./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56_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_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/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 3236d89cedc127e9d85364eeaf0ba1493a1eae64 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:34:33,543 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:34:33,544 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:34:33,550 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:34:33,551 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:34:33,551 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:34:33,552 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:34:33,553 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:34:33,554 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:34:33,555 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:34:33,556 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:34:33,556 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:34:33,556 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:34:33,557 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:34:33,558 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:34:33,558 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:34:33,559 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:34:33,561 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:34:33,562 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:34:33,563 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:34:33,563 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:34:33,564 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:34:33,566 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:34:33,566 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:34:33,566 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:34:33,567 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:34:33,567 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:34:33,567 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:34:33,568 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:34:33,569 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:34:33,569 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:34:33,570 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:34:33,570 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:34:33,570 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:34:33,571 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:34:33,571 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:34:33,571 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 08:34:33,580 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:34:33,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:34:33,581 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:34:33,581 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:34:33,581 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:34:33,581 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 08:34:33,581 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 08:34:33,582 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 08:34:33,582 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 08:34:33,582 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 08:34:33,582 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 08:34:33,582 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:34:33,582 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:34:33,582 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:34:33,582 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:34:33,583 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:34:33,583 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:34:33,583 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 08:34:33,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 08:34:33,583 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 08:34:33,583 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:34:33,583 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:34:33,583 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 08:34:33,584 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:34:33,584 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 08:34:33,584 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:34:33,584 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:34:33,584 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 08:34:33,584 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:34:33,585 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:34:33,585 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 08:34:33,585 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 08:34:33,585 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_0aa633d1-dc41-460c-bf78-e837a21d5417/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 -> 3236d89cedc127e9d85364eeaf0ba1493a1eae64 [2018-11-18 08:34:33,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:34:33,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:34:33,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:34:33,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:34:33,622 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:34:33,622 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product56_false-unreach-call_false-termination.cil.c [2018-11-18 08:34:33,668 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/data/398d6668b/50b72b875f0840388ee032af793cbb08/FLAGf1d913795 [2018-11-18 08:34:34,035 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:34:34,036 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/sv-benchmarks/c/product-lines/minepump_spec1_product56_false-unreach-call_false-termination.cil.c [2018-11-18 08:34:34,045 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/data/398d6668b/50b72b875f0840388ee032af793cbb08/FLAGf1d913795 [2018-11-18 08:34:34,427 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/data/398d6668b/50b72b875f0840388ee032af793cbb08 [2018-11-18 08:34:34,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:34:34,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:34:34,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:34,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:34:34,435 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:34:34,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37764a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34, skipping insertion in model container [2018-11-18 08:34:34,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:34:34,475 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:34:34,675 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:34,683 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:34:34,776 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:34,794 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:34:34,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34 WrapperNode [2018-11-18 08:34:34,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:34,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:34,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:34:34,795 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:34:34,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:34,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:34:34,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:34:34,839 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:34:34,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... [2018-11-18 