)) [L803] int tmp ; [L806] COND FALSE !(\read(pumpRunning)) [L777] int tmp ; [L780] COND TRUE ! pumpRunning [L926] int retValue_acc ; [L927] int tmp ; [L928] int tmp___0 ; [L710] int retValue_acc ; [L713] COND TRUE waterLevel < 2 [L714] retValue_acc = 1 [L715] return (retValue_acc); [L932] tmp = isHighWaterSensorDry() [L934] COND TRUE \read(tmp) [L935] tmp___0 = 0 [L939] retValue_acc = tmp___0 [L940] return (retValue_acc); [L782] tmp = isHighWaterLevel() [L784] COND FALSE !(\read(tmp)) [L999] int tmp ; [L1000] int tmp___0 ; [L701] int retValue_acc ; [L704] retValue_acc = waterLevel [L705] return (retValue_acc); [L1004] tmp = getWaterLevel() [L1006] COND TRUE tmp != 2 [L881] int retValue_acc ; [L884] retValue_acc = pumpRunning [L885] return (retValue_acc); [L1008] tmp___0 = isPumpRunning() [L1010] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...