./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product58.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 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:57:16,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:57:16,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:57:17,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:57:17,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:57:17,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:57:17,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:57:17,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:57:17,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:57:17,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:57:17,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:57:17,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:57:17,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:57:17,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:57:17,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:57:17,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:57:17,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:57:17,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:57:17,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:57:17,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:57:17,050 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:57:17,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:57:17,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:57:17,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:57:17,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:57:17,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:57:17,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:57:17,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:57:17,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:57:17,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:57:17,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:57:17,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:57:17,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:57:17,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:57:17,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:57:17,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:57:17,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:57:17,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:57:17,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:57:17,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:57:17,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:57:17,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:57:17,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:57:17,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:57:17,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:57:17,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:57:17,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:57:17,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:57:17,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:57:17,091 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:57:17,091 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:57:17,091 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:57:17,092 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:57:17,092 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:57:17,092 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:57:17,093 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:57:17,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:57:17,093 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:57:17,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:57:17,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:57:17,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:57:17,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:57:17,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:57:17,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:57:17,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:57:17,094 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:57:17,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:57:17,094 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:57:17,094 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:57:17,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:57:17,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:57:17,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:57:17,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:57:17,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:57:17,096 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:57:17,097 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c [2022-07-14 15:57:17,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:57:17,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:57:17,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:57:17,323 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:57:17,323 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:57:17,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2022-07-14 15:57:17,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e7a77a6d/738f49cca90c466aa80ea41c648c5781/FLAG88624d654 [2022-07-14 15:57:17,748 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:57:17,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2022-07-14 15:57:17,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e7a77a6d/738f49cca90c466aa80ea41c648c5781/FLAG88624d654 [2022-07-14 15:57:17,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e7a77a6d/738f49cca90c466aa80ea41c648c5781 [2022-07-14 15:57:17,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:57:17,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:57:17,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:17,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:57:17,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:57:17,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:17" (1/1) ... [2022-07-14 15:57:17,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5ab725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:17, skipping insertion in model container [2022-07-14 15:57:17,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:17" (1/1) ... [2022-07-14 15:57:17,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:57:17,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:57:18,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2022-07-14 15:57:18,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:18,159 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:57:18,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2022-07-14 15:57:18,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:18,229 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:57:18,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18 WrapperNode [2022-07-14 15:57:18,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:18,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:18,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:57:18,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:57:18,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,291 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 96, statements flattened = 728 [2022-07-14 15:57:18,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:18,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:57:18,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:57:18,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:57:18,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:57:18,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:57:18,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:57:18,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:57:18,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (1/1) ... [2022-07-14 15:57:18,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:57:18,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:57:18,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:57:18,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 