./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_product29.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 d8dfaf8ef68175aa3f4082d006a42419867490ad ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:54:59,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:54:59,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:54:59,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:54:59,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:54:59,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:54:59,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:54:59,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:54:59,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:54:59,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:54:59,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:54:59,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:54:59,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:54:59,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:54:59,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:54:59,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:54:59,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:54:59,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:54:59,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:54:59,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:54:59,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:54:59,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:54:59,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:54:59,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:54:59,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:54:59,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:54:59,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:54:59,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:54:59,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:54:59,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:54:59,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:54:59,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:54:59,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:54:59,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:54:59,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:54:59,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:54:59,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:54:59,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:54:59,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:54:59,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:54:59,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:54:59,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:54:59,595 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:54:59,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:54:59,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:54:59,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:54:59,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:54:59,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:54:59,598 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:54:59,599 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:54:59,599 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:54:59,599 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:54:59,600 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:54:59,600 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:54:59,600 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:54:59,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:54:59,600 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:54:59,601 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:54:59,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:54:59,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:54:59,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:54:59,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:54:59,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:54:59,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:54:59,602 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:54:59,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:54:59,602 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:54:59,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:54:59,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:54:59,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:54:59,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:54:59,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:54:59,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:54:59,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:54:59,604 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:54:59,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8dfaf8ef68175aa3f4082d006a42419867490ad [2021-08-27 15:54:59,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:54:59,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:54:59,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:54:59,855 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:54:59,855 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:54:59,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product29.cil.c [2021-08-27 15:54:59,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5bb2894a/fdf5e8c7bfe34d1b809c03fdaaa62138/FLAG19c89b8ea [2021-08-27 15:55:00,281 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:55:00,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product29.cil.c [2021-08-27 15:55:00,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5bb2894a/fdf5e8c7bfe34d1b809c03fdaaa62138/FLAG19c89b8ea [2021-08-27 15:55:00,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5bb2894a/fdf5e8c7bfe34d1b809c03fdaaa62138 [2021-08-27 15:55:00,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:55:00,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:55:00,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:55:00,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:55:00,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:55:00,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e08ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00, skipping insertion in model container [2021-08-27 15:55:00,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:55:00,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:55:00,608 WARN L228 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_product29.cil.c[17810,17823] [2021-08-27 15:55:00,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:55:00,621 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:55:00,697 WARN L228 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_product29.cil.c[17810,17823] [2021-08-27 15:55:00,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:55:00,718 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:55:00,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00 WrapperNode [2021-08-27 15:55:00,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:55:00,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:55:00,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:55:00,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:55:00,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:55:00,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:55:00,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:55:00,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:55:00,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:55:00,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:55:00,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:55:00,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:55:00,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (1/1) ... [2021-08-27 15:55:00,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:55:00,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:55:00,902 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) [2021-08-27 15:55:00,982 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 [2021-08-27 15:55:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:55:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:55:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:55:01,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:55:01,677 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:55:01,677 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2021-08-27 15:55:01,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:55:01 BoogieIcfgContainer [2021-08-27 15:55:01,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:55:01,679 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:55:01,679 