./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product21.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_spec1_product21.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 41732c82c4e13eae07071a147bbd53c9191b35d7 ................................................................................................................................................................................................................................................................................................................................................................... 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 20:58:07,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:58:07,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:58:07,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:58:07,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:58:07,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:58:07,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:58:07,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:58:07,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:58:07,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:58:07,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:58:07,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:58:07,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:58:07,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:58:07,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:58:07,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:58:07,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:58:07,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:58:07,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:58:07,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:58:07,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:58:07,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:58:07,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:58:07,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:58:07,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:58:07,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:58:07,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:58:07,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:58:07,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:58:07,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:58:07,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:58:07,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:58:07,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:58:07,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:58:07,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:58:07,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:58:07,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:58:07,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:58:07,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:58:07,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:58:07,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:58:07,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:58:07,797 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:58:07,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:58:07,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:58:07,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:58:07,803 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:58:07,804 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:58:07,804 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:58:07,807 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:58:07,807 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:58:07,807 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:58:07,808 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:58:07,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:58:07,808 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:58:07,808 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:58:07,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:58:07,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:58:07,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:58:07,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:58:07,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:58:07,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:58:07,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:58:07,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:58:07,811 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:58:07,812 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:58:07,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:58:07,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:58:07,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:58:07,813 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:58:07,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:58:07,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:58:07,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:58:07,816 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:58:07,817 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:58:07,817 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 -> 41732c82c4e13eae07071a147bbd53c9191b35d7 [2019-11-28 20:58:08,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:58:08,147 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:58:08,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:58:08,151 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:58:08,152 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:58:08,152 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c [2019-11-28 20:58:08,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3068d7738/efd99e1372c547498577dfc1b1545df2/FLAG2e9601bce [2019-11-28 20:58:08,799 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:58:08,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c [2019-11-28 20:58:08,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3068d7738/efd99e1372c547498577dfc1b1545df2/FLAG2e9601bce [2019-11-28 20:58:09,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3068d7738/efd99e1372c547498577dfc1b1545df2 [2019-11-28 20:58:09,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:58:09,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:58:09,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:09,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:58:09,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:58:09,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5476b59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09, skipping insertion in model container [2019-11-28 20:58:09,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:58:09,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:58:09,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:09,636 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:58:09,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:09,771 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:58:09,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09 WrapperNode [2019-11-28 20:58:09,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:09,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:09,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:58:09,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:58:09,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:09,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:58:09,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:58:09,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:58:09,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:58:09,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:58:09,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:58:09,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:58:09,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (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 