./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 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_spec3_product54.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 59e8ffce74c1b6945f19c84278937c63a4a3dd33 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-678e011 [2019-11-19 22:28:52,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:28:52,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:28:52,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:28:52,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:28:52,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:28:52,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:28:52,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:28:52,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:28:52,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:28:52,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:28:52,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:28:52,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:28:52,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:28:52,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:28:52,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:28:52,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:28:52,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:28:52,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:28:52,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:28:52,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:28:52,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:28:52,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:28:52,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:28:52,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:28:52,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:28:52,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:28:52,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:28:52,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:28:52,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:28:52,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:28:52,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:28:52,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:28:52,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:28:52,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:28:52,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:28:52,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:28:52,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:28:52,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:28:52,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:28:52,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:28:52,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:28:52,566 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:28:52,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:28:52,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:28:52,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:28:52,569 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:28:52,569 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:28:52,570 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:28:52,570 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:28:52,570 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:28:52,570 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:28:52,571 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:28:52,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:28:52,572 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:28:52,573 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:28:52,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:28:52,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:28:52,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:28:52,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:28:52,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:28:52,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:28:52,574 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:28:52,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:28:52,575 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:28:52,575 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:28:52,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:28:52,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:28:52,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:28:52,576 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:28:52,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:28:52,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:28:52,576 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:28:52,578 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:28:52,579 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 -> 59e8ffce74c1b6945f19c84278937c63a4a3dd33 [2019-11-19 22:28:52,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:28:52,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:28:52,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:28:52,933 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:28:52,933 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:28:52,934 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product54.cil.c [2019-11-19 22:28:52,992 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e66402da/68cc37101a914b78a081dc5d44c6a2e9/FLAG1a806be11 [2019-11-19 22:28:53,539 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:28:53,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product54.cil.c [2019-11-19 22:28:53,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e66402da/68cc37101a914b78a081dc5d44c6a2e9/FLAG1a806be11 [2019-11-19 22:28:53,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e66402da/68cc37101a914b78a081dc5d44c6a2e9 [2019-11-19 22:28:53,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:28:53,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:28:53,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:28:53,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:28:53,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:28:53,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:28:53" (1/1) ... [2019-11-19 22:28:53,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0505fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:53, skipping insertion in model container [2019-11-19 22:28:53,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:28:53" (1/1) ... [2019-11-19 22:28:53,829 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:28:53,885 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:28:54,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:28:54,468 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:28:54,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:28:54,608 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:28:54,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54 WrapperNode [2019-11-19 22:28:54,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:28:54,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:28:54,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:28:54,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:28:54,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (1/1) ... [2019-11-19 22:28:54,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (1/1) ... [2019-11-19 