./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product61_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a6118f2b5d6b5aa5216f9e2bec3bfdc8db33c9f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:51:31,849 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:51:31,850 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:51:31,858 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:51:31,858 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:51:31,859 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:51:31,860 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:51:31,861 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:51:31,862 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:51:31,863 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:51:31,863 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:51:31,864 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:51:31,864 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:51:31,865 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:51:31,866 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:51:31,867 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:51:31,867 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:51:31,868 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:51:31,870 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:51:31,871 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:51:31,872 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:51:31,873 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:51:31,874 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:51:31,875 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:51:31,875 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:51:31,875 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:51:31,876 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:51:31,877 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:51:31,877 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:51:31,878 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:51:31,878 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:51:31,879 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:51:31,879 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:51:31,879 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:51:31,880 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:51:31,880 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:51:31,881 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 12:51:31,892 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:51:31,892 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:51:31,893 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:51:31,893 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:51:31,893 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:51:31,893 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 12:51:31,893 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 12:51:31,893 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 12:51:31,894 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 12:51:31,894 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 12:51:31,894 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 12:51:31,894 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:51:31,894 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:51:31,894 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:51:31,894 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:51:31,895 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:51:31,895 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:51:31,895 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 12:51:31,895 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 12:51:31,895 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 12:51:31,895 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:51:31,895 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:51:31,896 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 12:51:31,896 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:51:31,896 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 12:51:31,896 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:51:31,896 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:51:31,896 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 12:51:31,896 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:51:31,897 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:51:31,897 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 12:51:31,897 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 12:51:31,898 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a6118f2b5d6b5aa5216f9e2bec3bfdc8db33c9f [2018-11-18 12:51:31,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:51:31,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:51:31,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:51:31,932 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:51:31,932 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:51:31,933 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product61_true-unreach-call_false-termination.cil.c [2018-11-18 12:51:31,971 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/data/cb1cd43be/ad3209606b0e4495a3c2212b3daf77ab/FLAG2b396a769 [2018-11-18 12:51:32,326 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:51:32,327 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/sv-benchmarks/c/product-lines/minepump_spec2_product61_true-unreach-call_false-termination.cil.c [2018-11-18 12:51:32,334 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/data/cb1cd43be/ad3209606b0e4495a3c2212b3daf77ab/FLAG2b396a769 [2018-11-18 12:51:32,729 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/data/cb1cd43be/ad3209606b0e4495a3c2212b3daf77ab [2018-11-18 12:51:32,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:51:32,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:51:32,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:51:32,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:51:32,735 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:51:32,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:51:32" (1/1) ... [2018-11-18 12:51:32,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5ed404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:32, skipping insertion in model container [2018-11-18 12:51:32,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:51:32" (1/1) ... [2018-11-18 12:51:32,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:51:32,774 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:51:32,974 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:51:32,982 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:51:33,085 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:51:33,110 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:51:33,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33 WrapperNode [2018-11-18 12:51:33,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:51:33,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:51:33,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:51:33,111 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:51:33,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... [2018-11-18 12:51:33,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... [2018-11-18 