./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product39_false-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_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product39_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/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 f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:24:16,711 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:24:16,713 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:24:16,722 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:24:16,722 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:24:16,722 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:24:16,724 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:24:16,725 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:24:16,727 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:24:16,728 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:24:16,748 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:24:16,748 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:24:16,749 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:24:16,750 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:24:16,750 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:24:16,751 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:24:16,764 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:24:16,765 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:24:16,767 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:24:16,780 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:24:16,781 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:24:16,782 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:24:16,784 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:24:16,784 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:24:16,784 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:24:16,785 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:24:16,785 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:24:16,786 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:24:16,787 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:24:16,789 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:24:16,790 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:24:16,790 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:24:16,790 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:24:16,790 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:24:16,791 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:24:16,793 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:24:16,793 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 17:24:16,806 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:24:16,806 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:24:16,807 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:24:16,807 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:24:16,807 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:24:16,808 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 17:24:16,808 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 17:24:16,808 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 17:24:16,808 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 17:24:16,808 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 17:24:16,808 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 17:24:16,809 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:24:16,809 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:24:16,809 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:24:16,809 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:24:16,809 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:24:16,809 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:24:16,809 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 17:24:16,810 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 17:24:16,810 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 17:24:16,810 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:24:16,810 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:24:16,810 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 17:24:16,810 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:24:16,810 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 17:24:16,811 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:24:16,811 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:24:16,811 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 17:24:16,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:24:16,814 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:24:16,814 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 17:24:16,814 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 17:24:16,815 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_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/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 -> f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe [2018-11-18 17:24:16,841 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:24:16,856 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:24:16,859 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:24:16,860 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:24:16,860 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:24:16,861 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product39_false-unreach-call_false-termination.cil.c [2018-11-18 17:24:16,936 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/data/0b02ef3cf/0cf01f4df65b466185c2732ec2edd64d/FLAGa1d43bf10 [2018-11-18 17:24:17,318 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:24:17,318 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/sv-benchmarks/c/product-lines/minepump_spec1_product39_false-unreach-call_false-termination.cil.c [2018-11-18 17:24:17,328 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/data/0b02ef3cf/0cf01f4df65b466185c2732ec2edd64d/FLAGa1d43bf10 [2018-11-18 17:24:17,338 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/data/0b02ef3cf/0cf01f4df65b466185c2732ec2edd64d [2018-11-18 17:24:17,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:24:17,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:24:17,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:24:17,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:24:17,344 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:24:17,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb2b19c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17, skipping insertion in model container [2018-11-18 17:24:17,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:24:17,414 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:24:17,654 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:24:17,663 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:24:17,787 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:24:17,807 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:24:17,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17 WrapperNode [2018-11-18 