./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product37_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_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product37_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/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 a4cdc62a5b5efdfba89a3280823bf73bd08d347a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:40:16,584 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:40:16,585 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:40:16,591 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:40:16,592 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:40:16,592 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:40:16,593 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:40:16,594 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:40:16,595 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:40:16,596 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:40:16,596 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:40:16,596 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:40:16,597 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:40:16,597 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:40:16,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:40:16,599 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:40:16,599 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:40:16,600 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:40:16,602 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:40:16,603 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:40:16,603 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:40:16,604 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:40:16,606 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:40:16,606 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:40:16,606 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:40:16,606 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:40:16,607 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:40:16,608 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:40:16,609 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:40:16,609 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:40:16,610 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:40:16,610 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:40:16,610 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:40:16,610 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:40:16,611 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:40:16,611 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:40:16,612 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 08:40:16,621 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:40:16,621 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:40:16,622 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:40:16,622 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:40:16,622 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:40:16,622 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 08:40:16,622 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 08:40:16,622 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 08:40:16,623 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 08:40:16,623 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 08:40:16,623 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 08:40:16,623 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:40:16,623 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:40:16,623 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:40:16,623 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:40:16,623 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:40:16,624 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:40:16,624 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 08:40:16,624 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 08:40:16,624 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 08:40:16,624 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:40:16,624 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:40:16,624 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 08:40:16,625 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:40:16,625 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 08:40:16,625 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:40:16,625 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:40:16,625 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 08:40:16,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:40:16,625 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:40:16,625 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 08:40:16,626 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 08:40:16,626 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_46bff238-2a56-4661-8e5f-f214b71b9632/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 -> a4cdc62a5b5efdfba89a3280823bf73bd08d347a [2018-11-18 08:40:16,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:40:16,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:40:16,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:40:16,659 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:40:16,659 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:40:16,659 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product37_false-unreach-call_false-termination.cil.c [2018-11-18 08:40:16,693 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/data/0ae20fcef/c43f057b2b794eb0b104ad0e52122701/FLAGf9d95a555 [2018-11-18 08:40:17,015 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:40:17,016 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/sv-benchmarks/c/product-lines/minepump_spec1_product37_false-unreach-call_false-termination.cil.c [2018-11-18 08:40:17,022 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/data/0ae20fcef/c43f057b2b794eb0b104ad0e52122701/FLAGf9d95a555 [2018-11-18 08:40:17,030 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/data/0ae20fcef/c43f057b2b794eb0b104ad0e52122701 [2018-11-18 08:40:17,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:40:17,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:40:17,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:40:17,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:40:17,036 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:40:17,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17, skipping insertion in model container [2018-11-18 08:40:17,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:40:17,071 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:40:17,243 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:40:17,251 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:40:17,351 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:40:17,368 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:40:17,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17 WrapperNode [2018-11-18 08:40:17,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:40:17,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:40:17,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:40:17,369 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:40:17,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:40:17,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:40:17,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:40:17,417 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:40:17,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... [2018-11-18 08:40:17,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:40:17,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:40:17,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:40:17,448 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:40:17,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/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 08:40:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:40:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:40:17,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:40:18,054 