./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product06.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_product06.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 2e3a30f3e039239baba08dd6989ee3f84e0fd49b ........................................................................................................................................................................................................................................................................................................................................................... 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 20:57:20,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:57:20,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:57:20,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:57:20,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:57:20,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:57:20,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:57:20,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:57:20,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:57:20,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:57:20,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:57:20,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:57:20,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:57:20,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:57:20,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:57:20,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:57:20,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:57:20,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:57:20,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:57:20,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:57:20,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:57:20,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:57:20,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:57:20,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:57:20,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:57:20,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:57:20,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:57:20,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:57:20,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:57:20,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:57:20,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:57:20,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:57:20,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:57:20,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:57:20,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:57:20,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:57:20,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:57:20,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:57:20,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:57:20,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:57:20,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:57:20,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:57:20,124 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:57:20,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:57:20,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:57:20,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:57:20,127 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:57:20,127 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:57:20,127 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:57:20,127 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:57:20,127 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:57:20,132 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:57:20,132 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:57:20,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:57:20,133 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:57:20,133 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:57:20,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:57:20,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:57:20,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:57:20,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:57:20,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:57:20,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:57:20,134 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:57:20,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:57:20,136 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:57:20,137 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:57:20,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:57:20,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:57:20,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:57:20,138 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:57:20,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:57:20,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:57:20,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:57:20,138 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:57:20,139 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:57:20,140 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 -> 2e3a30f3e039239baba08dd6989ee3f84e0fd49b [2019-11-28 20:57:20,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:57:20,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:57:20,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:57:20,477 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:57:20,477 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:57:20,478 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product06.cil.c [2019-11-28 20:57:20,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f24189ae/dd277014fb264b998129b399c32006c7/FLAG96d982c76 [2019-11-28 20:57:21,101 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:57:21,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product06.cil.c [2019-11-28 20:57:21,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f24189ae/dd277014fb264b998129b399c32006c7/FLAG96d982c76 [2019-11-28 20:57:21,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f24189ae/dd277014fb264b998129b399c32006c7 [2019-11-28 20:57:21,384 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:57:21,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:57:21,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:57:21,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:57:21,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:57:21,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:57:21" (1/1) ... [2019-11-28 20:57:21,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564c4a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:21, skipping insertion in model container [2019-11-28 20:57:21,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:57:21" (1/1) ... [2019-11-28 20:57:21,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:57:21,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:57:21,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:57:21,847 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:57:21,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:57:22,001 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:57:22,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22 WrapperNode [2019-11-28 20:57:22,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:57:22,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:57:22,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:57:22,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:57:22,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (1/1) ... [2019-11-28 20:57:22,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (1/1) ... [2019-11-28 20:57:22,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:57:22,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:57:22,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:57:22,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:57:22,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (1/1) ... [2019-11-28 20:57:22,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (1/1) ... [2019-11-28 