17:24:17,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:24:17,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:24:17,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:24:17,808 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:24:17,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:24:17,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:24:17,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:24:17,851 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:24:17,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... [2018-11-18 17:24:17,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:24:17,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:24:17,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:24:17,881 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:24:17,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/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 17:24:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:24:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:24:17,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:24:18,609 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:24:18,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:24:18 BoogieIcfgContainer [2018-11-18 17:24:18,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:24:18,610 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 17:24:18,610 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 17:24:18,612 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 17:24:18,613 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:24:18,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 05:24:17" (1/3) ... [2018-11-18 17:24:18,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@790f5ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:24:18, skipping insertion in model container [2018-11-18 17:24:18,614 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:24:18,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:17" (2/3) ... [2018-11-18 17:24:18,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@790f5ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:24:18, skipping insertion in model container [2018-11-18 17:24:18,614 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:24:18,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:24:18" (3/3) ... [2018-11-18 17:24:18,616 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product39_false-unreach-call_false-termination.cil.c [2018-11-18 17:24:18,645 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:24:18,646 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 17:24:18,646 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 17:24:18,646 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 17:24:18,646 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:24:18,647 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:24:18,647 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 17:24:18,647 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:24:18,647 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 17:24:18,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states. [2018-11-18 17:24:18,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2018-11-18 17:24:18,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:18,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:18,684 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:18,684 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 17:24:18,685 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 17:24:18,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states. [2018-11-18 17:24:18,690 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2018-11-18 17:24:18,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:18,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:18,691 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:18,691 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 17:24:18,695 INFO L794 eck$LassoCheckResult]: Stem: 110#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);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~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);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~string38.base, #t~string38.offset := #Ultimate.alloc(13);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 44];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 77];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 101];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 116];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 104];#memory_int := #memory_int[#t~string40.base,5 + #t~string40.offset := 58];#memory_int := #memory_int[#t~string40.base,6 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 67];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 82];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 73];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 84];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 75];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 41];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 49#L835true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 139#L828true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 68#L843true main_#t~ret72 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 122#L930true assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 25#L907true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 55#L557-3true [2018-11-18 17:24:18,695 INFO L796 eck$LassoCheckResult]: Loop: 55#L557-3true assume true; 51#L557-1true assume !false; 145#L558true assume test_~splverifierCounter~0 < 4; 97#L559true test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 101#L567true assume !(0 != test_~tmp~4); 104#L567-2true test_~tmp___0~1 := test_#t~nondet48;havoc test_#t~nondet48; 4#L577true assume !(0 != test_~tmp___0~1); 6#L577-2true test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 70#L587true assume 0 != test_~tmp___2~0; 47#L593-2true assume { :begin_inline_timeShift } true; 162#L624true assume !(0 != ~pumpRunning~0); 146#L624-2true assume !(0 != ~systemActive~0); 67#L631-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 79#L493-1true __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 22#L417true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 26#L417-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 124#L641true assume { :end_inline_timeShift } true; 55#L557-3true [2018-11-18 17:24:18,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:18,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 17:24:18,704 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:18,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:18,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:18,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:18,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:18,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:18,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1463031053, now seen corresponding path program 1 times [2018-11-18 