./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product16.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_spec5_product16.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 6e1f2dc26efb42c99cbde86e46132dc40752e9dc ................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:12:32,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:12:32,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:12:32,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:12:32,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:12:32,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:12:32,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:12:32,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:12:32,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:12:32,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:12:32,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:12:32,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:12:32,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:12:32,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:12:32,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:12:32,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:12:32,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:12:32,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:12:32,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:12:32,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:12:32,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:12:32,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:12:32,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:12:32,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:12:32,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:12:32,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:12:32,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:12:32,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:12:32,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:12:32,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:12:32,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:12:32,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:12:32,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:12:32,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:12:32,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:12:32,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:12:32,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:12:32,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:12:32,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:12:32,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:12:32,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:12:32,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:12:32,671 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:12:32,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:12:32,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:12:32,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:12:32,674 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:12:32,675 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:12:32,675 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:12:32,675 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:12:32,675 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:12:32,676 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:12:32,677 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:12:32,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:12:32,677 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:12:32,678 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:12:32,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:12:32,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:12:32,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:12:32,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:12:32,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:12:32,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:12:32,680 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:12:32,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:12:32,681 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:12:32,681 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:12:32,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:12:32,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:12:32,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:12:32,682 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:12:32,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:12:32,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:12:32,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:12:32,684 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:12:32,686 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:12:32,686 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 -> 6e1f2dc26efb42c99cbde86e46132dc40752e9dc [2019-11-28 21:12:32,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:12:33,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:12:33,004 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:12:33,006 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:12:33,006 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:12:33,007 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2019-11-28 21:12:33,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41710fd11/c8a9fee6f1c14238837948e472e57577/FLAG740c6bff9 [2019-11-28 21:12:33,610 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:12:33,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2019-11-28 21:12:33,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41710fd11/c8a9fee6f1c14238837948e472e57577/FLAG740c6bff9 [2019-11-28 21:12:33,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41710fd11/c8a9fee6f1c14238837948e472e57577 [2019-11-28 21:12:33,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:12:33,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:12:33,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:33,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:12:33,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:12:33,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:33" (1/1) ... [2019-11-28 21:12:33,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67981a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:33, skipping insertion in model container [2019-11-28 21:12:33,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:33" (1/1) ... [2019-11-28 21:12:33,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:12:33,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:12:34,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:34,468 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:12:34,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:34,579 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:12:34,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34 WrapperNode [2019-11-28 21:12:34,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:34,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:34,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:12:34,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:12:34,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (1/1) ... [2019-11-28 21:12:34,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (1/1) ... [2019-11-28 21:12:34,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:34,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:12:34,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:12:34,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:12:34,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (1/1) ... [2019-11-28 21:12:34,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (1/1) ... [2019-11-28 