./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 209a5f451d4da606f6f89775a0cb8490169e98a1 .............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-11-28 21:10:40,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:10:40,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:10:40,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:10:40,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:10:40,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:10:40,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:10:40,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:10:40,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:10:40,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:10:40,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:10:40,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:10:40,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:10:40,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:10:40,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:10:40,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:10:40,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:10:40,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:10:40,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:10:40,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:10:40,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:10:40,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:10:40,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:10:40,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:10:40,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:10:40,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:10:40,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:10:40,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:10:40,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:10:40,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:10:40,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:10:40,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:10:40,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:10:40,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:10:40,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:10:40,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:10:40,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:10:40,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:10:40,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:10:40,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:10:40,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:10:40,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:10:40,623 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:10:40,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:10:40,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:10:40,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:10:40,634 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:10:40,634 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:10:40,634 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:10:40,634 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:10:40,634 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:10:40,635 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:10:40,635 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:10:40,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:10:40,635 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:10:40,635 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:10:40,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:10:40,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:10:40,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:10:40,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:10:40,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:10:40,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:10:40,639 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:10:40,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:10:40,640 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:10:40,640 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:10:40,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:10:40,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:10:40,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:10:40,641 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:10:40,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:10:40,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:10:40,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:10:40,642 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:10:40,643 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:10:40,643 INFO L138 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 209a5f451d4da606f6f89775a0cb8490169e98a1 [2019-11-28 21:10:40,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:10:40,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:10:40,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:10:40,964 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:10:40,964 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:10:40,965 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-11-28 21:10:41,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce016a533/f80f92b88f834b8abddc01447a92a16b/FLAGc67a7b5d1 [2019-11-28 21:10:41,542 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:10:41,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-11-28 21:10:41,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce016a533/f80f92b88f834b8abddc01447a92a16b/FLAGc67a7b5d1 [2019-11-28 21:10:41,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce016a533/f80f92b88f834b8abddc01447a92a16b [2019-11-28 21:10:41,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:10:41,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:10:41,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:41,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:10:41,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:10:41,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:41" (1/1) ... [2019-11-28 21:10:41,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564c4a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:41, skipping insertion in model container [2019-11-28 21:10:41,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:41" (1/1) ... [2019-11-28 21:10:41,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:10:41,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:10:42,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:42,345 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:10:42,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:42,489 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:10:42,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42 WrapperNode [2019-11-28 21:10:42,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:42,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:42,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:10:42,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:10:42,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... [2019-11-28 21:10:42,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... [2019-11-28 21:10:42,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:42,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:10:42,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:10:42,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:10:42,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... [2019-11-28 21:10:42,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... [2019-11-28 21:10:42,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... [2019-11-28 21:10:42,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... [2019-11-28 21:10:42,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... [2019-11-28 21:10:42,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... [2019-11-28 21:10:42,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... [2019-11-28 21:10:42,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:10:42,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:10:42,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:10:42,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:10:42,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 21:10:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:10:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:10:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:10:42,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:10:43,700 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:10:43,700 INFO L287 CfgBuilder]: Removed 194 assume(true) statements. [2019-11-28 21:10:43,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:43 BoogieIcfgContainer [2019-11-28 21:10:43,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:10:43,702 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:10:43,703 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:10:43,706 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:10:43,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:43,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:10:41" (1/3) ... [2019-11-28 21:10:43,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f510630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:43, skipping insertion in model container [2019-11-28 21:10:43,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:43,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:42" (2/3) ... [2019-11-28 