./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.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_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/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 2d2a2b756a74af71e6c6aa0a16e78dafb1256d78 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:58:55,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:55,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:55,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:55,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:55,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:55,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:55,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:55,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:55,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:55,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:55,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:55,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:55,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:55,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:55,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:55,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:55,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:55,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:55,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:55,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:55,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:55,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:55,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:55,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:55,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:55,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:55,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:55,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:55,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:55,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:55,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:55,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:55,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:55,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:55,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:55,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:55,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:55,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:55,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:55,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:55,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:58:55,323 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:55,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:55,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:55,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:55,325 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:55,325 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:58:55,325 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:58:55,325 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:58:55,325 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:58:55,325 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:58:55,326 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:58:55,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:55,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:55,335 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:55,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:55,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:55,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:55,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:58:55,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:58:55,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:58:55,336 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:55,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:55,336 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:58:55,336 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:55,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:58:55,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:55,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:55,337 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:58:55,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:55,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:55,338 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:58:55,339 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:58:55,341 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_36532829-7fa7-4082-85a0-4125133854ef/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 -> 2d2a2b756a74af71e6c6aa0a16e78dafb1256d78 [2019-10-22 08:58:55,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:55,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:55,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:55,390 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:55,390 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:55,391 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2019-10-22 08:58:55,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/data/713c82a21/21aca9feb4e74529ae67bed1a404bf6c/FLAGc7431484f [2019-10-22 08:58:55,864 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:55,866 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2019-10-22 08:58:55,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/data/713c82a21/21aca9feb4e74529ae67bed1a404bf6c/FLAGc7431484f [2019-10-22 08:58:55,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/data/713c82a21/21aca9feb4e74529ae67bed1a404bf6c [2019-10-22 08:58:55,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:55,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:55,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:55,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:55,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:55,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:55" (1/1) ... [2019-10-22 08:58:55,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@616594e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:55, skipping insertion in model container [2019-10-22 08:58:55,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:55" (1/1) ... [2019-10-22 08:58:55,901 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:55,937 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:56,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:56,260 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:56,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:56,403 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:56,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56 WrapperNode [2019-10-22 08:58:56,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:56,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:56,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:56,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:56,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... [2019-10-22 08:58:56,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... [2019-10-22 08:58:56,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:56,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:56,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:56,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:56,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... [2019-10-22 08:58:56,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... [2019-10-22 08:58:56,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... [2019-10-22 08:58:56,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... [2019-10-22 