./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product43_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/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 6b50f176f9cc083683ce70010cc4357ff865e696 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:41:39,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:41:39,345 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:41:39,352 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:41:39,352 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:41:39,352 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:41:39,353 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:41:39,354 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:41:39,355 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:41:39,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:41:39,356 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:41:39,357 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:41:39,357 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:41:39,358 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:41:39,359 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:41:39,359 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:41:39,360 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:41:39,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:41:39,362 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:41:39,363 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:41:39,364 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:41:39,365 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:41:39,366 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:41:39,366 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:41:39,366 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:41:39,367 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:41:39,367 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:41:39,368 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:41:39,368 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:41:39,369 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:41:39,369 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:41:39,370 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:41:39,370 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:41:39,370 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:41:39,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:41:39,371 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:41:39,371 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 10:41:39,382 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:41:39,382 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:41:39,383 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:41:39,383 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:41:39,383 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:41:39,383 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 10:41:39,383 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 10:41:39,384 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 10:41:39,384 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 10:41:39,384 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 10:41:39,384 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 10:41:39,384 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:41:39,384 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:41:39,384 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:41:39,385 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:41:39,385 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:41:39,385 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:41:39,385 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 10:41:39,385 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 10:41:39,385 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 10:41:39,385 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:41:39,385 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:41:39,386 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 10:41:39,386 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:41:39,386 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 10:41:39,386 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:41:39,386 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:41:39,386 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 10:41:39,386 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:41:39,386 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:41:39,387 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 10:41:39,387 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 10:41:39,387 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_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/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 -> 6b50f176f9cc083683ce70010cc4357ff865e696 [2018-11-18 10:41:39,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:41:39,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:41:39,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:41:39,421 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:41:39,421 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:41:39,422 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product43_false-unreach-call_false-termination.cil.c [2018-11-18 10:41:39,457 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/data/094f9d6e5/8d9f477914ea4a1ba7b5b3347edc8f45/FLAGc0c6d0e59 [2018-11-18 10:41:39,883 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:41:39,883 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/sv-benchmarks/c/product-lines/minepump_spec3_product43_false-unreach-call_false-termination.cil.c [2018-11-18 10:41:39,889 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/data/094f9d6e5/8d9f477914ea4a1ba7b5b3347edc8f45/FLAGc0c6d0e59 [2018-11-18 10:41:39,897 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/data/094f9d6e5/8d9f477914ea4a1ba7b5b3347edc8f45 [2018-11-18 10:41:39,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:41:39,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:41:39,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:41:39,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:41:39,904 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:41:39,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:41:39" (1/1) ... [2018-11-18 10:41:39,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae989df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:39, skipping insertion in model container [2018-11-18 10:41:39,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:41:39" (1/1) ... [2018-11-18 10:41:39,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:41:39,943 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:41:40,124 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:41:40,133 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:41:40,233 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:41:40,255 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:41:40,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40 WrapperNode [2018-11-18 10:41:40,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:41:40,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:41:40,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:41:40,256 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:41:40,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... [2018-11-18 10:41:40,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... [2018-11-18 10:41:40,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:41:40,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:41:40,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:41:40,302 