./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product40_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_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product40_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/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 9c111f83061d8c18367444893b685a787d8ca976 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:46:27,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:46:27,871 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:46:27,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:46:27,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:46:27,878 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:46:27,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:46:27,880 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:46:27,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:46:27,881 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:46:27,882 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:46:27,882 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:46:27,883 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:46:27,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:46:27,884 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:46:27,885 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:46:27,885 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:46:27,887 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:46:27,888 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:46:27,889 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:46:27,889 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:46:27,890 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:46:27,892 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:46:27,892 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:46:27,892 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:46:27,893 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:46:27,893 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:46:27,894 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:46:27,894 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:46:27,895 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:46:27,895 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:46:27,896 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:46:27,896 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:46:27,896 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:46:27,897 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:46:27,897 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:46:27,897 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 11:46:27,906 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:46:27,906 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:46:27,907 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:46:27,907 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:46:27,907 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:46:27,907 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:46:27,907 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:46:27,907 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:46:27,907 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:46:27,908 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:46:27,908 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:46:27,908 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:46:27,908 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:46:27,908 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:46:27,908 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:46:27,908 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:46:27,909 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:46:27,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:46:27,909 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:46:27,909 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:46:27,909 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:46:27,909 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:46:27,909 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:46:27,909 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:46:27,910 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:46:27,910 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:46:27,910 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:46:27,910 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:46:27,910 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:46:27,910 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:46:27,910 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:46:27,911 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:46:27,911 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_95830836-af7d-45d4-b714-0b09cde85f7c/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 -> 9c111f83061d8c18367444893b685a787d8ca976 [2018-11-18 11:46:27,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:46:27,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:46:27,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:46:27,946 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:46:27,946 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:46:27,946 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product40_true-unreach-call_false-termination.cil.c [2018-11-18 11:46:27,980 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/data/e9e168f23/2daa06d8a09e4dd8848b909011f6c0f0/FLAG67f1229c3 [2018-11-18 11:46:28,412 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:46:28,413 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/sv-benchmarks/c/product-lines/minepump_spec2_product40_true-unreach-call_false-termination.cil.c [2018-11-18 11:46:28,421 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/data/e9e168f23/2daa06d8a09e4dd8848b909011f6c0f0/FLAG67f1229c3 [2018-11-18 11:46:28,429 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/data/e9e168f23/2daa06d8a09e4dd8848b909011f6c0f0 [2018-11-18 11:46:28,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:46:28,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:46:28,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:46:28,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:46:28,435 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:46:28,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28, skipping insertion in model container [2018-11-18 11:46:28,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:46:28,472 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:46:28,665 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:46:28,674 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:46:28,787 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:46:28,809 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:46:28,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28 WrapperNode [2018-11-18 11:46:28,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:46:28,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:46:28,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:46:28,810 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:46:28,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:46:28,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:46:28,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:46:28,857 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:46:28,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... [2018-11-18 11:46:28,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:46:28,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:46:28,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:46:28,886 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:46:28,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/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 