./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97e1e79d9f040fa1d57b96c793652004756593a5 ........................................................................................................................................................................................................................................................................................................................................................... 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 20:58:02,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:58:02,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:58:02,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:58:02,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:58:02,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:58:02,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:58:02,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:58:02,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:58:02,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:58:02,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:58:02,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:58:02,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:58:02,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:58:02,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:58:02,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:58:02,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:58:02,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:58:02,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:58:02,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:58:02,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:58:02,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:58:02,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:58:02,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:58:02,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:58:02,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:58:02,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:58:02,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:58:02,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:58:02,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:58:02,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:58:02,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:58:02,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:58:02,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:58:02,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:58:02,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:58:02,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:58:02,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:58:02,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:58:02,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:58:02,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:58:02,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:58:02,127 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:58:02,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:58:02,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:58:02,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:58:02,129 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:58:02,129 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:58:02,129 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:58:02,129 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:58:02,130 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:58:02,130 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:58:02,130 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:58:02,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:58:02,131 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:58:02,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:58:02,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:58:02,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:58:02,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:58:02,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:58:02,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:58:02,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:58:02,132 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:58:02,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:58:02,133 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:58:02,133 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:58:02,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:58:02,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:58:02,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:58:02,134 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:58:02,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:58:02,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:58:02,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:58:02,135 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:58:02,136 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:58:02,136 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 -> 97e1e79d9f040fa1d57b96c793652004756593a5 [2019-11-28 20:58:02,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:58:02,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:58:02,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:58:02,472 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:58:02,473 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:58:02,474 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c [2019-11-28 20:58:02,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fedbfd2cd/0a2ff8f88dff480eada5ecbab72c6b65/FLAG9ec14835c [2019-11-28 20:58:03,063 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:58:03,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c [2019-11-28 20:58:03,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fedbfd2cd/0a2ff8f88dff480eada5ecbab72c6b65/FLAG9ec14835c [2019-11-28 20:58:03,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fedbfd2cd/0a2ff8f88dff480eada5ecbab72c6b65 [2019-11-28 20:58:03,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:58:03,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:58:03,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:03,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:58:03,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:58:03,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:03,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21aba202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03, skipping insertion in model container [2019-11-28 20:58:03,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:03,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:58:03,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:58:03,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:03,849 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:58:03,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:03,974 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:58:03,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03 WrapperNode [2019-11-28 20:58:03,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:03,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:03,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:58:03,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:58:03,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:04,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:04,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:04,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:58:04,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:58:04,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:58:04,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:04,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:04,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:04,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:04,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:04,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:04,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (1/1) ... [2019-11-28 