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:41:40,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... [2018-11-18 10:41:40,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... [2018-11-18 10:41:40,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... [2018-11-18 10:41:40,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... [2018-11-18 10:41:40,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... [2018-11-18 10:41:40,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... [2018-11-18 10:41:40,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... [2018-11-18 10:41:40,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:41:40,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:41:40,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:41:40,330 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:41:40,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/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 10:41:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:41:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:41:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:41:40,831 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:41:40,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:41:40 BoogieIcfgContainer [2018-11-18 10:41:40,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:41:40,831 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 10:41:40,831 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 10:41:40,833 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 10:41:40,834 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:41:40,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 10:41:39" (1/3) ... [2018-11-18 10:41:40,835 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6411bc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:41:40, skipping insertion in model container [2018-11-18 10:41:40,835 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:41:40,835 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:41:40" (2/3) ... [2018-11-18 10:41:40,835 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6411bc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:41:40, skipping insertion in model container [2018-11-18 10:41:40,835 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:41:40,835 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:41:40" (3/3) ... [2018-11-18 10:41:40,837 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product43_false-unreach-call_false-termination.cil.c [2018-11-18 10:41:40,878 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:41:40,879 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 10:41:40,879 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 10:41:40,879 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 10:41:40,879 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:41:40,879 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:41:40,879 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 10:41:40,880 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:41:40,880 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 10:41:40,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states. [2018-11-18 10:41:40,909 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 84 [2018-11-18 10:41:40,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:41:40,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:41:40,914 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:41:40,914 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:41:40,914 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 10:41:40,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states. [2018-11-18 10:41:40,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 84 [2018-11-18 10:41:40,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:41:40,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:41:40,918 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:41:40,918 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:41:40,923 INFO L794 eck$LassoCheckResult]: Stem: 98#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~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 17#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 90#L578true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 42#L571true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 109#L586true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 64#L130true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 29#L103true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 119#L792-3true [2018-11-18 10:41:40,923 INFO L796 eck$LassoCheckResult]: Loop: 119#L792-3true assume true; 116#L792-1true assume !false; 68#L793true assume test_~splverifierCounter~0 < 4; 43#L794true test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 46#L802true assume !(0 != test_~tmp~8); 47#L802-2true test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 93#L812true assume !(0 != test_~tmp___0~2); 97#L812-2true test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 13#L822true assume 0 != test_~tmp___2~0; 112#L828-2true assume { :begin_inline_timeShift } true; 41#L604true assume !(0 != ~pumpRunning~0); 44#L604-2true assume !(0 != ~systemActive~0); 92#L611-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 82#L892-1true __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 87#L165true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 75#L171-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 9#L621true assume { :end_inline_timeShift } true; 119#L792-3true [2018-11-18 10:41:40,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:40,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 10:41:40,930 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:40,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:40,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:40,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:41:40,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:41,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1530250949, now seen corresponding path program 1 times [2018-11-18 10:41:41,084 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:41,084 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:41,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:41:41,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:41,096 INFO L82 PathProgramCache]: Analyzing trace with hash 598569345, now seen corresponding path program 1 times [2018-11-18 10:41:41,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:41,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:41,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:41:41,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:41:41,217 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 10:41:41,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:41:41,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:41:41,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:41:41,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:41:41,303 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 6 states. [2018-11-18 10:41:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:41:41,482 INFO L93 Difference]: Finished difference Result 317 states and 410 transitions. [2018-11-18 10:41:41,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:41:41,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 410 transitions. [2018-11-18 10:41:41,489 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 205 [2018-11-18 10:41:41,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 287 states and 380 transitions. [2018-11-18 10:41:41,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 287 [2018-11-18 10:41:41,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 287 [2018-11-18 10:41:41,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 