15:57:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:57:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:57:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:57:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:57:18,488 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:57:18,489 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:57:18,801 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:57:18,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:57:18,818 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:57:18,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:18 BoogieIcfgContainer [2022-07-14 15:57:18,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:57:18,821 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:57:18,821 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:57:18,824 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:57:18,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:18,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:57:17" (1/3) ... [2022-07-14 15:57:18,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2686a785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:18, skipping insertion in model container [2022-07-14 15:57:18,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:18,830 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:18" (2/3) ... [2022-07-14 15:57:18,830 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2686a785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:18, skipping insertion in model container [2022-07-14 15:57:18,830 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:18,830 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:18" (3/3) ... [2022-07-14 15:57:18,831 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2022-07-14 15:57:18,892 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:57:18,893 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:57:18,893 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:57:18,893 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:57:18,893 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:57:18,893 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:57:18,893 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:57:18,894 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:57:18,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:18,918 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-07-14 15:57:18,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:18,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:18,923 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:18,923 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:18,923 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:57:18,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:18,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-07-14 15:57:18,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:18,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:18,929 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:18,929 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:18,932 INFO L752 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 64#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 7#L615true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 99#L608true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 4#L623true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 54#L258true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 114#L231true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 101#L536-2true [2022-07-14 15:57:18,933 INFO L754 eck$LassoCheckResult]: Loop: 101#L536-2true assume !false; 123#L537true assume test_~splverifierCounter~0#1 < 4; 159#L538true test_~tmp~7#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 60#L546true assume !(0 != test_~tmp~7#1); 66#L546-2true test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 174#L556true assume !(0 != test_~tmp___0~3#1); 33#L556-2true test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 160#L566true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 122#L496true assume { :end_inline_startSystem } true; 83#L574-2true assume { :begin_inline_timeShift } true; 89#L284true assume !(0 != ~pumpRunning~0); 38#L284-2true assume !(0 != ~systemActive~0); 79#L291-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 65#L110-2true __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 53#L508true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 50#L508-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 131#L301true assume { :end_inline_timeShift } true; 101#L536-2true [2022-07-14 15:57:18,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:18,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-14 15:57:18,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:18,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368391977] [2022-07-14 15:57:18,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:18,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,030 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:19,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:19,064 INFO L85 PathProgramCache]: Analyzing trace with hash -426060191, now seen corresponding path program 1 times [2022-07-14 15:57:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:19,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392048770] [2022-07-14 15:57:19,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:19,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:57:19,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:57:19,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:57:19,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392048770] [2022-07-14 15:57:19,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392048770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:57:19,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:57:19,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:57:19,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522499689] [2022-07-14 15:57:19,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:57:19,106 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:57:19,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:57:19,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:57:19,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:57:19,126 INFO L87 Difference]: Start difference. First operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:19,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:57:19,161 INFO L93 Difference]: Finished difference Result 184 states and 240 transitions. [2022-07-14 15:57:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:57:19,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 240 transitions. [2022-07-14 15:57:19,167 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-07-14 15:57:19,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 174 states and 229 transitions. [2022-07-14 15:57:19,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2022-07-14 15:57:19,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2022-07-14 15:57:19,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 229 transitions. [2022-07-14 15:57:19,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:57:19,173 INFO L369 hiAutomatonCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-07-14 15:57:19,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 229 transitions. [2022-07-14 15:57:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-07-14 15:57:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.3160919540229885) internal successors, (229), 173 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:19,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 229 transitions. [2022-07-14 15:57:19,193 INFO L392 hiAutomatonCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-07-14 15:57:19,194 INFO L374 stractBuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-07-14 15:57:19,194 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:57:19,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 229 transitions. [2022-07-14 15:57:19,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-07-14 15:57:19,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:19,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:19,196 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:19,196 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:19,196 INFO L752 eck$LassoCheckResult]: Stem: 552#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 477#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 391#L615 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 392#L608 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 382#L623 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 383#L258 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 469#L231 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 517#L536-2 [2022-07-14 15:57:19,196 INFO L754 eck$LassoCheckResult]: Loop: 517#L536-2 assume !false; 518#L537 assume test_~splverifierCounter~0#1 < 4; 530#L538 test_~tmp~7#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 474#L546 assume !