20:58:04,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:58:04,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:58:04,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:58:04,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:58:04,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (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 20:58:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:58:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:58:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:58:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:58:04,852 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:58:04,853 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-11-28 20:58:04,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:04 BoogieIcfgContainer [2019-11-28 20:58:04,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:58:04,855 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:58:04,855 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:58:04,859 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:58:04,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:04,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:58:03" (1/3) ... [2019-11-28 20:58:04,861 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e6b603c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:04, skipping insertion in model container [2019-11-28 20:58:04,862 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:04,862 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:03" (2/3) ... [2019-11-28 20:58:04,863 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e6b603c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:04, skipping insertion in model container [2019-11-28 20:58:04,863 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:04,863 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:04" (3/3) ... [2019-11-28 20:58:04,866 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product16.cil.c [2019-11-28 20:58:04,915 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:58:04,916 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:58:04,916 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:58:04,917 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:58:04,917 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:58:04,917 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:58:04,917 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:58:04,918 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:58:04,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2019-11-28 20:58:04,963 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-28 20:58:04,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:04,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:04,970 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:04,970 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:04,971 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:58:04,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2019-11-28 20:58:04,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-28 20:58:04,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:04,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:04,977 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:04,977 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:04,982 INFO L794 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);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~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.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; 9#L-1true havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 8#L179true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 25#L187true main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 13#L277true assume 0 != main_~tmp~1; 32#L253true havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 30#L136-1true [2019-11-28 20:58:04,982 INFO L796 eck$LassoCheckResult]: Loop: 30#L136-1true assume !false; 63#L854true assume test_~splverifierCounter~0 < 4; 7#L855true test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 41#L863true assume !(0 != test_~tmp~7); 14#L863-1true test_~tmp___0~1 := test_#t~nondet69;havoc test_#t~nondet69; 66#L873true assume !(0 != test_~tmp___0~1); 68#L873-1true test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 52#L883true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 70#L891-1true assume !(0 != ~pumpRunning~0); 47#L677true assume !(0 != ~systemActive~0); 31#L684true havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 56#L89-1true __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; 35#L136true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 30#L136-1true [2019-11-28 20:58:04,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:04,989 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:58:04,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:04,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554983954] [2019-11-28 20:58:04,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:05,308 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:05,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:05,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1672356212, now seen corresponding path program 1 times [2019-11-28 20:58:05,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:05,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040642229] [2019-11-28 20:58:05,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:58:05,364 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 20:58:05,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040642229] [2019-11-28 20:58:05,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:58:05,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:58:05,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483068469] [2019-11-28 20:58:05,371 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:58:05,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:58:05,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:58:05,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:58:05,390 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2019-11-28 20:58:05,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:58:05,457 INFO L93 Difference]: Finished difference Result 130 states and 180 transitions. [2019-11-28 20:58:05,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:58:05,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 180 transitions. [2019-11-28 20:58:05,466 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 82 [2019-11-28 20:58:05,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 116 states and 165 transitions. [2019-11-28 20:58:05,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2019-11-28 20:58:05,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2019-11-28 20:58:05,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 165 transitions. [2019-11-28 20:58:05,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:58:05,476 INFO L688 BuchiCegarLoop]: Abstraction has 116 states and 165 transitions. [2019-11-28 20:58:05,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 165 transitions. [2019-11-28 20:58:05,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2019-11-28 20:58:05,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-28 20:58:05,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2019-11-28 20:58:05,514 INFO L711 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2019-11-28 20:58:05,515 INFO L591 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2019-11-28 20:58:05,515 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:58:05,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2019-11-28 20:58:05,517 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2019-11-28 20:58:05,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:05,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:05,518 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:05,519 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:05,519 INFO L794 eck$LassoCheckResult]: Stem: 269#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);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~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.