./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.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/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/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 c6fd2ec47fce99d621bc8e726cd390df6cdcdca1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2019-11-15 19:57:09,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 19:57:09,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 19:57:09,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 19:57:09,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 19:57:09,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 19:57:09,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 19:57:09,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 19:57:09,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 19:57:09,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 19:57:09,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 19:57:09,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 19:57:09,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 19:57:09,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 19:57:09,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 19:57:09,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 19:57:09,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 19:57:09,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 19:57:09,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 19:57:09,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 19:57:09,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 19:57:09,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 19:57:09,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 19:57:09,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 19:57:09,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 19:57:09,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 19:57:09,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 19:57:09,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 19:57:09,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 19:57:09,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 19:57:09,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 19:57:09,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 19:57:09,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 19:57:09,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 19:57:09,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 19:57:09,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 19:57:09,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 19:57:09,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 19:57:09,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 19:57:09,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 19:57:09,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 19:57:09,302 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 19:57:09,317 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 19:57:09,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 19:57:09,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 19:57:09,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 19:57:09,319 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 19:57:09,319 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 19:57:09,319 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 19:57:09,319 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 19:57:09,320 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 19:57:09,320 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 19:57:09,320 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 19:57:09,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 19:57:09,320 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 19:57:09,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 19:57:09,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 19:57:09,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 19:57:09,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 19:57:09,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 19:57:09,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 19:57:09,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 19:57:09,322 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 19:57:09,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 19:57:09,322 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 19:57:09,323 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 19:57:09,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 19:57:09,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 19:57:09,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 19:57:09,323 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 19:57:09,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 19:57:09,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 19:57:09,324 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 19:57:09,325 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 19:57:09,325 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/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/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 -> c6fd2ec47fce99d621bc8e726cd390df6cdcdca1 [2019-11-15 19:57:09,350 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 19:57:09,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 19:57:09,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 19:57:09,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 19:57:09,364 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 19:57:09,364 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2019-11-15 19:57:09,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/data/37a2bd091/53879a3ff2654bb3827cfadcd51f56c2/FLAG6c87fb2ad [2019-11-15 19:57:09,862 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 19:57:09,862 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2019-11-15 19:57:09,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/data/37a2bd091/53879a3ff2654bb3827cfadcd51f56c2/FLAG6c87fb2ad [2019-11-15 19:57:09,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/data/37a2bd091/53879a3ff2654bb3827cfadcd51f56c2 [2019-11-15 19:57:09,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 19:57:09,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 19:57:09,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 19:57:09,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 19:57:09,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 19:57:09,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:57:09" (1/1) ... [2019-11-15 19:57:09,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c7e792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:09, skipping insertion in model container [2019-11-15 19:57:09,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:57:09" (1/1) ... [2019-11-15 19:57:09,923 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 19:57:09,974 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 19:57:10,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:57:10,331 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 19:57:10,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:57:10,452 INFO L192 MainTranslator]: Completed translation [2019-11-15 19:57:10,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10 WrapperNode [2019-11-15 19:57:10,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 19:57:10,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 