21:10:43,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f510630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:43, skipping insertion in model container [2019-11-28 21:10:43,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:43,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:43" (3/3) ... [2019-11-28 21:10:43,712 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2019-11-28 21:10:43,771 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:10:43,772 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:10:43,772 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:10:43,773 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:10:43,774 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:10:43,774 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:10:43,774 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:10:43,774 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:10:43,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2019-11-28 21:10:43,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-11-28 21:10:43,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:43,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:43,837 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:43,837 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:43,837 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:10:43,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2019-11-28 21:10:43,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-11-28 21:10:43,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:43,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:43,847 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:43,847 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:43,852 INFO L794 eck$LassoCheckResult]: Stem: 96#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 13#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 100#L941true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 115#L949true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 77#L130true assume 0 != main_~tmp~0; 28#L103true havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 44#L155-1true [2019-11-28 21:10:43,853 INFO L796 eck$LassoCheckResult]: Loop: 44#L155-1true assume !false; 32#L863true assume test_~splverifierCounter~0 < 4; 103#L864true test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 104#L872true assume !(0 != test_~tmp~9); 106#L872-1true test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 38#L882true assume !(0 != test_~tmp___0~2); 40#L882-1true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 85#L892true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 91#L900-2true assume !(0 != ~pumpRunning~0); 76#L562true assume !(0 != ~systemActive~0); 111#L569true havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 8#L833true __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 47#L155true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 44#L155-1true [2019-11-28 21:10:43,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:43,860 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:10:43,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:43,869 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941095410] [2019-11-28 21:10:43,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:44,354 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:44,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:44,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1678359101, now seen corresponding path program 1 times [2019-11-28 21:10:44,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:44,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708957803] [2019-11-28 21:10:44,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:44,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:10:44,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708957803] [2019-11-28 21:10:44,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:44,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:10:44,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620005372] [2019-11-28 21:10:44,451 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:10:44,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:44,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:10:44,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:10:44,475 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 3 states. [2019-11-28 21:10:44,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:44,537 INFO L93 Difference]: Finished difference Result 126 states and 179 transitions. [2019-11-28 21:10:44,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:10:44,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 179 transitions. [2019-11-28 21:10:44,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-11-28 21:10:44,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 119 states and 171 transitions. [2019-11-28 21:10:44,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2019-11-28 21:10:44,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2019-11-28 21:10:44,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 171 transitions. [2019-11-28 21:10:44,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:44,562 INFO L688 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2019-11-28 21:10:44,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 171 transitions. [2019-11-28 21:10:44,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-11-28 21:10:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-28 21:10:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2019-11-28 21:10:44,610 INFO L711 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2019-11-28 21:10:44,610 INFO L591 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2019-11-28 21:10:44,610 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:10:44,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 171 transitions. [2019-11-28 21:10:44,613 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-11-28 21:10:44,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:44,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:44,614 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:44,614 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:44,615 INFO L794 eck$LassoCheckResult]: Stem: 367#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 280#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 281#L941 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 372#L949 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 364#L130 assume 0 != main_~tmp~0; 308#L103 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 309#L155-1 [2019-11-28 21:10:44,615 INFO L796 eck$LassoCheckResult]: Loop: 309#L155-1 assume !false; 314#L863 assume test_~splverifierCounter~0 < 4; 315#L864 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 374#L872 assume !(0 != test_~tmp~9); 369#L872-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 322#L882 assume !(0 != test_~tmp___0~2); 323#L882-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 327#L892 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 365#L900-2 assume !(0 != ~pumpRunning~0); 293#L562 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 350#L620 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 351#L594-1 assume !(0 == ~pumpRunning~0); 332#L569 havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 271#L833 __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 272#L155 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 309#L155-1 [2019-11-28 21:10:44,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:44,616 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:10:44,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:44,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775037372] [2019-11-28 21:10:44,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:44,722 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:44,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:44,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1075674043, now seen corresponding path program 1 times [2019-11-28 21:10:44,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:44,726 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118984378] [2019-11-28 21:10:44,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:10:44,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118984378] [2019-11-28 21:10:44,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:44,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:10:44,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031097280] [2019-11-28 21:10:44,752 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:10:44,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:44,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:10:44,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:10:44,755 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-11-28 21:10:44,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:44,891 INFO L93 Difference]: Finished difference Result 160 states and 219 transitions. [2019-11-28 21:10:44,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:10:44,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 219 transitions. [2019-11-28 21:10:44,894 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-11-28 21:10:44,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 219 transitions. [2019-11-28 21:10:44,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2019-11-28 21:10:44,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2019-11-28 21:10:44,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 