./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product27.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_spec2_product27.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 9c8016f452608c4941fa660b03ce7c0101dbbdf8 .................................................................................................................................................................................................................................................................................................................................................................... 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 21:02:11,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:02:11,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:02:11,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:02:11,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:02:11,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:02:11,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:02:11,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:02:11,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:02:11,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:02:11,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:02:11,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:02:11,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:02:11,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:02:11,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:02:11,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:02:11,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:02:11,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:02:11,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:02:11,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:02:11,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:02:11,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:02:11,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:02:11,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:02:11,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:02:11,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:02:11,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:02:11,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:02:11,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:02:11,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:02:11,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:02:11,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:02:11,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:02:11,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:02:11,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:02:11,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:02:11,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:02:11,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:02:11,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:02:11,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:02:11,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:02:11,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:02:11,844 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:02:11,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:02:11,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:02:11,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:02:11,847 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:02:11,847 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:02:11,848 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:02:11,848 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:02:11,848 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:02:11,848 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:02:11,850 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:02:11,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:02:11,850 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:02:11,851 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:02:11,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:02:11,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:02:11,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:02:11,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:02:11,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:02:11,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:02:11,853 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:02:11,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:02:11,853 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:02:11,854 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:02:11,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:02:11,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:02:11,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:02:11,855 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:02:11,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:02:11,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:02:11,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:02:11,857 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:02:11,859 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:02:11,859 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 -> 9c8016f452608c4941fa660b03ce7c0101dbbdf8 [2019-11-28 21:02:12,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:02:12,158 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:02:12,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:02:12,162 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:02:12,163 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:02:12,164 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c [2019-11-28 21:02:12,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a70608d7e/77162283725141629eb26e83064cfce0/FLAG57aeeba65 [2019-11-28 21:02:12,760 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:02:12,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c [2019-11-28 21:02:12,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a70608d7e/77162283725141629eb26e83064cfce0/FLAG57aeeba65 [2019-11-28 21:02:13,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a70608d7e/77162283725141629eb26e83064cfce0 [2019-11-28 21:02:13,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:02:13,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:02:13,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:02:13,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:02:13,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:02:13,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a3e0ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13, skipping insertion in model container [2019-11-28 21:02:13,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:02:13,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:02:13,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:02:13,532 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:02:13,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:02:13,662 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:02:13,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13 WrapperNode [2019-11-28 21:02:13,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:02:13,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:02:13,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:02:13,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:02:13,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:02:13,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:02:13,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:02:13,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:02:13,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (1/1) ... [2019-11-28 21:02:13,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:02:13,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:02:13,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:02:13,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:02:13,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (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 