./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product46_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_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product46_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/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 cfed73d0949579dcb398cd2d92995791596ce6cd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:15:54,732 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:15:54,733 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:15:54,742 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:15:54,742 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:15:54,743 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:15:54,744 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:15:54,745 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:15:54,747 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:15:54,747 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:15:54,748 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:15:54,748 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:15:54,749 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:15:54,750 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:15:54,751 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:15:54,752 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:15:54,752 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:15:54,754 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:15:54,756 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:15:54,757 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:15:54,758 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:15:54,759 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:15:54,761 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:15:54,761 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:15:54,761 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:15:54,763 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:15:54,763 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:15:54,764 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:15:54,765 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:15:54,766 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:15:54,766 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:15:54,767 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:15:54,767 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:15:54,767 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:15:54,768 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:15:54,769 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:15:54,769 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 13:15:54,781 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:15:54,782 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:15:54,783 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:15:54,783 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:15:54,783 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:15:54,783 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 13:15:54,783 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 13:15:54,784 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 13:15:54,784 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 13:15:54,784 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 13:15:54,784 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 13:15:54,784 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:15:54,784 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:15:54,785 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:15:54,785 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:15:54,785 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:15:54,785 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:15:54,785 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 13:15:54,785 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 13:15:54,785 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 13:15:54,786 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:15:54,787 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:15:54,788 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 13:15:54,788 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:15:54,788 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 13:15:54,788 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:15:54,788 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:15:54,788 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 13:15:54,789 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:15:54,789 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 13:15:54,789 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 13:15:54,791 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 13:15:54,791 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_f19c5b48-47d5-437c-a110-86b95d77b7e2/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 -> cfed73d0949579dcb398cd2d92995791596ce6cd [2018-11-18 13:15:54,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:15:54,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:15:54,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:15:54,829 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:15:54,829 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:15:54,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product46_true-unreach-call_false-termination.cil.c [2018-11-18 13:15:54,878 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/data/785056dea/33de3fb7f5f945148280ebde68638f38/FLAG2063818a3 [2018-11-18 13:15:55,275 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:15:55,276 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/sv-benchmarks/c/product-lines/minepump_spec3_product46_true-unreach-call_false-termination.cil.c [2018-11-18 13:15:55,285 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/data/785056dea/33de3fb7f5f945148280ebde68638f38/FLAG2063818a3 [2018-11-18 13:15:55,298 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/data/785056dea/33de3fb7f5f945148280ebde68638f38 [2018-11-18 13:15:55,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:15:55,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:15:55,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:15:55,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:15:55,306 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:15:55,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bea0e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55, skipping insertion in model container [2018-11-18 13:15:55,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:15:55,356 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:15:55,583 