19:57:10,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 19:57:10,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 19:57:10,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... [2019-11-15 19:57:10,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... [2019-11-15 19:57:10,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 19:57:10,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 19:57:10,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 19:57:10,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 19:57:10,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... [2019-11-15 19:57:10,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... [2019-11-15 19:57:10,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... [2019-11-15 19:57:10,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... [2019-11-15 19:57:10,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... [2019-11-15 19:57:10,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... [2019-11-15 19:57:10,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... [2019-11-15 19:57:10,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 19:57:10,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 19:57:10,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 19:57:10,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 19:57:10,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/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 [2019-11-15 19:57:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 19:57:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 19:57:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 19:57:10,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 19:57:11,445 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 19:57:11,446 INFO L284 CfgBuilder]: Removed 172 assume(true) statements. [2019-11-15 19:57:11,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:57:11 BoogieIcfgContainer [2019-11-15 19:57:11,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 19:57:11,448 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 19:57:11,448 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 19:57:11,452 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 19:57:11,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 19:57:11,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 07:57:09" (1/3) ... [2019-11-15 19:57:11,456 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@534d87ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 07:57:11, skipping insertion in model container [2019-11-15 19:57:11,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 19:57:11,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:57:10" (2/3) ... [2019-11-15 19:57:11,457 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@534d87ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 07:57:11, skipping insertion in model container [2019-11-15 19:57:11,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 19:57:11,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:57:11" (3/3) ... [2019-11-15 19:57:11,460 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2019-11-15 19:57:11,521 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 19:57:11,521 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 19:57:11,521 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 19:57:11,521 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 19:57:11,522 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 19:57:11,522 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 19:57:11,522 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 19:57:11,522 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 19:57:11,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states. [2019-11-15 19:57:11,587 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-11-15 19:57:11,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 19:57:11,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 19:57:11,596 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:11,597 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:11,597 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 19:57:11,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states. [2019-11-15 19:57:11,611 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-11-15 19:57:11,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 19:57:11,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 19:57:11,612 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:11,612 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:11,623 INFO L791 eck$LassoCheckResult]: Stem: 100#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.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(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 59#L884true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 89#L892true main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 85#L980true assume 0 != main_~tmp~9; 47#L956true ~switchedOnBeforeTS~0 := 0; 30#L816true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 71#L837-1true [2019-11-15 19:57:11,626 INFO L793 eck$LassoCheckResult]: Loop: 71#L837-1true assume !false; 55#L284true assume test_~splverifierCounter~0 < 4; 5#L285true test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 15#L293true assume !(0 != test_~tmp~4); 33#L293-1true test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 72#L303true assume !(0 != test_~tmp___0~2); 94#L303-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 120#L313true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 9#L321-2true havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 27#L183true __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 97#L826true assume !(0 != ~pumpRunning~0); 58#L72true assume !(0 != ~systemActive~0); 119#L79true havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 81#L416true __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 96#L837true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 71#L837-1true [2019-11-15 19:57:11,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:11,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-15 19:57:11,641 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:11,642 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955387625] [2019-11-15 19:57:11,642 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:11,642 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:11,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:12,486 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:57:12,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:12,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1013192653, now seen corresponding path program 1 times [2019-11-15 19:57:12,488 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:12,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113662651] [2019-11-15 19:57:12,489 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:12,489 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:12,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:57:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:57:12,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113662651] [2019-11-15 19:57:12,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:57:12,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 19:57:12,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917040784] [2019-11-15 