(0 != test_~tmp~7#1); 385#L546-2 test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 480#L556 assume !(0 != test_~tmp___0~3#1); 439#L556-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 440#L566 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 529#L496 assume { :end_inline_startSystem } true; 494#L574-2 assume { :begin_inline_timeShift } true; 501#L284 assume !(0 != ~pumpRunning~0); 446#L284-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 447#L342 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 472#L316-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 525#L308-3 assume { :end_inline_processEnvironment__wrappee__base } true; 381#L316-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 402#L342-1 assume { :end_inline_processEnvironment } true; 403#L291-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 478#L110-2 __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 465#L508 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 427#L508-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 462#L301 assume { :end_inline_timeShift } true; 517#L536-2 [2022-07-14 15:57:19,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:19,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-14 15:57:19,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:19,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873991910] [2022-07-14 15:57:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:19,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,212 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:19,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:19,229 INFO L85 PathProgramCache]: Analyzing trace with hash -887523724, now seen corresponding path program 1 times [2022-07-14 15:57:19,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:19,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692738134] [2022-07-14 15:57:19,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:19,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:57:19,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:57:19,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:57:19,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692738134] [2022-07-14 15:57:19,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692738134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:57:19,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:57:19,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:57:19,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397212796] [2022-07-14 15:57:19,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:57:19,243 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:57:19,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:57:19,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:57:19,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:57:19,244 INFO L87 Difference]: Start difference. First operand 174 states and 229 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:57:19,293 INFO L93 Difference]: Finished difference Result 236 states and 298 transitions. [2022-07-14 15:57:19,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:57:19,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 298 transitions. [2022-07-14 15:57:19,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2022-07-14 15:57:19,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 236 states and 298 transitions. [2022-07-14 15:57:19,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2022-07-14 15:57:19,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2022-07-14 15:57:19,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 298 transitions. [2022-07-14 15:57:19,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:57:19,298 INFO L369 hiAutomatonCegarLoop]: Abstraction has 236 states and 298 transitions. [2022-07-14 15:57:19,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 298 transitions. [2022-07-14 15:57:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-07-14 15:57:19,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 236 states have (on average 1.2627118644067796) internal successors, (298), 235 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 298 transitions. [2022-07-14 15:57:19,305 INFO L392 hiAutomatonCegarLoop]: Abstraction has 236 states and 298 transitions. [2022-07-14 15:57:19,305 INFO L374 stractBuchiCegarLoop]: Abstraction has 236 states and 298 transitions. [2022-07-14 15:57:19,305 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:57:19,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 298 transitions. [2022-07-14 15:57:19,307 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2022-07-14 15:57:19,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:19,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:19,308 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:19,308 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:19,308 INFO L752 eck$LassoCheckResult]: Stem: 980#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 898#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 804#L615 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 805#L608 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 798#L623 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 799#L258 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 885#L231 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 938#L536-2 [2022-07-14 15:57:19,309 INFO L754 eck$LassoCheckResult]: Loop: 938#L536-2 assume !false; 939#L537 assume test_~splverifierCounter~0#1 < 4; 951#L538 test_~tmp~7#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 893#L546 assume !(0 != test_~tmp~7#1); 801#L546-2 test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 900#L556 assume !(0 != test_~tmp___0~3#1); 854#L556-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 855#L566 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 912#L574 assume 0 != test_~tmp___1~0#1; 913#L574-2 assume { :begin_inline_timeShift } true; 922#L284 assume !(0 != ~pumpRunning~0); 863#L284-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 864#L342 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 892#L316-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret22#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 814#L150-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 815#L155-1 isHighWaterLevel_#t~ret22#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret22#1;havoc isHighWaterLevel_#t~ret22#1; 921#L462-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 969#L462-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 983#L468-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 970#L320-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 928#L308-2 assume { :end_inline_processEnvironment__wrappee__base } true; 797#L316-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 818#L342-1 assume { :end_inline_processEnvironment } true; 819#L291-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 899#L110-2 __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 883#L508 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 841#L508-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 880#L301 assume { :end_inline_timeShift } true; 938#L536-2 [2022-07-14 15:57:19,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-14 15:57:19,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:19,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694915199] [2022-07-14 