11:46:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:46:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:46:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:46:29,462 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:46:29,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:46:29 BoogieIcfgContainer [2018-11-18 11:46:29,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:46:29,463 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:46:29,463 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:46:29,466 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:46:29,466 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:46:29,466 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:46:28" (1/3) ... [2018-11-18 11:46:29,467 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48d21644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:46:29, skipping insertion in model container [2018-11-18 11:46:29,467 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:46:29,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:28" (2/3) ... [2018-11-18 11:46:29,468 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48d21644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:46:29, skipping insertion in model container [2018-11-18 11:46:29,468 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:46:29,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:46:29" (3/3) ... [2018-11-18 11:46:29,469 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product40_true-unreach-call_false-termination.cil.c [2018-11-18 11:46:29,503 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:46:29,503 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:46:29,503 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:46:29,503 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:46:29,503 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:46:29,504 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:46:29,504 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:46:29,504 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:46:29,504 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:46:29,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states. [2018-11-18 11:46:29,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2018-11-18 11:46:29,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:46:29,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:46:29,546 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:46:29,547 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:46:29,547 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:46:29,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states. [2018-11-18 11:46:29,552 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2018-11-18 11:46:29,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:46:29,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:46:29,553 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:46:29,553 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:46:29,558 INFO L794 eck$LassoCheckResult]: Stem: 128#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 44];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 77];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 101];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 116];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 104];#memory_int := #memory_int[#t~string5.base,5 + #t~string5.offset := 58];#memory_int := #memory_int[#t~string5.base,6 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 67];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 82];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 73];#memory_int := #memory_int[#t~string7.base,3 + #t~string7.offset := 84];#memory_int := #memory_int[#t~string7.base,4 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 75];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 41];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 44];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 80];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 117];#memory_int := #memory_int[#t~string26.base,3 + #t~string26.offset := 109];#memory_int := #memory_int[#t~string26.base,4 + #t~string26.offset := 112];#memory_int := #memory_int[#t~string26.base,5 + #t~string26.offset := 58];#memory_int := #memory_int[#t~string26.base,6 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 110];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 79];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 41];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 32];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 10];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(21);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(25);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 15#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 73#L956true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 166#L949true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 78#L964true main_#t~ret71 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 79#L920true assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 43#L893true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 146#L49true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 92#L196-3true [2018-11-18 11:46:29,558 INFO L796 eck$LassoCheckResult]: Loop: 92#L196-3true assume true; 96#L196-1true assume !false; 3#L197true assume test_~splverifierCounter~0 < 4; 117#L198true test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 159#L206true assume !(0 != test_~tmp~1); 152#L206-2true test_~tmp___0~1 := test_#t~nondet13;havoc test_#t~nondet13; 50#L216true assume !(0 != test_~tmp___0~1); 44#L216-2true test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 110#L226true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 72#L455true assume { :end_inline_startSystem } true; 102#L234-2true assume { :begin_inline_timeShift } true; 66#L265true assume !(0 != ~pumpRunning~0); 62#L265-2true assume !(0 != ~systemActive~0); 141#L272-1true 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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 25#L131-1true __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; 147#L60true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 144#L60-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 31#L282true assume { :end_inline_timeShift } true; 92#L196-3true [2018-11-18 11:46:29,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:46:29,564 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 11:46:29,565 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:46:29,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:46:29,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:29,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:46:29,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:29,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:46:29,718 INFO L82 PathProgramCache]: Analyzing trace with hash -2142665607, now seen corresponding path program 1 times [2018-11-18 11:46:29,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:46:29,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:46:29,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:29,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:46:29,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:46:29,751 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 11:46:29,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:46:29,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:46:29,754 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:46:29,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:46:29,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:46:29,765 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 3 