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:40:18,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:40:18 BoogieIcfgContainer [2018-11-18 08:40:18,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:40:18,055 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 08:40:18,055 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 08:40:18,057 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 08:40:18,058 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:40:18,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:40:17" (1/3) ... [2018-11-18 08:40:18,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a5b8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:40:18, skipping insertion in model container [2018-11-18 08:40:18,059 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:40:18,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:40:17" (2/3) ... [2018-11-18 08:40:18,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a5b8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:40:18, skipping insertion in model container [2018-11-18 08:40:18,059 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:40:18,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:40:18" (3/3) ... [2018-11-18 08:40:18,061 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product37_false-unreach-call_false-termination.cil.c [2018-11-18 08:40:18,091 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:40:18,091 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 08:40:18,091 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 08:40:18,091 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 08:40:18,091 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:40:18,091 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:40:18,091 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 08:40:18,092 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:40:18,092 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 08:40:18,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states. [2018-11-18 08:40:18,124 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2018-11-18 08:40:18,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:40:18,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:40:18,129 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:40:18,129 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 08:40:18,129 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 08:40:18,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states. [2018-11-18 08:40:18,135 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2018-11-18 08:40:18,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:40:18,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:40:18,136 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:40:18,136 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 08:40:18,140 INFO L794 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.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; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 103#L570true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 12#L563true 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; 106#L578true main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 98#L496true assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 53#L469true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 124#L776-3true [2018-11-18 08:40:18,140 INFO L796 eck$LassoCheckResult]: Loop: 124#L776-3true assume true; 119#L776-1true assume !false; 57#L777true assume test_~splverifierCounter~0 < 4; 7#L778true test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 13#L786true assume !(0 != test_~tmp~8); 14#L786-2true test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 95#L796true assume !(0 != test_~tmp___0~2); 100#L796-2true test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 142#L806true assume 0 != test_~tmp___2~0; 111#L812-2true assume { :begin_inline_timeShift } true; 94#L595true assume !(0 != ~pumpRunning~0); 97#L595-2true assume !(0 != ~systemActive~0); 147#L602-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 133#L875-1true __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; 58#L521true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 63#L521-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 43#L612true assume { :end_inline_timeShift } true; 124#L776-3true [2018-11-18 08:40:18,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:40:18,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 08:40:18,145 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:40:18,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:40:18,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:40:18,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:40:18,278 INFO L82 PathProgramCache]: Analyzing trace with hash -657132173, now seen corresponding path program 1 times [2018-11-18 08:40:18,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:40:18,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:40:18,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:40:18,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:40:18,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1588813777, now seen corresponding path program 1 times [2018-11-18 08:40:18,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:40:18,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:40:18,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:40:18,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:40:18,407 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 08:40:18,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:40:18,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:40:18,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:40:18,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:40:18,490 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 6 states. [2018-11-18 08:40:18,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:40:18,630 INFO L93 Difference]: Finished difference Result 155 states and 201 transitions. [2018-11-18 08:40:18,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 08:40:18,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 201 transitions. [2018-11-18 08:40:18,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2018-11-18 08:40:18,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 145 states and 191 transitions. [2018-11-18 08:40:18,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 145 [2018-11-18 08:40:18,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2018-11-18 08:40:18,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 191 transitions. [2018-11-18 08:40:18,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:40:18,641 INFO L705 BuchiCegarLoop]: Abstraction has 145 states and 191 transitions. [2018-11-18 08:40:18,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 191 transitions. [2018-11-18 08:40:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-11-18 08:40:18,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 08:40:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 191 transitions. [2018-11-18 08:40:18,664 INFO L728 BuchiCegarLoop]: Abstraction has 145 states and 191 transitions. [2018-11-18 08:40:18,664 INFO L608 BuchiCegarLoop]: Abstraction has 145 states and 191 transitions. [2018-11-18 08:40:18,664 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 08:40:18,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 191 transitions. [2018-11-18 08:40:18,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2018-11-18 08:40:18,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:40:18,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:40:18,666 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:40:18,666 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:40:18,667 INFO L794 eck$LassoCheckResult]: Stem: 461#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.