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:15:55,592 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:15:55,736 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:15:55,760 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:15:55,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55 WrapperNode [2018-11-18 13:15:55,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:15:55,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:15:55,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:15:55,761 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:15:55,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:15:55,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:15:55,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:15:55,816 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:15:55,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... [2018-11-18 13:15:55,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:15:55,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:15:55,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:15:55,853 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:15:55,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/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 13:15:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:15:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:15:55,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:15:56,832 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:15:56,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:15:56 BoogieIcfgContainer [2018-11-18 13:15:56,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:15:56,833 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 13:15:56,833 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 13:15:56,836 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 13:15:56,837 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:15:56,837 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 01:15:55" (1/3) ... [2018-11-18 13:15:56,838 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34a91e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:15:56, skipping insertion in model container [2018-11-18 13:15:56,838 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:15:56,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:55" (2/3) ... [2018-11-18 13:15:56,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34a91e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:15:56, skipping insertion in model container [2018-11-18 13:15:56,839 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:15:56,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:15:56" (3/3) ... [2018-11-18 13:15:56,840 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product46_true-unreach-call_false-termination.cil.c [2018-11-18 13:15:56,884 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:15:56,885 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 13:15:56,885 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 13:15:56,885 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 13:15:56,886 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:15:56,886 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:15:56,886 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 13:15:56,886 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:15:56,886 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 13:15:56,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2018-11-18 13:15:56,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2018-11-18 13:15:56,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:15:56,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:15:56,931 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:15:56,932 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 13:15:56,932 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 13:15:56,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2018-11-18 13:15:56,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2018-11-18 13:15:56,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:15:56,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:15:56,940 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:15:56,940 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 13:15:56,944 INFO L794 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.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];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret39, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 22#L103true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 166#L96true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 45#L111true main_#t~ret39 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret39;havoc main_#t~ret39; 176#L569true assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 126#L545true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 11#L896-3true [2018-11-18 13:15:56,944 INFO L796 eck$LassoCheckResult]: Loop: 11#L896-3true assume true; 27#L896-1true assume !false; 155#L897true assume test_~splverifierCounter~0 < 4; 68#L898true test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 101#L906true assume !(0 != test_~tmp~9); 79#L906-2true test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 163#L916true assume !(0 != test_~tmp___0~2); 170#L916-2true test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 31#L926true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 35#L882true assume { :end_inline_startSystem } true; 46#L934-2true assume { :begin_inline_timeShift } true; 187#L690true assume !(0 != ~pumpRunning~0); 190#L690-2true assume !(0 != ~systemActive~0); 66#L697-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 12#L629-3true __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 77#L53true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 17#L59-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 150#L707true assume { :end_inline_timeShift } true; 11#L896-3true [2018-11-18 13:15:56,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:56,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 13:15:56,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:56,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:56,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:56,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:15:56,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:57,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:57,136 INFO L82 PathProgramCache]: Analyzing trace with hash 288508613, now seen corresponding path program 1 times [2018-11-18 13:15:57,136 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:57,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:57,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:15:57,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:15:57,182 