17:24:18,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:18,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:18,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:18,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:18,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:18,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:18,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1900254639, now seen corresponding path program 1 times [2018-11-18 17:24:18,872 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:18,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:18,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:18,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:18,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:24:19,030 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 17:24:19,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:24:19,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:24:19,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:24:19,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:24:19,181 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 6 states. [2018-11-18 17:24:19,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:19,576 INFO L93 Difference]: Finished difference Result 377 states and 491 transitions. [2018-11-18 17:24:19,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:24:19,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 377 states and 491 transitions. [2018-11-18 17:24:19,585 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 245 [2018-11-18 17:24:19,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 377 states to 347 states and 461 transitions. [2018-11-18 17:24:19,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2018-11-18 17:24:19,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2018-11-18 17:24:19,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 461 transitions. [2018-11-18 17:24:19,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:19,596 INFO L705 BuchiCegarLoop]: Abstraction has 347 states and 461 transitions. [2018-11-18 17:24:19,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 461 transitions. [2018-11-18 17:24:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 203. [2018-11-18 17:24:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-11-18 17:24:19,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 269 transitions. [2018-11-18 17:24:19,632 INFO L728 BuchiCegarLoop]: Abstraction has 203 states and 269 transitions. [2018-11-18 17:24:19,632 INFO L608 BuchiCegarLoop]: Abstraction has 203 states and 269 transitions. [2018-11-18 17:24:19,632 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 17:24:19,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 203 states and 269 transitions. [2018-11-18 17:24:19,634 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2018-11-18 17:24:19,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:19,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:19,636 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:19,636 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] [2018-11-18 17:24:19,637 INFO L794 eck$LassoCheckResult]: Stem: 686#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);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~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);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~string38.base, #t~string38.offset := #Ultimate.alloc(13);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 44];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 77];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 101];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 116];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 104];#memory_int := #memory_int[#t~string40.base,5 + #t~string40.offset := 58];#memory_int := #memory_int[#t~string40.base,6 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 67];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 82];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 73];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 84];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 75];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 41];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 563#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 564#L835 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 625#L828 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 648#L843 main_#t~ret72 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 649#L930 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 593#L907 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 594#L557-3 [2018-11-18 17:24:19,637 INFO L796 eck$LassoCheckResult]: Loop: 594#L557-3 assume true; 627#L557-1 assume !false; 628#L558 assume test_~splverifierCounter~0 < 4; 677#L559 test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 678#L567 assume !(0 != test_~tmp~4); 674#L567-2 test_~tmp___0~1 := test_#t~nondet48;havoc test_#t~nondet48; 557#L577 assume !(0 != test_~tmp___0~1); 559#L577-2 test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 562#L587 assume 0 != test_~tmp___2~0; 614#L593-2 assume { :begin_inline_timeShift } true; 622#L624 assume !(0 != ~pumpRunning~0); 698#L624-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 699#L682 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 623#L656-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 620#L648-3 assume { :end_inline_processEnvironment__wrappee__base } true; 617#L656-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 626#L682-1 assume { :end_inline_processEnvironment } true; 646#L631-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 647#L493-1 __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 588#L417 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 589#L417-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 597#L641 assume { :end_inline_timeShift } true; 594#L557-3 [2018-11-18 17:24:19,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:19,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 17:24:19,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:19,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:19,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:19,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:19,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:19,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:19,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1401525536, now seen corresponding path program 1 times [2018-11-18 17:24:19,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:19,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:19,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:19,697 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:19,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:24:19,765 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 17:24:19,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:24:19,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:24:19,766 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:24:19,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:24:19,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:24:19,767 INFO L87 Difference]: Start difference. First operand 203 states and 269 