states. [2018-11-18 11:46:29,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:46:29,846 INFO L93 Difference]: Finished difference Result 318 states and 422 transitions. [2018-11-18 11:46:29,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:46:29,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 422 transitions. [2018-11-18 11:46:29,853 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 208 [2018-11-18 11:46:29,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 298 states and 401 transitions. [2018-11-18 11:46:29,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 298 [2018-11-18 11:46:29,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 298 [2018-11-18 11:46:29,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 401 transitions. [2018-11-18 11:46:29,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:46:29,862 INFO L705 BuchiCegarLoop]: Abstraction has 298 states and 401 transitions. [2018-11-18 11:46:29,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 401 transitions. [2018-11-18 11:46:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2018-11-18 11:46:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2018-11-18 11:46:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 397 transitions. [2018-11-18 11:46:29,896 INFO L728 BuchiCegarLoop]: Abstraction has 295 states and 397 transitions. [2018-11-18 11:46:29,896 INFO L608 BuchiCegarLoop]: Abstraction has 295 states and 397 transitions. [2018-11-18 11:46:29,896 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:46:29,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 295 states and 397 transitions. [2018-11-18 11:46:29,899 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2018-11-18 11:46:29,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:46:29,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:46:29,900 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:46:29,900 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 11:46:29,900 INFO L794 eck$LassoCheckResult]: Stem: 650#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 44];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 77];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 101];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 116];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 104];#memory_int := #memory_int[#t~string5.base,5 + #t~string5.offset := 58];#memory_int := #memory_int[#t~string5.base,6 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 67];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 82];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 73];#memory_int := #memory_int[#t~string7.base,3 + #t~string7.offset := 84];#memory_int := #memory_int[#t~string7.base,4 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 75];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 41];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 44];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 80];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 117];#memory_int := #memory_int[#t~string26.base,3 + #t~string26.offset := 109];#memory_int := #memory_int[#t~string26.base,4 + #t~string26.offset := 112];#memory_int := #memory_int[#t~string26.base,5 + #t~string26.offset := 58];#memory_int := #memory_int[#t~string26.base,6 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 110];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 79];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 41];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 32];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 10];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(21);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(25);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 518#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 519#L956 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 602#L949 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 609#L964 main_#t~ret71 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 610#L920 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 555#L893 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 556#L49 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 540#L196-3 [2018-11-18 11:46:29,900 INFO L796 eck$LassoCheckResult]: Loop: 540#L196-3 assume true; 622#L196-1 assume !false; 494#L197 assume test_~splverifierCounter~0 < 4; 495#L198 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 643#L206 assume !(0 != test_~tmp~1); 512#L206-2 test_~tmp___0~1 := test_#t~nondet13;havoc test_#t~nondet13; 564#L216 assume !(0 != test_~tmp___0~1); 557#L216-2 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 558#L226 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 600#L455 assume { :end_inline_startSystem } true; 601#L234-2 assume { :begin_inline_timeShift } true; 591#L265 assume !(0 != ~pumpRunning~0); 584#L265-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 574#L323 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 575#L297-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 629#L289-3 assume { :end_inline_processEnvironment__wrappee__base } true; 630#L297-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 580#L323-1 assume { :end_inline_processEnvironment } true; 581#L272-1 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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 531#L131-1 __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; 532#L60 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 530#L60-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 539#L282 assume { :end_inline_timeShift } true; 540#L196-3 [2018-11-18 11:46:29,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:46:29,901 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 11:46:29,901 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:46:29,901 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:46:29,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:29,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:46:29,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:29,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:46:29,958 INFO L82 PathProgramCache]: Analyzing trace with hash -442642134, now seen corresponding path program 1 times [2018-11-18 11:46:29,959 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:46:29,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:46:29,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:29,960 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:46:29,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:46:29,980 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 11:46:29,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:46:29,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:46:29,981 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:46:29,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:46:29,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:46:29,981 INFO L87 Difference]: Start difference. First operand 295 states and 397 transitions. cyclomatic complexity: 105 Second operand 3 states. [2018-11-18 11:46:30,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:46:30,068 INFO L93 Difference]: Finished difference Result 417 states and 542 transitions. [2018-11-18 11:46:30,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:46:30,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 417 states and 542 transitions. [2018-11-18 11:46:30,072 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2018-11-18 11:46:30,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 417 states to 417 states and 542 transitions. [2018-11-18 11:46:30,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 417 [2018-11-18 11:46:30,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 417 [2018-11-18 11:46:30,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 