./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/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 6b50f176f9cc083683ce70010cc4357ff865e696 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-678e011 [2019-11-20 10:42:53,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:42:53,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:42:53,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:42:53,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:42:53,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:42:53,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:42:53,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:42:53,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:42:53,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:42:53,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:42:53,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:42:53,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:42:53,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:42:53,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:42:53,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:42:53,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:42:53,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:42:53,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:42:53,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:42:53,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:42:53,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:42:53,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:42:53,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:42:53,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:42:53,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:42:53,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:42:53,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:42:53,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:42:53,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:42:53,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:42:53,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:42:53,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:42:53,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:42:53,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:42:53,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:42:53,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:42:53,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:42:53,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:42:53,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:42:53,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:42:53,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 10:42:53,537 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:42:53,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:42:53,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:42:53,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:42:53,540 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:42:53,540 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 10:42:53,540 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 10:42:53,540 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 10:42:53,541 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 10:42:53,541 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 10:42:53,542 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 10:42:53,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:42:53,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:42:53,543 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:42:53,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:42:53,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:42:53,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:42:53,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 10:42:53,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 10:42:53,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 10:42:53,544 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:42:53,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:42:53,545 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 10:42:53,545 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:42:53,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 10:42:53,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:42:53,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:42:53,546 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 10:42:53,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:42:53,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:42:53,547 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 10:42:53,548 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 10:42:53,548 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_4ad481d1-f49e-4a21-be85-da3d5655bc19/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 -> 6b50f176f9cc083683ce70010cc4357ff865e696 [2019-11-20 10:42:53,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:42:53,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:42:53,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:42:53,766 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:42:53,767 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:42:53,768 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-11-20 10:42:53,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/data/111835184/3f7fba3282bf461d82013211c978829c/FLAGba17c8cde [2019-11-20 10:42:54,344 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:42:54,349 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-11-20 10:42:54,367 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/data/111835184/3f7fba3282bf461d82013211c978829c/FLAGba17c8cde [2019-11-20 10:42:54,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/data/111835184/3f7fba3282bf461d82013211c978829c [2019-11-20 10:42:54,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:42:54,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:42:54,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:42:54,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:42:54,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:42:54,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:54" (1/1) ... [2019-11-20 10:42:54,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7544295f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:54, skipping insertion in model container [2019-11-20 10:42:54,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:54" (1/1) ... [2019-11-20 10:42:54,641 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:42:54,698 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:42:55,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:42:55,170 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:42:55,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:42:55,284 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:42:55,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55 WrapperNode [2019-11-20 10:42:55,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:42:55,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:42:55,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:42:55,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:42:55,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... [2019-11-20 10:42:55,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... [2019-11-20 10:42:55,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:42:55,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:42:55,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:42:55,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:42:55,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... [2019-11-20 10:42:55,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... [2019-11-20 10:42:55,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... [2019-11-20 10:42:55,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... [2019-11-20 10:42:55,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... [2019-11-20 10:42:55,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... [2019-11-20 10:42:55,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... [2019-11-20 10:42:55,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:42:55,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:42:55,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:42:55,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:42:55,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/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 [2019-11-20 10:42:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:42:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 10:42:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:42:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:42:56,350 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:42:56,350 INFO L285 CfgBuilder]: Removed 124 assume(true) statements. [2019-11-20 