287 states and 380 transitions. [2018-11-18 10:41:41,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:41:41,499 INFO L705 BuchiCegarLoop]: Abstraction has 287 states and 380 transitions. [2018-11-18 10:41:41,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states and 380 transitions. [2018-11-18 10:41:41,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 176. [2018-11-18 10:41:41,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-18 10:41:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 233 transitions. [2018-11-18 10:41:41,532 INFO L728 BuchiCegarLoop]: Abstraction has 176 states and 233 transitions. [2018-11-18 10:41:41,532 INFO L608 BuchiCegarLoop]: Abstraction has 176 states and 233 transitions. [2018-11-18 10:41:41,532 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 10:41:41,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 176 states and 233 transitions. [2018-11-18 10:41:41,534 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2018-11-18 10:41:41,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:41:41,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:41:41,535 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:41:41,535 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] [2018-11-18 10:41:41,535 INFO L794 eck$LassoCheckResult]: Stem: 565#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~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 491#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 492#L578 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 526#L571 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 527#L586 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 547#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 513#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 477#L792-3 [2018-11-18 10:41:41,535 INFO L796 eck$LassoCheckResult]: Loop: 477#L792-3 assume true; 576#L792-1 assume !false; 550#L793 assume test_~splverifierCounter~0 < 4; 528#L794 test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 529#L802 assume !(0 != test_~tmp~8); 534#L802-2 test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 535#L812 assume !(0 != test_~tmp___0~2); 532#L812-2 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 484#L822 assume 0 != test_~tmp___2~0; 485#L828-2 assume { :begin_inline_timeShift } true; 525#L604 assume !(0 != ~pumpRunning~0); 488#L604-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 530#L636 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 545#L628-1 assume { :end_inline_processEnvironment__wrappee__base } true; 521#L636-1 assume { :end_inline_processEnvironment } true; 559#L611-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 560#L892-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 561#L165 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 467#L171-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 476#L621 assume { :end_inline_timeShift } true; 477#L792-3 [2018-11-18 10:41:41,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:41,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 10:41:41,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:41,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:41,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:41:41,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:41,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1381588558, now seen corresponding path program 1 times [2018-11-18 10:41:41,580 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:41,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:41,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,581 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:41:41,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:41:41,589 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 10:41:41,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:41:41,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:41:41,590 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 10:41:41,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:41:41,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:41:41,591 INFO L87 Difference]: Start difference. First operand 176 states and 233 transitions. cyclomatic complexity: 60 Second operand 3 states. [2018-11-18 10:41:41,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:41:41,671 INFO L93 Difference]: Finished difference Result 234 states and 298 transitions. [2018-11-18 10:41:41,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:41:41,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 234 states and 298 transitions. [2018-11-18 10:41:41,674 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 171 [2018-11-18 10:41:41,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 234 states to 234 states and 298 transitions. [2018-11-18 10:41:41,676 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234 [2018-11-18 10:41:41,676 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 234 [2018-11-18 10:41:41,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 234 states and 298 transitions. [2018-11-18 10:41:41,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:41:41,679 INFO L705 BuchiCegarLoop]: Abstraction has 234 states and 298 transitions. [2018-11-18 10:41:41,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states and 298 transitions. [2018-11-18 10:41:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2018-11-18 10:41:41,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-11-18 10:41:41,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 298 transitions. [2018-11-18 10:41:41,690 INFO L728 BuchiCegarLoop]: Abstraction has 234 states and 298 transitions. [2018-11-18 10:41:41,690 INFO L608 BuchiCegarLoop]: Abstraction has 234 states and 298 transitions. [2018-11-18 10:41:41,690 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 10:41:41,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 298 transitions. [2018-11-18 10:41:41,692 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 171 [2018-11-18 10:41:41,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:41:41,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:41:41,693 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:41:41,693 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] [2018-11-18 10:41:41,693 INFO L794 eck$LassoCheckResult]: Stem: 991#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~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 907#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 908#L578 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 945#L571 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 946#L586 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 968#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 929#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 930#L792-3 [2018-11-18 10:41:41,693 INFO L796 eck$LassoCheckResult]: Loop: 930#L792-3 assume true; 1070#L792-1 assume !false; 973#L793 assume test_~splverifierCounter~0 < 4; 947#L794 test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 948#L802 assume !(0 != test_~tmp~8); 953#L802-2 test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 954#L812 assume !(0 != test_~tmp___0~2); 951#L812-2 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 900#L822 assume 0 != test_~tmp___2~0; 901#L828-2 assume { :begin_inline_timeShift } true; 943#L604 assume !(0 != ~pumpRunning~0); 944#L604-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 949#L636 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 880#L932 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 881#L937 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 940#L756 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1006#L756-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1001#L762 processEnvironment_#t~ret40 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 935#L640 assume !