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; 341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 342#L570 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 345#L563 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; 346#L578 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 450#L496 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 407#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 395#L776-3 [2018-11-18 08:40:18,667 INFO L796 eck$LassoCheckResult]: Loop: 395#L776-3 assume true; 465#L776-1 assume !false; 416#L777 assume test_~splverifierCounter~0 < 4; 337#L778 test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 338#L786 assume !(0 != test_~tmp~8); 348#L786-2 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 349#L796 assume !(0 != test_~tmp___0~2); 449#L796-2 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 451#L806 assume 0 != test_~tmp___2~0; 457#L812-2 assume { :begin_inline_timeShift } true; 448#L595 assume !(0 != ~pumpRunning~0); 355#L595-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 435#L653 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 437#L627-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 463#L619-3 assume { :end_inline_processEnvironment__wrappee__base } true; 460#L627-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 351#L653-1 assume { :end_inline_processEnvironment } true; 442#L602-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 471#L875-1 __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; 411#L521 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 412#L521-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 394#L612 assume { :end_inline_timeShift } true; 395#L776-3 [2018-11-18 08:40:18,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:40:18,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 08:40:18,667 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:40:18,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:40:18,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:40:18,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:40:18,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1419580075, now seen corresponding path program 1 times [2018-11-18 08:40:18,711 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:40:18,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:40:18,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,712 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:40:18,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:40:18,734 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 08:40:18,734 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:40:18,735 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:40:18,735 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:40:18,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:40:18,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:40:18,736 INFO L87 Difference]: Start difference. First operand 145 states and 191 transitions. cyclomatic complexity: 48 Second operand 3 states. [2018-11-18 08:40:18,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:40:18,819 INFO L93 Difference]: Finished difference Result 202 states and 255 transitions. [2018-11-18 08:40:18,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:40:18,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202 states and 255 transitions. [2018-11-18 08:40:18,821 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2018-11-18 08:40:18,822 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202 states to 202 states and 255 transitions. [2018-11-18 08:40:18,822 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 202 [2018-11-18 08:40:18,822 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 202 [2018-11-18 08:40:18,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 202 states and 255 transitions. [2018-11-18 08:40:18,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:40:18,823 INFO L705 BuchiCegarLoop]: Abstraction has 202 states and 255 transitions. [2018-11-18 08:40:18,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states and 255 transitions. [2018-11-18 08:40:18,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2018-11-18 08:40:18,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-11-18 08:40:18,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 255 transitions. [2018-11-18 08:40:18,831 INFO L728 BuchiCegarLoop]: Abstraction has 202 states and 255 transitions. [2018-11-18 08:40:18,831 INFO L608 BuchiCegarLoop]: Abstraction has 202 states and 255 transitions. [2018-11-18 08:40:18,831 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 08:40:18,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 202 states and 255 transitions. [2018-11-18 08:40:18,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2018-11-18 08:40:18,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:40:18,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:40:18,834 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:40:18,834 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 08:40:18,835 INFO L794 eck$LassoCheckResult]: Stem: 817#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.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; 694#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 695#L570 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 698#L563 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; 699#L578 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 807#L496 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 760#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 748#L776-3 [2018-11-18 08:40:18,835 INFO L796 eck$LassoCheckResult]: Loop: 748#L776-3 assume true; 819#L776-1 assume !false; 768#L777 assume test_~splverifierCounter~0 < 4; 690#L778 test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 691#L786 assume !(0 != test_~tmp~8); 701#L786-2 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 702#L796 assume !(0 != test_~tmp___0~2); 805#L796-2 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 808#L806 assume 0 != test_~tmp___2~0; 813#L812-2 assume { :begin_inline_timeShift } true; 802#L595 assume !(0 != ~pumpRunning~0); 803#L595-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 789#L653 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 790#L627-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, 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; 736#L915-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 737#L920-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 779#L755-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 753#L755-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 715#L761-1 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 716#L631-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 763#L619-2 assume { :end_inline_processEnvironment__wrappee__base } true; 815#L627-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 704#L653-1 assume { :end_inline_processEnvironment } true; 860#L602-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 859#L875-1 __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; 857#L521 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 855#L521-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 747#L612 assume { :end_inline_timeShift } true; 748#L776-3 [2018-11-18 08:40:18,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:40:18,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 08:40:18,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:40:18,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:40:18,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:40:18,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:40:18,872 INFO L82 PathProgramCache]: Analyzing trace with hash 886914573, now seen corresponding path program 1 times [2018-11-18 08:40:18,872 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:40:18,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:40:18,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,873 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:40:18,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:40:18,885 