19:57:12,566 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 19:57:12,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:57:12,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 19:57:12,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 19:57:12,579 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2019-11-15 19:57:12,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:57:12,629 INFO L93 Difference]: Finished difference Result 123 states and 176 transitions. [2019-11-15 19:57:12,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 19:57:12,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 176 transitions. [2019-11-15 19:57:12,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-15 19:57:12,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 116 states and 168 transitions. [2019-11-15 19:57:12,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2019-11-15 19:57:12,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2019-11-15 19:57:12,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 168 transitions. [2019-11-15 19:57:12,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 19:57:12,649 INFO L688 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2019-11-15 19:57:12,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 168 transitions. [2019-11-15 19:57:12,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-11-15 19:57:12,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-15 19:57:12,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 168 transitions. [2019-11-15 19:57:12,695 INFO L711 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2019-11-15 19:57:12,696 INFO L591 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2019-11-15 19:57:12,696 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 19:57:12,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 168 transitions. [2019-11-15 19:57:12,701 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-15 19:57:12,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 19:57:12,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 19:57:12,703 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:12,703 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:12,703 INFO L791 eck$LassoCheckResult]: Stem: 367#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.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(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 268#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 269#L884 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 335#L892 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 356#L980 assume 0 != main_~tmp~9; 321#L956 ~switchedOnBeforeTS~0 := 0; 301#L816 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 272#L837-1 [2019-11-15 19:57:12,704 INFO L793 eck$LassoCheckResult]: Loop: 272#L837-1 assume !false; 329#L284 assume test_~splverifierCounter~0 < 4; 259#L285 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 260#L293 assume !(0 != test_~tmp~4); 280#L293-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 305#L303 assume !(0 != test_~tmp___0~2); 344#L303-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 364#L313 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 256#L321-2 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 265#L183 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 297#L826 assume !(0 != ~pumpRunning~0); 333#L72 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 334#L130 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 342#L104-1 assume !(0 == ~pumpRunning~0); 339#L79 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 353#L416 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 354#L837 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 272#L837-1 [2019-11-15 19:57:12,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:12,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-15 19:57:12,705 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:12,705 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118823526] [2019-11-15 19:57:12,705 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:12,705 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:12,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:13,145 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:57:13,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:13,147 INFO L82 PathProgramCache]: Analyzing trace with hash 374839307, now seen corresponding path program 1 times [2019-11-15 19:57:13,147 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:13,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624524658] [2019-11-15 19:57:13,147 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:13,148 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:13,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:57:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:57:13,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624524658] [2019-11-15 19:57:13,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:57:13,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 19:57:13,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262081564] [2019-11-15 19:57:13,167 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 19:57:13,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:57:13,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 19:57:13,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 19:57:13,168 INFO L87 Difference]: Start difference. First operand 116 states and 168 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-11-15 19:57:13,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:57:13,313 INFO L93 Difference]: Finished difference Result 165 states and 227 transitions. [2019-11-15 19:57:13,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 19:57:13,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 227 transitions. [2019-11-15 19:57:13,316 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-11-15 19:57:13,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 165 states and 227 transitions. [2019-11-15 19:57:13,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 165 [2019-11-15 19:57:13,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 165 [2019-11-15 19:57:13,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 227 transitions. [2019-11-15 19:57:13,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 19:57:13,320 INFO L688 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2019-11-15 19:57:13,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 227 transitions. [2019-11-15 19:57:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2019-11-15 19:57:13,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-11-15 19:57:13,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 227 transitions. [2019-11-15 19:57:13,332 INFO L711 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2019-11-15 19:57:13,333 INFO L591 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2019-11-15 19:57:13,333 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 19:57:13,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 227 transitions. [2019-11-15 19:57:13,334 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-11-15 19:57:13,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 19:57:13,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 19:57:13,337 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:13,337 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] [2019-11-15 19:57:13,337 INFO L791 eck$LassoCheckResult]: Stem: 663#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.