(0 != processEnvironment_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 937#L628 assume { :end_inline_processEnvironment__wrappee__base } true; 939#L636-1 assume { :end_inline_processEnvironment } true; 985#L611-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1101#L892-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 1099#L165 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 1095#L171-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1094#L621 assume { :end_inline_timeShift } true; 930#L792-3 [2018-11-18 10:41:41,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:41,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 10:41:41,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:41,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:41,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:41:41,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:41,735 INFO L82 PathProgramCache]: Analyzing trace with hash -648119494, now seen corresponding path program 1 times [2018-11-18 10:41:41,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:41,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:41,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,736 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:41:41,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:41,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:41,747 INFO L82 PathProgramCache]: Analyzing trace with hash -774560770, now seen corresponding path program 1 times [2018-11-18 10:41:41,747 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:41,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:41,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:41:41,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:41:41,848 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 10:41:41,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:41:41,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:41:41,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:41:41,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:41:41,950 INFO L87 Difference]: Start difference. First operand 234 states and 298 transitions. cyclomatic complexity: 67 Second operand 5 states. [2018-11-18 10:41:42,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:41:42,044 INFO L93 Difference]: Finished difference Result 803 states and 1016 transitions. [2018-11-18 10:41:42,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:41:42,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 803 states and 1016 transitions. [2018-11-18 10:41:42,047 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 613 [2018-11-18 10:41:42,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 803 states to 803 states and 1016 transitions. [2018-11-18 10:41:42,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 803 [2018-11-18 10:41:42,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 803 [2018-11-18 10:41:42,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 803 states and 1016 transitions. [2018-11-18 10:41:42,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:41:42,052 INFO L705 BuchiCegarLoop]: Abstraction has 803 states and 1016 transitions. [2018-11-18 10:41:42,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states and 1016 transitions. [2018-11-18 10:41:42,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 461. [2018-11-18 10:41:42,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2018-11-18 10:41:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 577 transitions. [2018-11-18 10:41:42,069 INFO L728 BuchiCegarLoop]: Abstraction has 461 states and 577 transitions. [2018-11-18 10:41:42,069 INFO L608 BuchiCegarLoop]: Abstraction has 461 states and 577 transitions. [2018-11-18 10:41:42,069 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 10:41:42,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 461 states and 577 transitions. [2018-11-18 10:41:42,072 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 342 [2018-11-18 10:41:42,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:41:42,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:41:42,073 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:41:42,073 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:41:42,073 INFO L794 eck$LassoCheckResult]: Stem: 2054#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~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1962#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 1963#L578 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2004#L571 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 2005#L586 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 2028#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1985#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1986#L792-3 [2018-11-18 10:41:42,073 INFO L796 eck$LassoCheckResult]: Loop: 1986#L792-3 assume true; 2358#L792-1 assume !false; 2357#L793 assume test_~splverifierCounter~0 < 4; 2006#L794 test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 2007#L802 assume !(0 != test_~tmp~8); 2012#L802-2 test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 2013#L812 assume !(0 != test_~tmp___0~2); 2010#L812-2 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 1955#L822 assume 0 != test_~tmp___2~0; 1956#L828-2 assume { :begin_inline_timeShift } true; 2002#L604 assume !(0 != ~pumpRunning~0); 2003#L604-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2008#L636 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1935#L932 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1936#L937 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 1998#L756 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 2077#L756-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 2072#L762 processEnvironment_#t~ret40 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 1992#L640 assume !(0 != processEnvironment_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 1994#L628 assume { :end_inline_processEnvironment__wrappee__base } true; 2024#L636-1 assume { :end_inline_processEnvironment } true; 2049#L611-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 2050#L892-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 2361#L165 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2081#L924 __utac_acc__Specification3_spec__1_#t~ret2 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 2082#L171 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2360#L171-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2359#L621 assume { :end_inline_timeShift } true; 1986#L792-3 [2018-11-18 10:41:42,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:42,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 10:41:42,074 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:42,074 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:42,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:42,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:41:42,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:42,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:42,101 INFO L82 PathProgramCache]: Analyzing trace with hash -71323571, now seen corresponding path program 1 times [2018-11-18 10:41:42,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:42,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:42,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:42,102 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:41:42,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:42,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:41:42,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1322305519, now seen corresponding path