20:57:22,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (1/1) ... [2019-11-28 20:57:22,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (1/1) ... [2019-11-28 20:57:22,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (1/1) ... [2019-11-28 20:57:22,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (1/1) ... [2019-11-28 20:57:22,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (1/1) ... [2019-11-28 20:57:22,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:57:22,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:57:22,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:57:22,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:57:22,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (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 20:57:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:57:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:57:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:57:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:57:22,906 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:57:22,907 INFO L287 CfgBuilder]: Removed 98 assume(true) statements. [2019-11-28 20:57:22,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:57:22 BoogieIcfgContainer [2019-11-28 20:57:22,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:57:22,909 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:57:22,910 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:57:22,913 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:57:22,915 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:57:22,915 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:57:21" (1/3) ... [2019-11-28 20:57:22,916 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ab083d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:57:22, skipping insertion in model container [2019-11-28 20:57:22,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:57:22,917 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:22" (2/3) ... [2019-11-28 20:57:22,917 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ab083d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:57:22, skipping insertion in model container [2019-11-28 20:57:22,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:57:22,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:57:22" (3/3) ... [2019-11-28 20:57:22,920 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product06.cil.c [2019-11-28 20:57:22,980 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:57:22,981 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:57:22,981 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:57:22,981 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:57:22,981 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:57:22,982 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:57:22,982 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:57:22,982 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:57:23,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states. [2019-11-28 20:57:23,042 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2019-11-28 20:57:23,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:57:23,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:57:23,050 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:57:23,050 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:57:23,051 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:57:23,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states. [2019-11-28 20:57:23,057 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2019-11-28 20:57:23,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:57:23,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:57:23,058 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:57:23,058 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:57:23,063 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 8#L-1true havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 28#L431true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 35#L439true main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 47#L531true assume 0 != main_~tmp~3; 68#L507true 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; 40#L556-1true [2019-11-28 20:57:23,064 INFO L796 eck$LassoCheckResult]: Loop: 40#L556-1true assume !false; 59#L678true assume test_~splverifierCounter~0 < 4; 65#L679true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 29#L687true assume !(0 != test_~tmp~5); 3#L687-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 62#L697true assume !(0 != test_~tmp___0~1); 63#L697-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 54#L707true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 56#L715-2true assume !(0 != ~pumpRunning~0); 49#L743true assume !(0 != ~systemActive~0); 32#L750true havoc __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_#t~ret38, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 9#L629-1true __utac_acc__Specification1_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; 36#L556true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 40#L556-1true [2019-11-28 20:57:23,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:57:23,072 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:57:23,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:57:23,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834846178] [2019-11-28 20:57:23,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:57:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:23,596 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:57:23,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:57:23,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1680944957, now seen corresponding path program 1 times [2019-11-28 20:57:23,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:57:23,600 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738633104] [2019-11-28 20:57:23,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:57:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:57:23,659 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 20:57:23,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738633104] [2019-11-28 20:57:23,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:57:23,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:57:23,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991751902] [2019-11-28 20:57:23,668 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:57:23,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:57:23,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:57:23,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:57:23,689 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states. [2019-11-28 20:57:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:57:23,740 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2019-11-28 20:57:23,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:57:23,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 89 transitions. [2019-11-28 20:57:23,747 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2019-11-28 20:57:23,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2019-11-28 20:57:23,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2019-11-28 20:57:23,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2019-11-28 20:57:23,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2019-11-28 20:57:23,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:57:23,758 INFO L688 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2019-11-28 20:57:23,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2019-11-28 20:57:23,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-28 20:57:23,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-28 20:57:23,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2019-11-28 20:57:23,789 INFO L711 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2019-11-28 20:57:23,789 INFO L591 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2019-11-28 20:57:23,789 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:57:23,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2019-11-28 20:57:23,791 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2019-11-28 20:57:23,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:57:23,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:57:23,793 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:57:23,793 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:57:23,793 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 149#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 150#L431 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 179#L439 main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 183#L531 assume 0 != main_~tmp~3; 190#L507 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; 186#L556-1 [2019-11-28 20:57:23,793 INFO L796 eck$LassoCheckResult]: Loop: 186#L556-1 assume !false; 187#L678 assume test_~splverifierCounter~0 < 4; 199#L679 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 180#L687 assume !