08:58:56,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... [2019-10-22 08:58:56,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... [2019-10-22 08:58:56,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... [2019-10-22 08:58:56,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:56,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:56,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:56,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:56,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/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 08:58:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:58:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:56,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:57,570 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:57,571 INFO L284 CfgBuilder]: Removed 278 assume(true) statements. [2019-10-22 08:58:57,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:57 BoogieIcfgContainer [2019-10-22 08:58:57,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:57,573 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:58:57,573 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:58:57,577 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:58:57,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:57,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:58:55" (1/3) ... [2019-10-22 08:58:57,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d139c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:57, skipping insertion in model container [2019-10-22 08:58:57,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:57,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:56" (2/3) ... [2019-10-22 08:58:57,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d139c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:57, skipping insertion in model container [2019-10-22 08:58:57,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:57,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:57" (3/3) ... [2019-10-22 08:58:57,581 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product54.cil.c [2019-10-22 08:58:57,627 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:58:57,627 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:58:57,628 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:58:57,628 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:57,629 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:57,629 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:58:57,629 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:57,629 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:58:57,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states. [2019-10-22 08:58:57,684 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2019-10-22 08:58:57,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:57,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:57,695 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:57,696 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:57,696 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:58:57,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states. [2019-10-22 08:58:57,704 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2019-10-22 08:58:57,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:57,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:57,705 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:57,705 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:57,714 INFO L791 eck$LassoCheckResult]: Stem: 133#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 22#L-1true havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~4, main_~tmp~7;havoc main_~retValue_acc~4;havoc main_~tmp~7; 117#L980true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 139#L988true main_#t~ret28 := valid_product_#res;main_~tmp~7 := main_#t~ret28;havoc main_#t~ret28; 99#L466true assume 0 != main_~tmp~7; 149#L440true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 157#L363-1true [2019-10-22 08:58:57,715 INFO L793 eck$LassoCheckResult]: Loop: 157#L363-1true assume !false; 103#L56true assume test_~splverifierCounter~0 < 4; 187#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 33#L65true assume !(0 != test_~tmp~0); 27#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 111#L75true assume !(0 != test_~tmp___0~0); 110#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 160#L85true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 150#L93-2true assume !(0 != ~pumpRunning~0); 164#L129true assume !(0 != ~systemActive~0); 62#L136true havoc __utac_acc__Specification4_spec__1_#t~ret26, __utac_acc__Specification4_spec__1_#t~ret27, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 4#L921true __utac_acc__Specification4_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret26;havoc __utac_acc__Specification4_spec__1_#t~ret26; 155#L363true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 157#L363-1true [2019-10-22 08:58:57,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:57,725 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:58:57,733 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:57,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181905265] [2019-10-22 08:58:57,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:57,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:57,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:58,443 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:58,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:58,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1675526973, now seen corresponding path program 1 times [2019-10-22 08:58:58,445 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:58,445 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075966182] [2019-10-22 08:58:58,445 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:58,446 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:58,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:58,505 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 08:58:58,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075966182] [2019-10-22 08:58:58,507 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:58,507 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:58,508 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789329101] [2019-10-22 08:58:58,513 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:58:58,513 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:58,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:58,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:58,531 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2019-10-22 08:58:58,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:58,597 INFO L93 Difference]: Finished difference Result 186 states and 275 transitions. [2019-10-22 08:58:58,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:58,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 275 transitions. [2019-10-22 08:58:58,612 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2019-10-22 08:58:58,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 179 states and 267 transitions. [2019-10-22 08:58:58,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2019-10-22 08:58:58,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2019-10-22 08:58:58,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 267 transitions. [2019-10-22 08:58:58,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:58,633 INFO L688 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2019-10-22 08:58:58,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 267 transitions. [2019-10-22 08:58:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2019-10-22 