./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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_spec3_product15.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 89d3e03d13ddf6bdf33773beb0dd234640ee97c8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-29 02:41:34,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:41:34,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:41:34,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:41:34,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:41:34,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:41:34,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:41:34,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:41:34,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:41:34,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:41:34,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:41:34,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:41:34,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:41:34,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:41:34,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:41:34,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:41:34,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:41:34,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:41:34,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:41:34,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:41:34,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:41:34,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:41:34,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:41:34,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:41:34,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:41:34,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:41:34,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:41:34,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:41:34,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:41:34,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:41:34,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:41:34,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:41:34,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:41:34,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:41:34,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:41:34,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:41:34,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:41:34,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:41:34,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:41:34,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:41:34,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:41:34,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:41:34,871 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:41:34,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:41:34,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:41:34,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:41:34,873 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:41:34,874 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:41:34,874 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:41:34,874 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:41:34,875 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:41:34,875 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:41:34,875 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:41:34,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:41:34,876 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:41:34,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:41:34,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:41:34,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:41:34,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:41:34,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:41:34,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:41:34,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:41:34,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:41:34,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:41:34,879 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:41:34,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:41:34,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:41:34,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:41:34,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:41:34,880 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:41:34,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:41:34,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:41:34,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:41:34,882 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:41:34,883 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:41:34,883 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 -> 89d3e03d13ddf6bdf33773beb0dd234640ee97c8 [2020-07-29 02:41:35,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:41:35,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:41:35,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:41:35,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:41:35,210 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:41:35,211 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2020-07-29 02:41:35,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9668015fc/139ef67ad75e4c14b37b6577b3737970/FLAGf681e9148 [2020-07-29 02:41:35,772 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:41:35,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2020-07-29 02:41:35,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9668015fc/139ef67ad75e4c14b37b6577b3737970/FLAGf681e9148 [2020-07-29 02:41:36,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9668015fc/139ef67ad75e4c14b37b6577b3737970 [2020-07-29 02:41:36,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:41:36,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:41:36,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:41:36,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:41:36,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:41:36,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68074a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36, skipping insertion in model container [2020-07-29 02:41:36,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:41:36,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:41:36,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:41:36,615 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:41:36,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:41:36,818 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:41:36,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36 WrapperNode [2020-07-29 02:41:36,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:41:36,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:41:36,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:41:36,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:41:36,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:41:36,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:41:36,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:41:36,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:41:36,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (1/1) ... [2020-07-29 02:41:36,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:41:36,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:41:36,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:41:36,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:41:36,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (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 [2020-07-29 02:41:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:41:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:41:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:41:37,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:41:38,234 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:41:38,235 INFO L295 CfgBuilder]: Removed 106 assume(true) statements. [2020-07-29 02:41:38,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:41:38 BoogieIcfgContainer [2020-07-29 