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(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 555#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 556#L884 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 625#L892 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 651#L980 assume 0 != main_~tmp~9; 610#L956 ~switchedOnBeforeTS~0 := 0; 588#L816 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 559#L837-1 [2019-11-15 19:57:13,338 INFO L793 eck$LassoCheckResult]: Loop: 559#L837-1 assume !false; 618#L284 assume test_~splverifierCounter~0 < 4; 546#L285 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 547#L293 assume !(0 != test_~tmp~4); 567#L293-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 592#L303 assume !(0 != test_~tmp___0~2); 636#L303-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 660#L313 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 545#L321-2 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 552#L183 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 584#L826 assume !(0 != ~pumpRunning~0); 623#L72 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 624#L130 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 634#L104-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 654#L424-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 655#L429-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 593#L232-3 assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; 594#L232-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 586#L238-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 587#L108-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 630#L79 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 646#L416 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 647#L837 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 559#L837-1 [2019-11-15 19:57:13,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:13,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-15 19:57:13,339 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:13,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516476398] [2019-11-15 19:57:13,339 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:13,339 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:13,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:13,603 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:57:13,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:13,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1760936871, now seen corresponding path program 1 times [2019-11-15 19:57:13,604 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:13,604 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378291226] [2019-11-15 19:57:13,604 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:13,604 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:13,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:57:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:57:13,640 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378291226] [2019-11-15 19:57:13,640 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:57:13,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 19:57:13,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632860339] [2019-11-15 19:57:13,640 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 19:57:13,641 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:57:13,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 19:57:13,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 19:57:13,641 INFO L87 Difference]: Start difference. First operand 165 states and 227 transitions. cyclomatic complexity: 64 Second operand 4 states. [2019-11-15 19:57:13,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:57:13,773 INFO L93 Difference]: Finished difference Result 317 states and 429 transitions. [2019-11-15 19:57:13,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 19:57:13,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 429 transitions. [2019-11-15 19:57:13,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2019-11-15 19:57:13,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 317 states and 429 transitions. [2019-11-15 19:57:13,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 317 [2019-11-15 19:57:13,782 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 317 [2019-11-15 19:57:13,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 317 states and 429 transitions. [2019-11-15 19:57:13,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 19:57:13,784 INFO L688 BuchiCegarLoop]: Abstraction has 317 states and 429 transitions. [2019-11-15 19:57:13,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states and 429 transitions. [2019-11-15 19:57:13,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 177. [2019-11-15 19:57:13,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-11-15 19:57:13,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 239 transitions. [2019-11-15 19:57:13,804 INFO L711 BuchiCegarLoop]: Abstraction has 177 states and 239 transitions. [2019-11-15 19:57:13,804 INFO L591 BuchiCegarLoop]: Abstraction has 177 states and 239 transitions. [2019-11-15 19:57:13,805 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 19:57:13,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 239 transitions. [2019-11-15 19:57:13,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-11-15 19:57:13,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 19:57:13,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 19:57:13,809 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:13,809 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] [2019-11-15 19:57:13,810 INFO L791 eck$LassoCheckResult]: Stem: 1166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.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(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1047#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 1048#L884 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1120#L892 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 1148#L980 assume 0 != main_~tmp~9; 1104#L956 ~switchedOnBeforeTS~0 := 0; 1082#L816 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1051#L837-1 [2019-11-15 19:57:13,810 INFO L793 eck$LassoCheckResult]: Loop: 1051#L837-1 assume !false; 1112#L284 assume test_~splverifierCounter~0 < 4; 1038#L285 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 1039#L293 assume !(0 != test_~tmp~4); 1060#L293-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 1086#L303 assume !(0 != test_~tmp___0~2); 1131#L303-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1160#L313 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1035#L321-2 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1044#L183 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 1078#L826 assume !