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 13:15:57,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:15:57,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:15:57,187 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 13:15:57,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:15:57,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:15:57,206 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 3 states. [2018-11-18 13:15:57,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:15:57,270 INFO L93 Difference]: Finished difference Result 186 states and 242 transitions. [2018-11-18 13:15:57,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:15:57,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 242 transitions. [2018-11-18 13:15:57,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2018-11-18 13:15:57,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 176 states and 231 transitions. [2018-11-18 13:15:57,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 176 [2018-11-18 13:15:57,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 176 [2018-11-18 13:15:57,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 176 states and 231 transitions. [2018-11-18 13:15:57,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 13:15:57,283 INFO L705 BuchiCegarLoop]: Abstraction has 176 states and 231 transitions. [2018-11-18 13:15:57,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states and 231 transitions. [2018-11-18 13:15:57,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-11-18 13:15:57,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-18 13:15:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 231 transitions. [2018-11-18 13:15:57,315 INFO L728 BuchiCegarLoop]: Abstraction has 176 states and 231 transitions. [2018-11-18 13:15:57,315 INFO L608 BuchiCegarLoop]: Abstraction has 176 states and 231 transitions. [2018-11-18 13:15:57,315 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 13:15:57,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 176 states and 231 transitions. [2018-11-18 13:15:57,317 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2018-11-18 13:15:57,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:15:57,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:15:57,318 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:15:57,318 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 13:15:57,319 INFO L794 eck$LassoCheckResult]: Stem: 545#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.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];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 396#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret39, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 397#L103 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 421#L96 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 456#L111 main_#t~ret39 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret39;havoc main_#t~ret39; 457#L569 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 543#L545 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 400#L896-3 [2018-11-18 13:15:57,319 INFO L796 eck$LassoCheckResult]: Loop: 400#L896-3 assume true; 401#L896-1 assume !false; 429#L897 assume test_~splverifierCounter~0 < 4; 487#L898 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 488#L906 assume !(0 != test_~tmp~9); 455#L906-2 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 503#L916 assume !(0 != test_~tmp___0~2); 555#L916-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 433#L926 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 434#L882 assume { :end_inline_startSystem } true; 442#L934-2 assume { :begin_inline_timeShift } true; 458#L690 assume !(0 != ~pumpRunning~0); 520#L690-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 559#L748 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 475#L722-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 443#L714-3 assume { :end_inline_processEnvironment__wrappee__base } true; 437#L722-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 474#L748-1 assume { :end_inline_processEnvironment } true; 483#L697-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 402#L629-3 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 403#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 412#L59-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 413#L707 assume { :end_inline_timeShift } true; 400#L896-3 [2018-11-18 13:15:57,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:57,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 13:15:57,319 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:57,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:57,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:15:57,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:57,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:57,380 INFO L82 PathProgramCache]: Analyzing trace with hash -2052367691, now seen corresponding path program 1 times [2018-11-18 13:15:57,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:57,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:57,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,381 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:15:57,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:15:57,435 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 13:15:57,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:15:57,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:15:57,436 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 13:15:57,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:15:57,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:15:57,436 INFO L87 Difference]: Start difference. First operand 176 states and 231 transitions. cyclomatic complexity: 57 Second operand 3 states. [2018-11-18 13:15:57,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:15:57,568 INFO L93 Difference]: Finished difference Result 246 states and 311 transitions. [2018-11-18 13:15:57,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:15:57,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 311 transitions. [2018-11-18 13:15:57,571 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2018-11-18 13:15:57,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 246 states and 311 transitions. [2018-11-18 13:15:57,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 246 [2018-11-18 13:15:57,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 246 [2018-11-18 13:15:57,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 246 states and 311 transitions. [2018-11-18 