./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_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_spec1_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 b49fd66662c490ea81dc99d4f21b657b1bc3f920 ................................................................................................................................................................................................................................................................................................................................................................. 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 20:58:28,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:58:28,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:58:28,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:58:28,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:58:28,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:58:28,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:58:28,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:58:28,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:58:28,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:58:28,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:58:28,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:58:28,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:58:28,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:58:28,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:58:28,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:58:28,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:58:28,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:58:28,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:58:28,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:58:28,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:58:28,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:58:28,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:58:28,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:58:28,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:58:28,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:58:28,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:58:28,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:58:28,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:58:28,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:58:28,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:58:28,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:58:28,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:58:28,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:58:28,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:58:28,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:58:28,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:58:28,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:58:28,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:58:28,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:58:28,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:58:28,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:58:28,818 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:58:28,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:58:28,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:58:28,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:58:28,823 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:58:28,823 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:58:28,824 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:58:28,824 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:58:28,824 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:58:28,824 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:58:28,824 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:58:28,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:58:28,825 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:58:28,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:58:28,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:58:28,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:58:28,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:58:28,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:58:28,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:58:28,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:58:28,829 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:58:28,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:58:28,829 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:58:28,829 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:58:28,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:58:28,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:58:28,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:58:28,830 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:58:28,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:58:28,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:58:28,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:58:28,832 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:58:28,834 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:58:28,835 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 -> b49fd66662c490ea81dc99d4f21b657b1bc3f920 [2019-11-28 20:58:29,149 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:58:29,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:58:29,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:58:29,168 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:58:29,168 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:58:29,169 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c [2019-11-28 20:58:29,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c1e703f/cdd7283b8d8647f6a4fcfa3301eace2c/FLAG02e734df7 [2019-11-28 20:58:29,788 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:58:29,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c [2019-11-28 20:58:29,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c1e703f/cdd7283b8d8647f6a4fcfa3301eace2c/FLAG02e734df7 [2019-11-28 20:58:30,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c1e703f/cdd7283b8d8647f6a4fcfa3301eace2c [2019-11-28 20:58:30,086 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:58:30,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:58:30,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:30,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:58:30,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:58:30,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30, skipping insertion in model container [2019-11-28 20:58:30,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:58:30,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:58:30,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:30,579 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:58:30,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:30,774 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:58:30,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30 WrapperNode [2019-11-28 20:58:30,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:30,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:30,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:58:30,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:58:30,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:30,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:58:30,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:58:30,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:58:30,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (1/1) ... [2019-11-28 20:58:30,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:58:30,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:58:30,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:58:30,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:58:30,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (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 