08:34:34,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:34:34,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:34:34,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:34:34,874 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:34:34,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/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 08:34:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:34:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:34:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:34:35,719 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:34:35,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:35 BoogieIcfgContainer [2018-11-18 08:34:35,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:34:35,721 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 08:34:35,721 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 08:34:35,723 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 08:34:35,723 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:35,723 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:34:34" (1/3) ... [2018-11-18 08:34:35,724 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cafe5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:35, skipping insertion in model container [2018-11-18 08:34:35,724 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:35,724 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:34" (2/3) ... [2018-11-18 08:34:35,724 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cafe5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:35, skipping insertion in model container [2018-11-18 08:34:35,725 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:35,725 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:35" (3/3) ... [2018-11-18 08:34:35,726 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product56_false-unreach-call_false-termination.cil.c [2018-11-18 08:34:35,755 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:34:35,756 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 08:34:35,756 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 08:34:35,756 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 08:34:35,756 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:34:35,756 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:34:35,756 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 08:34:35,756 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:34:35,756 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 08:34:35,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states. [2018-11-18 08:34:35,790 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2018-11-18 08:34:35,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:35,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:35,795 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:35,795 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:35,795 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 08:34:35,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states. [2018-11-18 08:34:35,799 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2018-11-18 08:34:35,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:35,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:35,800 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:35,800 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:35,804 INFO L794 eck$LassoCheckResult]: Stem: 103#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~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~string66.base, #t~string66.offset := #Ultimate.alloc(13);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 44];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 77];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 101];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 116];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 104];#memory_int := #memory_int[#t~string68.base,5 + #t~string68.offset := 58];#memory_int := #memory_int[#t~string68.base,6 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 67];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 82];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 73];#memory_int := #memory_int[#t~string70.base,3 + #t~string70.offset := 84];#memory_int := #memory_int[#t~string70.base,4 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 79];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 75];#memory_int := #memory_int[#t~string72.base,2 + #t~string72.offset := 0];call #t~string74.base, #t~string74.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string74.base,#t~string74.offset := 41];#memory_int := #memory_int[#t~string74.base,1 + #t~string74.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 245#L762true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 182#L755true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 137#L770true main_#t~ret64 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 174#L893true assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 85#L870true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 53#L422-3true [2018-11-18 08:34:35,804 INFO L796 eck$LassoCheckResult]: Loop: 53#L422-3true assume true; 57#L422-1true assume !false; 144#L423true assume test_~splverifierCounter~0 < 4; 79#L424true test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 216#L432true assume !(0 != test_~tmp~3); 200#L432-2true test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 167#L442true assume !(0 != test_~tmp___0~0); 153#L442-2true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 186#L452true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet38;havoc test_#t~nondet38; 193#L460true assume !(0 != test_~tmp___1~0); 195#L460-2true assume { :begin_inline_timeShift } true; 212#L498true assume !(0 != ~pumpRunning~0); 217#L498-2true assume !(0 != ~systemActive~0); 29#L505-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret62, __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_~tmp~9, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~9;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 39#L951-1true __utac_acc__Specification1_spec__1_#t~ret62 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~9 := __utac_acc__Specification1_spec__1_#t~ret62;havoc __utac_acc__Specification1_spec__1_#t~ret62; 243#L784true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9); 246#L784-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 191#L515true assume { :end_inline_timeShift } true; 53#L422-3true [2018-11-18 08:34:35,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:35,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 08:34:35,810 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:35,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:35,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:35,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:35,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:35,964 INFO L82 PathProgramCache]: Analyzing trace with hash -755327807, now seen corresponding path program 1 times [2018-11-18 08:34:35,964 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:35,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:35,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:35,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:35,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:35,979 INFO L82 PathProgramCache]: Analyzing trace with hash 427313541, now seen corresponding path program 1 times [2018-11-18 08:34:35,979 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:35,979 