02:41:38,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:41:38,240 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:41:38,240 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:41:38,245 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:41:38,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:41:38,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:41:36" (1/3) ... [2020-07-29 02:41:38,248 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65c675a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:41:38, skipping insertion in model container [2020-07-29 02:41:38,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:41:38,248 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:36" (2/3) ... [2020-07-29 02:41:38,248 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65c675a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:41:38, skipping insertion in model container [2020-07-29 02:41:38,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:41:38,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:41:38" (3/3) ... [2020-07-29 02:41:38,251 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2020-07-29 02:41:38,306 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:41:38,306 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:41:38,306 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:41:38,306 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:41:38,307 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:41:38,308 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:41:38,308 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:41:38,308 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:41:38,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2020-07-29 02:41:38,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-07-29 02:41:38,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:41:38,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:41:38,378 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:41:38,378 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:41:38,378 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:41:38,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2020-07-29 02:41:38,389 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-07-29 02:41:38,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:41:38,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:41:38,390 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:41:38,390 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:41:38,397 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);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(21);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(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #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(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; 41#L897true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 49#L905true main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 52#L817true assume 0 != main_~tmp~6; 39#L791true havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 56#L847-1true [2020-07-29 02:41:38,398 INFO L796 eck$LassoCheckResult]: Loop: 56#L847-1true assume !false; 57#L229true assume test_~splverifierCounter~0 < 4; 4#L230true test_~tmp~2 := test_#t~nondet19;havoc test_#t~nondet19; 36#L238true assume !(0 != test_~tmp~2); 35#L238-1true test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 20#L248true assume !(0 != test_~tmp___0~0); 18#L248-1true test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 71#L258true assume 0 != test_~tmp___2~0; 27#L264-1true assume !(0 != ~pumpRunning~0); 74#L57true assume !(0 != ~systemActive~0); 66#L64true havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 28#L695-1true __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 12#L841true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 56#L847-1true [2020-07-29 02:41:38,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:38,406 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:41:38,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:38,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098417072] [2020-07-29 02:41:38,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:38,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:38,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:38,827 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:38,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:38,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310530, now seen corresponding path program 1 times [2020-07-29 02:41:38,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:38,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231882629] [2020-07-29 02:41:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:38,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:38,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:38,849 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:38,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:38,851 INFO L82 PathProgramCache]: Analyzing trace with hash 40968408, now seen corresponding path program 1 times [2020-07-29 02:41:38,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:38,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303765861] [2020-07-29 02:41:38,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:41:39,055 INFO L280 TraceCheckUtils]: 0: Hoare triple {82#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);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(21);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(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #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(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {84#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:41:39,057 INFO L280 TraceCheckUtils]: 1: Hoare triple {84#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; {84#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:41:39,058 INFO L280 TraceCheckUtils]: 2: Hoare triple {84#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; {85#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} is VALID [2020-07-29 02:41:39,059 INFO L280 TraceCheckUtils]: 3: Hoare triple {85#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; {86#(= ULTIMATE.start_main_~tmp~6 ~systemActive~0)} is VALID [2020-07-29 02:41:39,060 INFO L280 TraceCheckUtils]: 4: Hoare triple {86#(= ULTIMATE.start_main_~tmp~6 ~systemActive~0)} assume 0 != main_~tmp~6; {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,061 INFO L280 TraceCheckUtils]: 5: Hoare triple {87#(not (= 0 ~systemActive~0))} havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,062 INFO L280 TraceCheckUtils]: 6: Hoare triple {87#(not (= 0 ~systemActive~0))} assume !false; {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,063 INFO L280 TraceCheckUtils]: 7: Hoare triple {87#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0 < 4; {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,064 INFO L280 TraceCheckUtils]: 8: Hoare triple {87#(not (= 0 ~systemActive~0))} test_~tmp~2 := test_#t~nondet19;havoc test_#t~nondet19; {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,065 INFO L280 TraceCheckUtils]: 9: Hoare triple {87#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~2); {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,066 INFO L280 TraceCheckUtils]: 10: Hoare triple {87#(not (= 0 ~systemActive~0))} test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,066 INFO L280 TraceCheckUtils]: 11: Hoare triple {87#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0); {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,067 INFO L280 TraceCheckUtils]: 12: Hoare triple {87#(not (= 0 ~systemActive~0))} test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,068 INFO L280 TraceCheckUtils]: 13: Hoare triple {87#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0; {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,069 INFO L280 TraceCheckUtils]: 14: Hoare triple {87#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {87#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:39,070 INFO L280 TraceCheckUtils]: 15: