./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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_spec2_product43.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 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:40:08,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:40:08,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:40:08,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:40:08,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:40:08,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:40:08,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:40:08,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:40:08,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:40:08,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:40:08,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:40:08,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:40:08,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:40:08,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:40:08,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:40:08,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:40:08,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:40:08,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:40:08,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:40:08,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:40:08,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:40:08,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:40:08,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:40:08,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:40:08,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:40:08,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:40:08,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:40:08,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:40:08,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:40:08,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:40:08,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:40:08,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:40:08,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:40:08,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:40:08,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:40:08,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:40:08,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:40:08,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:40:08,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:40:08,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:40:08,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:40:08,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:40:08,498 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:40:08,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:40:08,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:40:08,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:40:08,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:40:08,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:40:08,502 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:40:08,502 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:40:08,502 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:40:08,502 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:40:08,503 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:40:08,503 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:40:08,503 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:40:08,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:40:08,503 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:40:08,504 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:40:08,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:40:08,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:40:08,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:40:08,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:40:08,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:40:08,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:40:08,505 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:40:08,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:40:08,505 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:40:08,505 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:40:08,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:40:08,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:40:08,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:40:08,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:40:08,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:40:08,507 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:40:08,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a [2021-12-28 09:40:08,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:40:08,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:40:08,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:40:08,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:40:08,810 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:40:08,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2021-12-28 09:40:08,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdee30005/02e969a0c0c942dba34884f17ca0366c/FLAG9f0ea2364 [2021-12-28 09:40:09,270 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:40:09,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2021-12-28 09:40:09,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdee30005/02e969a0c0c942dba34884f17ca0366c/FLAG9f0ea2364 [2021-12-28 09:40:09,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdee30005/02e969a0c0c942dba34884f17ca0366c [2021-12-28 09:40:09,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:40:09,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:40:09,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:09,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:40:09,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:40:09,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d45660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09, skipping insertion in model container [2021-12-28 09:40:09,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:40:09,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:40:09,608 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_spec2_product43.cil.c[18403,18416] [2021-12-28 09:40:09,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:09,620 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:40:09,680 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_spec2_product43.cil.c[18403,18416] [2021-12-28 09:40:09,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:09,691 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:40:09,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09 WrapperNode [2021-12-28 09:40:09,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:09,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:09,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:40:09,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:40:09,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,759 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 51, calls inlined = 59, statements flattened = 475 [2021-12-28 09:40:09,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:09,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:40:09,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:40:09,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:40:09,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:40:09,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:40:09,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:40:09,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:40:09,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (1/1) ... [2021-12-28 09:40:09,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:40:09,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:40:09,828 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) [2021-12-28 09:40:09,838 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 [2021-12-28 09:40:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:40:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:40:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:40:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:40:09,917 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:40:09,918 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:40:10,206 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:40:10,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:40:10,210 