20:58:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:58:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:58:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:58:09,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:58:10,794 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:58:10,794 INFO L287 CfgBuilder]: Removed 156 assume(true) statements. [2019-11-28 20:58:10,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:10 BoogieIcfgContainer [2019-11-28 20:58:10,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:58:10,797 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:58:10,797 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:58:10,800 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:58:10,801 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:10,802 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:58:09" (1/3) ... [2019-11-28 20:58:10,803 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48da69f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:10, skipping insertion in model container [2019-11-28 20:58:10,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:10,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (2/3) ... [2019-11-28 20:58:10,804 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48da69f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:10, skipping insertion in model container [2019-11-28 20:58:10,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:10,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:10" (3/3) ... [2019-11-28 20:58:10,806 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product21.cil.c [2019-11-28 20:58:10,856 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:58:10,857 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:58:10,857 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:58:10,857 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:58:10,857 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:58:10,857 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:58:10,857 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:58:10,858 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:58:10,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states. [2019-11-28 20:58:10,900 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2019-11-28 20:58:10,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:10,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:10,908 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,908 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,908 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:58:10,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states. [2019-11-28 20:58:10,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2019-11-28 20:58:10,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:10,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:10,916 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,917 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,923 INFO L794 eck$LassoCheckResult]: Stem: 67#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~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 5#L-1true havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 3#L654true 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; 22#L662true main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 95#L525true assume 0 != main_~tmp~4; 69#L498true havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, 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; 25#L417-1true [2019-11-28 20:58:10,924 INFO L796 eck$LassoCheckResult]: Loop: 25#L417-1true assume !false; 45#L678true assume test_~splverifierCounter~0 < 4; 104#L679true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 17#L687true assume !(0 != test_~tmp~5); 4#L687-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 50#L697true assume !(0 != test_~tmp___0~1); 52#L697-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 76#L707true assume 0 != test_~tmp___2~0; 60#L713-2true assume !(0 != ~pumpRunning~0); 58#L741true assume !(0 != ~systemActive~0); 98#L748true havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 66#L586-1true __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 21#L417true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 25#L417-1true [2019-11-28 20:58:10,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:10,936 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:58:10,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:10,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327351653] [2019-11-28 20:58:10,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,318 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:11,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:11,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1680298494, now seen corresponding path program 1 times [2019-11-28 20:58:11,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:11,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563037144] [2019-11-28 20:58:11,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,348 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:11,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:11,350 INFO L82 PathProgramCache]: Analyzing trace with hash 33980444, now seen corresponding path program 1 times [2019-11-28 20:58:11,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:11,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299363322] [2019-11-28 20:58:11,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:58:11,565 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 20:58:11,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299363322] [2019-11-28 20:58:11,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:58:11,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:58:11,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79028769] [2019-11-28 20:58:11,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:58:11,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:58:11,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:58:11,708 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 6 states. [2019-11-28 20:58:11,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:58:11,867 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2019-11-28 20:58:11,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:58:11,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 142 transitions. [2019-11-28 20:58:11,877 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2019-11-28 20:58:11,885 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2019-11-28 20:58:11,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2019-11-28 20:58:11,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2019-11-28 20:58:11,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2019-11-28 20:58:11,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:58:11,889 INFO L688 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2019-11-28 20:58:11,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2019-11-28 20:58:11,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-11-28 20:58:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-11-28 20:58:11,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2019-11-28 20:58:11,928 INFO L711 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2019-11-28 20:58:11,928 INFO L591 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2019-11-28 20:58:11,928 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:58:11,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2019-11-28 20:58:11,931 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2019-11-28 20:58:11,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:11,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:11,932 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:11,933 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:11,933 INFO L794 eck$LassoCheckResult]: Stem: 269#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~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 230#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 224#L654 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; 225#L662 main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 259#L525 assume 0 != main_~tmp~4; 274#L498 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, 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; 257#L417-1 [2019-11-28 20:58:11,933 INFO L796 eck$LassoCheckResult]: Loop: 257#L417-1 assume !false; 262#L678 assume test_~splverifierCounter~0 < 4; 308#L679 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 250#L687 assume !