Hoare triple {87#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {83#false} is VALID [2020-07-29 02:41:39,070 INFO L280 TraceCheckUtils]: 16: Hoare triple {83#false} havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; {83#false} is VALID [2020-07-29 02:41:39,071 INFO L280 TraceCheckUtils]: 17: Hoare triple {83#false} __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; {83#false} is VALID [2020-07-29 02:41:39,071 INFO L280 TraceCheckUtils]: 18: Hoare triple {83#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; {83#false} is VALID [2020-07-29 02:41:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:41:39,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303765861] [2020-07-29 02:41:39,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:41:39,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-29 02:41:39,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157768329] [2020-07-29 02:41:39,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:41:39,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-29 02:41:39,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-29 02:41:39,200 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 6 states. [2020-07-29 02:41:40,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:40,387 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2020-07-29 02:41:40,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-29 02:41:40,389 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-29 02:41:40,431 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:41:40,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 273 transitions. [2020-07-29 02:41:40,497 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 125 [2020-07-29 02:41:40,511 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 177 states and 252 transitions. [2020-07-29 02:41:40,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2020-07-29 02:41:40,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2020-07-29 02:41:40,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 252 transitions. [2020-07-29 02:41:40,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:41:40,515 INFO L688 BuchiCegarLoop]: Abstraction has 177 states and 252 transitions. [2020-07-29 02:41:40,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 252 transitions. [2020-07-29 02:41:40,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 114. [2020-07-29 02:41:40,556 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:41:40,557 INFO L82 GeneralOperation]: Start isEquivalent. First operand 177 states and 252 transitions. Second operand 114 states. [2020-07-29 02:41:40,557 INFO L74 IsIncluded]: Start isIncluded. First operand 177 states and 252 transitions. Second operand 114 states. [2020-07-29 02:41:40,559 INFO L87 Difference]: Start difference. First operand 177 states and 252 transitions. Second operand 114 states. [2020-07-29 02:41:40,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:40,571 INFO L93 Difference]: Finished difference Result 177 states and 252 transitions. [2020-07-29 02:41:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 252 transitions. [2020-07-29 02:41:40,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:41:40,575 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:41:40,575 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 177 states and 252 transitions. [2020-07-29 02:41:40,575 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 177 states and 252 transitions. [2020-07-29 02:41:40,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:40,586 INFO L93 Difference]: Finished difference Result 177 states and 252 transitions. [2020-07-29 02:41:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 252 transitions. [2020-07-29 02:41:40,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:41:40,588 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:41:40,588 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:41:40,589 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:41:40,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-29 02:41:40,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2020-07-29 02:41:40,596 INFO L711 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-07-29 02:41:40,597 INFO L591 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-07-29 02:41:40,597 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:41:40,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2020-07-29 02:41:40,599 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2020-07-29 02:41:40,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:41:40,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:41:40,600 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:41:40,600 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:41:40,601 INFO L794 eck$LassoCheckResult]: Stem: 332#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);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(21);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(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #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(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 302#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; 303#L897 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 339#L905 main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 349#L817 assume 0 != main_~tmp~6; 337#L791 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 307#L847-1 [2020-07-29 02:41:40,601 INFO L796 eck$LassoCheckResult]: Loop: 307#L847-1 assume !false; 353#L229 assume test_~splverifierCounter~0 < 4; 290#L230 test_~tmp~2 := test_#t~nondet19;havoc test_#t~nondet19; 291#L238 assume !(0 != test_~tmp~2); 330#L238-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 316#L248 assume !(0 != test_~tmp___0~0); 314#L248-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 315#L258 assume 0 != test_~tmp___2~0; 323#L264-1 assume !(0 != ~pumpRunning~0); 312#L57 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret0, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 352#L89 assume !(0 != ~pumpRunning~0); 342#L64 havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 324#L695-1 __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 306#L841 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 307#L847-1 [2020-07-29 02:41:40,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:40,603 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:41:40,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:40,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899726493] [2020-07-29 02:41:40,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:40,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:40,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:40,766 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:40,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:40,766 INFO L82 PathProgramCache]: Analyzing trace with hash -353546770, now seen corresponding path program 1 times [2020-07-29 02:41:40,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:40,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059364158] [2020-07-29 02:41:40,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:40,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:40,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:40,791 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:40,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:40,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492756, now seen corresponding path program 1 times [2020-07-29 02:41:40,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:40,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90822244] [2020-07-29 02:41:40,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:41:40,868 INFO L280 TraceCheckUtils]: 0: Hoare triple {765#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);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(21);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(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #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(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,869 INFO L280 