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:55:01,681 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:55:01,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:55:01,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:55:00" (1/3) ... [2021-08-27 15:55:01,682 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@544b2dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:55:01, skipping insertion in model container [2021-08-27 15:55:01,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:55:01,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:00" (2/3) ... [2021-08-27 15:55:01,683 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@544b2dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:55:01, skipping insertion in model container [2021-08-27 15:55:01,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:55:01,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:55:01" (3/3) ... [2021-08-27 15:55:01,684 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product29.cil.c [2021-08-27 15:55:01,710 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:55:01,710 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:55:01,710 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:55:01,711 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:55:01,711 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:55:01,711 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:55:01,711 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:55:01,711 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:55:01,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-08-27 15:55:01,740 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 15:55:01,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:55:01,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:55:01,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:55:01,747 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:55:01,748 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:55:01,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-08-27 15:55:01,753 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 15:55:01,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:55:01,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:55:01,754 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:55:01,754 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:55:01,759 INFO L791 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 41#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 39#L436true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 78#L444true main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 67#L400true assume 0 != main_~tmp~5; 103#L374true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 97#L458-1true [2021-08-27 15:55:01,759 INFO L793 eck$LassoCheckResult]: Loop: 97#L458-1true assume !false; 104#L261true assume test_~splverifierCounter~0 < 4; 58#L262true test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 10#L270true assume !(0 != test_~tmp~4); 18#L270-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 76#L280true assume !(0 != test_~tmp___0~1); 35#L280-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 99#L290true assume 0 != test_~tmp___2~0; 37#L296-2true assume !(0 != ~pumpRunning~0); 83#L59true assume !(0 != ~systemActive~0); 34#L66true havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 74#L886-1true __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 85#L458true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 97#L458-1true [2021-08-27 15:55:01,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:01,764 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 15:55:01,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:01,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142918481] [2021-08-27 15:55:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:01,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:01,975 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:55:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:02,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:02,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1680298494, now seen corresponding path program 1 times [2021-08-27 15:55:02,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:02,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604713273] [2021-08-27 15:55:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:02,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:02,088 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:55:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:02,096 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:02,097 INFO L82 PathProgramCache]: Analyzing trace with hash 33980444, now seen corresponding path program 1 times [2021-08-27 15:55:02,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:02,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754820834] [2021-08-27 15:55:02,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:02,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:55:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:55:02,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:55:02,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754820834] [2021-08-27 15:55:02,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754820834] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:55:02,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:55:02,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 15:55:02,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564935684] [2021-08-27 15:55:02,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:55:02,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 15:55:02,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-27 15:55:02,336 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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 3.1666666666666665) internal successors, (19), 5 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) [2021-08-27 15:55:02,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:55:02,485 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2021-08-27 15:55:02,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 15:55:02,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 142 transitions. [2021-08-27 15:55:02,489 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-08-27 15:55:02,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2021-08-27 15:55:02,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2021-08-27 15:55:02,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-08-27 15:55:02,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2021-08-27 15:55:02,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:55:02,495 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-08-27 15:55:02,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2021-08-27 15:55:02,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-08-27 15:55:02,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 94 states have internal predecessors, (135), 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) [2021-08-27 15:55:02,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-08-27 15:55:02,514 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-08-27 15:55:02,515 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-08-27 15:55:02,515 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:55:02,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2021-08-27 15:55:02,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-08-27 15:55:02,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:55:02,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:55:02,516 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:55:02,516 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:55:02,517 INFO L791 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 300#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 297#L436 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 289#L444 main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 238#L400 assume 0 != main_~tmp~5; 239#L374 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 260#L458-1 [2021-08-27 15:55:02,517 INFO L793 eck$LassoCheckResult]: Loop: 260#L458-1 assume !false; 315#L261 assume test_~splverifierCounter~0 < 4; 312#L262 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 242#L270 assume !(0 != test_~tmp~4); 244#L270-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 261#L280 assume !(0 != test_~tmp___0~1); 283#L280-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 292#L290 assume 0 != test_~tmp___2~0; 295#L296-2 assume !