12:51:33,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:51:33,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:51:33,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:51:33,155 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:51:33,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... [2018-11-18 12:51:33,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... [2018-11-18 12:51:33,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... [2018-11-18 12:51:33,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... [2018-11-18 12:51:33,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... [2018-11-18 12:51:33,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... [2018-11-18 12:51:33,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... [2018-11-18 12:51:33,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:51:33,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:51:33,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:51:33,198 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:51:33,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:51:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:51:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:51:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:51:34,013 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:51:34,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:51:34 BoogieIcfgContainer [2018-11-18 12:51:34,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:51:34,015 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 12:51:34,015 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 12:51:34,017 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 12:51:34,018 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:51:34,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 12:51:32" (1/3) ... [2018-11-18 12:51:34,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eedf226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:51:34, skipping insertion in model container [2018-11-18 12:51:34,019 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:51:34,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:51:33" (2/3) ... [2018-11-18 12:51:34,020 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eedf226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:51:34, skipping insertion in model container [2018-11-18 12:51:34,020 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:51:34,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:51:34" (3/3) ... [2018-11-18 12:51:34,021 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product61_true-unreach-call_false-termination.cil.c [2018-11-18 12:51:34,057 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:51:34,057 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 12:51:34,057 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 12:51:34,057 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 12:51:34,057 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:51:34,058 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:51:34,058 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 12:51:34,058 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:51:34,058 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 12:51:34,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states. [2018-11-18 12:51:34,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2018-11-18 12:51:34,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:51:34,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:51:34,110 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:51:34,111 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:51:34,111 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 12:51:34,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states. [2018-11-18 12:51:34,119 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2018-11-18 12:51:34,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:51:34,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:51:34,120 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:51:34,120 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:51:34,124 INFO L794 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 44];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 77];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 101];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 116];#memory_int := #memory_int[#t~string46.base,4 + #t~string46.offset := 104];#memory_int := #memory_int[#t~string46.base,5 + #t~string46.offset := 58];#memory_int := #memory_int[#t~string46.base,6 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 67];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 82];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 73];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 84];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 75];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 41];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret2, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 204#L584true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6#L577true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 235#L592true main_#t~ret2 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret2;havoc main_#t~ret2; 299#L173true assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 309#L145true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 97#L49true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 163#L607-3true [2018-11-18 12:51:34,125 INFO L796 eck$LassoCheckResult]: Loop: 163#L607-3true assume true; 159#L607-1true assume !false; 286#L608true assume test_~splverifierCounter~0 < 4; 30#L609true test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 201#L617true assume !(0 != test_~tmp~5); 206#L617-2true test_~tmp___0~1 := test_#t~nondet40;havoc test_#t~nondet40; 108#L627true assume !(0 != test_~tmp___0~1); 115#L627-2true test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 24#L637true assume 0 != test_~tmp___2~0; 7#L643-2true assume { :begin_inline_timeShift } true; 256#L779true assume !(0 != ~pumpRunning~0); 220#L779-2true assume !(0 != ~systemActive~0); 16#L786-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 73#L710-5true __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 98#L60true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 94#L60-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 33#L796true assume { :end_inline_timeShift } true; 163#L607-3true [2018-11-18 12:51:34,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:34,130 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 12:51:34,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:51:34,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:51:34,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:34,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:34,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:34,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1274280955, now seen corresponding path program 1 times [2018-11-18 12:51:34,344 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:51:34,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:51:34,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:34,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:34,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:34,356 INFO L82 PathProgramCache]: Analyzing trace with hash 538339378, now seen corresponding path program 1 times [2018-11-18 12:51:34,357 