08:58:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-10-22 08:58:58,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 267 transitions. [2019-10-22 08:58:58,668 INFO L711 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2019-10-22 08:58:58,668 INFO L591 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2019-10-22 08:58:58,668 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:58:58,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 267 transitions. [2019-10-22 08:58:58,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2019-10-22 08:58:58,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:58,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:58,671 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:58,671 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:58,672 INFO L791 eck$LassoCheckResult]: Stem: 538#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 422#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~4, main_~tmp~7;havoc main_~retValue_acc~4;havoc main_~tmp~7; 423#L980 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 527#L988 main_#t~ret28 := valid_product_#res;main_~tmp~7 := main_#t~ret28;havoc main_#t~ret28; 512#L466 assume 0 != main_~tmp~7; 513#L440 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 518#L363-1 [2019-10-22 08:58:58,672 INFO L793 eck$LassoCheckResult]: Loop: 518#L363-1 assume !false; 516#L56 assume test_~splverifierCounter~0 < 4; 517#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 443#L65 assume !(0 != test_~tmp~0); 432#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 433#L75 assume !(0 != test_~tmp___0~0); 520#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 521#L85 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 546#L93-2 assume !(0 != ~pumpRunning~0); 425#L129 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 507#L213 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 509#L187-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 414#L161-3 assume !(0 == ~pumpRunning~0); 415#L136 havoc __utac_acc__Specification4_spec__1_#t~ret26, __utac_acc__Specification4_spec__1_#t~ret27, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 381#L921 __utac_acc__Specification4_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret26;havoc __utac_acc__Specification4_spec__1_#t~ret26; 382#L363 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 518#L363-1 [2019-10-22 08:58:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:58,673 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:58:58,673 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:58,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312002916] [2019-10-22 08:58:58,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:58,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:58,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:58,990 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:58,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:58,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1905346314, now seen corresponding path program 1 times [2019-10-22 08:58:58,991 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:58,991 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13127100] [2019-10-22 08:58:58,991 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:58,991 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:58,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:59,002 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 08:58:59,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13127100] [2019-10-22 08:58:59,003 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:59,003 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:59,003 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721992423] [2019-10-22 08:58:59,004 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:58:59,004 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:59,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:59,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:59,005 INFO L87 Difference]: Start difference. First operand 179 states and 267 transitions. cyclomatic complexity: 90 Second operand 3 states. [2019-10-22 08:58:59,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:59,176 INFO L93 Difference]: Finished difference Result 184 states and 255 transitions. [2019-10-22 08:58:59,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:59,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 255 transitions. [2019-10-22 08:58:59,181 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-10-22 08:58:59,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 255 transitions. [2019-10-22 08:58:59,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2019-10-22 08:58:59,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2019-10-22 08:58:59,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 255 transitions. [2019-10-22 08:58:59,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:59,191 INFO L688 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2019-10-22 08:58:59,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 255 transitions. [2019-10-22 08:58:59,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2019-10-22 08:58:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-10-22 08:58:59,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2019-10-22 08:58:59,202 INFO L711 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2019-10-22 08:58:59,202 INFO L591 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2019-10-22 08:58:59,202 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:58:59,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 255 transitions. [2019-10-22 08:58:59,204 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-10-22 08:58:59,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:59,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:59,205 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:59,206 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] [2019-10-22 08:58:59,207 INFO L791 eck$LassoCheckResult]: Stem: 878#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 782#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~4, main_~tmp~7;havoc main_~retValue_acc~4;havoc main_~tmp~7; 783#L980 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 868#L988 main_#t~ret28 := valid_product_#res;main_~tmp~7 := main_#t~ret28;havoc main_#t~ret28; 854#L466 assume 0 != main_~tmp~7; 855#L440 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 860#L363-1 [2019-10-22 08:58:59,207 INFO L793 eck$LassoCheckResult]: Loop: 860#L363-1 assume !false; 858#L56 assume test_~splverifierCounter~0 < 4; 859#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 795#L65 assume !(0 != test_~tmp~0); 791#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 792#L75 assume !(0 != test_~tmp___0~0); 862#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 863#L85 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 885#L93-2 assume !