10:42:56,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:42:56 BoogieIcfgContainer [2019-11-20 10:42:56,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:42:56,352 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 10:42:56,352 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 10:42:56,355 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 10:42:56,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:42:56,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:42:54" (1/3) ... [2019-11-20 10:42:56,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55cb4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:42:56, skipping insertion in model container [2019-11-20 10:42:56,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:42:56,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:55" (2/3) ... [2019-11-20 10:42:56,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55cb4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:42:56, skipping insertion in model container [2019-11-20 10:42:56,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:42:56,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:42:56" (3/3) ... [2019-11-20 10:42:56,359 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2019-11-20 10:42:56,399 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 10:42:56,399 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 10:42:56,399 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 10:42:56,399 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:42:56,399 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:42:56,399 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 10:42:56,400 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:42:56,400 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 10:42:56,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states. [2019-11-20 10:42:56,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2019-11-20 10:42:56,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:42:56,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:42:56,450 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:42:56,450 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:42:56,450 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 10:42:56,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states. [2019-11-20 10:42:56,457 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2019-11-20 10:42:56,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:42:56,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:42:56,458 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:42:56,458 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:42:56,463 INFO L794 eck$LassoCheckResult]: Stem: 47#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 15#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 35#L578true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 66#L586true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 89#L130true assume 0 != main_~tmp~0; 37#L103true havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 16#L171-1true [2019-11-20 10:42:56,463 INFO L796 eck$LassoCheckResult]: Loop: 16#L171-1true assume !false; 5#L793true assume test_~splverifierCounter~0 < 4; 55#L794true test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 60#L802true assume !(0 != test_~tmp~8); 62#L802-1true test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 38#L812true assume !(0 != test_~tmp___0~2); 42#L812-1true test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 14#L822true assume 0 != test_~tmp___2~0; 70#L828-1true assume !(0 != ~pumpRunning~0); 52#L604true assume !(0 != ~systemActive~0); 34#L611true havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 26#L892-1true __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 32#L165true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 16#L171-1true [2019-11-20 10:42:56,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:56,470 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-20 10:42:56,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:56,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357416517] [2019-11-20 10:42:56,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:56,817 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:42:56,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:56,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1672602498, now seen corresponding path program 1 times [2019-11-20 10:42:56,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:56,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230058669] [2019-11-20 10:42:56,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:56,835 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:42:56,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:56,837 INFO L82 PathProgramCache]: Analyzing trace with hash 41676440, now seen corresponding path program 1 times [2019-11-20 10:42:56,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:56,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596854286] [2019-11-20 10:42:56,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:42:57,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:42:57,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596854286] [2019-11-20 10:42:57,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:42:57,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 10:42:57,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144913413] [2019-11-20 10:42:57,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:42:57,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 10:42:57,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:42:57,125 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 6 states. [2019-11-20 10:42:57,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:42:57,373 INFO L93 Difference]: Finished difference Result 234 states and 327 transitions. [2019-11-20 10:42:57,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:42:57,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 234 states and 327 transitions. [2019-11-20 10:42:57,393 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 149 [2019-11-20 10:42:57,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 234 states to 213 states and 306 transitions. [2019-11-20 10:42:57,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 213 [2019-11-20 10:42:57,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 213 [2019-11-20 10:42:57,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 213 states and 306 transitions. [2019-11-20 10:42:57,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:42:57,414 INFO L688 BuchiCegarLoop]: Abstraction has 213 states and 306 transitions. [2019-11-20 10:42:57,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states and 306 transitions. [2019-11-20 10:42:57,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 132. [2019-11-20 10:42:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-20 10:42:57,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 189 transitions. [2019-11-20 10:42:57,471 INFO L711 BuchiCegarLoop]: Abstraction has 132 states and 189 transitions. [2019-11-20 10:42:57,471 INFO L591 BuchiCegarLoop]: Abstraction has 132 states and 189 transitions. [2019-11-20 10:42:57,471 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 10:42:57,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states and 189 transitions. [2019-11-20 10:42:57,474 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2019-11-20 10:42:57,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:42:57,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:42:57,475 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:42:57,476 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:42:57,476 INFO L794 eck$LassoCheckResult]: Stem: 404#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 369#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 370#L578 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 394#L586 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 417#L130 assume 0 != main_~tmp~0; 395#L103 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 347#L171-1 [2019-11-20 10:42:57,476 INFO L796 eck$LassoCheckResult]: Loop: 347#L171-1 assume !false; 348#L793 assume test_~splverifierCounter~0 < 4; 349#L794 test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 412#L802 assume !(0 != test_~tmp~8); 393#L802-1 test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 396#L812 assume !(0 != test_~tmp___0~2); 397#L812-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 366#L822 assume 0 != test_~tmp___2~0; 367#L828-1 assume !(0 != ~pumpRunning~0); 363#L604 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 377#L636 assume !