13:15:57,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 13:15:57,575 INFO L705 BuchiCegarLoop]: Abstraction has 246 states and 311 transitions. [2018-11-18 13:15:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states and 311 transitions. [2018-11-18 13:15:57,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2018-11-18 13:15:57,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-11-18 13:15:57,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 311 transitions. [2018-11-18 13:15:57,584 INFO L728 BuchiCegarLoop]: Abstraction has 246 states and 311 transitions. [2018-11-18 13:15:57,584 INFO L608 BuchiCegarLoop]: Abstraction has 246 states and 311 transitions. [2018-11-18 13:15:57,584 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 13:15:57,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 311 transitions. [2018-11-18 13:15:57,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2018-11-18 13:15:57,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:15:57,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:15:57,590 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:15:57,590 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 13:15:57,590 INFO L794 eck$LassoCheckResult]: Stem: 975#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.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];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 822#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret39, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 823#L103 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 848#L96 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 883#L111 main_#t~ret39 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret39;havoc main_#t~ret39; 884#L569 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 971#L545 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 828#L896-3 [2018-11-18 13:15:57,590 INFO L796 eck$LassoCheckResult]: Loop: 828#L896-3 assume true; 829#L896-1 assume !false; 856#L897 assume test_~splverifierCounter~0 < 4; 913#L898 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 914#L906 assume !(0 != test_~tmp~9); 880#L906-2 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 927#L916 assume !(0 != test_~tmp___0~2); 989#L916-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 860#L926 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 861#L882 assume { :end_inline_startSystem } true; 869#L934-2 assume { :begin_inline_timeShift } true; 885#L690 assume !(0 != ~pumpRunning~0); 997#L690-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 994#L748 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 903#L722-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 904#L669-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 961#L674-1 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 974#L867-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 957#L867-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 928#L873-1 processEnvironment__wrappee__methaneQuery_#t~ret50 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret50;havoc processEnvironment__wrappee__methaneQuery_#t~ret50; 929#L726-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 863#L714-2 assume { :end_inline_processEnvironment__wrappee__base } true; 864#L722-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 902#L748-1 assume { :end_inline_processEnvironment } true; 911#L697-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 830#L629-3 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 831#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 840#L59-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 841#L707 assume { :end_inline_timeShift } true; 828#L896-3 [2018-11-18 13:15:57,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:57,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 13:15:57,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:57,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:57,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:15:57,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:57,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:57,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1367906093, now seen corresponding path program 1 times [2018-11-18 13:15:57,678 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:57,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:57,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,679 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:15:57,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:57,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:57,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1242171369, now seen corresponding path program 1 times [2018-11-18 13:15:57,705 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:57,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:57,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:15:57,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:15:58,001 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 13:15:58,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:15:58,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 13:15:58,534 WARN L180 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-11-18 13:15:58,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:15:58,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:15:58,630 INFO L87 Difference]: Start difference. First operand 246 states and 311 transitions. cyclomatic complexity: 67 Second operand 5 states. [2018-11-18 13:15:59,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:15:59,077 INFO L93 Difference]: Finished difference Result 849 states and 1069 transitions. [2018-11-18 13:15:59,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:15:59,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 849 states and 1069 transitions. [2018-11-18 13:15:59,082 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 616 [2018-11-18 13:15:59,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 849 states to 849 states and 1069 transitions. [2018-11-18 13:15:59,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 849 [2018-11-18 13:15:59,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 849 [2018-11-18 13:15:59,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 849 states and 1069 transitions. [2018-11-18 13:15:59,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 13:15:59,092 INFO L705 BuchiCegarLoop]: Abstraction has 849 states and 1069 transitions. [2018-11-18 13:15:59,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states and 1069 transitions. [2018-11-18 13:15:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 485. [2018-11-18 13:15:59,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2018-11-18 13:15:59,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 607 transitions. [2018-11-18 13:15:59,113 INFO L728 BuchiCegarLoop]: Abstraction has 485 states and 607 transitions. [2018-11-18 13:15:59,113 INFO L608 BuchiCegarLoop]: Abstraction has 485 states and 607 transitions. [2018-11-18 13:15:59,113 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 13:15:59,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 485 states and 607 transitions. [2018-11-18 13:15:59,116 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 344 [2018-11-18 13:15:59,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:15:59,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:15:59,117 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:15:59,117 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:15:59,117 INFO L794 eck$LassoCheckResult]: Stem: 2104#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.