(0 != ~pumpRunning~0); 1118#L72 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1119#L130 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1129#L104-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1152#L424-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1153#L429-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1087#L232-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1088#L232-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1080#L238-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1081#L108-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1125#L79 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1143#L416 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1144#L837 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 1051#L837-1 [2019-11-15 19:57:13,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:13,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-15 19:57:13,810 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:13,811 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817060640] [2019-11-15 19:57:13,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:13,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:13,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:14,072 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:57:14,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:14,073 INFO L82 PathProgramCache]: Analyzing trace with hash 759023063, now seen corresponding path program 1 times [2019-11-15 19:57:14,073 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:14,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551392949] [2019-11-15 19:57:14,073 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:14,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:14,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:57:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:57:14,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551392949] [2019-11-15 19:57:14,105 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:57:14,105 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 19:57:14,105 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912868138] [2019-11-15 19:57:14,106 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 19:57:14,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:57:14,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 19:57:14,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 19:57:14,107 INFO L87 Difference]: Start difference. First operand 177 states and 239 transitions. cyclomatic complexity: 64 Second operand 5 states. [2019-11-15 19:57:14,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:57:14,329 INFO L93 Difference]: Finished difference Result 457 states and 605 transitions. [2019-11-15 19:57:14,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 19:57:14,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 457 states and 605 transitions. [2019-11-15 19:57:14,334 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 295 [2019-11-15 19:57:14,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 457 states to 457 states and 605 transitions. [2019-11-15 19:57:14,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 457 [2019-11-15 19:57:14,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 457 [2019-11-15 19:57:14,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 457 states and 605 transitions. [2019-11-15 19:57:14,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 19:57:14,348 INFO L688 BuchiCegarLoop]: Abstraction has 457 states and 605 transitions. [2019-11-15 19:57:14,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states and 605 transitions. [2019-11-15 19:57:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 323. [2019-11-15 19:57:14,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-11-15 19:57:14,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 427 transitions. [2019-11-15 19:57:14,373 INFO L711 BuchiCegarLoop]: Abstraction has 323 states and 427 transitions. [2019-11-15 19:57:14,374 INFO L591 BuchiCegarLoop]: Abstraction has 323 states and 427 transitions. [2019-11-15 19:57:14,378 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 19:57:14,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 323 states and 427 transitions. [2019-11-15 19:57:14,380 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 228 [2019-11-15 19:57:14,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 19:57:14,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 19:57:14,382 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:57:14,383 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] [2019-11-15 19:57:14,383 INFO L791 eck$LassoCheckResult]: Stem: 1810#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.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(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1698#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 1699#L884 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1771#L892 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 1798#L980 assume 0 != main_~tmp~9; 1756#L956 ~switchedOnBeforeTS~0 := 0; 1734#L816 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1702#L837-1 [2019-11-15 19:57:14,384 INFO L793 eck$LassoCheckResult]: Loop: 1702#L837-1 assume !false; 1765#L284 assume test_~splverifierCounter~0 < 4; 1688#L285 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 1689#L293 assume !(0 != test_~tmp~4); 1711#L293-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 1738#L303 assume !(0 != test_~tmp___0~2); 1782#L303-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1806#L313 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1685#L321-2 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1729#L183 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 1730#L826 assume !(0 != ~pumpRunning~0); 1809#L72 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1779#L130 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1780#L104-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1801#L424-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1802#L429-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1739#L232-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1740#L232-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1732#L238-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1733#L108-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1776#L79 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1792#L416 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1793#L837 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1725#L183-1 __utac_acc__Specification5_spec__3_#t~ret72 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1700#L841 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1702#L837-1 [2019-11-15 19:57:14,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:14,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2019-11-15 19:57:14,384 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:14,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096688741] [2019-11-15 19:57:14,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:14,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:14,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:14,642 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:57:14,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:14,642 INFO L82 PathProgramCache]: Analyzing trace with hash -723288910, now seen corresponding path program 1 times [2019-11-15 19:57:14,643 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:14,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268132883] [2019-11-15 19:57:14,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:14,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:14,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:14,656 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:57:14,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:57:14,657 