417 states and 542 transitions. [2018-11-18 11:46:30,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:46:30,077 INFO L705 BuchiCegarLoop]: Abstraction has 417 states and 542 transitions. [2018-11-18 11:46:30,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states and 542 transitions. [2018-11-18 11:46:30,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2018-11-18 11:46:30,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2018-11-18 11:46:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 542 transitions. [2018-11-18 11:46:30,092 INFO L728 BuchiCegarLoop]: Abstraction has 417 states and 542 transitions. [2018-11-18 11:46:30,092 INFO L608 BuchiCegarLoop]: Abstraction has 417 states and 542 transitions. [2018-11-18 11:46:30,093 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 11:46:30,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 417 states and 542 transitions. [2018-11-18 11:46:30,095 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2018-11-18 11:46:30,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:46:30,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:46:30,096 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:46:30,096 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] [2018-11-18 11:46:30,097 INFO L794 eck$LassoCheckResult]: Stem: 1373#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 44];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 77];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 101];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 116];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 104];#memory_int := #memory_int[#t~string5.base,5 + #t~string5.offset := 58];#memory_int := #memory_int[#t~string5.base,6 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 67];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 82];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 73];#memory_int := #memory_int[#t~string7.base,3 + #t~string7.offset := 84];#memory_int := #memory_int[#t~string7.base,4 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 75];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 41];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 44];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 80];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 117];#memory_int := #memory_int[#t~string26.base,3 + #t~string26.offset := 109];#memory_int := #memory_int[#t~string26.base,4 + #t~string26.offset := 112];#memory_int := #memory_int[#t~string26.base,5 + #t~string26.offset := 58];#memory_int := #memory_int[#t~string26.base,6 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 110];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 79];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 41];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 32];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 10];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(21);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(25);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1238#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 1239#L956 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1319#L949 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1324#L964 main_#t~ret71 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 1325#L920 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 1274#L893 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1275#L49 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1383#L196-3 [2018-11-18 11:46:30,097 INFO L796 eck$LassoCheckResult]: Loop: 1383#L196-3 assume true; 1488#L196-1 assume !false; 1487#L197 assume test_~splverifierCounter~0 < 4; 1486#L198 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 1484#L206 assume !(0 != test_~tmp~1); 1482#L206-2 test_~tmp___0~1 := test_#t~nondet13;havoc test_#t~nondet13; 1480#L216 assume !(0 != test_~tmp___0~1); 1272#L216-2 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 1273#L226 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1317#L455 assume { :end_inline_startSystem } true; 1318#L234-2 assume { :begin_inline_timeShift } true; 1308#L265 assume !(0 != ~pumpRunning~0); 1301#L265-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1292#L323 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1293#L297-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret35, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1367#L171-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1361#L176-1 isHighWaterLevel_#t~ret35 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret35;havoc isHighWaterLevel_#t~ret35; 1280#L425-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~2 := 0; 1256#L425-5 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1215#L431-1 processEnvironment__wrappee__highWaterSensor_#t~ret16 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret16;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16; 1216#L301-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 1313#L289-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1364#L297-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1297#L323-1 assume { :end_inline_processEnvironment } true; 1298#L272-1 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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1493#L131-1 __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; 1384#L60 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 1248#L60-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1489#L282 assume { :end_inline_timeShift } true; 1383#L196-3 [2018-11-18 11:46:30,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:46:30,097 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 11:46:30,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:46:30,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:46:30,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:30,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:46:30,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:30,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:46:30,143 INFO L82 PathProgramCache]: Analyzing trace with hash 2044549186, now seen corresponding path program 1 times [2018-11-18 11:46:30,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:46:30,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:46:30,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:30,144 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:46:30,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:30,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:46:30,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1344001543, now seen corresponding path program 1 times [2018-11-18 11:46:30,157 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:46:30,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:46:30,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:30,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:46:30,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:46:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:46:30,318 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2018-11-18 11:48:04,478 WARN L180 SmtUtils]: Spent 1.57 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 11:48:54,818 WARN L180 SmtUtils]: Spent 50.33 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 11:48:54,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:48:54 BoogieIcfgContainer [2018-11-18 11:48:54,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:48:54,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:48:54,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:48:54,890 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:48:54,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:46:29" (3/4) ... [2018-11-18 11:48:54,894 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 11:48:54,967 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_95830836-af7d-45d4-b714-0b09cde85f7c/bin-2019/uautomizer/witness.graphml [2018-11-18 11:48:54,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:48:54,968 INFO L168 Benchmark]: Toolchain (without parser) took 146536.71 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 233.8 MB). Free memory was 955.4 MB in the beginning and 886.0 MB in the end (delta: 69.4 MB). Peak memory consumption was 303.