(0 == ~pumpRunning~0); 378#L611 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 385#L892-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 386#L165 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 347#L171-1 [2019-11-20 10:42:57,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:57,477 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-20 10:42:57,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:57,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952492813] [2019-11-20 10:42:57,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:57,593 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:42:57,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:57,593 INFO L82 PathProgramCache]: Analyzing trace with hash -352838738, now seen corresponding path program 1 times [2019-11-20 10:42:57,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:57,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160313395] [2019-11-20 10:42:57,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:42:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:42:57,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160313395] [2019-11-20 10:42:57,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:42:57,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 10:42:57,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629312166] [2019-11-20 10:42:57,609 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 10:42:57,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:42:57,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:42:57,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:42:57,610 INFO L87 Difference]: Start difference. First operand 132 states and 189 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-11-20 10:42:57,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:42:57,706 INFO L93 Difference]: Finished difference Result 177 states and 241 transitions. [2019-11-20 10:42:57,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:42:57,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 241 transitions. [2019-11-20 10:42:57,711 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2019-11-20 10:42:57,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 241 transitions. [2019-11-20 10:42:57,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2019-11-20 10:42:57,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2019-11-20 10:42:57,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 241 transitions. [2019-11-20 10:42:57,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:42:57,716 INFO L688 BuchiCegarLoop]: Abstraction has 177 states and 241 transitions. [2019-11-20 10:42:57,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 241 transitions. [2019-11-20 10:42:57,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2019-11-20 10:42:57,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-11-20 10:42:57,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 241 transitions. [2019-11-20 10:42:57,727 INFO L711 BuchiCegarLoop]: Abstraction has 177 states and 241 transitions. [2019-11-20 10:42:57,728 INFO L591 BuchiCegarLoop]: Abstraction has 177 states and 241 transitions. [2019-11-20 10:42:57,728 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 10:42:57,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 241 transitions. [2019-11-20 10:42:57,730 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2019-11-20 10:42:57,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:42:57,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:42:57,731 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:42:57,731 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] [2019-11-20 10:42:57,732 INFO L794 eck$LassoCheckResult]: Stem: 725#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 684#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 685#L578 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 711#L586 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 741#L130 assume 0 != main_~tmp~0; 715#L103 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 716#L171-1 [2019-11-20 10:42:57,732 INFO L796 eck$LassoCheckResult]: Loop: 716#L171-1 assume !false; 811#L793 assume test_~splverifierCounter~0 < 4; 733#L794 test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 734#L802 assume !(0 != test_~tmp~8); 709#L802-1 test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 712#L812 assume !(0 != test_~tmp___0~2); 713#L812-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 681#L822 assume 0 != test_~tmp___2~0; 682#L828-1 assume !(0 != ~pumpRunning~0); 746#L604 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 695#L636 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 659#L932 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 660#L937 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 724#L756 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 756#L756-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 748#L762 processEnvironment_#t~ret40 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 721#L640 assume !(0 != processEnvironment_~tmp~5); 707#L611 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 698#L892-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 699#L165 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 716#L171-1 [2019-11-20 10:42:57,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:57,732 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-20 10:42:57,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:57,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596631643] [2019-11-20 10:42:57,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:57,878 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:42:57,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:57,879 INFO L82 PathProgramCache]: Analyzing trace with hash -539212902, now seen corresponding path program 1 times [2019-11-20 10:42:57,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:57,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631110583] [2019-11-20 10:42:57,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:57,901 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:42:57,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:57,903 INFO L82 PathProgramCache]: Analyzing trace with hash -524500928, now seen corresponding path program 1 times [2019-11-20 10:42:57,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:57,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685059655] [2019-11-20 10:42:57,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:42:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:42:57,997 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685059655] [2019-11-20 10:42:57,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:42:57,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 10:42:57,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371557070] [2019-11-20 10:42:58,150 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-20 10:42:58,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:42:58,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:42:58,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:42:58,234 INFO L87 Difference]: Start difference. First operand 177 states and 241 transitions. cyclomatic complexity: 67 Second operand 5 states. [2019-11-20 10:42:58,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:42:58,456 INFO L93 Difference]: Finished difference Result 584 states and 797 transitions. [2019-11-20 10:42:58,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 10:42:58,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 584 states and 797 transitions. [2019-11-20 10:42:58,466 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 437 [2019-11-20 10:42:58,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 584 states to 584 states and 797 transitions. [2019-11-20 10:42:58,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 584 [2019-11-20 10:42:58,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 584 [2019-11-20 10:42:58,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 584 states and 797 transitions. [2019-11-20 10:42:58,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:42:58,479 INFO L688 BuchiCegarLoop]: Abstraction has 584 states and 797 transitions. [2019-11-20 10:42:58,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states and 797 transitions. [2019-11-20 10:42:58,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 348. [2019-11-20 10:42:58,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-20 10:42:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 464 transitions. [2019-11-20 10:42:58,526 INFO L711 BuchiCegarLoop]: Abstraction has 348 states and 464 transitions. [2019-11-20 10:42:58,528 INFO L591 BuchiCegarLoop]: Abstraction has 348 states and 464 transitions. [2019-11-20 10:42:58,528 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 10:42:58,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 348 states and 464 transitions. [2019-11-20 10:42:58,531 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 252 [2019-11-20 10:42:58,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:42:58,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:42:58,534 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:42:58,534 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:42:58,534 INFO L794 eck$LassoCheckResult]: Stem: 1511#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 1463#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1464#L578 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1495#L586 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1527#L130 assume 0 != main_~tmp~0; 1499#L103 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1500#L171-1 [2019-11-20 10:42:58,535 INFO L796 eck$LassoCheckResult]: Loop: 1500#L171-1 assume !false; 1710#L793 assume test_~splverifierCounter~0 < 4; 1711#L794 test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 1767#L802 assume !