transitions. cyclomatic complexity: 69 Second operand 3 states. [2018-11-18 17:24:19,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:19,936 INFO L93 Difference]: Finished difference Result 255 states and 322 transitions. [2018-11-18 17:24:19,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:24:19,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 322 transitions. [2018-11-18 17:24:19,940 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2018-11-18 17:24:19,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 255 states and 322 transitions. [2018-11-18 17:24:19,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2018-11-18 17:24:19,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2018-11-18 17:24:19,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 322 transitions. [2018-11-18 17:24:19,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:19,945 INFO L705 BuchiCegarLoop]: Abstraction has 255 states and 322 transitions. [2018-11-18 17:24:19,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 322 transitions. [2018-11-18 17:24:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2018-11-18 17:24:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-11-18 17:24:19,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 322 transitions. [2018-11-18 17:24:19,954 INFO L728 BuchiCegarLoop]: Abstraction has 255 states and 322 transitions. [2018-11-18 17:24:19,955 INFO L608 BuchiCegarLoop]: Abstraction has 255 states and 322 transitions. [2018-11-18 17:24:19,955 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 17:24:19,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 322 transitions. [2018-11-18 17:24:19,957 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2018-11-18 17:24:19,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:19,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:19,958 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:19,958 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] [2018-11-18 17:24:19,959 INFO L794 eck$LassoCheckResult]: Stem: 1160#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);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~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);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~string38.base, #t~string38.offset := #Ultimate.alloc(13);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 44];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 77];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 101];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 116];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 104];#memory_int := #memory_int[#t~string40.base,5 + #t~string40.offset := 58];#memory_int := #memory_int[#t~string40.base,6 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 67];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 82];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 73];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 84];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 75];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 41];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1027#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 1028#L835 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1091#L828 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1116#L843 main_#t~ret72 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 1117#L930 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 1056#L907 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1057#L557-3 [2018-11-18 17:24:19,959 INFO L796 eck$LassoCheckResult]: Loop: 1057#L557-3 assume true; 1093#L557-1 assume !false; 1094#L558 assume test_~splverifierCounter~0 < 4; 1149#L559 test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 1150#L567 assume !(0 != test_~tmp~4); 1142#L567-2 test_~tmp___0~1 := test_#t~nondet48;havoc test_#t~nondet48; 1021#L577 assume !(0 != test_~tmp___0~1); 1023#L577-2 test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 1026#L587 assume 0 != test_~tmp___2~0; 1081#L593-2 assume { :begin_inline_timeShift } true; 1088#L624 assume !(0 != ~pumpRunning~0); 1176#L624-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1177#L682 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1089#L656-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1090#L533-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1041#L538-1 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 1042#L784-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1166#L784-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1156#L790-1 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 1157#L660-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 1083#L648-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1084#L656-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1092#L682-1 assume { :end_inline_processEnvironment } true; 1114#L631-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1115#L493-1 __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 1051#L417 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 1052#L417-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1058#L641 assume { :end_inline_timeShift } true; 1057#L557-3 [2018-11-18 17:24:19,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:19,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 17:24:19,966 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:19,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:19,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:19,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:19,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:20,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:20,009 INFO L82 PathProgramCache]: Analyzing trace with hash -551477832, now seen corresponding path program 1 times [2018-11-18 17:24:20,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:20,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:20,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:20,010 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:20,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:20,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:20,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1802459780, now seen corresponding path program 1 times [2018-11-18 17:24:20,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:20,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:20,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:20,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:20,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:20,274 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2018-11-18 17:24:49,461 WARN L180 SmtUtils]: Spent 29.14 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 17:24:58,089 WARN L180 SmtUtils]: Spent 8.63 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 17:24:58,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 05:24:58 BoogieIcfgContainer [2018-11-18 17:24:58,153 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 17:24:58,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:24:58,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:24:58,153 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:24:58,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:24:18" (3/4) ... [2018-11-18 17:24:58,156 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 17:24:58,195 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a247bb5e-de35-4b21-9cad-2ecd2dc26c97/bin-2019/uautomizer/witness.graphml [2018-11-18 17:24:58,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:24:58,196 INFO L168 Benchmark]: Toolchain (without parser) took 40856.