INFO L82 PathProgramCache]: Analyzing trace with hash -364067375, now seen corresponding path program 1 times [2018-11-18 08:40:18,885 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:40:18,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:40:18,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:40:18,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:40:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:40:19,042 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2018-11-18 08:40:47,954 WARN L180 SmtUtils]: Spent 28.86 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 08:41:08,022 WARN L180 SmtUtils]: Spent 20.07 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 08:41:08,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:41:08 BoogieIcfgContainer [2018-11-18 08:41:08,090 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 08:41:08,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:41:08,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:41:08,091 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:41:08,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:40:18" (3/4) ... [2018-11-18 08:41:08,093 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 08:41:08,136 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_46bff238-2a56-4661-8e5f-f214b71b9632/bin-2019/uautomizer/witness.graphml [2018-11-18 08:41:08,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:41:08,137 INFO L168 Benchmark]: Toolchain (without parser) took 51104.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 960.7 MB in the beginning and 774.8 MB in the end (delta: 186.0 MB). Peak memory consumption was 397.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:08,137 INFO L168 Benchmark]: CDTParser took 0.10 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 08:41:08,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:08,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.47 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:08,138 INFO L168 Benchmark]: Boogie Preprocessor took 30.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:41:08,138 INFO L168 Benchmark]: RCFGBuilder took 606.67 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:08,139 INFO L168 Benchmark]: BuchiAutomizer took 50035.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 777.3 MB in the end (delta: 273.1 MB). Peak memory consumption was 350.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:08,139 INFO L168 Benchmark]: Witness Printer took 45.34 ms. Allocated memory is still 1.2 GB. Free memory was 777.3 MB in the beginning and 774.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:08,141 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 335.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.47 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 606.67 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 50035.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 777.3 MB in the end (delta: 273.1 MB). Peak memory consumption was 350.7 MB. Max. memory is 11.5 GB. * Witness Printer took 45.34 ms. Allocated memory is still 1.2 GB. Free memory was 777.3 MB in the beginning and 774.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 202 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 49.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 49.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 202 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 398 SDtfs, 725 SDslu, 92 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 776]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, "Env(Water:%i"=0, "Off"=0, ") "=19, retValue_acc=0, "On"=0, "Pump(System:"=0, ")"=20, "Env(Water:%i"=12, methaneLevelCritical=0, tmp___0=0, "CRIT"=0, ",Meth:"=0, retValue_acc=0, "CRIT"=31, tmp=0, tmp___1=0, "__utac__get_this_argtype"=37, "__utac__get_this_arg"=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a4aa7a7=0, "__utac__get_this_arg"=16, tmp___0=0, "libacc.c"=24, cleanupTimeShifts=4, "libacc.c"=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e04fa95=0, "On"=33, tmp=0, "Off"=14, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f5464d=0, NULL=0, systemActive=1, waterLevel=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18b78b8b=0, retValue_acc=0, ",Pump:"=0, \result=0, "Off"=17, ") "=0, "\n"=0, "Off"=0, \result=1, "i > 0 && i <= this->argsCount"=29, head=0, pumpRunning=0, ",Pump:"=18, "\n"=34, \result=0, "i > 0 && i <= this->argsCount"=36, tmp=1, "libacc.c"=0, ",Meth:"=27, "OK"=0, tmp=0, "On"=0, "i > 0 && i <= this->argsCount"=0, retValue_acc=1, \result=1, "libacc.c"=28, ")"=0, tmp=1, tmp___2=174, tmp___0=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=15, splverifierCounter=0, \result=0, "OK"=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@652eec3e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7005fa04=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21e457c6=0, head=0, "libacc.c"=0, "libacc.c"=23, tmp=0, "i > 0 && i <= this->argsCount"=26, "__utac__get_this_arg"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a01ecca=0, "__utac__get_this_argtype"=38, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cc54c8d=174, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c877788=0, "libacc.c"=0, "Pump(System:"=35, "On"=22} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 776]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L337] FCALL "i > 0 && i <= this->argsCount" [L337] FCALL "libacc.c" [L338] FCALL "__utac__get_this_arg" [L344] FCALL "i > 0 && i <= this->argsCount" [L344] FCALL "libacc.c" [L345] FCALL "__utac__get_this_arg" [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_argtype" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_argtype" [L715] FCALL "Pump(System:" [L719] FCALL "On" [L723] FCALL "Off" [L727] FCALL ",Pump:" [L731] FCALL "On" [L735] FCALL "Off" [L739] FCALL ") " [L741] FCALL "\n" [L884] FCALL "Env(Water:%i" [L885] FCALL ",Meth:" [L889] FCALL "CRIT" [L893] FCALL "OK" [L897] FCALL ")" [L406] int cleanupTimeShifts = 4; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L487] int retValue_acc ; [L488] int tmp ; [L492] FCALL select_helpers() [L493] FCALL select_features() [L494] CALL, EXPR valid_product() [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] RET return (retValue_acc); [L494] EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 Loop: [L776] COND TRUE 1 [L778] COND TRUE splverifierCounter < 4 [L784] tmp = __VERIFIER_nondet_int() [L786] COND FALSE !(\read(tmp)) [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND FALSE !(\read(tmp___0)) [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) [L819] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] CALL processEnvironment() [L650] int tmp ; [L653] COND FALSE !(\read(pumpRunning)) [L668] CALL processEnvironment__wrappee__highWaterSensor() [L624] int tmp ; [L627] COND TRUE ! pumpRunning [L629] CALL, EXPR isHighWaterLevel() [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; [L753] CALL, EXPR isHighWaterSensorDry() [L912] int retValue_acc ; [L915] COND TRUE waterLevel < 2 [L916] retValue_acc = 1 [L917] RET return (retValue_acc); [L753] EXPR isHighWaterSensorDry() [L753] tmp = isHighWaterSensorDry() [L755] COND TRUE \read(tmp) [L756] tmp___0 = 0 [L760] retValue_acc = tmp___0 [L761] RET return (retValue_acc); [L629] EXPR isHighWaterLevel() [L629] tmp = isHighWaterLevel() [L631] COND FALSE !(\read(tmp)) [L637] RET, FCALL processEnvironment__wrappee__base() [L668] RET processEnvironment__wrappee__highWaterSensor() [L604] processEnvironment() [L610] CALL __utac_acc__Specification1_spec__1() [L514] int tmp ; [L515] int tmp___0 ; [L519] CALL, EXPR isMethaneLevelCritical() [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] RET return (retValue_acc); [L519] EXPR isMethaneLevelCritical() [L519] tmp = isMethaneLevelCritical() [L521] COND FALSE, RET !(\read(tmp)) [L610] RET __utac_acc__Specification1_spec__1() [L819] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...