219 transitions. [2019-11-28 21:10:44,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:44,899 INFO L688 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2019-11-28 21:10:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 219 transitions. [2019-11-28 21:10:44,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-11-28 21:10:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-28 21:10:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 219 transitions. [2019-11-28 21:10:44,909 INFO L711 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2019-11-28 21:10:44,909 INFO L591 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2019-11-28 21:10:44,909 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:10:44,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 219 transitions. [2019-11-28 21:10:44,911 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-11-28 21:10:44,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:44,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:44,912 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:44,912 INFO L850 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] [2019-11-28 21:10:44,912 INFO L794 eck$LassoCheckResult]: Stem: 660#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 565#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 566#L941 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 665#L949 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 651#L130 assume 0 != main_~tmp~0; 593#L103 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 594#L155-1 [2019-11-28 21:10:44,913 INFO L796 eck$LassoCheckResult]: Loop: 594#L155-1 assume !false; 599#L863 assume test_~splverifierCounter~0 < 4; 600#L864 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 667#L872 assume !(0 != test_~tmp~9); 662#L872-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 608#L882 assume !(0 != test_~tmp___0~2); 609#L882-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 613#L892 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 655#L900-2 assume !(0 != ~pumpRunning~0); 658#L562 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 639#L620 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 640#L594-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 571#L841-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 572#L846-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 598#L739-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 569#L739-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 570#L745-1 processEnvironment__wrappee__methaneQuery_#t~ret38 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret38;havoc processEnvironment__wrappee__methaneQuery_#t~ret38; 645#L598-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 618#L569 havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 556#L833 __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 557#L155 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 594#L155-1 [2019-11-28 21:10:44,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:44,913 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:10:44,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:44,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810378937] [2019-11-28 21:10:44,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:45,023 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:45,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:45,024 INFO L82 PathProgramCache]: Analyzing trace with hash -515194543, now seen corresponding path program 1 times [2019-11-28 21:10:45,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:45,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839077387] [2019-11-28 21:10:45,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:45,057 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:45,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:45,058 INFO L82 PathProgramCache]: Analyzing trace with hash -59123349, now seen corresponding path program 1 times [2019-11-28 21:10:45,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:45,059 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877988674] [2019-11-28 21:10:45,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:45,187 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:45,346 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-28 21:11:09,599 WARN L192 SmtUtils]: Spent 24.16 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:11:23,297 WARN L192 SmtUtils]: Spent 13.69 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:11:23,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:11:23 BoogieIcfgContainer [2019-11-28 21:11:23,376 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:11:23,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:11:23,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:11:23,377 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:11:23,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:43" (3/4) ... [2019-11-28 21:11:23,381 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:11:23,504 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:11:23,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:11:23,506 INFO L168 Benchmark]: Toolchain (without parser) took 41645.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 308.8 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -284.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:23,507 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:11:23,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:23,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.02 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:23,509 INFO L168 Benchmark]: Boogie Preprocessor took 76.35 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. [2019-11-28 21:11:23,510 INFO L168 Benchmark]: RCFGBuilder took 1047.44 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: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:23,511 INFO L168 Benchmark]: BuchiAutomizer took 39673.73 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -211.0 MB). Peak memory consumption was 373.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:23,511 INFO L168 Benchmark]: Witness Printer took 127.74 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:11:23,516 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 628.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.02 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.35 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 1047.44 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: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39673.73 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -211.0 MB). Peak memory consumption was 373.2 MB. Max. memory is 11.5 GB. * Witness Printer took 127.74 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 39.1s. Construction of modules took 0.1s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 332 SDtfs, 304 SDslu, 57 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 862]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6365} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=16206, retValue_acc=0, NULL=6365, NULL=0, NULL=0, NULL=0, NULL=6371, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, NULL=0, NULL=6367, NULL=0, NULL=6366, tmp___1=0, tmp=0, retValue_acc=0, NULL=6375, tmp___0=0, cleanupTimeShifts=4, NULL=6379, NULL=6384, NULL=6373, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a89f34c=0, NULL=6370, NULL=16205, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@153b4b06=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20bc095d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30ee2f01=0, NULL=0, \result=0, NULL=6381, NULL=6387, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=6382, NULL=6388, \result=0, NULL=6386, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@746e56b5=0, NULL=6374, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b552e3a=0, NULL=0, NULL=0, NULL=0, NULL=6376, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5244bda2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ace3562=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22469a09=0, NULL=6378, tmp=1, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@323a96db=0, tmp___2=55, tmp___0=0, NULL=6377, NULL=6369, splverifierCounter=0, head=0, NULL=0, NULL=6372, NULL=0, tmp=0, NULL=6368, NULL=0, NULL=0, NULL=6380, NULL=6385, NULL=16204, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L758] int waterLevel = 1; [L759] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L945] int retValue_acc ; [L948] retValue_acc = 1 [L949] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L853] int splverifierCounter ; [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L857] int tmp___2 ; [L860] splverifierCounter = 0 Loop: [L862] COND TRUE 1 [L864] COND TRUE splverifierCounter < 4 [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L753] systemActive = 1 [L562] COND FALSE !(\read(pumpRunning)) [L569] COND TRUE \read(systemActive) [L617] int tmp ; [L620] COND FALSE !(\read(pumpRunning)) [L591] int tmp ; [L594] COND TRUE ! pumpRunning [L731] int retValue_acc ; [L732] int tmp ; [L733] int tmp___0 ; [L838] int retValue_acc ; [L841] COND TRUE waterLevel < 2 [L842] retValue_acc = 1 [L843] return (retValue_acc); [L737] tmp = isHighWaterSensorDry() [L739] COND TRUE \read(tmp) [L740] tmp___0 = 0 [L744] retValue_acc = tmp___0 [L745] return (retValue_acc); [L596] tmp = isHighWaterLevel() [L598] COND FALSE !(\read(tmp)) [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...