20:58:30,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:58:30,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:58:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:58:30,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:58:31,732 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:58:31,732 INFO L287 CfgBuilder]: Removed 100 assume(true) statements. [2019-11-28 20:58:31,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:31 BoogieIcfgContainer [2019-11-28 20:58:31,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:58:31,736 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:58:31,736 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:58:31,740 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:58:31,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:31,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:58:30" (1/3) ... [2019-11-28 20:58:31,742 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d4bc20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:31, skipping insertion in model container [2019-11-28 20:58:31,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:31,743 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:30" (2/3) ... [2019-11-28 20:58:31,743 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d4bc20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:31, skipping insertion in model container [2019-11-28 20:58:31,743 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:31,743 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:31" (3/3) ... [2019-11-28 20:58:31,745 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product27.cil.c [2019-11-28 20:58:31,800 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:58:31,800 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:58:31,800 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:58:31,801 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:58:31,801 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:58:31,801 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:58:31,801 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:58:31,802 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:58:31,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-28 20:58:31,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 20:58:31,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:31,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:31,851 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:31,851 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:31,851 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:58:31,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-28 20:58:31,858 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 20:58:31,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:31,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:31,859 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:31,859 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:31,864 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 12#L-1true havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 13#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 11#L73true main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 65#L295true assume 0 != main_~tmp~1; 19#L271true 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; 69#L192-1true [2019-11-28 20:58:31,865 INFO L796 eck$LassoCheckResult]: Loop: 69#L192-1true assume !false; 18#L687true assume test_~splverifierCounter~0 < 4; 33#L688true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 37#L696true assume !(0 != test_~tmp~5); 40#L696-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 21#L706true assume !(0 != test_~tmp___0~1); 23#L706-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 7#L716true assume 0 != test_~tmp___2~0; 53#L722-1true assume !(0 != ~pumpRunning~0); 74#L752true assume !(0 != ~systemActive~0); 64#L759true havoc __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 47#L137true __utac_acc__Specification1_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; 71#L192true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 69#L192-1true [2019-11-28 20:58:31,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:31,871 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:58:31,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:31,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857283516] [2019-11-28 20:58:31,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:32,329 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:32,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095029, now seen corresponding path program 1 times [2019-11-28 20:58:32,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:32,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395993078] [2019-11-28 20:58:32,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:32,368 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:32,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:32,373 INFO L82 PathProgramCache]: Analyzing trace with hash 41183909, now seen corresponding path program 1 times [2019-11-28 20:58:32,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:32,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822065937] [2019-11-28 20:58:32,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:58:32,518 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 20:58:32,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822065937] [2019-11-28 20:58:32,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:58:32,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:58:32,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304960953] [2019-11-28 20:58:32,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:58:32,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:58:32,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:58:32,634 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 6 states. [2019-11-28 20:58:32,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:58:32,885 INFO L93 Difference]: Finished difference Result 192 states and 264 transitions. [2019-11-28 20:58:32,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:58:32,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 192 states and 264 transitions. [2019-11-28 20:58:32,909 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 121 [2019-11-28 20:58:32,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 192 states to 171 states and 243 transitions. [2019-11-28 20:58:32,929 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2019-11-28 20:58:32,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2019-11-28 20:58:32,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 243 transitions. [2019-11-28 20:58:32,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:58:32,938 INFO L688 BuchiCegarLoop]: Abstraction has 171 states and 243 transitions. [2019-11-28 20:58:32,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 243 transitions. [2019-11-28 20:58:32,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 108. [2019-11-28 20:58:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-28 20:58:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2019-11-28 20:58:32,998 INFO L711 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2019-11-28 20:58:32,998 INFO L591 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2019-11-28 20:58:32,999 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:58:32,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states and 153 transitions. [2019-11-28 20:58:33,004 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2019-11-28 20:58:33,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:33,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:33,007 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:33,007 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:33,007 INFO L794 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 303#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 304#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 301#L73 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 302#L295 assume 0 != main_~tmp~1; 312#L271 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; 313#L192-1 [2019-11-28 20:58:33,009 INFO L796 eck$LassoCheckResult]: Loop: 313#L192-1 assume !false; 309#L687 assume test_~splverifierCounter~0 < 4; 310#L688 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 325#L696 assume !