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:51:34,357 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:51:34,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:34,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:34,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:51:34,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:51:34,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:51:34,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:51:34,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:51:34,554 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 6 states. [2018-11-18 12:51:34,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:51:34,685 INFO L93 Difference]: Finished difference Result 321 states and 424 transitions. [2018-11-18 12:51:34,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:51:34,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 424 transitions. [2018-11-18 12:51:34,694 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2018-11-18 12:51:34,700 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 311 states and 414 transitions. [2018-11-18 12:51:34,701 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 311 [2018-11-18 12:51:34,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 311 [2018-11-18 12:51:34,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 311 states and 414 transitions. [2018-11-18 12:51:34,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:51:34,705 INFO L705 BuchiCegarLoop]: Abstraction has 311 states and 414 transitions. [2018-11-18 12:51:34,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states and 414 transitions. [2018-11-18 12:51:34,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2018-11-18 12:51:34,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2018-11-18 12:51:34,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 414 transitions. [2018-11-18 12:51:34,740 INFO L728 BuchiCegarLoop]: Abstraction has 311 states and 414 transitions. [2018-11-18 12:51:34,741 INFO L608 BuchiCegarLoop]: Abstraction has 311 states and 414 transitions. [2018-11-18 12:51:34,741 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 12:51:34,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 414 transitions. [2018-11-18 12:51:34,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2018-11-18 12:51:34,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:51:34,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:51:34,744 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:51:34,744 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:51:34,744 INFO L794 eck$LassoCheckResult]: Stem: 793#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 44];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 77];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 101];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 116];#memory_int := #memory_int[#t~string46.base,4 + #t~string46.offset := 104];#memory_int := #memory_int[#t~string46.base,5 + #t~string46.offset := 58];#memory_int := #memory_int[#t~string46.base,6 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 67];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 82];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 73];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 84];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 75];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 41];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 676#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret2, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 677#L584 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 670#L577 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 671#L592 main_#t~ret2 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret2;havoc main_#t~ret2; 947#L173 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 973#L145 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 814#L49 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 723#L607-3 [2018-11-18 12:51:34,745 INFO L796 eck$LassoCheckResult]: Loop: 723#L607-3 assume true; 874#L607-1 assume !false; 875#L608 assume test_~splverifierCounter~0 < 4; 717#L609 test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 718#L617 assume !(0 != test_~tmp~5); 924#L617-2 test_~tmp___0~1 := test_#t~nondet40;havoc test_#t~nondet40; 828#L627 assume !(0 != test_~tmp___0~1); 716#L627-2 test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 705#L637 assume 0 != test_~tmp___2~0; 664#L643-2 assume { :begin_inline_timeShift } true; 672#L779 assume !(0 != ~pumpRunning~0); 900#L779-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 702#L863 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret57, isMethaneAlarm_~retValue_acc~10;havoc isMethaneAlarm_~retValue_acc~10;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 704#L710 isMethaneAlarm_#t~ret57 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10 := isMethaneAlarm_#t~ret57;havoc isMethaneAlarm_#t~ret57;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~10; 799#L924 processEnvironment_#t~ret55 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8 := processEnvironment_#t~ret55;havoc processEnvironment_#t~ret55; 857#L867 assume 0 != processEnvironment_~tmp~8;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 759#L914 assume { :end_inline_deactivatePump } true; 681#L863-1 assume { :end_inline_processEnvironment } true; 682#L786-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 692#L710-5 __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 785#L60 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 687#L60-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 722#L796 assume { :end_inline_timeShift } true; 723#L607-3 [2018-11-18 12:51:34,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:34,745 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 12:51:34,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:51:34,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:51:34,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:34,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:34,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:34,815 INFO L82 PathProgramCache]: Analyzing trace with hash 211600356, now seen corresponding path program 1 times [2018-11-18 12:51:34,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:51:34,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:51:34,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,816 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:51:34,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:51:34,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:51:34,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:51:34,836 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:51:34,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:51:34,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:51:34,836 INFO L87 Difference]: Start difference. First operand 311 states and 414 transitions. cyclomatic complexity: 105 Second operand 3 states. [2018-11-18 12:51:34,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:51:34,946 INFO L93 Difference]: Finished difference Result 323 states and 409 transitions. [2018-11-18 12:51:34,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:51:34,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 323 states and 409 transitions. [2018-11-18 12:51:34,949 