TraceCheckUtils]: 1: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,870 INFO L280 TraceCheckUtils]: 2: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,871 INFO L280 TraceCheckUtils]: 3: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,871 INFO L280 TraceCheckUtils]: 4: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} assume 0 != main_~tmp~6; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,872 INFO L280 TraceCheckUtils]: 5: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,873 INFO L280 TraceCheckUtils]: 6: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} assume !false; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,873 INFO L280 TraceCheckUtils]: 7: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} assume test_~splverifierCounter~0 < 4; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,874 INFO L280 TraceCheckUtils]: 8: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} test_~tmp~2 := test_#t~nondet19;havoc test_#t~nondet19; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,875 INFO L280 TraceCheckUtils]: 9: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp~2); {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,875 INFO L280 TraceCheckUtils]: 10: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,876 INFO L280 TraceCheckUtils]: 11: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___0~0); {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,877 INFO L280 TraceCheckUtils]: 12: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,878 INFO L280 TraceCheckUtils]: 13: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp___2~0; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,878 INFO L280 TraceCheckUtils]: 14: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,879 INFO L280 TraceCheckUtils]: 15: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret0, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,880 INFO L280 TraceCheckUtils]: 16: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {767#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-29 02:41:40,881 INFO L280 TraceCheckUtils]: 17: Hoare triple {767#(= 0 ~methaneLevelCritical~0)} havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; {768#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} is VALID [2020-07-29 02:41:40,881 INFO L280 TraceCheckUtils]: 18: Hoare triple {768#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; {769#(= 0 ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7)} is VALID [2020-07-29 02:41:40,882 INFO L280 TraceCheckUtils]: 19: Hoare triple {769#(= 0 ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; {766#false} is VALID [2020-07-29 02:41:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:41:40,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90822244] [2020-07-29 02:41:40,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:41:40,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:41:40,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828791397] [2020-07-29 02:41:40,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:41:40,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-29 02:41:40,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-29 02:41:40,954 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. cyclomatic complexity: 51 Second operand 5 states. [2020-07-29 02:41:41,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:41,859 INFO L93 Difference]: Finished difference Result 367 states and 533 transitions. [2020-07-29 02:41:41,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-29 02:41:41,859 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-29 02:41:41,892 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:41:41,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 533 transitions. [2020-07-29 02:41:41,921 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 271 [2020-07-29 02:41:41,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 533 transitions. [2020-07-29 02:41:41,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2020-07-29 02:41:41,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2020-07-29 02:41:41,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 533 transitions. [2020-07-29 02:41:41,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:41:41,952 INFO L688 BuchiCegarLoop]: Abstraction has 367 states and 533 transitions. [2020-07-29 02:41:41,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 533 transitions. [2020-07-29 02:41:41,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 222. [2020-07-29 02:41:41,990 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:41:41,990 INFO L82 GeneralOperation]: Start isEquivalent. First operand 367 states and 533 transitions. Second operand 222 states. [2020-07-29 02:41:41,990 INFO L74 IsIncluded]: Start isIncluded. First operand 367 states and 533 transitions. Second operand 222 states. [2020-07-29 02:41:41,990 INFO L87 Difference]: Start difference. First operand 367 states and 533 transitions. Second operand 222 states. [2020-07-29 02:41:42,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:42,010 INFO L93 Difference]: Finished difference Result 367 states and 533 transitions. [2020-07-29 02:41:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 533 transitions. [2020-07-29 02:41:42,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:41:42,020 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:41:42,020 INFO L74 IsIncluded]: Start isIncluded. First operand 222 states. Second operand 367 states and 533 transitions. [2020-07-29 02:41:42,020 INFO L87 Difference]: Start difference. First operand 222 states. Second operand 367 states and 533 transitions. [2020-07-29 02:41:42,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:42,038 INFO L93 Difference]: Finished difference Result 367 states and 533 transitions. [2020-07-29 02:41:42,039 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 533 transitions. [2020-07-29 02:41:42,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:41:42,040 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:41:42,040 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:41:42,040 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:41:42,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-07-29 02:41:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 310 transitions. [2020-07-29 02:41:42,048 INFO L711 BuchiCegarLoop]: Abstraction has 222 states and 310 transitions. [2020-07-29 02:41:42,048 INFO L591 BuchiCegarLoop]: Abstraction has 222 states and 310 transitions. [2020-07-29 02:41:42,048 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 02:41:42,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 310 transitions. [2020-07-29 02:41:42,050 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 160 [2020-07-29 02:41:42,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:41:42,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:41:42,051 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:41:42,051 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:41:42,051 INFO L794 eck$LassoCheckResult]: Stem: 1194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);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(21);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(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #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(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1157#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; 1158#L897 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1203#L905 main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 1215#L817 assume 0 != main_~tmp~6; 1199#L791 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1200#L847-1 [2020-07-29 02:41:42,052 INFO L796 eck$LassoCheckResult]: Loop: 1200#L847-1 assume !false; 1345#L229 assume test_~splverifierCounter~0 < 4; 1344#L230 test_~tmp~2 := test_#t~nondet19;havoc test_#t~nondet19; 1343#L238 assume !(0 != test_~tmp~2); 1341#L238-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 1340#L248 assume !(0 != test_~tmp___0~0); 1338#L248-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 1335#L258 assume 0 != test_~tmp___2~0; 1182#L264-1 assume !