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:48:54,970 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:48:54,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:48:54,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.98 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:48:54,972 INFO L168 Benchmark]: Boogie Preprocessor took 28.36 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 11:48:54,972 INFO L168 Benchmark]: RCFGBuilder took 576.98 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: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:48:54,973 INFO L168 Benchmark]: BuchiAutomizer took 145426.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 891.6 MB in the end (delta: 165.8 MB). Peak memory consumption was 271.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:48:54,973 INFO L168 Benchmark]: Witness Printer took 77.97 ms. Allocated memory is still 1.3 GB. Free memory was 891.6 MB in the beginning and 886.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:48:54,976 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 377.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.98 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.36 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 576.98 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: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 145426.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 891.6 MB in the end (delta: 165.8 MB). Peak memory consumption was 271.4 MB. Max. memory is 11.5 GB. * Witness Printer took 77.97 ms. Allocated memory is still 1.3 GB. Free memory was 891.6 MB in the beginning and 886.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 417 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 145.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 145.0s. 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 417 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 438 SDtfs, 355 SDslu, 298 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 196]: 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, retValue_acc=0, "libacc.c"=0, "libacc.c"=18, "i > 0 && i <= this->argsCount"=0, "CRIT"=34, "i > 0 && i <= this->argsCount"=11, retValue_acc=0, ")"=31, "libacc.c"=12, "__utac__get_this_arg"=17, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, retValue_acc=0, "__utac__get_this_argtype"=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2363fc39=0, "__utac__get_this_argtype"=8, "libacc.c"=0, tmp___1=0, "Pump(System:"=29, "On"=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17491c08=0, cleanupTimeShifts=4, "\n"=20, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@589ec47b=0, tmp=0, NULL=0, systemActive=1, waterLevel=1, ") "=0, "Off"=0, "libacc.c"=15, \result=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_arg"=0, \result=1, head=0, pumpRunning=0, "i > 0 && i <= this->argsCount"=16, \result=0, "i > 0 && i <= this->argsCount"=38, retValue_acc=1, tmp=1, "\n"=0, \result=1, tmp___0=0, "libacc.c"=39, "On"=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@490727e9=0, tmp=1, ",Meth:"=35, tmp___2=174, "Off"=23, tmp___0=0, ",Pump:"=26, splverifierCounter=0, "Env(Water:%i"=0, "__utac__get_this_arg"=0, "OK"=0, "CRIT"=0, ",Meth:"=0, methAndRunningLastTime=0, \result=0, "OK"=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@655a2cce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45747726=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32597d01=174, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@593a7091=0, "__utac__get_this_arg"=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d94eae3=0, tmp=0, head=0, ",Pump:"=0, "On"=0, "Off"=27, "Off"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2abe8a4a=0, "Pump(System:"=0, ") "=22, "Env(Water:%i"=36, tmp=0, "On"=0, ")"=0, "i > 0 && i <= this->argsCount"=19, "__utac__get_this_argtype"=37} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 196]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L140] FCALL "Env(Water:%i" [L141] FCALL ",Meth:" [L145] FCALL "CRIT" [L149] FCALL "OK" [L153] FCALL ")" [L385] FCALL "Pump(System:" [L389] FCALL "On" [L393] FCALL "Off" [L397] FCALL ",Pump:" [L401] FCALL "On" [L405] FCALL "Off" [L409] FCALL ") " [L411] FCALL "\n" [L756] FCALL "i > 0 && i <= this->argsCount" [L756] FCALL "libacc.c" [L757] FCALL "__utac__get_this_arg" [L763] FCALL "i > 0 && i <= this->argsCount" [L763] FCALL "libacc.c" [L764] FCALL "__utac__get_this_arg" [L802] FCALL "i > 0 && i <= this->argsCount" [L802] FCALL "libacc.c" [L803] FCALL "__utac__get_this_argtype" [L809] FCALL "i > 0 && i <= this->argsCount" [L809] FCALL "libacc.c" [L810] FCALL "__utac__get_this_argtype" [L43] int methAndRunningLastTime ; [L88] int waterLevel = 1; [L89] int methaneLevelCritical = 0; [L258] int pumpRunning = 0; [L259] int systemActive = 1; [L834] int cleanupTimeShifts = 4; [L628] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L911] int retValue_acc ; [L912] int tmp ; [L916] FCALL select_helpers() [L917] FCALL select_features() [L918] CALL, EXPR valid_product() [L960] int retValue_acc ; [L963] retValue_acc = 1 [L964] RET return (retValue_acc); [L918] EXPR valid_product() [L918] tmp = valid_product() [L920] COND TRUE \read(tmp) [L922] FCALL setup() [L923] CALL runTest() [L901] CALL __utac_acc__Specification2_spec__1() [L48] RET methAndRunningLastTime = 0 [L901] __utac_acc__Specification2_spec__1() [L902] CALL test() [L187] int splverifierCounter ; [L188] int tmp ; [L189] int tmp___0 ; [L190] int tmp___1 ; [L191] int tmp___2 ; [L194] splverifierCounter = 0 Loop: [L196] COND TRUE 1 [L198] COND TRUE splverifierCounter < 4 [L204] tmp = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp)) [L214] tmp___0 = __VERIFIER_nondet_int() [L216] COND FALSE !(\read(tmp___0)) [L224] tmp___2 = __VERIFIER_nondet_int() [L226] COND TRUE \read(tmp___2) [L228] CALL startSystem() [L454] RET systemActive = 1 [L228] startSystem() [L243] CALL timeShift() [L265] COND FALSE !(\read(pumpRunning)) [L272] COND TRUE \read(systemActive) [L274] CALL processEnvironment() [L320] int tmp ; [L323] COND FALSE !(\read(pumpRunning)) [L338] CALL processEnvironment__wrappee__highWaterSensor() [L294] int tmp ; [L297] COND TRUE ! pumpRunning [L299] CALL, EXPR isHighWaterLevel() [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L423] CALL, EXPR isHighWaterSensorDry() [L168] int retValue_acc ; [L171] COND TRUE waterLevel < 2 [L172] retValue_acc = 1 [L173] RET return (retValue_acc); [L423] EXPR isHighWaterSensorDry() [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] RET return (retValue_acc); [L299] EXPR isHighWaterLevel() [L299] tmp = isHighWaterLevel() [L301] COND FALSE !(\read(tmp)) [L307] RET, FCALL processEnvironment__wrappee__base() [L338] RET processEnvironment__wrappee__highWaterSensor() [L274] processEnvironment() [L280] CALL __utac_acc__Specification2_spec__2() [L53] int tmp ; [L54] int tmp___0 ; [L58] CALL, EXPR isMethaneLevelCritical() [L127] int retValue_acc ; [L130] retValue_acc = methaneLevelCritical [L131] RET return (retValue_acc); [L58] EXPR isMethaneLevelCritical() [L58] tmp = isMethaneLevelCritical() [L60] COND FALSE !(\read(tmp)) [L76] RET methAndRunningLastTime = 0 [L280] RET __utac_acc__Specification2_spec__2() [L243] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...