21:12:34,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (1/1) ... [2019-11-28 21:12:34,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (1/1) ... [2019-11-28 21:12:34,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (1/1) ... [2019-11-28 21:12:34,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (1/1) ... [2019-11-28 21:12:34,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (1/1) ... [2019-11-28 21:12:34,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:12:34,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:12:34,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:12:34,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:12:34,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (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 21:12:34,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:12:34,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:12:34,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:12:34,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:12:35,628 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:12:35,628 INFO L287 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-28 21:12:35,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:35 BoogieIcfgContainer [2019-11-28 21:12:35,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:12:35,631 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:12:35,631 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:12:35,635 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:12:35,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:35,636 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:12:33" (1/3) ... [2019-11-28 21:12:35,638 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dec3d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:35, skipping insertion in model container [2019-11-28 21:12:35,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:35,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:34" (2/3) ... [2019-11-28 21:12:35,640 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dec3d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:35, skipping insertion in model container [2019-11-28 21:12:35,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:35,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:35" (3/3) ... [2019-11-28 21:12:35,643 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product16.cil.c [2019-11-28 21:12:35,684 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:12:35,684 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:12:35,684 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:12:35,684 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:12:35,685 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:12:35,685 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:12:35,685 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:12:35,685 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:12:35,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2019-11-28 21:12:35,733 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:12:35,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:35,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:35,741 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:35,741 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:35,742 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:12:35,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2019-11-28 21:12:35,748 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:12:35,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:35,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:35,749 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:35,749 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:35,754 INFO L794 eck$LassoCheckResult]: Stem: 20#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);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~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 5#L-1true havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 6#L585true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 26#L593true main_#t~ret38 := valid_product_#res;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 30#L549true assume 0 != main_~tmp~4; 41#L521true ~switchedOnBeforeTS~0 := 0; 73#L415true havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 21#L436-1true [2019-11-28 21:12:35,755 INFO L796 eck$LassoCheckResult]: Loop: 21#L436-1true assume !false; 14#L801true assume test_~splverifierCounter~0 < 4; 36#L802true test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 72#L810true assume !(0 != test_~tmp~7); 42#L810-1true test_~tmp___0~1 := test_#t~nondet60;havoc test_#t~nondet60; 16#L820true assume !(0 != test_~tmp___0~1); 22#L820-1true test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 7#L830true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 31#L838-1true havoc __utac_acc__Specification5_spec__2_#t~ret35;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 68#L726true __utac_acc__Specification5_spec__2_#t~ret35 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret35;havoc __utac_acc__Specification5_spec__2_#t~ret35; 19#L425true assume !(0 != ~pumpRunning~0); 75#L624true assume !(0 != ~systemActive~0); 64#L631true havoc __utac_acc__Specification5_spec__3_#t~ret36, __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 50#L934true __utac_acc__Specification5_spec__3_#t~ret36 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret36;havoc __utac_acc__Specification5_spec__3_#t~ret36; 17#L436true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 21#L436-1true [2019-11-28 21:12:35,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:35,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:12:35,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:35,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883422990] [2019-11-28 21:12:35,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:36,224 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:36,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:36,226 INFO L82 PathProgramCache]: Analyzing trace with hash 674918198, now seen corresponding path program 1 times [2019-11-28 21:12:36,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:36,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010031319] [2019-11-28 21:12:36,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:12:36,286 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 21:12:36,287 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010031319] [2019-11-28 21:12:36,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:12:36,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:12:36,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209178599] [2019-11-28 21:12:36,295 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:12:36,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:12:36,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:12:36,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:12:36,318 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 3 states. [2019-11-28 21:12:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:12:36,409 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2019-11-28 21:12:36,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:12:36,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 203 transitions. [2019-11-28 21:12:36,419 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2019-11-28 21:12:36,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 133 states and 188 transitions. [2019-11-28 21:12:36,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2019-11-28 21:12:36,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2019-11-28 21:12:36,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 188 transitions. [2019-11-28 