program 1 times [2018-11-18 10:41:42,112 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:41:42,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:41:42,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:42,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:41:42,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:41:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:41:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:42:25,480 WARN L180 SmtUtils]: Spent 43.18 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 10:42:36,396 WARN L180 SmtUtils]: Spent 10.92 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 10:42:36,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 10:42:36 BoogieIcfgContainer [2018-11-18 10:42:36,466 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 10:42:36,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:42:36,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:42:36,467 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:42:36,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:41:40" (3/4) ... [2018-11-18 10:42:36,471 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 10:42:36,519 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a1dfc304-c8bd-432f-86ff-f0cd3ee573ba/bin-2019/uautomizer/witness.graphml [2018-11-18 10:42:36,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:42:36,520 INFO L168 Benchmark]: Toolchain (without parser) took 56620.01 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 272.1 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -212.7 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:42:36,521 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:42:36,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -194.5 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:42:36,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:42:36,522 INFO L168 Benchmark]: Boogie Preprocessor took 27.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:42:36,522 INFO L168 Benchmark]: RCFGBuilder took 500.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:42:36,522 INFO L168 Benchmark]: BuchiAutomizer took 55635.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 109.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -102.5 MB). Peak memory consumption was 304.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:42:36,522 INFO L168 Benchmark]: Witness Printer took 52.69 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:42:36,524 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 354.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -194.5 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 500.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 55635.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 109.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -102.5 MB). Peak memory consumption was 304.0 MB. Max. memory is 11.5 GB. * Witness Printer took 52.69 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 461 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 55.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 55.0s. Construction of modules took 0.2s. 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, 453 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 461 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 538 SDtfs, 1293 SDslu, 1606 SDs, 0 SdLazy, 147 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 792]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f0f2390=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b099b8b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18e51200=0, retValue_acc=0, "On"=0, retValue_acc=1, "On"=17, "OK"=36, "Pump(System:"=0, ") "=8, methaneLevelCritical=0, tmp___0=0, "Env(Water:%i"=0, "CRIT"=0, "__utac__get_this_argtype"=23, retValue_acc=0, ",Meth:"=0, tmp___1=0, tmp=0, "libacc.c"=33, tmp___0=1, "__utac__get_this_argtype"=19, tmp=0, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=22, "i > 0 && i <= this->argsCount"=29, "i > 0 && i <= this->argsCount"=26, ",Pump:"=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4039ecea=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_arg"=0, NULL=0, systemActive=1, waterLevel=1, "CRIT"=38, \result=1, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c1b9be2=0, "\n"=11, retValue_acc=0, \result=0, "Pump(System:"=18, "Off"=0, "On"=0, ",Pump:"=0, "\n"=0, ") "=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, "On"=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14b26e0d=0, "__utac__get_this_argtype"=0, "libacc.c"=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=20, retValue_acc=1, \result=1, "Off"=16, ",Meth:"=39, "i > 0 && i <= this->argsCount"=34, "OK"=0, ")"=0, tmp=1, tmp___2=169, tmp___0=0, retValue_acc=1, "libacc.c"=28, splverifierCounter=0, \result=0, ")"=37, tmp___1=0, head=0, "libacc.c"=0, tmp=0, "__utac__get_this_arg"=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@739902da=0, "__utac__get_this_arg"=0, "__utac__get_this_arg"=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47759811=169, "libacc.c"=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6207c09c=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@693c3a82=0, "i > 0 && i <= this->argsCount"=0, "Off"=12, "Off"=0, "Env(Water:%i"=35} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 792]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L487] FCALL "i > 0 && i <= this->argsCount" [L487] FCALL "libacc.c" [L488] FCALL "__utac__get_this_arg" [L494] FCALL "i > 0 && i <= this->argsCount" [L494] FCALL "libacc.c" [L495] FCALL "__utac__get_this_arg" [L533] FCALL "i > 0 && i <= this->argsCount" [L533] FCALL "libacc.c" [L534] FCALL "__utac__get_this_argtype" [L540] FCALL "i > 0 && i <= this->argsCount" [L540] FCALL "libacc.c" [L541] FCALL "__utac__get_this_argtype" [L716] FCALL "Pump(System:" [L720] FCALL "On" [L724] FCALL "Off" [L728] FCALL ",Pump:" [L732] FCALL "On" [L736] FCALL "Off" [L740] FCALL ") " [L742] FCALL "\n" [L901] FCALL "Env(Water:%i" [L902] FCALL ",Meth:" [L906] FCALL "CRIT" [L910] FCALL "OK" [L914] FCALL ")" [L40] int cleanupTimeShifts = 4; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] RET return (retValue_acc); [L128] EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 Loop: [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND FALSE !(\read(tmp)) [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND TRUE \read(tmp___2) [L837] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND TRUE \read(systemActive) [L613] CALL processEnvironment() [L633] int tmp ; [L636] COND TRUE ! pumpRunning [L638] CALL, EXPR isHighWaterLevel() [L748] int retValue_acc ; [L749] int tmp ; [L750] int tmp___0 ; [L754] CALL, EXPR isHighWaterSensorDry() [L929] int retValue_acc ; [L932] COND TRUE waterLevel < 2 [L933] retValue_acc = 1 [L934] RET return (retValue_acc); [L754] EXPR isHighWaterSensorDry() [L754] tmp = isHighWaterSensorDry() [L756] COND TRUE \read(tmp) [L757] tmp___0 = 0 [L761] retValue_acc = tmp___0 [L762] RET return (retValue_acc); [L638] EXPR isHighWaterLevel() [L638] tmp = isHighWaterLevel() [L640] COND FALSE !(\read(tmp)) [L646] RET, FCALL processEnvironment__wrappee__base() [L613] processEnvironment() [L619] CALL __utac_acc__Specification3_spec__1() [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L163] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] RET return (retValue_acc); [L163] EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L169] CALL, EXPR getWaterLevel() [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] RET return (retValue_acc); [L169] EXPR getWaterLevel() [L169] tmp___0 = getWaterLevel() [L171] COND FALSE, RET !(tmp___0 == 2) [L619] RET __utac_acc__Specification3_spec__1() [L837] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...