(0 != ~pumpRunning~0); 886#L129 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 850#L213 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 851#L187-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 779#L161-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 780#L929-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 790#L934-3 isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; 797#L315-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 798#L315-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 805#L321-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 883#L165-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 823#L136 havoc __utac_acc__Specification4_spec__1_#t~ret26, __utac_acc__Specification4_spec__1_#t~ret27, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 752#L921 __utac_acc__Specification4_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret26;havoc __utac_acc__Specification4_spec__1_#t~ret26; 753#L363 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 860#L363-1 [2019-10-22 08:58:59,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:59,208 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:58:59,208 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:59,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996480979] [2019-10-22 08:58:59,209 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,209 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:59,586 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:59,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:59,587 INFO L82 PathProgramCache]: Analyzing trace with hash -659266398, now seen corresponding path program 1 times [2019-10-22 08:58:59,587 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:59,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994583810] [2019-10-22 08:58:59,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:59,600 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:59,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:59,605 INFO L82 PathProgramCache]: Analyzing trace with hash 594038728, now seen corresponding path program 1 times [2019-10-22 08:58:59,605 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:59,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713459272] [2019-10-22 08:58:59,605 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,605 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:59,821 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:20,180 WARN L191 SmtUtils]: Spent 20.21 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:59:30,339 WARN L191 SmtUtils]: Spent 10.16 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:59:30,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:59:30 BoogieIcfgContainer [2019-10-22 08:59:30,403 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:59:30,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:30,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:30,404 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:30,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:57" (3/4) ... [2019-10-22 08:59:30,407 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:59:30,462 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_36532829-7fa7-4082-85a0-4125133854ef/bin/uautomizer/witness.graphml [2019-10-22 08:59:30,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:30,463 INFO L168 Benchmark]: Toolchain (without parser) took 34576.06 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 347.6 MB). Free memory was 945.9 MB in the beginning and 895.2 MB in the end (delta: 50.6 MB). Peak memory consumption was 398.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:30,464 INFO L168 Benchmark]: CDTParser took 0.16 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 08:59:30,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:30,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.69 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 08:59:30,465 INFO L168 Benchmark]: Boogie Preprocessor took 50.15 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 08:59:30,465 INFO L168 Benchmark]: RCFGBuilder took 1019.61 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: 76.4 MB). Peak memory consumption was 76.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:30,466 INFO L168 Benchmark]: BuchiAutomizer took 32830.33 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.0 MB). Free memory was 1.1 GB in the beginning and 898.4 MB in the end (delta: 151.6 MB). Peak memory consumption was 387.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:30,466 INFO L168 Benchmark]: Witness Printer took 58.95 ms. Allocated memory is still 1.4 GB. Free memory was 898.4 MB in the beginning and 895.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:30,468 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 515.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.69 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 50.15 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 1019.61 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: 76.4 MB). Peak memory consumption was 76.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 32830.33 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.0 MB). Free memory was 1.1 GB in the beginning and 898.4 MB in the end (delta: 151.6 MB). Peak memory consumption was 387.1 MB. Max. memory is 11.5 GB. * Witness Printer took 58.95 ms. Allocated memory is still 1.4 GB. Free memory was 898.4 MB in the beginning and 895.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 184 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 32.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 184 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 475 SDtfs, 404 SDslu, 75 SDs, 0 SdLazy, 45 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=-14, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60bc0d8a=0, retValue_acc=0, NULL=-26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4efac13e=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@337d68ad=52, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dbc425d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ffe2a2=0, NULL=-20, retValue_acc=1, NULL=-12, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51acb8b3=0, tmp=0, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=-25, cleanupTimeShifts=4, tmp=0, tmp=0, NULL=-6, tmp___0=0, NULL=-13, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-10, \result=1, NULL=-16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@509c5a5c=0, NULL=0, \result=0, NULL=-21, tmp___0=0, NULL=0, NULL=0, NULL=-24, NULL=0, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a9345f4=0, head=0, pumpRunning=0, NULL=-5, NULL=-15, \result=0, NULL=-1, NULL=-18, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, \result=1, NULL=-9, NULL=-8, NULL=-2, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dfbf395=0, tmp=1, NULL=0, retValue_acc=1, tmp=1, tmp___2=52, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=-11, NULL=-19, NULL=-4, tmp=0, head=0, NULL=-22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3443890d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b0806b8=0, NULL=0, NULL=0, NULL=-17, NULL=0, NULL=-3, NULL=-7} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L381] int cleanupTimeShifts = 4; [L649] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L846] int waterLevel = 1; [L847] int methaneLevelCritical = 0; [L457] int retValue_acc ; [L458] int tmp ; [L984] int retValue_acc ; [L987] retValue_acc = 1 [L988] return (retValue_acc); [L464] tmp = valid_product() [L466] COND TRUE \read(tmp) [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L348] systemActive = 1 [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L210] int tmp ; [L213] COND FALSE !(\read(pumpRunning)) [L184] int tmp ; [L187] COND FALSE !(\read(pumpRunning)) [L158] int tmp ; [L161] COND TRUE ! pumpRunning [L307] int retValue_acc ; [L308] int tmp ; [L309] int tmp___0 ; [L926] int retValue_acc ; [L929] COND TRUE waterLevel < 2 [L930] retValue_acc = 1 [L931] return (retValue_acc); [L313] tmp = isHighWaterSensorDry() [L315] COND TRUE \read(tmp) [L316] tmp___0 = 0 [L320] retValue_acc = tmp___0 [L321] return (retValue_acc); [L163] tmp = isHighWaterLevel() [L165] COND FALSE !(\read(tmp)) [L356] int tmp ; [L357] int tmp___0 ; [L917] int retValue_acc ; [L920] retValue_acc = waterLevel [L921] return (retValue_acc); [L361] tmp = getWaterLevel() [L363] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...