(0 != test_~tmp~5); 222#L687-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 223#L697 assume !(0 != test_~tmp___0~1); 312#L697-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 286#L707 assume 0 != test_~tmp___2~0; 232#L713-2 assume !(0 != ~pumpRunning~0); 245#L741 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 316#L799 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret53, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 281#L773-1 assume !(0 != ~pumpRunning~0); 283#L748 havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 268#L586-1 __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 256#L417 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 257#L417-1 [2019-11-28 20:58:11,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:11,934 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 20:58:11,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:11,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742937613] [2019-11-28 20:58:11,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:12,056 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:12,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:12,056 INFO L82 PathProgramCache]: Analyzing trace with hash -2008522604, now seen corresponding path program 1 times [2019-11-28 20:58:12,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:12,057 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262617361] [2019-11-28 20:58:12,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:12,071 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:12,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:12,072 INFO L82 PathProgramCache]: Analyzing trace with hash 441062446, now seen corresponding path program 1 times [2019-11-28 20:58:12,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:12,073 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098483003] [2019-11-28 20:58:12,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:12,197 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:40,243 WARN L192 SmtUtils]: Spent 27.97 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 20:58:54,979 WARN L192 SmtUtils]: Spent 14.73 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 20:58:55,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:58:55 BoogieIcfgContainer [2019-11-28 20:58:55,066 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:58:55,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:58:55,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:58:55,068 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:58:55,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:10" (3/4) ... [2019-11-28 20:58:55,072 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:58:55,134 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:58:55,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:58:55,137 INFO L168 Benchmark]: Toolchain (without parser) took 46080.24 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 303.6 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -281.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:55,138 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:58:55,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:55,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.13 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 20:58:55,140 INFO L168 Benchmark]: Boogie Preprocessor took 46.41 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 20:58:55,142 INFO L168 Benchmark]: RCFGBuilder took 898.36 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:55,143 INFO L168 Benchmark]: BuchiAutomizer took 44269.80 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -188.4 MB). Peak memory consumption was 366.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:55,145 INFO L168 Benchmark]: Witness Printer took 68.27 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 20:58:55,151 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 714.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.13 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 46.41 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 898.36 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44269.80 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -188.4 MB). Peak memory consumption was 366.6 MB. Max. memory is 11.5 GB. * Witness Printer took 68.27 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 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 43.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 137 SDtfs, 418 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 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: 677]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6658} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=6658, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6109ee27=0, NULL=6659, NULL=0, NULL=0, NULL=0, NULL=6683, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16a12a28=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@620912bc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a81535f=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@695c83e5=0, NULL=0, NULL=0, tmp=0, NULL=6680, NULL=0, tmp=0, tmp___1=0, NULL=6672, NULL=6661, NULL=6675, tmp___0=0, NULL=6681, NULL=6664, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ea1e9fd=0, NULL=6676, NULL=6669, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=6666, NULL=0, NULL=0, NULL=6660, retValue_acc=0, NULL=0, \result=1, NULL=6671, head=0, pumpRunning=0, NULL=6668, \result=0, NULL=6677, tmp=1, NULL=0, tmp=0, NULL=0, NULL=6670, NULL=6665, NULL=6663, retValue_acc=1, NULL=0, tmp___2=64, NULL=6673, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73d31a3a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@152c7578=0, NULL=6682, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45f8bfee=0, head=0, NULL=0, NULL=6678, NULL=6662, NULL=0, NULL=6667, tmp=0, NULL=0, NULL=0, NULL=0, NULL=6679, NULL=6674} - 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; [L435] int cleanupTimeShifts = 4; [L543] int waterLevel = 1; [L544] int methaneLevelCritical = 0; [L734] int pumpRunning = 0; [L735] int systemActive = 1; [L516] int retValue_acc ; [L517] int tmp ; [L658] int retValue_acc ; [L661] retValue_acc = 1 [L662] return (retValue_acc); [L523] tmp = valid_product() [L525] COND TRUE \read(tmp) [L668] int splverifierCounter ; [L669] int tmp ; [L670] int tmp___0 ; [L671] int tmp___1 ; [L672] int tmp___2 ; [L675] splverifierCounter = 0 Loop: [L677] COND TRUE 1 [L679] COND TRUE splverifierCounter < 4 [L685] tmp = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp)) [L695] tmp___0 = __VERIFIER_nondet_int() [L697] COND FALSE !(\read(tmp___0)) [L705] tmp___2 = __VERIFIER_nondet_int() [L707] COND TRUE \read(tmp___2) [L741] COND FALSE !(\read(pumpRunning)) [L748] COND TRUE \read(systemActive) [L796] int tmp ; [L799] COND FALSE !(\read(pumpRunning)) [L770] int tmp ; [L773] COND FALSE !(\read(pumpRunning)) [L410] int tmp ; [L411] int tmp___0 ; [L582] int retValue_acc ; [L585] retValue_acc = methaneLevelCritical [L586] return (retValue_acc); [L415] tmp = isMethaneLevelCritical() [L417] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...