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:35,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:35,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:36,121 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 08:34:36,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:36,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:34:36,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:34:36,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:34:36,209 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 6 states. [2018-11-18 08:34:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:36,448 INFO L93 Difference]: Finished difference Result 872 states and 1159 transitions. [2018-11-18 08:34:36,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:34:36,450 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 872 states and 1159 transitions. [2018-11-18 08:34:36,459 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 576 [2018-11-18 08:34:36,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 872 states to 832 states and 1119 transitions. [2018-11-18 08:34:36,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 832 [2018-11-18 08:34:36,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 832 [2018-11-18 08:34:36,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 832 states and 1119 transitions. [2018-11-18 08:34:36,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:36,476 INFO L705 BuchiCegarLoop]: Abstraction has 832 states and 1119 transitions. [2018-11-18 08:34:36,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states and 1119 transitions. [2018-11-18 08:34:36,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 318. [2018-11-18 08:34:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-11-18 08:34:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 426 transitions. [2018-11-18 08:34:36,516 INFO L728 BuchiCegarLoop]: Abstraction has 318 states and 426 transitions. [2018-11-18 08:34:36,516 INFO L608 BuchiCegarLoop]: Abstraction has 318 states and 426 transitions. [2018-11-18 08:34:36,516 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 08:34:36,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 426 transitions. [2018-11-18 08:34:36,518 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 221 [2018-11-18 08:34:36,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:36,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:36,519 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:36,519 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] [2018-11-18 08:34:36,520 INFO L794 eck$LassoCheckResult]: Stem: 1318#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~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~string66.base, #t~string66.offset := #Ultimate.alloc(13);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 44];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 77];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 101];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 116];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 104];#memory_int := #memory_int[#t~string68.base,5 + #t~string68.offset := 58];#memory_int := #memory_int[#t~string68.base,6 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 67];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 82];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 73];#memory_int := #memory_int[#t~string70.base,3 + #t~string70.offset := 84];#memory_int := #memory_int[#t~string70.base,4 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 79];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 75];#memory_int := #memory_int[#t~string72.base,2 + #t~string72.offset := 0];call #t~string74.base, #t~string74.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string74.base,#t~string74.offset := 41];#memory_int := #memory_int[#t~string74.base,1 + #t~string74.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1184#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1185#L762 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1393#L755 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1352#L770 main_#t~ret64 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 1353#L893 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1292#L870 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1242#L422-3 [2018-11-18 08:34:36,520 INFO L796 eck$LassoCheckResult]: Loop: 1242#L422-3 assume true; 1243#L422-1 assume !false; 1246#L423 assume test_~splverifierCounter~0 < 4; 1281#L424 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 1282#L432 assume !(0 != test_~tmp~3); 1382#L432-2 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 1375#L442 assume !(0 != test_~tmp___0~0); 1367#L442-2 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 1368#L452 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1394#L733 assume { :end_inline_startSystem } true; 1395#L460-2 assume { :begin_inline_timeShift } true; 1412#L498 assume !(0 != ~pumpRunning~0); 1296#L498-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1236#L582 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret42, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1221#L951 isMethaneAlarm_#t~ret42 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret42;havoc isMethaneAlarm_#t~ret42;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; 1222#L626 processEnvironment_#t~ret41 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6 := processEnvironment_#t~ret41;havoc processEnvironment_#t~ret41; 1233#L586 assume 0 != processEnvironment_~tmp~6;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1345#L616-1 assume { :end_inline_deactivatePump } true; 1241#L582-1 assume { :end_inline_processEnvironment } true; 1213#L505-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret62, __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_~tmp~9, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~9;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1214#L951-1 __utac_acc__Specification1_spec__1_#t~ret62 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~9 := __utac_acc__Specification1_spec__1_#t~ret62;havoc __utac_acc__Specification1_spec__1_#t~ret62; 1226#L784 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9); 1390#L784-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1408#L515 assume { :end_inline_timeShift } true; 1242#L422-3 [2018-11-18 08:34:36,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:36,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 08:34:36,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:36,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:36,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:36,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:36,565 INFO L82 PathProgramCache]: Analyzing trace with hash -272681028, now seen corresponding path program 1 times [2018-11-18 08:34:36,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:36,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:36,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,567 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:36,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:36,576 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 08:34:36,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:36,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:36,577 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:36,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:36,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:36,578 