21:12:36,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:12:36,432 INFO L688 BuchiCegarLoop]: Abstraction has 133 states and 188 transitions. [2019-11-28 21:12:36,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 188 transitions. [2019-11-28 21:12:36,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2019-11-28 21:12:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-11-28 21:12:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2019-11-28 21:12:36,477 INFO L711 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2019-11-28 21:12:36,478 INFO L591 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2019-11-28 21:12:36,478 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:12:36,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 185 transitions. [2019-11-28 21:12:36,481 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2019-11-28 21:12:36,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:36,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:36,482 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:36,483 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:36,483 INFO L794 eck$LassoCheckResult]: Stem: 264#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);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~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 237#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 238#L585 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 239#L593 main_#t~ret38 := valid_product_#res;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 274#L549 assume 0 != main_~tmp~4; 279#L521 ~switchedOnBeforeTS~0 := 0; 292#L415 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 257#L436-1 [2019-11-28 21:12:36,483 INFO L796 eck$LassoCheckResult]: Loop: 257#L436-1 assume !false; 249#L801 assume test_~splverifierCounter~0 < 4; 250#L802 test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 287#L810 assume !(0 != test_~tmp~7); 234#L810-1 test_~tmp___0~1 := test_#t~nondet60;havoc test_#t~nondet60; 254#L820 assume !(0 != test_~tmp___0~1); 244#L820-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 240#L830 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 242#L838-1 havoc __utac_acc__Specification5_spec__2_#t~ret35;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 280#L726 __utac_acc__Specification5_spec__2_#t~ret35 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret35;havoc __utac_acc__Specification5_spec__2_#t~ret35; 261#L425 assume !(0 != ~pumpRunning~0); 262#L624 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 296#L656 assume !(0 != ~pumpRunning~0); 291#L631 havoc __utac_acc__Specification5_spec__3_#t~ret36, __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 295#L934 __utac_acc__Specification5_spec__3_#t~ret36 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret36;havoc __utac_acc__Specification5_spec__3_#t~ret36; 255#L436 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 257#L436-1 [2019-11-28 21:12:36,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:36,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:12:36,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:36,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992460842] [2019-11-28 21:12:36,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:36,664 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:36,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:36,667 INFO L82 PathProgramCache]: Analyzing trace with hash -572900797, now seen corresponding path program 1 times [2019-11-28 21:12:36,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:36,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669936944] [2019-11-28 21:12:36,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:36,689 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:36,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:36,691 INFO L82 PathProgramCache]: Analyzing trace with hash -747661431, now seen corresponding path program 1 times [2019-11-28 21:12:36,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:36,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828986180] [2019-11-28 21:12:36,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:12:36,809 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 21:12:36,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828986180] [2019-11-28 21:12:36,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:12:36,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:12:36,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114244533] [2019-11-28 21:12:36,923 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-11-28 21:12:36,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:12:36,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:12:36,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:12:36,988 INFO L87 Difference]: Start difference. First operand 131 states and 185 transitions. cyclomatic complexity: 57 Second operand 5 states. [2019-11-28 21:12:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:12:37,174 INFO L93 Difference]: Finished difference Result 356 states and 495 transitions. [2019-11-28 21:12:37,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:12:37,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 356 states and 495 transitions. [2019-11-28 21:12:37,183 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2019-11-28 21:12:37,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 356 states to 356 states and 495 transitions. [2019-11-28 21:12:37,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2019-11-28 21:12:37,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2019-11-28 21:12:37,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 495 transitions. [2019-11-28 21:12:37,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:12:37,201 INFO L688 BuchiCegarLoop]: Abstraction has 356 states and 495 transitions. [2019-11-28 21:12:37,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 495 transitions. [2019-11-28 21:12:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 255. [2019-11-28 21:12:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2019-11-28 21:12:37,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 349 transitions. [2019-11-28 21:12:37,247 INFO L711 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2019-11-28 21:12:37,249 INFO L591 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2019-11-28 21:12:37,249 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:12:37,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 349 transitions. [2019-11-28 21:12:37,258 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2019-11-28 21:12:37,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:37,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:37,259 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:37,263 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:37,263 INFO L794 eck$LassoCheckResult]: Stem: 768#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);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~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 740#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 741#L585 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 742#L593 main_#t~ret38 := valid_product_#res;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 779#L549 assume 0 != main_~tmp~4; 785#L521 ~switchedOnBeforeTS~0 := 0; 799#L415 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 828#L436-1 [2019-11-28 21:12:37,263 INFO L796 eck$LassoCheckResult]: Loop: 828#L436-1 assume !false; 883#L801 assume test_~splverifierCounter~0 < 4; 882#L802 test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 881#L810 assume !(0 != test_~tmp~7); 880#L810-1 test_~tmp___0~1 := test_#t~nondet60;havoc test_#t~nondet60; 879#L820 assume !