(0 != test_~tmp~8); 1765#L802-1 test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 1763#L812 assume !(0 != test_~tmp___0~2); 1762#L812-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 1760#L822 assume 0 != test_~tmp___2~0; 1531#L828-1 assume !(0 != ~pumpRunning~0); 1516#L604 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1474#L636 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1440#L932 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1441#L937 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 1510#L756 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1543#L756-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1545#L762 processEnvironment_#t~ret40 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 1656#L640 assume !(0 != processEnvironment_~tmp~5); 1504#L611 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1717#L892-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 1716#L165 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1715#L924 __utac_acc__Specification3_spec__1_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 1712#L171 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1500#L171-1 [2019-11-20 10:42:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:58,535 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-20 10:42:58,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:58,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141412651] [2019-11-20 10:42:58,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:58,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:42:58,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:58,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1507450700, now seen corresponding path program 1 times [2019-11-20 10:42:58,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:58,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601965750] [2019-11-20 10:42:58,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:58,683 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:42:58,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:42:58,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1534211470, now seen corresponding path program 1 times [2019-11-20 10:42:58,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:42:58,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350884897] [2019-11-20 10:42:58,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:42:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:42:58,796 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:42:59,030 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-20 10:43:31,701 WARN L191 SmtUtils]: Spent 32.57 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-20 10:43:47,527 WARN L191 SmtUtils]: Spent 15.82 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-20 10:43:47,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:43:47 BoogieIcfgContainer [2019-11-20 10:43:47,611 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 10:43:47,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:43:47,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:43:47,612 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:43:47,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:42:56" (3/4) ... [2019-11-20 10:43:47,615 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 10:43:47,723 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4ad481d1-f49e-4a21-be85-da3d5655bc19/bin/uautomizer/witness.graphml [2019-11-20 10:43:47,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:43:47,725 INFO L168 Benchmark]: Toolchain (without parser) took 53100.36 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 338.2 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -270.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:43:47,725 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:43:47,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -206.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:43:47,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.87 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:43:47,727 INFO L168 Benchmark]: Boogie Preprocessor took 47.45 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. [2019-11-20 10:43:47,728 INFO L168 Benchmark]: RCFGBuilder took 937.85 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: 61.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:43:47,729 INFO L168 Benchmark]: BuchiAutomizer took 51258.70 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -147.3 MB). Peak memory consumption was 404.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:43:47,743 INFO L168 Benchmark]: Witness Printer took 112.08 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:43:47,745 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 659.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -206.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.87 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.45 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 937.85 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: 61.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 51258.70 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -147.3 MB). Peak memory consumption was 404.4 MB. Max. memory is 11.5 GB. * Witness Printer took 112.08 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 348 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 51.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 50.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 317 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 348 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 416 SDtfs, 1042 SDslu, 1211 SDs, 0 SdLazy, 143 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 792]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1679} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60fc251e=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@163a5091=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11e9aec0=0, retValue_acc=0, NULL=0, retValue_acc=1, NULL=1679, NULL=6480, NULL=6469, NULL=0, NULL=6478, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, NULL=8320, retValue_acc=0, NULL=0, tmp___1=0, tmp=0, NULL=8319, tmp___0=1, NULL=2622, tmp=0, cleanupTimeShifts=4, NULL=1680, NULL=6474, NULL=8318, NULL=6479, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f159057=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=6470, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54ab047=0, NULL=6473, retValue_acc=0, \result=0, NULL=2624, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=6481, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26bff30b=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=6477, retValue_acc=1, \result=1, NULL=6476, NULL=6472, NULL=8321, NULL=0, NULL=0, tmp=1, tmp___2=55, tmp___0=0, retValue_acc=1, NULL=8322, splverifierCounter=0, \result=0, NULL=6475, tmp___1=0, head=0, NULL=0, tmp=0, NULL=2625, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@beba649=0, NULL=0, NULL=8323, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bfad5ac=55, NULL=2623, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56f15e35=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f6f9a21=0, NULL=0, NULL=6482, NULL=0, NULL=6471} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 Loop: [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND FALSE !(\read(tmp)) [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND TRUE \read(tmp___2) [L604] COND FALSE !(\read(pumpRunning)) [L611] COND TRUE \read(systemActive) [L633] int tmp ; [L636] COND TRUE ! pumpRunning [L748] int retValue_acc ; [L749] int tmp ; [L750] int tmp___0 ; [L929] int retValue_acc ; [L932] COND TRUE waterLevel < 2 [L933] retValue_acc = 1 [L934] return (retValue_acc); [L754] tmp = isHighWaterSensorDry() [L756] COND TRUE \read(tmp) [L757] tmp___0 = 0 [L761] retValue_acc = tmp___0 [L762] return (retValue_acc); [L638] tmp = isHighWaterLevel() [L640] COND FALSE !(\read(tmp)) [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] tmp___0 = getWaterLevel() [L171] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...