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 222 [2018-11-18 12:51:34,951 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 323 states to 323 states and 409 transitions. [2018-11-18 12:51:34,951 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 323 [2018-11-18 12:51:34,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 323 [2018-11-18 12:51:34,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 323 states and 409 transitions. [2018-11-18 12:51:34,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:51:34,953 INFO L705 BuchiCegarLoop]: Abstraction has 323 states and 409 transitions. [2018-11-18 12:51:34,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states and 409 transitions. [2018-11-18 12:51:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2018-11-18 12:51:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-11-18 12:51:34,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 409 transitions. [2018-11-18 12:51:34,965 INFO L728 BuchiCegarLoop]: Abstraction has 323 states and 409 transitions. [2018-11-18 12:51:34,965 INFO L608 BuchiCegarLoop]: Abstraction has 323 states and 409 transitions. [2018-11-18 12:51:34,965 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 12:51:34,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 323 states and 409 transitions. [2018-11-18 12:51:34,967 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 222 [2018-11-18 12:51:34,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:51:34,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:51:34,968 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:51:34,968 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:51:34,968 INFO L794 eck$LassoCheckResult]: Stem: 1408#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 44];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 77];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 101];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 116];#memory_int := #memory_int[#t~string46.base,4 + #t~string46.offset := 104];#memory_int := #memory_int[#t~string46.base,5 + #t~string46.offset := 58];#memory_int := #memory_int[#t~string46.base,6 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 67];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 82];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 73];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 84];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 75];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 41];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1313#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret2, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 1314#L584 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1311#L577 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1312#L592 main_#t~ret2 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret2;havoc main_#t~ret2; 1532#L173 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 1557#L145 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1423#L49 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1354#L607-3 [2018-11-18 12:51:34,969 INFO L796 eck$LassoCheckResult]: Loop: 1354#L607-3 assume true; 1468#L607-1 assume !false; 1469#L608 assume test_~splverifierCounter~0 < 4; 1348#L609 test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 1349#L617 assume !(0 != test_~tmp~5); 1508#L617-2 test_~tmp___0~1 := test_#t~nondet40;havoc test_#t~nondet40; 1430#L627 assume !(0 != test_~tmp___0~1); 1347#L627-2 test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 1336#L637 assume 0 != test_~tmp___2~0; 1304#L643-2 assume { :begin_inline_timeShift } true; 1310#L779 assume !(0 != ~pumpRunning~0); 1523#L779-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 1334#L863 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret54, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 1335#L837-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1362#L811-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1486#L750-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1487#L755-3 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 1501#L982-9 assume 0 != isHighWaterLevel_~tmp~10;isHighWaterLevel_~tmp___0~2 := 0; 1552#L982-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1533#L988-3 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 1512#L815-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 1431#L803-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1432#L811-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1365#L837-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1318#L863-1 assume { :end_inline_processEnvironment } true; 1319#L786-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1328#L710-5 __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 1401#L60 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 1325#L60-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1353#L796 assume { :end_inline_timeShift } true; 1354#L607-3 [2018-11-18 12:51:34,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:34,969 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 12:51:34,969 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:51:34,969 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:51:34,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:34,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:34,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:35,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:35,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1928068434, now seen corresponding path program 1 times [2018-11-18 12:51:35,042 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:51:35,042 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:51:35,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:35,042 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:51:35,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:35,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:35,054 INFO L82 PathProgramCache]: Analyzing trace with hash 401041367, now seen corresponding path program 1 times [2018-11-18 12:51:35,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:51:35,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:51:35,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:35,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:35,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:51:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:52:40,186 WARN L180 SmtUtils]: Spent 1.08 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 12:53:19,595 WARN L180 SmtUtils]: Spent 39.40 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 12:53:19,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 12:53:19 BoogieIcfgContainer [2018-11-18 12:53:19,662 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 12:53:19,662 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:53:19,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:53:19,663 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:53:19,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:51:34" (3/4) ... [2018-11-18 12:53:19,665 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 12:53:19,709 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f40620b3-0ca6-482e-bfcf-0be8251461a5/bin-2019/uautomizer/witness.graphml [2018-11-18 12:53:19,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:53:19,710 INFO L168 Benchmark]: Toolchain (without parser) took 106978.