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:40:10,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:10 BoogieIcfgContainer [2021-12-28 09:40:10,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:40:10,213 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:40:10,213 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:40:10,215 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:40:10,216 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:10,216 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:40:09" (1/3) ... [2021-12-28 09:40:10,217 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c56451b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:10, skipping insertion in model container [2021-12-28 09:40:10,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:10,217 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:09" (2/3) ... [2021-12-28 09:40:10,217 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c56451b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:10, skipping insertion in model container [2021-12-28 09:40:10,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:10,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:10" (3/3) ... [2021-12-28 09:40:10,229 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2021-12-28 09:40:10,268 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:40:10,268 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:40:10,268 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:40:10,268 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:40:10,269 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:40:10,269 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:40:10,269 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:40:10,269 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:40:10,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.3790322580645162) internal successors, (171), 124 states have internal predecessors, (171), 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) [2021-12-28 09:40:10,305 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2021-12-28 09:40:10,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:10,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:10,310 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:10,311 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:10,311 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:40:10,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.3790322580645162) internal successors, (171), 124 states have internal predecessors, (171), 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) [2021-12-28 09:40:10,322 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2021-12-28 09:40:10,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:10,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:10,323 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:10,323 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:10,330 INFO L791 eck$LassoCheckResult]: Stem: 114#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 28#L643true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 90#L636true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 112#L651true main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 25#L607true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 40#L578true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 30#L664true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 116#L708-2true [2021-12-28 09:40:10,332 INFO L793 eck$LassoCheckResult]: Loop: 116#L708-2true assume !false; 111#L709true assume test_~splverifierCounter~0#1 < 4; 65#L710true test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 87#L718true assume !(0 != test_~tmp~5#1); 120#L718-2true test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 58#L728true assume !(0 != test_~tmp___0~1#1); 17#L728-2true test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 50#L738true assume 0 != test_~tmp___2~0#1; 80#L744-2true assume { :begin_inline_timeShift } true; 81#L774true assume !(0 != ~pumpRunning~0); 51#L774-2true assume !(0 != ~systemActive~0); 14#L781-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 68#L100-1true __utac_acc__Specification2_spec__2_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret34#1;havoc __utac_acc__Specification2_spec__2_#t~ret34#1; 62#L675true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 83#L675-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 24#L791true assume { :end_inline_timeShift } true; 116#L708-2true [2021-12-28 09:40:10,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:10,336 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-28 09:40:10,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:10,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114744580] [2021-12-28 09:40:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:10,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,418 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,455 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:10,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:10,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1535340682, now seen corresponding path program 1 times [2021-12-28 09:40:10,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:10,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092558327] [2021-12-28 09:40:10,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:10,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,475 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,486 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:10,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:10,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1373053299, now seen corresponding path program 1 times [2021-12-28 09:40:10,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:10,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751996185] [2021-12-28 09:40:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:10,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:10,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:10,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:10,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751996185] [2021-12-28 09:40:10,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751996185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:10,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:10,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:40:10,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654850463] [2021-12-28 09:40:10,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:10,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:10,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:40:10,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:40:10,713 INFO L87 Difference]: Start difference. First operand has 125 states, 124 states have (on average 1.3790322580645162) internal successors, (171), 124 states have internal predecessors, (171), 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 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-12-28 09:40:10,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:10,788 INFO L93 Difference]: Finished difference Result 303 states and 396 transitions. [2021-12-28 09:40:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:40:10,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 396 transitions. [2021-12-28 09:40:10,797 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 193 [2021-12-28 09:40:10,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 273 states and 366 transitions. [2021-12-28 09:40:10,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 273 [2021-12-28 09:40:10,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 273 [2021-12-28 09:40:10,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 273 states and 366 transitions. [2021-12-28 09:40:10,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:10,803 INFO L681 BuchiCegarLoop]: Abstraction has 273 states and 366 transitions. [2021-12-28 09:40:10,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states and 366 transitions. [2021-12-28 09:40:10,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 167. [2021-12-28 09:40:10,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.341317365269461) internal successors, (224), 166 states have internal predecessors, (224), 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) [2021-12-28 09:40:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 224 transitions. [2021-12-28 