(0 != test_~tmp~5); 333#L696-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 317#L706 assume !(0 != test_~tmp___0~1); 289#L706-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 294#L716 assume 0 != test_~tmp___2~0; 295#L722-1 assume !(0 != ~pumpRunning~0); 346#L752 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 347#L784 assume !(0 != ~pumpRunning~0); 341#L759 havoc __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 339#L137 __utac_acc__Specification1_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; 340#L192 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 313#L192-1 [2019-11-28 20:58:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:33,009 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 20:58:33,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:33,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365514473] [2019-11-28 20:58:33,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:33,162 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:33,164 INFO L82 PathProgramCache]: Analyzing trace with hash -353331269, now seen corresponding path program 1 times [2019-11-28 20:58:33,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:33,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920293804] [2019-11-28 20:58:33,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:33,185 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:33,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708257, now seen corresponding path program 1 times [2019-11-28 20:58:33,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:33,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57483399] [2019-11-28 20:58:33,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:33,325 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:01,770 WARN L192 SmtUtils]: Spent 28.35 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 20:59:15,242 WARN L192 SmtUtils]: Spent 13.47 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 20:59:15,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:59:15 BoogieIcfgContainer [2019-11-28 20:59:15,330 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:59:15,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:59:15,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:59:15,331 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:59:15,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:31" (3/4) ... [2019-11-28 20:59:15,334 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:59:15,392 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:59:15,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:59:15,394 INFO L168 Benchmark]: Toolchain (without parser) took 45306.98 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 280.5 MB). Free memory was 952.3 MB in the beginning and 790.9 MB in the end (delta: 161.4 MB). Peak memory consumption was 441.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:15,395 INFO L168 Benchmark]: CDTParser took 0.16 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 20:59:15,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -124.7 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:15,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:15,397 INFO L168 Benchmark]: Boogie Preprocessor took 39.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:59:15,398 INFO L168 Benchmark]: RCFGBuilder took 832.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:15,399 INFO L168 Benchmark]: BuchiAutomizer took 43594.81 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.0 GB in the beginning and 799.5 MB in the end (delta: 211.2 MB). Peak memory consumption was 403.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:15,400 INFO L168 Benchmark]: Witness Printer took 61.65 ms. Allocated memory is still 1.3 GB. Free memory was 799.5 MB in the beginning and 790.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:15,407 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 687.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -124.7 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 832.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43594.81 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.0 GB in the beginning and 799.5 MB in the end (delta: 211.2 MB). Peak memory consumption was 403.3 MB. Max. memory is 11.5 GB. * Witness Printer took 61.65 ms. Allocated memory is still 1.3 GB. Free memory was 799.5 MB in the beginning and 790.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 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 108 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 43.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 43.0s. Construction of modules took 0.1s. 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, 63 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 108 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 98 SDtfs, 370 SDslu, 524 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 686]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8011} State at position 1 is {NULL=0, NULL=30564, NULL=0, NULL=0, NULL=8011, NULL=30563, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70d65468=0, NULL=11844, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=11846, NULL=0, NULL=0, methaneLevelCritical=0, NULL=11843, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f7ba8d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15360a6e=50, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@573c2ae=0, NULL=30562, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b059a0c=0, NULL=0, NULL=0, tmp=0, NULL=22350, NULL=22357, NULL=0, NULL=22356, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=22358, cleanupTimeShifts=4, NULL=22348, NULL=11841, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ded4af0=0, NULL=22359, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a612409=0, NULL=0, systemActive=1, waterLevel=1, NULL=11845, NULL=0, retValue_acc=0, NULL=0, NULL=20840, NULL=0, NULL=22352, \result=1, head=0, pumpRunning=0, NULL=30565, \result=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=22353, tmp=0, NULL=11847, NULL=22351, NULL=0, retValue_acc=1, tmp___2=50, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bfcb4ab=0, splverifierCounter=0, NULL=0, \result=0, NULL=8012, NULL=22349, head=0, tmp=0, NULL=22354, NULL=0, NULL=11842, NULL=22355} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L210] int cleanupTimeShifts = 4; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L745] int pumpRunning = 0; [L746] int systemActive = 1; [L286] int retValue_acc ; [L287] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L293] tmp = valid_product() [L295] COND TRUE \read(tmp) [L677] int splverifierCounter ; [L678] int tmp ; [L679] int tmp___0 ; [L680] int tmp___1 ; [L681] int tmp___2 ; [L684] splverifierCounter = 0 Loop: [L686] COND TRUE 1 [L688] COND TRUE splverifierCounter < 4 [L694] tmp = __VERIFIER_nondet_int() [L696] COND FALSE !(\read(tmp)) [L704] tmp___0 = __VERIFIER_nondet_int() [L706] COND FALSE !(\read(tmp___0)) [L714] tmp___2 = __VERIFIER_nondet_int() [L716] COND TRUE \read(tmp___2) [L752] COND FALSE !(\read(pumpRunning)) [L759] COND TRUE \read(systemActive) [L781] int tmp ; [L784] COND FALSE !(\read(pumpRunning)) [L185] int tmp ; [L186] int tmp___0 ; [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...