22:28:54,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:28:54,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:28:54,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:28:54,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:28:54,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (1/1) ... [2019-11-19 22:28:54,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (1/1) ... [2019-11-19 22:28:54,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (1/1) ... [2019-11-19 22:28:54,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (1/1) ... [2019-11-19 22:28:54,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (1/1) ... [2019-11-19 22:28:54,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (1/1) ... [2019-11-19 22:28:54,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (1/1) ... [2019-11-19 22:28:54,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:28:54,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:28:54,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:28:54,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:28:54,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (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 [2019-11-19 22:28:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:28:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 22:28:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:28:54,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:28:55,990 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:28:55,991 INFO L285 CfgBuilder]: Removed 284 assume(true) statements. [2019-11-19 22:28:55,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:55 BoogieIcfgContainer [2019-11-19 22:28:55,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:28:55,993 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:28:55,994 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:28:55,997 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:28:55,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:28:55,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:28:53" (1/3) ... [2019-11-19 22:28:56,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cc523d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:28:56, skipping insertion in model container [2019-11-19 22:28:56,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:28:56,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:54" (2/3) ... [2019-11-19 22:28:56,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cc523d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:28:56, skipping insertion in model container [2019-11-19 22:28:56,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:28:56,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:55" (3/3) ... [2019-11-19 22:28:56,004 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product54.cil.c [2019-11-19 22:28:56,054 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:28:56,054 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:28:56,055 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:28:56,055 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:28:56,055 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:28:56,055 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:28:56,056 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:28:56,056 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:28:56,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2019-11-19 22:28:56,112 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2019-11-19 22:28:56,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:56,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:56,121 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:28:56,121 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:56,121 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:28:56,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2019-11-19 22:28:56,132 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2019-11-19 22:28:56,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:56,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:56,134 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:28:56,134 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:56,140 INFO L794 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 11#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 163#L319true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 164#L327true main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 159#L239true assume 0 != main_~tmp~0; 131#L212true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 154#L278-1true [2019-11-19 22:28:56,141 INFO L796 eck$LassoCheckResult]: Loop: 154#L278-1true assume !false; 158#L710true assume test_~splverifierCounter~0 < 4; 69#L711true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 108#L719true assume !(0 != test_~tmp~5); 82#L719-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 160#L729true assume !(0 != test_~tmp___0~1); 162#L729-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 28#L739true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 37#L747-2true assume !(0 != ~pumpRunning~0); 19#L775true assume !(0 != ~systemActive~0); 114#L782true havoc __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_#t~ret13, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 111#L91-1true __utac_acc__Specification3_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret11;havoc __utac_acc__Specification3_spec__1_#t~ret11; 161#L272true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 154#L278-1true [2019-11-19 22:28:56,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:56,148 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-19 22:28:56,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:56,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750171246] [2019-11-19 22:28:56,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:56,542 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:56,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:56,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1675526986, now seen corresponding path program 1 times [2019-11-19 22:28:56,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:56,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600885413] [2019-11-19 22:28:56,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:56,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:28:56,611 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600885413] [2019-11-19 22:28:56,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:56,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:28:56,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937407708] [2019-11-19 22:28:56,620 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 22:28:56,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:56,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:28:56,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:28:56,641 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2019-11-19 22:28:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:56,732 INFO L93 Difference]: Finished difference Result 192 states and 284 transitions. [2019-11-19 22:28:56,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:28:56,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 192 states and 284 transitions. [2019-11-19 22:28:56,741 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-11-19 22:28:56,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 192 states to 185 states and 276 transitions. [2019-11-19 22:28:56,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 185 [2019-11-19 22:28:56,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 185 [2019-11-19 22:28:56,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 185 states and 276 transitions. [2019-11-19 22:28:56,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:28:56,755 INFO L688 BuchiCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-11-19 22:28:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states and 276 transitions. [2019-11-19 22:28:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2019-11-19 22:28:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-11-19 22:28:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2019-11-19 22:28:56,811 INFO L711 BuchiCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-11-19 22:28:56,811 INFO L591 BuchiCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-11-19 22:28:56,811 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:28:56,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 185 states and 276 transitions. [2019-11-19 22:28:56,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-11-19 22:28:56,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:56,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:56,816 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:28:56,816 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:56,816 INFO L794 eck$LassoCheckResult]: Stem: 569#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 413#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 414#L319 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 573#L327 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 571#L239 assume 0 != main_~tmp~0; 556#L212 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 442#L278-1 [2019-11-19 22:28:56,817 INFO L796 eck$LassoCheckResult]: Loop: 442#L278-1 assume !false; 568#L710 assume test_~splverifierCounter~0 < 4; 494#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 495#L719 assume !(0 != test_~tmp~5); 508#L719-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 509#L729 assume !(0 != test_~tmp___0~1); 503#L729-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 445#L739 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 446#L747-2 assume !(0 != ~pumpRunning~0); 425#L775 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 428#L859 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret55, processEnvironment__wrappee__lowWaterSensor_~tmp~7;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7; 402#L833-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 404#L807-3 assume !(0 == ~pumpRunning~0); 401#L782 havoc __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_#t~ret13, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 541#L91-1 __utac_acc__Specification3_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret11;havoc __utac_acc__Specification3_spec__1_#t~ret11; 542#L272 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 442#L278-1 [2019-11-19 22:28:56,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:56,818 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-19 22:28:56,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:56,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192621871] [2019-11-19 22:28:56,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:57,001 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:57,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:57,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1905346327, now seen corresponding path program 1 times [2019-11-19 22:28:57,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:57,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713138525] [2019-11-19 22:28:57,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:28:57,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713138525] [2019-11-19 22:28:57,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:57,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:28:57,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180171693] [2019-11-19 22:28:57,020 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 22:28:57,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:57,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:28:57,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:28:57,021 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. cyclomatic complexity: 93 Second operand 3 states. [2019-11-19 22:28:57,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:57,170 INFO L93 Difference]: Finished difference Result 196 states and 273 transitions. [2019-11-19 22:28:57,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:28:57,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 273 transitions. [2019-11-19 22:28:57,174 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 134 [2019-11-19 22:28:57,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 196 states and 273 transitions. [2019-11-19 22:28:57,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 196 [2019-11-19 22:28:57,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2019-11-19 22:28:57,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 273 transitions. [2019-11-19 22:28:57,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:28:57,180 INFO L688 BuchiCegarLoop]: Abstraction has 196 states and 273 transitions. [2019-11-19 22:28:57,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 273 transitions. [2019-11-19 22:28:57,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2019-11-19 22:28:57,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-11-19 22:28:57,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 273 transitions. [2019-11-19 22:28:57,191 INFO L711 BuchiCegarLoop]: Abstraction has 196 states and 273 transitions. [2019-11-19 22:28:57,191 INFO L591 BuchiCegarLoop]: Abstraction has 196 states and 273 transitions. [2019-11-19 22:28:57,192 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:28:57,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 273 transitions. [2019-11-19 22:28:57,194 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 134 [2019-11-19 22:28:57,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:57,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:57,196 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:28:57,196 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, 1] [2019-11-19 22:28:57,197 INFO L794 eck$LassoCheckResult]: Stem: 923#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 796#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 797#L319 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 927#L327 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 925#L239 assume 0 != main_~tmp~0; 910#L212 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 825#L278-1 [2019-11-19 22:28:57,198 INFO L796 eck$LassoCheckResult]: Loop: 825#L278-1 assume !false; 922#L710 assume test_~splverifierCounter~0 < 4; 865#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 866#L719 assume !(0 != test_~tmp~5); 875#L719-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 876#L729 assume !(0 != test_~tmp___0~1); 873#L729-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 827#L739 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 828#L747-2 assume !