INFO L82 PathProgramCache]: Analyzing trace with hash -786715092, now seen corresponding path program 1 times [2019-11-15 19:57:14,657 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:57:14,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798224202] [2019-11-15 19:57:14,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:14,658 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:57:14,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:57:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:57:14,933 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:57:15,126 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-15 19:57:35,287 WARN L191 SmtUtils]: Spent 20.07 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-11-15 19:57:47,913 WARN L191 SmtUtils]: Spent 12.62 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-15 19:57:47,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 07:57:47 BoogieIcfgContainer [2019-11-15 19:57:47,982 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 19:57:47,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 19:57:47,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 19:57:47,983 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 19:57:47,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:57:11" (3/4) ... [2019-11-15 19:57:47,986 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 19:57:48,044 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eb7d3d05-0e6f-4747-be3d-b8e06363fb00/bin/uautomizer/witness.graphml [2019-11-15 19:57:48,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 19:57:48,046 INFO L168 Benchmark]: Toolchain (without parser) took 38138.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 940.7 MB in the beginning and 881.4 MB in the end (delta: 59.3 MB). Peak memory consumption was 267.5 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:48,046 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:57:48,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:48,047 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.99 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:48,047 INFO L168 Benchmark]: Boogie Preprocessor took 50.70 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. [2019-11-15 19:57:48,048 INFO L168 Benchmark]: RCFGBuilder took 874.00 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: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:48,048 INFO L168 Benchmark]: BuchiAutomizer took 36534.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 891.5 MB in the end (delta: 145.4 MB). Peak memory consumption was 283.7 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:48,049 INFO L168 Benchmark]: Witness Printer took 61.96 ms. Allocated memory is still 1.2 GB. Free memory was 891.5 MB in the beginning and 881.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-11-15 19:57:48,051 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 544.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.99 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.70 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. * RCFGBuilder took 874.00 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: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36534.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 891.5 MB in the end (delta: 145.4 MB). Peak memory consumption was 283.7 MB. Max. memory is 11.5 GB. * Witness Printer took 61.96 ms. Allocated memory is still 1.2 GB. Free memory was 891.5 MB in the beginning and 881.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 323 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 35.5s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 274 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 323 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 771 SDtfs, 1069 SDslu, 872 SDs, 0 SdLazy, 195 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI4 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: 283]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11650} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=11649, NULL=11645, NULL=0, NULL=11650, NULL=11639, retValue_acc=1, NULL=-6, NULL=11646, methaneLevelCritical=0, NULL=11644, tmp=1, tmp___0=0, NULL=0, tmp=0, retValue_acc=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@417999f8=0, NULL=-5, cleanupTimeShifts=4, NULL=11636, switchedOnBeforeTS=0, NULL=-8, \result=0, NULL=11642, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ac54289=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=11641, NULL=0, NULL=-7, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3766, \result=1, retValue_acc=0, NULL=-3, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49f592c=0, NULL=11643, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a1a87b=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43804a0e=0, tmp___0=0, NULL=11635, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6df5444b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41deb093=55, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c947618=0, \result=1, NULL=11647, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59654d00=0, tmp=1, tmp___2=55, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cd8a5fb=0, NULL=11634, NULL=11640, retValue_acc=1, splverifierCounter=0, NULL=11638, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50ffcb9a=0, head=0, retValue_acc=0, NULL=0, NULL=0, tmp=1, NULL=11637, NULL=-2, NULL=-1, NULL=-4, NULL=11648} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L341] int waterLevel = 1; [L342] int methaneLevelCritical = 0; [L613] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L810] int switchedOnBeforeTS ; [L897] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L888] int retValue_acc ; [L891] retValue_acc = 1 [L892] return (retValue_acc); [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L815] switchedOnBeforeTS = 0 [L274] int splverifierCounter ; [L275] int tmp ; [L276] int tmp___0 ; [L277] int tmp___1 ; [L278] int tmp___2 ; [L281] splverifierCounter = 0 Loop: [L283] COND TRUE 1 [L285] COND TRUE splverifierCounter < 4 [L291] tmp = __VERIFIER_nondet_int() [L293] COND FALSE !(\read(tmp)) [L301] tmp___0 = __VERIFIER_nondet_int() [L303] COND FALSE !(\read(tmp___0)) [L311] tmp___2 = __VERIFIER_nondet_int() [L313] COND TRUE \read(tmp___2) [L265] systemActive = 1 [L179] int retValue_acc ; [L182] retValue_acc = pumpRunning [L183] return (retValue_acc); [L824] switchedOnBeforeTS = isPumpRunning() [L72] COND FALSE !(\read(pumpRunning)) [L79] COND TRUE \read(systemActive) [L127] int tmp ; [L130] COND FALSE !(\read(pumpRunning)) [L101] int tmp ; [L104] COND TRUE ! pumpRunning [L224] int retValue_acc ; [L225] int tmp ; [L226] int tmp___0 ; [L421] int retValue_acc ; [L424] COND TRUE waterLevel < 2 [L425] retValue_acc = 1 [L426] return (retValue_acc); [L230] tmp = isHighWaterSensorDry() [L232] COND TRUE \read(tmp) [L233] tmp___0 = 0 [L237] retValue_acc = tmp___0 [L238] return (retValue_acc); [L106] tmp = isHighWaterLevel() [L108] COND FALSE !(\read(tmp)) [L830] int tmp ; [L831] int tmp___0 ; [L412] int retValue_acc ; [L415] retValue_acc = waterLevel [L416] return (retValue_acc); [L835] tmp = getWaterLevel() [L837] COND TRUE tmp != 2 [L179] int retValue_acc ; [L182] retValue_acc = pumpRunning [L183] return (retValue_acc); [L839] tmp___0 = isPumpRunning() [L841] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...