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 957.1 MB in the beginning and 806.6 MB in the end (delta: 150.5 MB). Peak memory consumption was 360.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,196 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:24:58,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.05 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,197 INFO L168 Benchmark]: Boogie Preprocessor took 29.17 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: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,197 INFO L168 Benchmark]: RCFGBuilder took 728.93 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,198 INFO L168 Benchmark]: BuchiAutomizer took 39542.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.0 GB in the beginning and 811.8 MB in the end (delta: 231.7 MB). Peak memory consumption was 299.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,198 INFO L168 Benchmark]: Witness Printer took 42.63 ms. Allocated memory is still 1.2 GB. Free memory was 811.8 MB in the beginning and 806.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,200 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 466.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.05 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.17 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: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 728.93 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39542.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.0 GB in the beginning and 811.8 MB in the end (delta: 231.7 MB). Peak memory consumption was 299.4 MB. Max. memory is 11.5 GB. * Witness Printer took 42.63 ms. Allocated memory is still 1.2 GB. Free memory was 811.8 MB in the beginning and 806.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 38.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 144 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 255 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 399 SDtfs, 925 SDslu, 998 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 557]: 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, "Pump(System:"=34, "On"=0, ")"=0, ")"=33, ",Meth:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77cc07b0=164, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cf85327=0, "OK"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2726f2c2=0, ",Pump:"=0, "On"=38, "Env(Water:%i"=27, "CRIT"=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5de8de1c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4270568e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21a0b9ff=0, tmp___0=0, retValue_acc=1, "Off"=0, tmp=0, "\n"=0, retValue_acc=0, ") "=0, tmp___1=0, "__utac__get_this_argtype"=22, "__utac__get_this_arg"=18, "__utac__get_this_arg"=8, tmp___0=0, "libacc.c"=20, cleanupTimeShifts=4, "libacc.c"=24, "CRIT"=29, tmp=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, NULL=0, systemActive=1, waterLevel=1, "\n"=42, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "Env(Water:%i"=0, retValue_acc=0, \result=0, "OK"=31, "Pump(System:"=0, "On"=0, retValue_acc=0, \result=1, "i > 0 && i <= this->argsCount"=14, head=0, pumpRunning=0, "On"=35, \result=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=11, "libacc.c"=0, tmp=0, tmp=1, "i > 0 && i <= this->argsCount"=0, \result=1, ") "=40, ",Pump:"=37, "libacc.c"=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4320f036=0, tmp=1, tmp___2=164, "i > 0 && i <= this->argsCount"=23, tmp___0=0, splverifierCounter=0, "Off"=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43031e97=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79b46866=0, "Off"=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@525d8ef7=0, head=0, "libacc.c"=0, "libacc.c"=12, tmp=0, "i > 0 && i <= this->argsCount"=19, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=26, "libacc.c"=0, "libacc.c"=0, ",Meth:"=28, "Off"=39} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 557]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L337] FCALL "i > 0 && i <= this->argsCount" [L337] FCALL "libacc.c" [L338] FCALL "__utac__get_this_arg" [L344] FCALL "i > 0 && i <= this->argsCount" [L344] FCALL "libacc.c" [L345] FCALL "__utac__get_this_arg" [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_argtype" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_argtype" [L502] FCALL "Env(Water:%i" [L503] FCALL ",Meth:" [L507] FCALL "CRIT" [L511] FCALL "OK" [L515] FCALL ")" [L744] FCALL "Pump(System:" [L748] FCALL "On" [L752] FCALL "Off" [L756] FCALL ",Pump:" [L760] FCALL "On" [L764] FCALL "Off" [L768] FCALL ") " [L770] FCALL "\n" [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L617] int pumpRunning = 0; [L618] int systemActive = 1; [L848] int cleanupTimeShifts = 4; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L921] int retValue_acc ; [L922] int tmp ; [L926] FCALL select_helpers() [L927] FCALL select_features() [L928] CALL, EXPR valid_product() [L839] int retValue_acc ; [L842] retValue_acc = 1 [L843] RET return (retValue_acc); [L928] EXPR valid_product() [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) [L932] FCALL setup() [L933] CALL runTest() [L915] CALL test() [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 Loop: [L557] COND TRUE 1 [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND FALSE !(\read(tmp)) [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) [L602] CALL timeShift() [L624] COND FALSE !(\read(pumpRunning)) [L631] COND TRUE \read(systemActive) [L633] CALL processEnvironment() [L679] int tmp ; [L682] COND FALSE !(\read(pumpRunning)) [L697] CALL processEnvironment__wrappee__highWaterSensor() [L653] int tmp ; [L656] COND TRUE ! pumpRunning [L658] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L530] int retValue_acc ; [L533] COND TRUE waterLevel < 2 [L534] retValue_acc = 1 [L535] RET return (retValue_acc); [L782] EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] RET return (retValue_acc); [L658] EXPR isHighWaterLevel() [L658] tmp = isHighWaterLevel() [L660] COND FALSE !(\read(tmp)) [L666] RET, FCALL processEnvironment__wrappee__base() [L697] RET processEnvironment__wrappee__highWaterSensor() [L633] processEnvironment() [L639] CALL __utac_acc__Specification1_spec__1() [L410] int tmp ; [L411] int tmp___0 ; [L415] CALL, EXPR isMethaneLevelCritical() [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] RET return (retValue_acc); [L415] EXPR isMethaneLevelCritical() [L415] tmp = isMethaneLevelCritical() [L417] COND FALSE, RET !(\read(tmp)) [L639] RET __utac_acc__Specification1_spec__1() [L602] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...