INFO L87 Difference]: Start difference. First operand 318 states and 426 transitions. cyclomatic complexity: 111 Second operand 3 states. [2018-11-18 08:34:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:36,692 INFO L93 Difference]: Finished difference Result 326 states and 411 transitions. [2018-11-18 08:34:36,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:36,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 411 transitions. [2018-11-18 08:34:36,695 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 233 [2018-11-18 08:34:36,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 326 states and 411 transitions. [2018-11-18 08:34:36,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2018-11-18 08:34:36,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2018-11-18 08:34:36,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 411 transitions. [2018-11-18 08:34:36,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:36,697 INFO L705 BuchiCegarLoop]: Abstraction has 326 states and 411 transitions. [2018-11-18 08:34:36,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 411 transitions. [2018-11-18 08:34:36,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2018-11-18 08:34:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2018-11-18 08:34:36,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 411 transitions. [2018-11-18 08:34:36,707 INFO L728 BuchiCegarLoop]: Abstraction has 326 states and 411 transitions. [2018-11-18 08:34:36,707 INFO L608 BuchiCegarLoop]: Abstraction has 326 states and 411 transitions. [2018-11-18 08:34:36,707 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 08:34:36,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 411 transitions. [2018-11-18 08:34:36,709 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 233 [2018-11-18 08:34:36,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:36,709 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:36,711 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:36,711 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:36,711 INFO L794 eck$LassoCheckResult]: Stem: 1941#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~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~string66.base, #t~string66.offset := #Ultimate.alloc(13);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 44];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 77];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 101];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 116];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 104];#memory_int := #memory_int[#t~string68.base,5 + #t~string68.offset := 58];#memory_int := #memory_int[#t~string68.base,6 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 67];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 82];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 73];#memory_int := #memory_int[#t~string70.base,3 + #t~string70.offset := 84];#memory_int := #memory_int[#t~string70.base,4 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 79];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 75];#memory_int := #memory_int[#t~string72.base,2 + #t~string72.offset := 0];call #t~string74.base, #t~string74.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string74.base,#t~string74.offset := 41];#memory_int := #memory_int[#t~string74.base,1 + #t~string74.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1829#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1830#L762 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1999#L755 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1965#L770 main_#t~ret64 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 1966#L893 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1918#L870 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1919#L422-3 [2018-11-18 08:34:36,711 INFO L796 eck$LassoCheckResult]: Loop: 1919#L422-3 assume true; 1877#L422-1 assume !false; 1878#L423 assume test_~splverifierCounter~0 < 4; 1909#L424 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 1910#L432 assume !(0 != test_~tmp~3); 1990#L432-2 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 1983#L442 assume !(0 != test_~tmp___0~0); 1975#L442-2 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 1976#L452 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2000#L733 assume { :end_inline_startSystem } true; 2001#L460-2 assume { :begin_inline_timeShift } true; 2016#L498 assume !(0 != ~pumpRunning~0); 2027#L498-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1866#L582 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret40, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 1867#L556-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1936#L530-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1916#L991-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1917#L996-3 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 1952#L684-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1974#L684-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1977#L690-3 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 1886#L534-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 1887#L522-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1963#L530-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1903#L556-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1871#L582-1 assume { :end_inline_processEnvironment } true; 1872#L505-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret62, __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_~tmp~9, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~9;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 2132#L951-1 __utac_acc__Specification1_spec__1_#t~ret62 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~9 := __utac_acc__Specification1_spec__1_#t~ret62;havoc __utac_acc__Specification1_spec__1_#t~ret62; 2130#L784 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9); 2128#L784-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2127#L515 assume { :end_inline_timeShift } true; 1919#L422-3 [2018-11-18 08:34:36,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:36,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 08:34:36,712 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:36,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:36,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:36,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:36,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1778328041, now seen corresponding path program 1 times [2018-11-18 08:34:36,755 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:36,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:36,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,756 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:36,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:36,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1206342565, now seen corresponding path program 1 times [2018-11-18 08:34:36,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:36,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:36,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:36,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,980 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-11-18 08:35:18,726 WARN L180 SmtUtils]: Spent 41.70 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 08:35:35,682 WARN L180 SmtUtils]: Spent 16.96 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 08:35:35,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:35:35 BoogieIcfgContainer [2018-11-18 08:35:35,746 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 08:35:35,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:35:35,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:35:35,747 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:35:35,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:35" (3/4) ... [2018-11-18 08:35:35,750 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 08:35:35,794 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0aa633d1-dc41-460c-bf78-e837a21d5417/bin-2019/uautomizer/witness.graphml [2018-11-18 08:35:35,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:35:35,795 INFO L168 Benchmark]: Toolchain (without parser) took 61364.