(0 != ~pumpRunning~0); 293#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 231#L117 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret7, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 233#L91-1 assume !(0 != ~pumpRunning~0); 278#L66 havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 274#L886-1 __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 275#L458 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 260#L458-1 [2021-08-27 15:55:02,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:02,517 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 15:55:02,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:02,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872392101] [2021-08-27 15:55:02,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:02,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:02,546 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:55:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:02,581 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:02,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:02,582 INFO L82 PathProgramCache]: Analyzing trace with hash -2008522604, now seen corresponding path program 1 times [2021-08-27 15:55:02,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:02,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327257589] [2021-08-27 15:55:02,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:02,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:02,586 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:55:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:02,591 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:02,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:02,592 INFO L82 PathProgramCache]: Analyzing trace with hash 441062446, now seen corresponding path program 1 times [2021-08-27 15:55:02,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:02,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78692234] [2021-08-27 15:55:02,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:02,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:02,647 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:55:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:02,675 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:49,244 WARN L207 SmtUtils]: Spent 46.46 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 15:56:32,926 WARN L207 SmtUtils]: Spent 21.62 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 15:56:33,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:56:33 BoogieIcfgContainer [2021-08-27 15:56:33,014 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:56:33,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:56:33,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:56:33,014 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:56:33,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:55:01" (3/4) ... [2021-08-27 15:56:33,016 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:56:33,044 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:56:33,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:56:33,045 INFO L168 Benchmark]: Toolchain (without parser) took 92729.87 ms. Allocated memory was 50.3 MB in the beginning and 109.1 MB in the end (delta: 58.7 MB). Free memory was 27.1 MB in the beginning and 40.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:33,046 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.3 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:56:33,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.29 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 26.9 MB in the beginning and 45.9 MB in the end (delta: -19.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:33,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.17 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 42.5 MB in the end (delta: 3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:56:33,047 INFO L168 Benchmark]: Boogie Preprocessor took 49.28 ms. Allocated memory is still 65.0 MB. Free memory was 42.5 MB in the beginning and 39.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:33,047 INFO L168 Benchmark]: RCFGBuilder took 834.60 ms. Allocated memory is still 65.0 MB. Free memory was 39.9 MB in the beginning and 35.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:33,048 INFO L168 Benchmark]: BuchiAutomizer took 91334.63 ms. Allocated memory was 65.0 MB in the beginning and 109.1 MB in the end (delta: 44.0 MB). Free memory was 35.0 MB in the beginning and 42.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:33,048 INFO L168 Benchmark]: Witness Printer took 30.31 ms. Allocated memory is still 109.1 MB. Free memory was 42.7 MB in the beginning and 40.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:33,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.3 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 394.29 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 26.9 MB in the beginning and 45.9 MB in the end (delta: -19.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.17 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 42.5 MB in the end (delta: 3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.28 ms. Allocated memory is still 65.0 MB. Free memory was 42.5 MB in the beginning and 39.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 834.60 ms. Allocated memory is still 65.0 MB. Free memory was 39.9 MB in the beginning and 35.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 91334.63 ms. Allocated memory was 65.0 MB in the beginning and 109.1 MB in the end (delta: 44.0 MB). Free memory was 35.0 MB in the beginning and 42.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.1 GB. * Witness Printer took 30.31 ms. Allocated memory is still 109.1 MB. Free memory was 42.7 MB in the beginning and 40.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 91.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 91.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 11.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 137 SDtfs, 547 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 260]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10958} State at position 1 is {NULL=0, NULL=0, NULL=10984, NULL=0, NULL=10958, retValue_acc=0, NULL=10972, NULL=10964, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60c0cbf1=0, NULL=10982, NULL=10985, methaneLevelCritical=0, NULL=10981, NULL=0, NULL=0, tmp=0, NULL=10979, NULL=0, NULL=0, NULL=10960, NULL=0, tmp___1=0, tmp___0=0, NULL=0, NULL=0, NULL=10967, cleanupTimeShifts=4, NULL=10986, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=10966, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78d2d6fa=0, NULL=10959, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=10974, \result=1, NULL=10962, head=0, pumpRunning=0, NULL=10975, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7657522a=0, NULL=10978, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3372ece=0, tmp=0, NULL=10963, NULL=0, tmp=1, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43a5e6a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@406641f1=81, NULL=0, NULL=10976, NULL=10961, NULL=0, NULL=0, NULL=10980, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d404364=0, tmp___2=81, tmp___0=0, NULL=10983, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=10973, NULL=10977, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b0196e3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39908361=0, NULL=10968, tmp=0, head=0, NULL=0, tmp=0, NULL=10970, NULL=0, NULL=0, NULL=10971, NULL=0, NULL=10969, NULL=10965} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L645] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L391] int retValue_acc ; [L392] int tmp ; [L440] int retValue_acc ; [L443] retValue_acc = 1 [L444] return (retValue_acc); [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) [L251] int splverifierCounter ; [L252] int tmp ; [L253] int tmp___0 ; [L254] int tmp___1 ; [L255] int tmp___2 ; [L258] splverifierCounter = 0 Loop: [L260] COND TRUE 1 [L262] COND TRUE splverifierCounter < 4 [L268] tmp = __VERIFIER_nondet_int() [L270] COND FALSE !(\read(tmp)) [L278] tmp___0 = __VERIFIER_nondet_int() [L280] COND FALSE !(\read(tmp___0)) [L288] tmp___2 = __VERIFIER_nondet_int() [L290] COND TRUE \read(tmp___2) [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; [L91] COND FALSE !(\read(pumpRunning)) [L451] int tmp ; [L452] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); [L456] tmp = isMethaneLevelCritical() [L458] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:56:33,092 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...