09:40:10,824 INFO L704 BuchiCegarLoop]: Abstraction has 167 states and 224 transitions. [2021-12-28 09:40:10,825 INFO L587 BuchiCegarLoop]: Abstraction has 167 states and 224 transitions. [2021-12-28 09:40:10,825 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:40:10,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 224 transitions. [2021-12-28 09:40:10,825 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 118 [2021-12-28 09:40:10,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:10,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:10,826 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:10,826 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:10,826 INFO L791 eck$LassoCheckResult]: Stem: 556#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 496#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 489#L643 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 490#L636 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 548#L651 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 484#L607 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 485#L578 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 494#L664 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 483#L708-2 [2021-12-28 09:40:10,826 INFO L793 eck$LassoCheckResult]: Loop: 483#L708-2 assume !false; 555#L709 assume test_~splverifierCounter~0#1 < 4; 530#L710 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 531#L718 assume !(0 != test_~tmp~5#1); 547#L718-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 523#L728 assume !(0 != test_~tmp___0~1#1); 454#L728-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 475#L738 assume 0 != test_~tmp___2~0#1; 492#L744-2 assume { :begin_inline_timeShift } true; 543#L774 assume !(0 != ~pumpRunning~0); 476#L774-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 516#L806 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 532#L798-1 assume { :end_inline_processEnvironment__wrappee__base } true; 488#L806-1 assume { :end_inline_processEnvironment } true; 469#L781-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 470#L100-1 __utac_acc__Specification2_spec__2_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret34#1;havoc __utac_acc__Specification2_spec__2_#t~ret34#1; 527#L675 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 528#L675-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 482#L791 assume { :end_inline_timeShift } true; 483#L708-2 [2021-12-28 09:40:10,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-28 09:40:10,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:10,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117836714] [2021-12-28 09:40:10,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:10,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,837 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,849 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:10,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:10,849 INFO L85 PathProgramCache]: Analyzing trace with hash -648817642, now seen corresponding path program 1 times [2021-12-28 09:40:10,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:10,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797126408] [2021-12-28 09:40:10,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:10,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:10,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:10,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797126408] [2021-12-28 09:40:10,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797126408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:10,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:10,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:40:10,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218945881] [2021-12-28 09:40:10,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:10,871 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:40:10,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:10,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:40:10,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:40:10,871 INFO L87 Difference]: Start difference. First operand 167 states and 224 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-12-28 09:40:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:10,909 INFO L93 Difference]: Finished difference Result 220 states and 284 transitions. [2021-12-28 09:40:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:40:10,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 220 states and 284 transitions. [2021-12-28 09:40:10,911 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 159 [2021-12-28 09:40:10,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 220 states to 220 states and 284 transitions. [2021-12-28 09:40:10,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 220 [2021-12-28 09:40:10,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 220 [2021-12-28 09:40:10,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 220 states and 284 transitions. [2021-12-28 09:40:10,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:10,913 INFO L681 BuchiCegarLoop]: Abstraction has 220 states and 284 transitions. [2021-12-28 09:40:10,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states and 284 transitions. [2021-12-28 09:40:10,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-12-28 09:40:10,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 220 states have (on average 1.290909090909091) internal successors, (284), 219 states have internal predecessors, (284), 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) [2021-12-28 09:40:10,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 284 transitions. [2021-12-28 09:40:10,921 INFO L704 BuchiCegarLoop]: Abstraction has 220 states and 284 transitions. [2021-12-28 09:40:10,921 INFO L587 BuchiCegarLoop]: Abstraction has 220 states and 284 transitions. [2021-12-28 09:40:10,921 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:40:10,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 220 states and 284 transitions. [2021-12-28 09:40:10,922 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 159 [2021-12-28 09:40:10,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:10,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:10,922 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:10,922 INFO L843 BuchiCegarLoop]: 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] [2021-12-28 09:40:10,923 INFO L791 eck$LassoCheckResult]: Stem: 960#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 891#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 882#L643 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 883#L636 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 948#L651 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 876#L607 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 877#L578 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 887#L664 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 875#L708-2 [2021-12-28 09:40:10,923 INFO L793 eck$LassoCheckResult]: Loop: 875#L708-2 assume !false; 959#L709 assume test_~splverifierCounter~0#1 < 4; 929#L710 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 930#L718 assume !(0 != test_~tmp~5#1); 947#L718-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1005#L728 assume !(0 != test_~tmp___0~1#1); 1002#L728-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 912#L738 assume 0 != test_~tmp___2~0#1; 885#L744-2 assume { :begin_inline_timeShift } true; 943#L774 assume !(0 != ~pumpRunning~0); 913#L774-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 914#L806 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 910#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 911#L145 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 915#L926 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 952#L926-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 938#L932 processEnvironment_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret40#1;havoc processEnvironment_#t~ret40#1; 841#L810 assume !