(0 != test_~tmp~5); 141#L687-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 142#L697 assume !(0 != test_~tmp___0~1); 198#L697-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 193#L707 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 194#L715-2 assume !(0 != ~pumpRunning~0); 177#L743 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 168#L775 assume !(0 != ~pumpRunning~0); 169#L750 havoc __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_#t~ret38, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 151#L629-1 __utac_acc__Specification1_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; 152#L556 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 186#L556-1 [2019-11-28 20:57:23,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:57:23,794 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 20:57:23,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:57:23,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334779796] [2019-11-28 20:57:23,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:57:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:23,916 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:57:23,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:57:23,919 INFO L82 PathProgramCache]: Analyzing trace with hash -590214405, now seen corresponding path program 1 times [2019-11-28 20:57:23,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:57:23,920 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297703306] [2019-11-28 20:57:23,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:57:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:23,940 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:57:23,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:57:23,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1012825121, now seen corresponding path program 1 times [2019-11-28 20:57:23,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:57:23,941 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456093571] [2019-11-28 20:57:23,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:57:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:24,101 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:57:51,321 WARN L192 SmtUtils]: Spent 27.07 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 20:58:05,290 WARN L192 SmtUtils]: Spent 13.97 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 20:58:05,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:58:05 BoogieIcfgContainer [2019-11-28 20:58:05,363 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:58:05,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:58:05,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:58:05,364 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:58:05,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:57:22" (3/4) ... [2019-11-28 20:58:05,368 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:58:05,428 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:58:05,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:58:05,434 INFO L168 Benchmark]: Toolchain (without parser) took 44048.36 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 309.9 MB). Free memory was 956.3 MB in the beginning and 1.3 GB in the end (delta: -327.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:58:05,434 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:58:05,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:05,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:05,436 INFO L168 Benchmark]: Boogie Preprocessor took 54.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:58:05,436 INFO L168 Benchmark]: RCFGBuilder took 779.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:05,437 INFO L168 Benchmark]: BuchiAutomizer took 42453.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -218.0 MB). Peak memory consumption was 369.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:05,438 INFO L168 Benchmark]: Witness Printer took 67.99 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:05,442 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 615.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 779.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42453.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -218.0 MB). Peak memory consumption was 369.7 MB. Max. memory is 11.5 GB. * Witness Printer took 67.99 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 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 3 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 42.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 86 SDtfs, 86 SDslu, 0 SDs, 0 SdLazy, 3 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: 677]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2202} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=2202, NULL=15838, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@450c076a=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=15830, NULL=15837, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@680a9b44=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2aee9c56=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30521af0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70577c0f=0, tmp=0, NULL=0, NULL=0, NULL=2204, tmp___1=0, NULL=2212, NULL=2213, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36889b24=0, NULL=2207, tmp___0=0, NULL=15840, cleanupTimeShifts=4, NULL=15835, NULL=11041, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=15841, retValue_acc=0, NULL=15832, NULL=15836, NULL=0, NULL=0, \result=1, NULL=2210, head=0, pumpRunning=0, \result=0, NULL=2208, tmp=1, NULL=0, NULL=15839, NULL=0, tmp=0, NULL=0, NULL=15842, retValue_acc=1, NULL=2209, tmp___2=53, NULL=15834, tmp___0=0, splverifierCounter=0, \result=0, NULL=2205, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6319ae70=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8f47724=0, head=0, NULL=0, NULL=2203, tmp=0, NULL=15833, NULL=0, NULL=2206, NULL=0, NULL=0, NULL=2211, NULL=15831, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L586] int waterLevel = 1; [L587] int methaneLevelCritical = 0; [L736] int pumpRunning = 0; [L737] int systemActive = 1; [L522] int retValue_acc ; [L523] int tmp ; [L435] int retValue_acc ; [L438] retValue_acc = 1 [L439] return (retValue_acc); [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L668] int splverifierCounter ; [L669] int tmp ; [L670] int tmp___0 ; [L671] int tmp___1 ; [L672] int tmp___2 ; [L675] splverifierCounter = 0 Loop: [L677] COND TRUE 1 [L679] COND TRUE splverifierCounter < 4 [L685] tmp = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp)) [L695] tmp___0 = __VERIFIER_nondet_int() [L697] COND FALSE !(\read(tmp___0)) [L705] tmp___2 = __VERIFIER_nondet_int() [L707] COND TRUE \read(tmp___2) [L872] systemActive = 1 [L743] COND FALSE !(\read(pumpRunning)) [L750] COND TRUE \read(systemActive) [L772] int tmp ; [L775] COND FALSE !(\read(pumpRunning)) [L549] int tmp ; [L550] int tmp___0 ; [L625] int retValue_acc ; [L628] retValue_acc = methaneLevelCritical [L629] return (retValue_acc); [L554] tmp = isMethaneLevelCritical() [L556] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...