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];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1935#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret39, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 1936#L103 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1961#L96 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1997#L111 main_#t~ret39 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret39;havoc main_#t~ret39; 1998#L569 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 2098#L545 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2099#L896-3 [2018-11-18 13:15:59,117 INFO L796 eck$LassoCheckResult]: Loop: 2099#L896-3 assume true; 2279#L896-1 assume !false; 2278#L897 assume test_~splverifierCounter~0 < 4; 2030#L898 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 2031#L906 assume !(0 != test_~tmp~9); 1994#L906-2 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 2049#L916 assume !(0 != test_~tmp___0~2); 2127#L916-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 1973#L926 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1974#L882 assume { :end_inline_startSystem } true; 1982#L934-2 assume { :begin_inline_timeShift } true; 1999#L690 assume !(0 != ~pumpRunning~0); 2376#L690-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2373#L748 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 2286#L722-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2372#L669-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2371#L674-1 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 2204#L867-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2200#L867-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 2199#L873-1 processEnvironment__wrappee__methaneQuery_#t~ret50 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret50;havoc processEnvironment__wrappee__methaneQuery_#t~ret50; 2191#L726-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 1976#L714-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1977#L722-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2017#L748-1 assume { :end_inline_processEnvironment } true; 2139#L697-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1943#L629-3 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 1944#L53 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 2047#L661 __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 2080#L59 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2281#L59-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2280#L707 assume { :end_inline_timeShift } true; 2099#L896-3 [2018-11-18 13:15:59,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:59,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 13:15:59,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:59,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:59,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:59,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:15:59,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:59,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:59,155 INFO L82 PathProgramCache]: Analyzing trace with hash 299016928, now seen corresponding path program 1 times [2018-11-18 13:15:59,155 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:59,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:59,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:59,156 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:15:59,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:59,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:59,168 INFO L82 PathProgramCache]: Analyzing trace with hash -272968548, now seen corresponding path program 1 times [2018-11-18 13:15:59,168 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:15:59,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:15:59,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:59,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:15:59,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:15:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:15:59,337 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2018-11-18 13:16:47,014 WARN L180 SmtUtils]: Spent 47.59 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 13:17:19,581 WARN L180 SmtUtils]: Spent 32.57 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 13:17:19,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 01:17:19 BoogieIcfgContainer [2018-11-18 13:17:19,655 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 13:17:19,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:17:19,655 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:17:19,656 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:17:19,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:15:56" (3/4) ... [2018-11-18 13:17:19,658 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 13:17:19,703 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f19c5b48-47d5-437c-a110-86b95d77b7e2/bin-2019/uautomizer/witness.graphml [2018-11-18 13:17:19,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:17:19,703 INFO L168 Benchmark]: Toolchain (without parser) took 84402.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 958.0 MB in the beginning and 855.8 MB in the end (delta: 102.3 MB). Peak memory consumption was 246.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:19,704 INFO L168 Benchmark]: CDTParser took 0.50 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 13:17:19,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). Peak memory consumption was 36.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:19,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:19,705 INFO L168 Benchmark]: Boogie Preprocessor took 36.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:19,705 INFO L168 Benchmark]: RCFGBuilder took 980.