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.1 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -155.5 MB). Peak memory consumption was 61.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:19,711 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:53:19,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:19,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.08 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:19,711 INFO L168 Benchmark]: Boogie Preprocessor took 42.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:19,712 INFO L168 Benchmark]: RCFGBuilder took 816.61 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: 94.3 MB). Peak memory consumption was 94.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:19,712 INFO L168 Benchmark]: BuchiAutomizer took 105647.54 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -66.6 MB). Peak memory consumption was 280.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:19,712 INFO L168 Benchmark]: Witness Printer took 47.30 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. [2018-11-18 12:53:19,714 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 377.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.08 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 816.61 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: 94.3 MB). Peak memory consumption was 94.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 105647.54 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -66.6 MB). Peak memory consumption was 280.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.30 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 323 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 105.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 105.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 323 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 719 SDtfs, 1900 SDslu, 137 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 607]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, "Off"=0, retValue_acc=0, ",Meth:"=0, ",Meth:"=28, ") "=36, "Env(Water:%i"=0, "On"=0, "Off"=35, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7977746a=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2533cf10=0, ",Pump:"=0, "Off"=0, tmp=0, "i > 0 && i <= this->argsCount"=14, "On"=0, tmp___1=0, "__utac__get_this_arg"=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75246b0d=0, cleanupTimeShifts=4, "libacc.c"=31, "libacc.c"=18, "libacc.c"=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d76e160=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@351ba6da=0, "OK"=26, tmp=0, "libacc.c"=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47bc5fcf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7daac4f2=169, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73500edd=0, NULL=0, systemActive=1, waterLevel=1, "Off"=39, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, retValue_acc=0, \result=0, "Env(Water:%i"=29, ")"=0, "OK"=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, \result=0, ")"=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57991e27=0, "i > 0 && i <= this->argsCount"=8, tmp=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_argtype"=22, retValue_acc=1, \result=1, "CRIT"=27, tmp___0=0, "On"=38, "On"=34, "libacc.c"=11, ") "=0, retValue_acc=0, "\n"=0, tmp___2=169, "i > 0 && i <= this->argsCount"=16, tmp___0=0, "__utac__get_this_arg"=17, tmp=1, splverifierCounter=0, "Pump(System:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3976bdd6=0, methAndRunningLastTime=0, \result=0, "\n"=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50525868=0, "Pump(System:"=24, head=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=19, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=12, tmp=0, tmp=0, "libacc.c"=0, "libacc.c"=0, "CRIT"=0, tmp=0, ",Pump:"=33} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 607]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L484] FCALL "i > 0 && i <= this->argsCount" [L484] FCALL "libacc.c" [L485] FCALL "__utac__get_this_arg" [L491] FCALL "i > 0 && i <= this->argsCount" [L491] FCALL "libacc.c" [L492] FCALL "__utac__get_this_arg" [L530] FCALL "i > 0 && i <= this->argsCount" [L530] FCALL "libacc.c" [L531] FCALL "__utac__get_this_argtype" [L537] FCALL "i > 0 && i <= this->argsCount" [L537] FCALL "libacc.c" [L538] FCALL "__utac__get_this_argtype" [L719] FCALL "Env(Water:%i" [L720] FCALL ",Meth:" [L724] FCALL "CRIT" [L728] FCALL "OK" [L732] FCALL ")" [L942] FCALL "Pump(System:" [L946] FCALL "On" [L950] FCALL "Off" [L954] FCALL ",Pump:" [L958] FCALL "On" [L962] FCALL "Off" [L966] FCALL ") " [L968] FCALL "\n" [L43] int methAndRunningLastTime ; [L82] int cleanupTimeShifts = 4; [L667] int waterLevel = 1; [L668] int methaneLevelCritical = 0; [L772] int pumpRunning = 0; [L773] int systemActive = 1; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L164] int retValue_acc ; [L165] int tmp ; [L169] FCALL select_helpers() [L170] FCALL select_features() [L171] CALL, EXPR valid_product() [L588] int retValue_acc ; [L591] retValue_acc = 1 [L592] RET return (retValue_acc); [L171] EXPR valid_product() [L171] tmp = valid_product() [L173] COND TRUE \read(tmp) [L175] FCALL setup() [L176] CALL runTest() [L154] CALL __utac_acc__Specification2_spec__1() [L48] RET methAndRunningLastTime = 0 [L154] __utac_acc__Specification2_spec__1() [L155] CALL test() [L598] int splverifierCounter ; [L599] int tmp ; [L600] int tmp___0 ; [L601] int tmp___1 ; [L602] int tmp___2 ; [L605] splverifierCounter = 0 Loop: [L607] COND TRUE 1 [L609] COND TRUE splverifierCounter < 4 [L615] tmp = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp)) [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp___0)) [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) [L650] CALL timeShift() [L779] COND FALSE !(\read(pumpRunning)) [L786] COND TRUE \read(systemActive) [L788] CALL processEnvironment() [L860] int tmp ; [L863] COND FALSE !(\read(pumpRunning)) [L878] CALL processEnvironment__wrappee__methaneQuery() [L834] int tmp ; [L837] COND FALSE !(\read(pumpRunning)) [L852] CALL processEnvironment__wrappee__highWaterSensor() [L808] int tmp ; [L811] COND TRUE ! pumpRunning [L813] CALL, EXPR isHighWaterLevel() [L974] int retValue_acc ; [L975] int tmp ; [L976] int tmp___0 ; [L980] CALL, EXPR isHighWaterSensorDry() [L747] int retValue_acc ; [L750] COND TRUE waterLevel < 2 [L751] retValue_acc = 1 [L752] RET return (retValue_acc); [L980] EXPR isHighWaterSensorDry() [L980] tmp = isHighWaterSensorDry() [L982] COND TRUE \read(tmp) [L983] tmp___0 = 0 [L987] retValue_acc = tmp___0 [L988] RET return (retValue_acc); [L813] EXPR isHighWaterLevel() [L813] tmp = isHighWaterLevel() [L815] COND FALSE !(\read(tmp)) [L821] RET, FCALL processEnvironment__wrappee__base() [L852] RET processEnvironment__wrappee__highWaterSensor() [L878] RET processEnvironment__wrappee__methaneQuery() [L788] processEnvironment() [L794] CALL __utac_acc__Specification2_spec__2() [L53] int tmp ; [L54] int tmp___0 ; [L58] CALL, EXPR isMethaneLevelCritical() [L706] int retValue_acc ; [L709] retValue_acc = methaneLevelCritical [L710] RET return (retValue_acc); [L58] EXPR isMethaneLevelCritical() [L58] tmp = isMethaneLevelCritical() [L60] COND FALSE !(\read(tmp)) [L76] RET methAndRunningLastTime = 0 [L794] RET __utac_acc__Specification2_spec__2() [L650] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...