(0 != ~pumpRunning~0); 811#L775 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 812#L859 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret55, processEnvironment__wrappee__lowWaterSensor_~tmp~7;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7; 790#L833-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 791#L807-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 804#L131-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 805#L136-3 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 826#L961-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 879#L961-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 850#L967-3 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 851#L811-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 789#L782 havoc __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_#t~ret13, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 898#L91-1 __utac_acc__Specification3_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret11;havoc __utac_acc__Specification3_spec__1_#t~ret11; 899#L272 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 825#L278-1 [2019-11-19 22:28:57,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:57,198 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-19 22:28:57,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:57,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55780860] [2019-11-19 22:28:57,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:57,314 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:57,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:57,315 INFO L82 PathProgramCache]: Analyzing trace with hash -659266411, now seen corresponding path program 1 times [2019-11-19 22:28:57,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:57,316 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003321303] [2019-11-19 22:28:57,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:57,333 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:57,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:57,334 INFO L82 PathProgramCache]: Analyzing trace with hash 594038715, now seen corresponding path program 1 times [2019-11-19 22:28:57,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:57,334 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608757413] [2019-11-19 22:28:57,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:28:57,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608757413] [2019-11-19 22:28:57,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:57,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:28:57,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627551252] [2019-11-19 22:28:57,565 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-19 22:28:57,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:57,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:28:57,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:28:57,653 INFO L87 Difference]: Start difference. First operand 196 states and 273 transitions. cyclomatic complexity: 79 Second operand 5 states. [2019-11-19 22:28:57,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:57,841 INFO L93 Difference]: Finished difference Result 656 states and 915 transitions. [2019-11-19 22:28:57,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 22:28:57,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 656 states and 915 transitions. [2019-11-19 22:28:57,849 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 472 [2019-11-19 22:28:57,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 656 states to 656 states and 915 transitions. [2019-11-19 22:28:57,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 656 [2019-11-19 22:28:57,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 656 [2019-11-19 22:28:57,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 656 states and 915 transitions. [2019-11-19 22:28:57,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:28:57,861 INFO L688 BuchiCegarLoop]: Abstraction has 656 states and 915 transitions. [2019-11-19 22:28:57,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states and 915 transitions. [2019-11-19 22:28:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 386. [2019-11-19 22:28:57,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2019-11-19 22:28:57,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 532 transitions. [2019-11-19 22:28:57,884 INFO L711 BuchiCegarLoop]: Abstraction has 386 states and 532 transitions. [2019-11-19 22:28:57,884 INFO L591 BuchiCegarLoop]: Abstraction has 386 states and 532 transitions. [2019-11-19 22:28:57,884 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 22:28:57,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 386 states and 532 transitions. [2019-11-19 22:28:57,887 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 268 [2019-11-19 22:28:57,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:57,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:57,890 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:28:57,891 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, 1, 1, 1] [2019-11-19 22:28:57,892 INFO L794 eck$LassoCheckResult]: Stem: 1803#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 1668#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 1669#L319 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 1810#L327 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 1807#L239 assume 0 != main_~tmp~0; 1787#L212 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1788#L278-1 [2019-11-19 22:28:57,892 INFO L796 eck$LassoCheckResult]: Loop: 1788#L278-1 assume !false; 1961#L710 assume test_~splverifierCounter~0 < 4; 1735#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1736#L719 assume !(0 != test_~tmp~5); 1745#L719-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1746#L729 assume !(0 != test_~tmp___0~1); 1808#L729-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1697#L739 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1698#L747-2 assume !(0 != ~pumpRunning~0); 1681#L775 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 1682#L859 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret55, processEnvironment__wrappee__lowWaterSensor_~tmp~7;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7; 2021#L833-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2014#L807-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2012#L131-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2007#L136-3 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 2003#L961-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 2001#L961-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1720#L967-3 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 1721#L811-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1659#L782 havoc __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_#t~ret13, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1969#L91-1 __utac_acc__Specification3_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret11;havoc __utac_acc__Specification3_spec__1_#t~ret11; 1968#L272 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1967#L123 __utac_acc__Specification3_spec__1_#t~ret12 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret12;havoc __utac_acc__Specification3_spec__1_#t~ret12; 1964#L278 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1788#L278-1 [2019-11-19 22:28:57,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:57,893 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-19 22:28:57,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:57,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834544636] [2019-11-19 22:28:57,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:57,992 