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; 221#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 219#L179 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 220#L187 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 228#L277 assume 0 != main_~tmp~1; 229#L253 havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 254#L136-1 [2019-11-28 20:58:05,519 INFO L796 eck$LassoCheckResult]: Loop: 254#L136-1 assume !false; 281#L854 assume test_~splverifierCounter~0 < 4; 282#L855 test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 304#L863 assume !(0 != test_~tmp~7); 302#L863-1 test_~tmp___0~1 := test_#t~nondet69;havoc test_#t~nondet69; 301#L873 assume !(0 != test_~tmp___0~1); 299#L873-1 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 273#L883 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 274#L891-1 assume !(0 != ~pumpRunning~0); 271#L677 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 238#L709 assume !(0 != ~pumpRunning~0); 225#L684 havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 278#L89-1 __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; 279#L136 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 254#L136-1 [2019-11-28 20:58:05,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:05,520 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 20:58:05,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:05,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198037168] [2019-11-28 20:58:05,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:05,665 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:05,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:05,666 INFO L82 PathProgramCache]: Analyzing trace with hash -323963301, now seen corresponding path program 1 times [2019-11-28 20:58:05,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:05,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111029446] [2019-11-28 20:58:05,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:05,701 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:05,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:05,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1279076225, now seen corresponding path program 1 times [2019-11-28 20:58:05,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:05,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559204658] [2019-11-28 20:58:05,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:05,876 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:33,190 WARN L192 SmtUtils]: Spent 27.18 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 20:58:45,772 WARN L192 SmtUtils]: Spent 12.58 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 20:58:45,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:58:45 BoogieIcfgContainer [2019-11-28 20:58:45,851 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:58:45,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:58:45,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:58:45,852 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:58:45,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:04" (3/4) ... [2019-11-28 20:58:45,856 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:58:45,933 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:58:45,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:58:45,939 INFO L168 Benchmark]: Toolchain (without parser) took 42578.06 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 267.4 MB). Free memory was 960.4 MB in the beginning and 826.1 MB in the end (delta: 134.3 MB). Peak memory consumption was 401.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:45,940 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:58:45,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:45,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.49 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:45,943 INFO L168 Benchmark]: Boogie Preprocessor took 57.90 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:45,949 INFO L168 Benchmark]: RCFGBuilder took 755.10 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: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:45,950 INFO L168 Benchmark]: BuchiAutomizer took 40996.14 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 151.0 MB). Free memory was 1.0 GB in the beginning and 826.1 MB in the end (delta: 213.3 MB). Peak memory consumption was 372.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:45,953 INFO L168 Benchmark]: Witness Printer took 82.42 ms. Allocated memory is still 1.3 GB. Free memory is still 826.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:58:45,955 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 616.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.49 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.90 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 755.10 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: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40996.14 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 151.0 MB). Free memory was 1.0 GB in the beginning and 826.1 MB in the end (delta: 213.3 MB). Peak memory consumption was 372.1 MB. Max. memory is 11.5 GB. * Witness Printer took 82.42 ms. Allocated memory is still 1.3 GB. Free memory is still 826.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 114 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 40.6s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 114 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 88 SDslu, 80 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 853]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3439} State at position 1 is {NULL=0, retValue_acc=0, NULL=3457, NULL=3451, NULL=0, NULL=0, NULL=3439, NULL=3463, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=3446, NULL=0, NULL=3454, NULL=0, NULL=0, methaneLevelCritical=0, NULL=3444, NULL=0, NULL=3450, NULL=3456, tmp=0, NULL=0, tmp___1=0, tmp___0=0, NULL=3442, cleanupTimeShifts=4, NULL=3449, NULL=3441, NULL=3464, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b05f4e0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d3a0506=0, NULL=3462, NULL=0, systemActive=1, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2776cff2=0, NULL=3440, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=3459, \result=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2916661a=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@91f9685=0, NULL=0, NULL=3448, tmp=0, retValue_acc=1, NULL=3452, NULL=3458, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@450c076a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d41fceb=56, NULL=3443, tmp___2=56, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7df49c0a=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=3445, NULL=3455, head=0, tmp=0, NULL=3461, NULL=0, NULL=3447, NULL=3453, NULL=3460} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L192] int cleanupTimeShifts = 4; [L469] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L670] int pumpRunning = 0; [L671] int systemActive = 1; [L268] int retValue_acc ; [L269] int tmp ; [L183] int retValue_acc ; [L186] retValue_acc = 1 [L187] return (retValue_acc); [L275] tmp = valid_product() [L277] COND TRUE \read(tmp) [L844] int splverifierCounter ; [L845] int tmp ; [L846] int tmp___0 ; [L847] int tmp___1 ; [L848] int tmp___2 ; [L851] splverifierCounter = 0 Loop: [L853] COND TRUE 1 [L855] COND TRUE splverifierCounter < 4 [L861] tmp = __VERIFIER_nondet_int() [L863] COND FALSE !(\read(tmp)) [L871] tmp___0 = __VERIFIER_nondet_int() [L873] COND FALSE !(\read(tmp___0)) [L881] tmp___2 = __VERIFIER_nondet_int() [L883] COND TRUE \read(tmp___2) [L838] systemActive = 1 [L677] COND FALSE !(\read(pumpRunning)) [L684] COND TRUE \read(systemActive) [L706] int tmp ; [L709] COND FALSE !(\read(pumpRunning)) [L129] int tmp ; [L130] int tmp___0 ; [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L134] tmp = isMethaneLevelCritical() [L136] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...