(0 != ~pumpRunning~0); 1166#L57 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret0, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 1218#L89 assume !(0 != ~pumpRunning~0); 1204#L64 havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 1183#L695-1 __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 1184#L841 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 1147#L727 __utac_acc__Specification3_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 1148#L847 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 1200#L847-1 [2020-07-29 02:41:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:42,052 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-07-29 02:41:42,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:42,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181760450] [2020-07-29 02:41:42,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:42,087 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:42,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:42,134 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:42,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:42,135 INFO L82 PathProgramCache]: Analyzing trace with hash -456023616, now seen corresponding path program 1 times [2020-07-29 02:41:42,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:42,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415712466] [2020-07-29 02:41:42,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:42,140 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:42,143 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:42,147 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:42,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:42,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1828298394, now seen corresponding path program 1 times [2020-07-29 02:41:42,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:42,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839072357] [2020-07-29 02:41:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:42,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:42,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:42,230 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:42:26,418 WARN L193 SmtUtils]: Spent 44.08 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:43:04,458 WARN L193 SmtUtils]: Spent 37.84 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:43:04,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:43:04 BoogieIcfgContainer [2020-07-29 02:43:04,796 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:43:04,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:43:04,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:43:04,797 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:43:04,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:41:38" (3/4) ... [2020-07-29 02:43:04,802 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:43:04,861 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:43:04,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:43:04,864 INFO L168 Benchmark]: Toolchain (without parser) took 88775.35 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.6 MB). Free memory was 962.9 MB in the beginning and 822.7 MB in the end (delta: 140.3 MB). Peak memory consumption was 455.9 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:04,864 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:43:04,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:04,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:04,866 INFO L168 Benchmark]: Boogie Preprocessor took 53.29 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. [2020-07-29 02:43:04,867 INFO L168 Benchmark]: RCFGBuilder took 1276.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.3 MB in the end (delta: 126.6 MB). Peak memory consumption was 126.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:04,868 INFO L168 Benchmark]: BuchiAutomizer took 86556.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 972.3 MB in the beginning and 822.7 MB in the end (delta: 149.7 MB). Peak memory consumption was 344.1 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:04,869 INFO L168 Benchmark]: Witness Printer took 64.37 ms. Allocated memory is still 1.3 GB. Free memory is still 822.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:43:04,872 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 727.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.29 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 1276.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.3 MB in the end (delta: 126.6 MB). Peak memory consumption was 126.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 86556.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 972.3 MB in the beginning and 822.7 MB in the end (delta: 149.7 MB). Peak memory consumption was 344.1 MB. Max. memory is 11.5 GB. * Witness Printer took 64.37 ms. Allocated memory is still 1.3 GB. Free memory is still 822.7 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 222 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 86.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 83.8s. Construction of modules took 0.3s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 208 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 222 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 221 SDtfs, 705 SDslu, 919 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 228]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=5782, NULL=5778, NULL=0, NULL=0, NULL=1, NULL=248, NULL=0, NULL=0, NULL=0, NULL=0, NULL=5789, retValue_acc=0, NULL=0, NULL=0, methaneLevelCritical=0, NULL=5783, tmp=0, NULL=0, NULL=5780, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3041c1fb=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5612caed=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@359e949d=0, cleanupTimeShifts=4, NULL=5779, NULL=5790, NULL=5774, NULL=5796, NULL=5775, tmp___0=1, tmp=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=5781, NULL=0, retValue_acc=0, NULL=5791, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51a487d1=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=5785, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13db8725=0, NULL=5773, head=0, pumpRunning=0, \result=0, NULL=5787, NULL=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3440bd5e=0, NULL=5788, retValue_acc=1, NULL=5784, retValue_acc=1, tmp___2=51, splverifierCounter=0, NULL=0, \result=0, NULL=5786, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e06f2f4=0, tmp=0, NULL=5793, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21fde6a6=51, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53c92e8f=0, NULL=5794, NULL=5776, NULL=5792, NULL=5795, NULL=5777} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int pumpRunning = 0; [L50] int systemActive = 1; [L454] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int waterLevel = 1; [L653] int methaneLevelCritical = 0; [L732] int cleanupTimeShifts = 4; [L808] int retValue_acc ; [L809] int tmp ; [L901] int retValue_acc ; [L904] retValue_acc = 1 [L905] return (retValue_acc); [L815] tmp = valid_product() [L817] COND TRUE \read(tmp) [L219] int splverifierCounter ; [L220] int tmp ; [L221] int tmp___0 ; [L222] int tmp___1 ; [L223] int tmp___2 ; [L226] splverifierCounter = 0 Loop: [L228] COND TRUE 1 [L230] COND TRUE splverifierCounter < 4 [L236] tmp = __VERIFIER_nondet_int() [L238] COND FALSE !(\read(tmp)) [L246] tmp___0 = __VERIFIER_nondet_int() [L248] COND FALSE !(\read(tmp___0)) [L256] tmp___2 = __VERIFIER_nondet_int() [L258] COND TRUE \read(tmp___2) [L57] COND FALSE !(\read(pumpRunning)) [L64] COND TRUE \read(systemActive) [L86] int tmp ; [L89] COND FALSE !(\read(pumpRunning)) [L833] int tmp ; [L834] int tmp___0 ; [L835] int tmp___1 ; [L691] int retValue_acc ; [L694] retValue_acc = methaneLevelCritical [L695] return (retValue_acc); [L839] tmp = isMethaneLevelCritical() [L841] COND FALSE !(\read(tmp)) [L723] int retValue_acc ; [L726] retValue_acc = waterLevel [L727] return (retValue_acc); [L845] tmp___0 = getWaterLevel() [L847] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...