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:57,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:57,993 INFO L82 PathProgramCache]: Analyzing trace with hash 2100150183, now seen corresponding path program 1 times [2019-11-19 22:28:57,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:57,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494767510] [2019-11-19 22:28:57,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:58,025 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:58,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:58,026 INFO L82 PathProgramCache]: Analyzing trace with hash -359433907, now seen corresponding path program 1 times [2019-11-19 22:28:58,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:58,028 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381634809] [2019-11-19 22:28:58,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:58,142 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:58,305 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-11-19 22:28:58,412 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-11-19 22:29:27,213 WARN L191 SmtUtils]: Spent 28.79 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-19 22:29:41,611 WARN L191 SmtUtils]: Spent 14.40 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-19 22:29:41,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:29:41 BoogieIcfgContainer [2019-11-19 22:29:41,695 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:29:41,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:29:41,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:29:41,696 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:29:41,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:55" (3/4) ... [2019-11-19 22:29:41,700 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:29:41,763 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:29:41,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:29:41,766 INFO L168 Benchmark]: Toolchain (without parser) took 47953.78 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 334.5 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -254.1 MB). Peak memory consumption was 80.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:29:41,767 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:29:41,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:29:41,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.58 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. [2019-11-19 22:29:41,769 INFO L168 Benchmark]: Boogie Preprocessor took 80.49 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:29:41,769 INFO L168 Benchmark]: RCFGBuilder took 1211.65 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: 80.2 MB). Peak memory consumption was 80.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:29:41,770 INFO L168 Benchmark]: BuchiAutomizer took 45701.73 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -178.4 MB). Peak memory consumption was 372.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:29:41,771 INFO L168 Benchmark]: Witness Printer took 68.51 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:29:41,774 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 796.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.58 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. * Boogie Preprocessor took 80.49 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1211.65 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: 80.2 MB). Peak memory consumption was 80.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 45701.73 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -178.4 MB). Peak memory consumption was 372.2 MB. Max. memory is 11.5 GB. * Witness Printer took 68.51 ms. Allocated memory is still 1.4 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 386 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 45.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 44.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 270 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 386 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 818 SDtfs, 1302 SDslu, 1078 SDs, 0 SdLazy, 116 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 709]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=67} State at position 1 is {NULL=0, NULL=735, NULL=0, NULL=0, NULL=67, NULL=747, NULL=737, NULL=0, NULL=739, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4db7b80c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f23ca07=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@386c2c7b=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a49f8a0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55d308e5=0, tmp=0, NULL=732, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b0fb4bc=0, NULL=0, tmp___1=0, NULL=741, tmp=0, cleanupTimeShifts=4, NULL=750, NULL=749, waterLevel=1, NULL=0, NULL=753, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=0, retValue_acc=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=745, NULL=0, retValue_acc=0, NULL=0, tmp___0=0, tmp=1, NULL=756, NULL=733, NULL=743, head=0, NULL=0, tmp=0, NULL=748, retValue_acc=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=744, NULL=751, NULL=0, NULL=752, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29c7bea5=0, tmp=0, NULL=0, NULL=0, tmp___0=1, NULL=738, tmp=0, NULL=0, systemActive=1, NULL=742, \result=1, \result=0, NULL=746, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@149222d7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75590905=0, NULL=734, retValue_acc=1, NULL=754, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26f92909=0, NULL=740, tmp___2=54, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@abec368=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a7cc156=0, tmp___1=0, NULL=736, NULL=755} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L501] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L768] int pumpRunning = 0; [L769] int systemActive = 1; [L230] int retValue_acc ; [L231] int tmp ; [L323] int retValue_acc ; [L326] retValue_acc = 1 [L327] return (retValue_acc); [L237] tmp = valid_product() [L239] COND TRUE \read(tmp) [L700] int splverifierCounter ; [L701] int tmp ; [L702] int tmp___0 ; [L703] int tmp___1 ; [L704] int tmp___2 ; [L707] splverifierCounter = 0 Loop: [L709] COND TRUE 1 [L711] COND TRUE splverifierCounter < 4 [L717] tmp = __VERIFIER_nondet_int() [L719] COND FALSE !(\read(tmp)) [L727] tmp___0 = __VERIFIER_nondet_int() [L729] COND FALSE !(\read(tmp___0)) [L737] tmp___2 = __VERIFIER_nondet_int() [L739] COND TRUE \read(tmp___2) [L994] systemActive = 1 [L775] COND FALSE !(\read(pumpRunning)) [L782] COND TRUE \read(systemActive) [L856] int tmp ; [L859] COND FALSE !(\read(pumpRunning)) [L830] int tmp ; [L833] COND FALSE !(\read(pumpRunning)) [L804] int tmp ; [L807] COND TRUE ! pumpRunning [L953] int retValue_acc ; [L954] int tmp ; [L955] int tmp___0 ; [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] return (retValue_acc); [L959] tmp = isHighWaterSensorDry() [L961] COND TRUE \read(tmp) [L962] tmp___0 = 0 [L966] retValue_acc = tmp___0 [L967] return (retValue_acc); [L809] tmp = isHighWaterLevel() [L811] COND FALSE !(\read(tmp)) [L264] int tmp ; [L265] int tmp___0 ; [L266] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L270] tmp = isMethaneLevelCritical() [L272] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L276] tmp___0 = getWaterLevel() [L278] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...