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:19,705 INFO L168 Benchmark]: BuchiAutomizer took 82821.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 30.9 MB). Free memory was 1.0 GB in the beginning and 855.8 MB in the end (delta: 168.2 MB). Peak memory consumption was 206.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:19,705 INFO L168 Benchmark]: Witness Printer took 47.65 ms. Allocated memory is still 1.2 GB. Free memory is still 855.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:17:19,707 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 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 457.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). Peak memory consumption was 36.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 980.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 82821.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 30.9 MB). Free memory was 1.0 GB in the beginning and 855.8 MB in the end (delta: 168.2 MB). Peak memory consumption was 206.8 MB. Max. memory is 11.5 GB. * Witness Printer took 47.65 ms. Allocated memory is still 1.2 GB. Free memory is still 855.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 485 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 82.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 81.9s. Construction of modules took 0.4s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 364 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 485 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 783 SDtfs, 1276 SDslu, 1142 SDs, 0 SdLazy, 170 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 896]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a5d943c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51e1d4f5=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35ff05e8=0, "OK"=0, "Pump(System:"=8, "On"=0, "Env(Water:%i"=0, "CRIT"=0, retValue_acc=0, ",Pump:"=0, "On"=36, ",Meth:"=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cb933ca=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a801a82=0, "Off"=0, "\n"=0, "Env(Water:%i"=17, "__utac__get_this_argtype"=22, ") "=0, tmp___1=0, tmp=0, "libacc.c"=31, tmp___0=1, "__utac__get_this_argtype"=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76665780=0, tmp=0, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=20, "i > 0 && i <= this->argsCount"=28, "i > 0 && i <= this->argsCount"=24, "CRIT"=15, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_arg"=0, NULL=0, systemActive=1, waterLevel=1, "\n"=40, \result=1, "libacc.c"=0, retValue_acc=0, ")"=0, \result=0, "OK"=14, "Pump(System:"=0, "On"=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, ")"=12, "On"=11, \result=0, tmp=1, "__utac__get_this_argtype"=0, "libacc.c"=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=19, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b16555a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6619e977=183, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78021700=0, ") "=39, ",Pump:"=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@258adbc1=0, "i > 0 && i <= this->argsCount"=33, retValue_acc=0, retValue_acc=1, tmp=1, retValue_acc=1, tmp___2=183, tmp___0=0, "libacc.c"=27, splverifierCounter=0, "Off"=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2053006e=0, "Off"=38, tmp___1=0, head=0, "libacc.c"=0, "__utac__get_this_arg"=29, "__utac__get_this_arg"=0, tmp=0, "__utac__get_this_arg"=26, "libacc.c"=23, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, ",Meth:"=16, "Off"=35, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 896]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L413] FCALL "i > 0 && i <= this->argsCount" [L413] FCALL "libacc.c" [L414] FCALL "__utac__get_this_arg" [L420] FCALL "i > 0 && i <= this->argsCount" [L420] FCALL "libacc.c" [L421] FCALL "__utac__get_this_arg" [L459] FCALL "i > 0 && i <= this->argsCount" [L459] FCALL "libacc.c" [L460] FCALL "__utac__get_this_argtype" [L466] FCALL "i > 0 && i <= this->argsCount" [L466] FCALL "libacc.c" [L467] FCALL "__utac__get_this_argtype" [L638] FCALL "Env(Water:%i" [L639] FCALL ",Meth:" [L643] FCALL "CRIT" [L647] FCALL "OK" [L651] FCALL ")" [L827] FCALL "Pump(System:" [L831] FCALL "On" [L835] FCALL "Off" [L839] FCALL ",Pump:" [L843] FCALL "On" [L847] FCALL "Off" [L851] FCALL ") " [L853] FCALL "\n" [L482] int cleanupTimeShifts = 4; [L586] int waterLevel = 1; [L587] int methaneLevelCritical = 0; [L683] int pumpRunning = 0; [L684] int systemActive = 1; [L285] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L560] int retValue_acc ; [L561] int tmp ; [L565] FCALL select_helpers() [L566] FCALL select_features() [L567] CALL, EXPR valid_product() [L107] int retValue_acc ; [L110] retValue_acc = 1 [L111] RET return (retValue_acc); [L567] EXPR valid_product() [L567] tmp = valid_product() [L569] COND TRUE \read(tmp) [L571] FCALL setup() [L572] CALL runTest() [L554] CALL test() [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 Loop: [L896] COND TRUE 1 [L898] COND TRUE splverifierCounter < 4 [L904] tmp = __VERIFIER_nondet_int() [L906] COND FALSE !(\read(tmp)) [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND TRUE \read(tmp___2) [L928] CALL startSystem() [L881] RET systemActive = 1 [L928] startSystem() [L941] CALL timeShift() [L690] COND FALSE !(\read(pumpRunning)) [L697] COND TRUE \read(systemActive) [L699] CALL processEnvironment() [L745] int tmp ; [L748] COND FALSE !(\read(pumpRunning)) [L763] CALL processEnvironment__wrappee__methaneQuery() [L719] int tmp ; [L722] COND TRUE ! pumpRunning [L724] CALL, EXPR isHighWaterLevel() [L859] int retValue_acc ; [L860] int tmp ; [L861] int tmp___0 ; [L865] CALL, EXPR isHighWaterSensorDry() [L666] int retValue_acc ; [L669] COND TRUE waterLevel < 2 [L670] retValue_acc = 1 [L671] RET return (retValue_acc); [L865] EXPR isHighWaterSensorDry() [L865] tmp = isHighWaterSensorDry() [L867] COND TRUE \read(tmp) [L868] tmp___0 = 0 [L872] retValue_acc = tmp___0 [L873] RET return (retValue_acc); [L724] EXPR isHighWaterLevel() [L724] tmp = isHighWaterLevel() [L726] COND FALSE !(\read(tmp)) [L732] RET, FCALL processEnvironment__wrappee__base() [L763] RET processEnvironment__wrappee__methaneQuery() [L699] processEnvironment() [L705] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L625] int retValue_acc ; [L628] retValue_acc = methaneLevelCritical [L629] RET return (retValue_acc); [L51] EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L657] int retValue_acc ; [L660] retValue_acc = waterLevel [L661] RET return (retValue_acc); [L57] EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND FALSE, RET !(tmp___0 == 2) [L705] RET __utac_acc__Specification3_spec__1() [L941] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...