(0 != processEnvironment_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 843#L798 assume { :end_inline_processEnvironment__wrappee__base } true; 881#L806-1 assume { :end_inline_processEnvironment } true; 861#L781-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 862#L100-1 __utac_acc__Specification2_spec__2_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret34#1;havoc __utac_acc__Specification2_spec__2_#t~ret34#1; 926#L675 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 927#L675-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 874#L791 assume { :end_inline_timeShift } true; 875#L708-2 [2021-12-28 09:40:10,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:10,923 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-28 09:40:10,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:10,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671571145] [2021-12-28 09:40:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:10,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,933 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:10,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:10,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2046804478, now seen corresponding path program 1 times [2021-12-28 09:40:10,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:10,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345729497] [2021-12-28 09:40:10,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:10,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,961 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,966 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:10,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:10,966 INFO L85 PathProgramCache]: Analyzing trace with hash -978712779, now seen corresponding path program 1 times [2021-12-28 09:40:10,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:10,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932008486] [2021-12-28 09:40:10,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:10,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,978 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:10,992 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:13,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:40:13 BoogieIcfgContainer [2021-12-28 09:40:13,975 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:40:13,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:40:13,976 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:40:13,976 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:40:13,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:10" (3/4) ... [2021-12-28 09:40:13,978 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:40:14,084 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:40:14,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:40:14,085 INFO L158 Benchmark]: Toolchain (without parser) took 4783.10ms. Allocated memory was 54.5MB in the beginning and 121.6MB in the end (delta: 67.1MB). Free memory was 32.4MB in the beginning and 58.8MB in the end (delta: -26.4MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2021-12-28 09:40:14,085 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 35.5MB in the beginning and 35.5MB in the end (delta: 41.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:14,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.24ms. Allocated memory is still 54.5MB. Free memory was 32.2MB in the beginning and 29.4MB in the end (delta: 2.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2021-12-28 09:40:14,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.21ms. Allocated memory is still 54.5MB. Free memory was 29.4MB in the beginning and 26.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:14,099 INFO L158 Benchmark]: Boogie Preprocessor took 25.38ms. Allocated memory is still 54.5MB. Free memory was 26.3MB in the beginning and 24.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:14,100 INFO L158 Benchmark]: RCFGBuilder took 424.14ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 24.3MB in the beginning and 35.8MB in the end (delta: -11.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-12-28 09:40:14,100 INFO L158 Benchmark]: BuchiAutomizer took 3762.74ms. Allocated memory was 71.3MB in the beginning and 121.6MB in the end (delta: 50.3MB). Free memory was 35.5MB in the beginning and 61.9MB in the end (delta: -26.3MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:14,101 INFO L158 Benchmark]: Witness Printer took 108.30ms. Allocated memory is still 121.6MB. Free memory was 61.9MB in the beginning and 58.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:14,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 35.5MB in the beginning and 35.5MB in the end (delta: 41.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.24ms. Allocated memory is still 54.5MB. Free memory was 32.2MB in the beginning and 29.4MB in the end (delta: 2.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.21ms. Allocated memory is still 54.5MB. Free memory was 29.4MB in the beginning and 26.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.38ms. Allocated memory is still 54.5MB. Free memory was 26.3MB in the beginning and 24.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.14ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 24.3MB in the beginning and 35.8MB in the end (delta: -11.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3762.74ms. Allocated memory was 71.3MB in the beginning and 121.6MB in the end (delta: 50.3MB). Free memory was 35.5MB in the beginning and 61.9MB in the end (delta: -26.3MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * Witness Printer took 108.30ms. Allocated memory is still 121.6MB. Free memory was 61.9MB in the beginning and 58.8MB in the end (delta: 3.1MB). 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 6 locations. The remainder module has 220 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. 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, 106 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 220 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 850 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 850 mSDsluCounter, 1074 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 768 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 306 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 708]: 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, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f96b82b=0, tmp___0=0, retValue_acc=1, tmp=0, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54dad5fb=29, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@214b93dd=0, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42c87bdd=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30cf321e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b89a553=0, tmp___2=29, methAndRunningLastTime=0, tmp=1, cleanupTimeShifts=4, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37cf3c94=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f97f514=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@290ebc75=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 708]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L517] int cleanupTimeShifts = 4; [L658] int methAndRunningLastTime ; [L767] int pumpRunning = 0; [L768] int systemActive = 1; [L598] int retValue_acc ; [L599] int tmp ; [L603] FCALL select_helpers() [L604] FCALL select_features() [L605] CALL, EXPR valid_product() [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); [L605] RET, EXPR valid_product() [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) [L609] FCALL setup() [L610] CALL runTest() [L588] CALL __utac_acc__Specification2_spec__1() [L663] methAndRunningLastTime = 0 [L588] RET __utac_acc__Specification2_spec__1() [L589] CALL test() [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 Loop: [L708] COND TRUE 1 [L710] COND TRUE splverifierCounter < 4 [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L753] CALL timeShift() [L774] COND FALSE !(\read(pumpRunning)) [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; [L806] COND TRUE ! pumpRunning [L808] CALL, EXPR isHighWaterLevel() [L918] int retValue_acc ; [L919] int tmp ; [L920] int tmp___0 ; [L924] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L924] RET, EXPR isHighWaterSensorDry() [L924] tmp = isHighWaterSensorDry() [L926] COND TRUE \read(tmp) [L927] tmp___0 = 0 [L931] retValue_acc = tmp___0 [L932] return (retValue_acc); [L808] RET, EXPR isHighWaterLevel() [L808] tmp = isHighWaterLevel() [L810] COND FALSE !(\read(tmp)) [L816] FCALL processEnvironment__wrappee__base() [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L668] int tmp ; [L669] int tmp___0 ; [L673] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L691] methAndRunningLastTime = 0 [L789] RET __utac_acc__Specification2_spec__2() [L753] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:40:14,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)