21:02:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:02:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:02:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:02:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:02:14,583 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:02:14,583 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-11-28 21:02:14,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:14 BoogieIcfgContainer [2019-11-28 21:02:14,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:02:14,586 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:02:14,586 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:02:14,590 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:02:14,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:14,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:02:13" (1/3) ... [2019-11-28 21:02:14,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16d5f7d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:02:14, skipping insertion in model container [2019-11-28 21:02:14,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:14,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:13" (2/3) ... [2019-11-28 21:02:14,593 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16d5f7d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:02:14, skipping insertion in model container [2019-11-28 21:02:14,593 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:14,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:14" (3/3) ... [2019-11-28 21:02:14,595 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product27.cil.c [2019-11-28 21:02:14,650 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:02:14,650 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:02:14,650 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:02:14,651 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:02:14,651 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:02:14,651 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:02:14,651 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:02:14,651 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:02:14,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-11-28 21:02:14,722 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:02:14,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:14,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:14,733 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:14,733 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:14,733 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:02:14,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-11-28 21:02:14,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:02:14,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:14,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:14,752 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:14,752 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:14,765 INFO L794 eck$LassoCheckResult]: Stem: 37#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~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 13#L-1true havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~6, main_~tmp~4;havoc main_~retValue_acc~6;havoc main_~tmp~4; 50#L736true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 56#L744true main_#t~ret47 := valid_product_#res;main_~tmp~4 := main_#t~ret47;havoc main_#t~ret47; 5#L632true assume 0 != main_~tmp~4; 41#L604true ~methAndRunningLastTime~0 := 0; 72#L415true havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 54#L426-1true [2019-11-28 21:02:14,769 INFO L796 eck$LassoCheckResult]: Loop: 54#L426-1true assume !false; 15#L658true assume test_~splverifierCounter~0 < 4; 38#L659true test_~tmp~5 := test_#t~nondet48;havoc test_#t~nondet48; 63#L667true assume !(0 != test_~tmp~5); 66#L667-1true test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; 44#L677true assume !(0 != test_~tmp___0~1); 24#L677-1true test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; 20#L687true assume 0 != test_~tmp___2~0; 52#L693-1true assume !(0 != ~pumpRunning~0); 49#L758true assume !(0 != ~systemActive~0); 40#L765true havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 17#L497true __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 70#L426true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 54#L426-1true [2019-11-28 21:02:14,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:14,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:02:14,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:14,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048575785] [2019-11-28 21:02:14,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:15,255 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:15,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:15,257 INFO L82 PathProgramCache]: Analyzing trace with hash 11187987, now seen corresponding path program 1 times [2019-11-28 21:02:15,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:15,258 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111965556] [2019-11-28 21:02:15,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:15,293 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:15,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:15,297 INFO L82 PathProgramCache]: Analyzing trace with hash 844484493, now seen corresponding path program 1 times [2019-11-28 21:02:15,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:15,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056281128] [2019-11-28 21:02:15,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:02:15,491 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 21:02:15,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056281128] [2019-11-28 21:02:15,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:02:15,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:02:15,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541477991] [2019-11-28 21:02:15,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:02:15,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:02:15,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:02:15,629 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 6 states. [2019-11-28 21:02:15,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:02:15,818 INFO L93 Difference]: Finished difference Result 202 states and 283 transitions. [2019-11-28 21:02:15,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:02:15,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202 states and 283 transitions. [2019-11-28 21:02:15,831 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 127 [2019-11-28 21:02:15,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202 states to 181 states and 262 transitions. [2019-11-28 21:02:15,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 181 [2019-11-28 21:02:15,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 181 [2019-11-28 21:02:15,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 181 states and 262 transitions. [2019-11-28 21:02:15,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:02:15,857 INFO L688 BuchiCegarLoop]: Abstraction has 181 states and 262 transitions. [2019-11-28 21:02:15,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states and 262 transitions. [2019-11-28 21:02:15,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 115. [2019-11-28 21:02:15,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-28 21:02:15,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 166 transitions. [2019-11-28 21:02:15,918 INFO L711 BuchiCegarLoop]: Abstraction has 115 states and 166 transitions. [2019-11-28 21:02:15,918 INFO L591 BuchiCegarLoop]: Abstraction has 115 states and 166 transitions. [2019-11-28 21:02:15,918 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:02:15,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states and 166 transitions. [2019-11-28 21:02:15,920 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2019-11-28 21:02:15,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:15,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:15,921 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:15,921 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:15,922 INFO L794 eck$LassoCheckResult]: Stem: 349#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~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 319#L-1 havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~6, main_~tmp~4;havoc main_~retValue_acc~6;havoc main_~tmp~4; 320#L736 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 355#L744 main_#t~ret47 := valid_product_#res;main_~tmp~4 := main_#t~ret47;havoc main_#t~ret47; 303#L632 assume 0 != main_~tmp~4; 304#L604 ~methAndRunningLastTime~0 := 0; 351#L415 havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 334#L426-1 [2019-11-28 21:02:15,922 INFO L796 eck$LassoCheckResult]: Loop: 334#L426-1 assume !false; 321#L658 assume test_~splverifierCounter~0 < 4; 322#L659 test_~tmp~5 := test_#t~nondet48;havoc test_#t~nondet48; 350#L667 assume !