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 956.6 MB in the beginning and 914.1 MB in the end (delta: 42.4 MB). Peak memory consumption was 212.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:35,795 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:35:35,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:35,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.12 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:35,796 INFO L168 Benchmark]: Boogie Preprocessor took 35.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:35,796 INFO L168 Benchmark]: RCFGBuilder took 846.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 92.3 MB). Peak memory consumption was 92.3 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:35,796 INFO L168 Benchmark]: BuchiAutomizer took 60025.91 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.6 MB). Free memory was 1.0 GB in the beginning and 920.2 MB in the end (delta: 105.2 MB). Peak memory consumption was 165.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:35,797 INFO L168 Benchmark]: Witness Printer took 47.56 ms. Allocated memory is still 1.2 GB. Free memory was 920.2 MB in the beginning and 914.1 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:35,798 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.12 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 846.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 92.3 MB). Peak memory consumption was 92.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 60025.91 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.6 MB). Free memory was 1.0 GB in the beginning and 920.2 MB in the end (delta: 105.2 MB). Peak memory consumption was 165.6 MB. Max. memory is 11.5 GB. * Witness Printer took 47.56 ms. Allocated memory is still 1.2 GB. Free memory was 920.2 MB in the beginning and 914.1 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 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 326 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 59.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 59.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 514 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 326 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 647 SDtfs, 2294 SDslu, 2098 SDs, 0 SdLazy, 91 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 422]: 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, "On"=0, "On"=35, "Pump(System:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21d1766b=0, retValue_acc=0, "OK"=39, ") "=27, methaneLevelCritical=0, tmp___0=0, retValue_acc=0, tmp=0, ",Meth:"=0, "Env(Water:%i"=0, ",Meth:"=8, tmp___1=0, "__utac__get_this_argtype"=20, tmp=0, "__utac__get_this_arg"=24, "__utac__get_this_arg"=11, "libacc.c"=22, tmp=0, cleanupTimeShifts=4, "libacc.c"=17, tmp___0=0, retValue_acc=0, ",Pump:"=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c7f4728=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@556efe9e=153, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32cf1f11=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31ef8a4d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e2c5651=0, "__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@58c6f04b=0, NULL=0, systemActive=1, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@546d0921=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "\n"=28, \result=0, "Pump(System:"=36, "Off"=0, tmp___0=0, "On"=0, ",Pump:"=0, "\n"=0, ") "=0, \result=1, "i > 0 && i <= this->argsCount"=15, head=0, pumpRunning=0, \result=0, "On"=31, "i > 0 && i <= this->argsCount"=12, ")"=40, "libacc.c"=0, "Env(Water:%i"=37, "CRIT"=0, "i > 0 && i <= this->argsCount"=0, \result=1, "Off"=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78970133=0, "libacc.c"=26, tmp=0, "OK"=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d83a6a2=0, ")"=0, tmp=1, retValue_acc=1, tmp___2=153, "i > 0 && i <= this->argsCount"=19, splverifierCounter=0, \result=0, "CRIT"=38, head=0, "libacc.c"=0, "libacc.c"=14, tmp=0, "i > 0 && i <= this->argsCount"=23, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=18, "libacc.c"=0, "libacc.c"=0, "Off"=29, "Off"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45654711=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 422]: 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" [L644] FCALL "Pump(System:" [L648] FCALL "On" [L652] FCALL "Off" [L656] FCALL ",Pump:" [L660] FCALL "On" [L664] FCALL "Off" [L668] FCALL ") " [L670] FCALL "\n" [L960] FCALL "Env(Water:%i" [L961] FCALL ",Meth:" [L965] FCALL "CRIT" [L969] FCALL "OK" [L973] FCALL ")" [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L884] int retValue_acc ; [L885] int tmp ; [L889] FCALL select_helpers() [L890] FCALL select_features() [L891] CALL, EXPR valid_product() [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] RET return (retValue_acc); [L891] EXPR valid_product() [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) [L895] FCALL setup() [L896] CALL runTest() [L878] CALL test() [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 Loop: [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L454] CALL startSystem() [L732] RET systemActive = 1 [L454] startSystem() [L469] CALL timeShift() [L498] COND FALSE !(\read(pumpRunning)) [L505] COND TRUE \read(systemActive) [L507] CALL processEnvironment() [L579] int tmp ; [L582] COND FALSE !(\read(pumpRunning)) [L597] CALL processEnvironment__wrappee__lowWaterSensor() [L553] int tmp ; [L556] COND FALSE !(\read(pumpRunning)) [L571] CALL processEnvironment__wrappee__highWaterSensor() [L527] int tmp ; [L530] COND TRUE ! pumpRunning [L532] CALL, EXPR isHighWaterLevel() [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; [L682] CALL, EXPR isHighWaterSensorDry() [L988] int retValue_acc ; [L991] COND TRUE waterLevel < 2 [L992] retValue_acc = 1 [L993] RET return (retValue_acc); [L682] EXPR isHighWaterSensorDry() [L682] tmp = isHighWaterSensorDry() [L684] COND TRUE \read(tmp) [L685] tmp___0 = 0 [L689] retValue_acc = tmp___0 [L690] RET return (retValue_acc); [L532] EXPR isHighWaterLevel() [L532] tmp = isHighWaterLevel() [L534] COND FALSE !(\read(tmp)) [L540] RET, FCALL processEnvironment__wrappee__base() [L571] RET processEnvironment__wrappee__highWaterSensor() [L597] RET processEnvironment__wrappee__lowWaterSensor() [L507] processEnvironment() [L513] CALL __utac_acc__Specification1_spec__1() [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isMethaneLevelCritical() [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] RET return (retValue_acc); [L782] EXPR isMethaneLevelCritical() [L782] tmp = isMethaneLevelCritical() [L784] COND FALSE, RET !(\read(tmp)) [L513] RET __utac_acc__Specification1_spec__1() [L469] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...