15:57:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:19,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,323 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:19,339 INFO L85 PathProgramCache]: Analyzing trace with hash -44819893, now seen corresponding path program 1 times [2022-07-14 15:57:19,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:19,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195290639] [2022-07-14 15:57:19,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:19,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,359 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:19,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:19,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1295801841, now seen corresponding path program 1 times [2022-07-14 15:57:19,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:19,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897248552] [2022-07-14 15:57:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:19,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:19,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:21,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:57:21 BoogieIcfgContainer [2022-07-14 15:57:21,793 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:57:21,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:57:21,794 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:57:21,794 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:57:21,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:18" (3/4) ... [2022-07-14 15:57:21,796 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:57:21,825 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:57:21,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:57:21,826 INFO L158 Benchmark]: Toolchain (without parser) took 4046.64ms. Allocated memory was 88.1MB in the beginning and 176.2MB in the end (delta: 88.1MB). Free memory was 51.7MB in the beginning and 54.8MB in the end (delta: -3.1MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2022-07-14 15:57:21,826 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 58.2MB in the end (delta: 22.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:57:21,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.18ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 51.5MB in the beginning and 107.1MB in the end (delta: -55.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-07-14 15:57:21,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.32ms. Allocated memory is still 140.5MB. Free memory was 107.1MB in the beginning and 103.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:57:21,827 INFO L158 Benchmark]: Boogie Preprocessor took 36.21ms. Allocated memory is still 140.5MB. Free memory was 103.4MB in the beginning and 100.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:21,828 INFO L158 Benchmark]: RCFGBuilder took 484.46ms. Allocated memory is still 140.5MB. Free memory was 100.9MB in the beginning and 77.1MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-14 15:57:21,828 INFO L158 Benchmark]: BuchiAutomizer took 2972.63ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 76.6MB in the beginning and 56.9MB in the end (delta: 19.7MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2022-07-14 15:57:21,828 INFO L158 Benchmark]: Witness Printer took 31.96ms. Allocated memory is still 176.2MB. Free memory was 56.9MB in the beginning and 54.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:21,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 58.2MB in the end (delta: 22.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.18ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 51.5MB in the beginning and 107.1MB in the end (delta: -55.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.32ms. Allocated memory is still 140.5MB. Free memory was 107.1MB in the beginning and 103.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.21ms. Allocated memory is still 140.5MB. Free memory was 103.4MB in the beginning and 100.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 484.46ms. Allocated memory is still 140.5MB. Free memory was 100.9MB in the beginning and 77.1MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2972.63ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 76.6MB in the beginning and 56.9MB in the end (delta: 19.7MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. * Witness Printer took 31.96ms. Allocated memory is still 176.2MB. Free memory was 56.9MB in the beginning and 54.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 3 locations. The remainder module has 236 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 397 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 397 mSDsluCounter, 553 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 451 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 536]: 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 {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31aab933=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, NULL=1, tmp___0=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fa69d8e=0, retValue_acc=0, \result=1, \result=1, tmp=1, retValue_acc=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57e4bb95=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9b621a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@690c81ce=0, tmp=1, \result=0, tmp=0, head=0, tmp___1=29, retValue_acc=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72f56ae2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e7349ef=0, tmp=0, tmp=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b1dbeaf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18771f68=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77576f38=29, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 536]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L67] int waterLevel = 1; [L68] int methaneLevelCritical = 0; [L170] int cleanupTimeShifts = 4; [L276] int pumpRunning = 0; [L277] int systemActive = 1; [L797] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L619] int retValue_acc ; [L622] retValue_acc = 1 [L623] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L240] CALL test() [L527] int splverifierCounter ; [L528] int tmp ; [L529] int tmp___0 ; [L530] int tmp___1 ; [L531] int tmp___2 ; [L534] splverifierCounter = 0 Loop: [L536] COND TRUE 1 [L538] COND TRUE splverifierCounter < 4 [L544] tmp = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp)) [L554] tmp___0 = __VERIFIER_nondet_int() [L556] COND FALSE !(\read(tmp___0)) [L564] tmp___2 = __VERIFIER_nondet_int() [L566] COND FALSE !(\read(tmp___2)) [L572] tmp___1 = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp___1) [L581] CALL timeShift() [L284] COND FALSE !(\read(pumpRunning)) [L291] COND TRUE \read(systemActive) [L293] CALL processEnvironment() [L339] int tmp ; [L342] COND FALSE !(\read(pumpRunning)) [L357] CALL processEnvironment__wrappee__highWaterSensor() [L313] int tmp ; [L316] COND TRUE ! pumpRunning [L318] CALL, EXPR isHighWaterLevel() [L454] int retValue_acc ; [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isHighWaterSensorDry() [L147] int retValue_acc ; [L150] COND TRUE waterLevel < 2 [L151] retValue_acc = 1 [L152] return (retValue_acc); [L460] RET, EXPR isHighWaterSensorDry() [L460] tmp = isHighWaterSensorDry() [L462] COND TRUE \read(tmp) [L463] tmp___0 = 0 [L467] retValue_acc = tmp___0 [L468] return (retValue_acc); [L318] RET, EXPR isHighWaterLevel() [L318] tmp = isHighWaterLevel() [L320] COND FALSE !(\read(tmp)) [L326] FCALL processEnvironment__wrappee__base() [L357] RET processEnvironment__wrappee__highWaterSensor() [L293] RET processEnvironment() [L299] CALL __utac_acc__Specification1_spec__1() [L501] int tmp ; [L502] int tmp___0 ; [L506] CALL, EXPR isMethaneLevelCritical() [L106] int retValue_acc ; [L109] retValue_acc = methaneLevelCritical [L110] return (retValue_acc); [L506] RET, EXPR isMethaneLevelCritical() [L506] tmp = isMethaneLevelCritical() [L508] COND FALSE !(\read(tmp)) [L299] RET __utac_acc__Specification1_spec__1() [L581] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:57:21,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)