(0 != test_~tmp~5); 342#L667-1 test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; 352#L677 assume !(0 != test_~tmp___0~1); 335#L677-1 test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; 330#L687 assume 0 != test_~tmp___2~0; 332#L693-1 assume !(0 != ~pumpRunning~0); 308#L758 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 344#L790 assume !(0 != ~pumpRunning~0); 346#L765 havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 323#L497 __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 324#L426 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 334#L426-1 [2019-11-28 21:02:15,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:15,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:02:15,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:15,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624619379] [2019-11-28 21:02:15,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:16,016 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:16,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:16,017 INFO L82 PathProgramCache]: Analyzing trace with hash 319834497, now seen corresponding path program 1 times [2019-11-28 21:02:16,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:16,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558754920] [2019-11-28 21:02:16,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:16,034 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:16,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:16,034 INFO L82 PathProgramCache]: Analyzing trace with hash 382222407, now seen corresponding path program 1 times [2019-11-28 21:02:16,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:16,035 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031298110] [2019-11-28 21:02:16,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:16,169 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:42,353 WARN L192 SmtUtils]: Spent 26.07 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:02:55,247 WARN L192 SmtUtils]: Spent 12.87 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:02:55,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:02:55 BoogieIcfgContainer [2019-11-28 21:02:55,311 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:02:55,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:02:55,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:02:55,312 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:02:55,313 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:14" (3/4) ... [2019-11-28 21:02:55,316 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:02:55,376 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:02:55,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:02:55,379 INFO L168 Benchmark]: Toolchain (without parser) took 42324.98 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 305.7 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -270.4 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:55,379 INFO L168 Benchmark]: CDTParser took 0.20 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. [2019-11-28 21:02:55,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:55,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.51 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:55,381 INFO L168 Benchmark]: Boogie Preprocessor took 42.39 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 21:02:55,382 INFO L168 Benchmark]: RCFGBuilder took 796.23 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: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:55,383 INFO L168 Benchmark]: BuchiAutomizer took 40725.79 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -164.8 MB). Peak memory consumption was 375.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:55,384 INFO L168 Benchmark]: Witness Printer took 65.21 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:55,388 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 608.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.51 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.39 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 796.23 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: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40725.79 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -164.8 MB). Peak memory consumption was 375.9 MB. Max. memory is 11.5 GB. * Witness Printer took 65.21 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 115 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 40.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 66 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 115 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 397 SDslu, 566 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 657]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3096} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1895f621=0, NULL=0, NULL=0, NULL=0, NULL=3096, NULL=21012, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c62c804=0, NULL=21009, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37b2857d=0, NULL=0, retValue_acc=0, NULL=0, NULL=21017, NULL=21013, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e8cc1d2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e64e264=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ec7834e=0, NULL=0, NULL=0, tmp=0, NULL=0, tmp___1=0, NULL=3099, NULL=21934, NULL=21007, NULL=21008, cleanupTimeShifts=4, NULL=21936, NULL=21016, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=21010, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=21015, NULL=0, \result=1, NULL=21932, head=0, pumpRunning=0, NULL=21014, \result=0, NULL=21005, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37d1ec2c=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22189232=0, NULL=21011, NULL=11806, NULL=21004, retValue_acc=1, NULL=0, tmp___2=55, NULL=21018, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=3097, head=0, NULL=0, NULL=11808, tmp=0, NULL=21933, NULL=0, NULL=21935, NULL=0, NULL=0, NULL=21006, tmp=0, NULL=11807} - 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 methAndRunningLastTime ; [L454] int waterLevel = 1; [L455] int methaneLevelCritical = 0; [L543] int cleanupTimeShifts = 4; [L751] int pumpRunning = 0; [L752] int systemActive = 1; [L623] int retValue_acc ; [L624] int tmp ; [L740] int retValue_acc ; [L743] retValue_acc = 1 [L744] return (retValue_acc); [L630] tmp = valid_product() [L632] COND TRUE \read(tmp) [L414] methAndRunningLastTime = 0 [L648] int splverifierCounter ; [L649] int tmp ; [L650] int tmp___0 ; [L651] int tmp___1 ; [L652] int tmp___2 ; [L655] splverifierCounter = 0 Loop: [L657] COND TRUE 1 [L659] COND TRUE splverifierCounter < 4 [L665] tmp = __VERIFIER_nondet_int() [L667] COND FALSE !(\read(tmp)) [L675] tmp___0 = __VERIFIER_nondet_int() [L677] COND FALSE !(\read(tmp___0)) [L685] tmp___2 = __VERIFIER_nondet_int() [L687] COND TRUE \read(tmp___2) [L758] COND FALSE !(\read(pumpRunning)) [L765] COND TRUE \read(systemActive) [L787] int tmp ; [L790] COND FALSE !(\read(pumpRunning)) [L419] int tmp ; [L420] int tmp___0 ; [L493] int retValue_acc ; [L496] retValue_acc = methaneLevelCritical [L497] return (retValue_acc); [L424] tmp = isMethaneLevelCritical() [L426] COND FALSE !(\read(tmp)) [L442] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...