(0 != test_~tmp___0~1); 877#L820-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 876#L830 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 868#L838-1 havoc __utac_acc__Specification5_spec__2_#t~ret35;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 901#L726 __utac_acc__Specification5_spec__2_#t~ret35 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret35;havoc __utac_acc__Specification5_spec__2_#t~ret35; 900#L425 assume !(0 != ~pumpRunning~0); 898#L624 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 894#L656 assume !(0 != ~pumpRunning~0); 890#L631 havoc __utac_acc__Specification5_spec__3_#t~ret36, __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 889#L934 __utac_acc__Specification5_spec__3_#t~ret36 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret36;havoc __utac_acc__Specification5_spec__3_#t~ret36; 888#L436 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 887#L726-1 __utac_acc__Specification5_spec__3_#t~ret37 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 885#L440 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 828#L436-1 [2019-11-28 21:12:37,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:37,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:12:37,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:37,265 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942931318] [2019-11-28 21:12:37,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,380 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:37,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:37,382 INFO L82 PathProgramCache]: Analyzing trace with hash -801866082, now seen corresponding path program 1 times [2019-11-28 21:12:37,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:37,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881896684] [2019-11-28 21:12:37,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,413 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:37,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:37,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1243110812, now seen corresponding path program 1 times [2019-11-28 21:12:37,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:37,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015667886] [2019-11-28 21:12:37,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,511 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:37,619 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-11-28 21:13:07,480 WARN L192 SmtUtils]: Spent 29.79 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:13:21,880 WARN L192 SmtUtils]: Spent 14.39 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:13:21,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:13:21 BoogieIcfgContainer [2019-11-28 21:13:21,968 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:13:21,968 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:13:21,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:13:21,969 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:13:21,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:35" (3/4) ... [2019-11-28 21:13:21,975 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:13:22,056 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:13:22,056 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:13:22,058 INFO L168 Benchmark]: Toolchain (without parser) took 48140.90 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 310.4 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -196.0 MB). Peak memory consumption was 114.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:22,059 INFO L168 Benchmark]: CDTParser took 0.26 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 21:13:22,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:22,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.52 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:22,062 INFO L168 Benchmark]: Boogie Preprocessor took 39.96 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 21:13:22,062 INFO L168 Benchmark]: RCFGBuilder took 925.95 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: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:22,063 INFO L168 Benchmark]: BuchiAutomizer took 46337.03 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -92.2 MB). Peak memory consumption was 370.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:22,063 INFO L168 Benchmark]: Witness Printer took 87.97 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 21:13:22,067 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 661.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.52 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.96 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 925.95 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: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46337.03 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -92.2 MB). Peak memory consumption was 370.8 MB. Max. memory is 11.5 GB. * Witness Printer took 87.97 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 5 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 45.7s. 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, 103 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 255 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 259 SDtfs, 404 SDslu, 387 SDs, 0 SdLazy, 77 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 800]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9479} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=9479, NULL=9484, retValue_acc=0, NULL=0, NULL=12276, NULL=12271, NULL=12267, methaneLevelCritical=0, tmp=1, NULL=0, NULL=0, tmp=0, NULL=9492, tmp___1=0, NULL=9489, NULL=12275, NULL=9488, NULL=9493, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ae07cfb=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@144d3e5e=0, switchedOnBeforeTS=0, NULL=9485, NULL=9494, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7afb8c6c=0, NULL=12274, NULL=9487, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, \result=1, NULL=9480, head=0, pumpRunning=0, \result=0, NULL=12273, NULL=9490, tmp=1, NULL=0, NULL=12269, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d3c3e=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64b269d0=0, retValue_acc=1, NULL=12268, NULL=9481, NULL=0, retValue_acc=1, tmp___2=57, NULL=9486, tmp___0=0, splverifierCounter=0, NULL=12270, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@728ec1ba=0, head=0, NULL=0, tmp=0, NULL=9491, NULL=9483, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e5fad3=0, NULL=9482, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19916179=57, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5055cf00=0, NULL=0, NULL=12272, NULL=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L409] int switchedOnBeforeTS ; [L458] int cleanupTimeShifts = 4; [L614] int pumpRunning = 0; [L615] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; [L540] int retValue_acc ; [L541] int tmp ; [L589] int retValue_acc ; [L592] retValue_acc = 1 [L593] return (retValue_acc); [L547] tmp = valid_product() [L549] COND TRUE \read(tmp) [L414] switchedOnBeforeTS = 0 [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___2) [L785] systemActive = 1 [L722] int retValue_acc ; [L725] retValue_acc = pumpRunning [L726] return (retValue_acc); [L423] switchedOnBeforeTS = isPumpRunning() [L624] COND FALSE !(\read(pumpRunning)) [L631] COND TRUE \read(systemActive) [L653] int tmp ; [L656] COND FALSE !(\read(pumpRunning)) [L429] int tmp ; [L430] int tmp___0 ; [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] return (retValue_acc); [L434] tmp = getWaterLevel() [L436] COND TRUE tmp != 2 [L722] int retValue_acc ; [L725] retValue_acc = pumpRunning [L726] return (retValue_acc); [L438] tmp___0 = isPumpRunning() [L440] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...