./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product05.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_spec2_product05.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 317a8f7f0ef35cb6895b3b81bb79fb4d1e43529f ................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:00:06,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:00:06,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:00:06,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:00:06,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:00:06,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:00:06,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:00:06,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:00:06,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:00:06,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:00:06,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:00:06,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:00:06,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:00:06,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:00:06,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:00:06,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:00:06,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:00:06,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:00:06,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:00:06,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:00:06,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:00:06,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:00:06,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:00:06,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:00:06,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:00:06,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:00:06,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:00:06,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:00:06,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:00:06,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:00:06,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:00:06,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:00:06,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:00:06,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:00:06,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:00:06,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:00:06,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:00:06,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:00:06,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:00:06,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:00:06,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:00:06,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:00:06,272 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:00:06,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:00:06,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:00:06,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:00:06,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:00:06,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:00:06,274 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:00:06,275 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:00:06,275 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:00:06,275 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:00:06,276 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:00:06,276 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:00:06,276 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:00:06,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:00:06,276 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:00:06,276 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:00:06,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:00:06,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:00:06,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:00:06,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:00:06,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:00:06,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:00:06,278 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:00:06,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:00:06,278 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:00:06,278 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:00:06,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:00:06,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:00:06,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:00:06,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:00:06,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:00:06,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:00:06,280 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:00:06,280 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 317a8f7f0ef35cb6895b3b81bb79fb4d1e43529f [2021-08-27 16:00:06,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:00:06,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:00:06,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:00:06,573 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:00:06,574 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:00:06,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c [2021-08-27 16:00:06,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8853da749/49a39c2929ca48d08571d8903e27be46/FLAGa823ab080 [2021-08-27 16:00:06,999 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:00:07,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c [2021-08-27 16:00:07,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8853da749/49a39c2929ca48d08571d8903e27be46/FLAGa823ab080 [2021-08-27 16:00:07,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8853da749/49a39c2929ca48d08571d8903e27be46 [2021-08-27 16:00:07,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:00:07,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:00:07,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:00:07,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:00:07,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:00:07,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76289966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07, skipping insertion in model container [2021-08-27 16:00:07,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:00:07,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:00:07,559 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_spec2_product05.cil.c[7436,7449] [2021-08-27 16:00:07,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:00:07,625 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:00:07,660 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_spec2_product05.cil.c[7436,7449] [2021-08-27 16:00:07,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:00:07,686 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:00:07,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07 WrapperNode [2021-08-27 16:00:07,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:00:07,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:00:07,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:00:07,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:00:07,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:00:07,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:00:07,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:00:07,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:00:07,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:00:07,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:00:07,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:00:07,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:00:07,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (1/1) ... [2021-08-27 16:00:07,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:00:07,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:00:07,756 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 16:00:07,773 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 16:00:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:00:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:00:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:00:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:00:08,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:00:08,385 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-08-27 16:00:08,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:00:08 BoogieIcfgContainer [2021-08-27 16:00:08,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:00:08,387 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:00:08,387 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:00:08,390 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:00:08,390 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:00:08,390 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:00:07" (1/3) ... [2021-08-27 16:00:08,391 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a927df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:00:08, skipping insertion in model container [2021-08-27 16:00:08,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:00:08,391 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:07" (2/3) ... [2021-08-27 16:00:08,392 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a927df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:00:08, skipping insertion in model container [2021-08-27 16:00:08,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:00:08,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:00:08" (3/3) ... [2021-08-27 16:00:08,393 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product05.cil.c [2021-08-27 16:00:08,425 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:00:08,425 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:00:08,425 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:00:08,425 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:00:08,425 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:00:08,425 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:00:08,426 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:00:08,426 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:00:08,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 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 16:00:08,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:00:08,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:00:08,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:00:08,460 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:08,460 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:08,460 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:00:08,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 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 16:00:08,463 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:00:08,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:00:08,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:00:08,464 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:08,464 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:08,467 INFO L791 eck$LassoCheckResult]: Stem: 53#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 44#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 57#L414true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 20#L422true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 55#L134true assume 0 != main_~tmp~0; 22#L105true ~methAndRunningLastTime~0 := 0; 7#L157true havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 59#L168-1true [2021-08-27 16:00:08,467 INFO L793 eck$LassoCheckResult]: Loop: 59#L168-1true assume !false; 65#L201true assume test_~splverifierCounter~0 < 4; 23#L202true test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 10#L210true assume !(0 != test_~tmp~2); 34#L210-1true test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 67#L220true assume !(0 != test_~tmp___0~1); 48#L220-1true test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 9#L230true assume 0 != test_~tmp___2~0; 62#L236-2true assume !(0 != ~pumpRunning~0); 15#L266true assume !(0 != ~systemActive~0); 64#L273true havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 45#L471-1true __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 6#L168true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 59#L168-1true [2021-08-27 16:00:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:08,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:00:08,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:08,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266642229] [2021-08-27 16:00:08,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:08,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:08,618 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:00:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:08,689 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:00:08,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:08,691 INFO L82 PathProgramCache]: Analyzing trace with hash 2383754, now seen corresponding path program 1 times [2021-08-27 16:00:08,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:08,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868573685] [2021-08-27 16:00:08,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:08,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:08,696 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:00:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:08,700 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:00:08,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:08,701 INFO L82 PathProgramCache]: Analyzing trace with hash 835680260, now seen corresponding path program 1 times [2021-08-27 16:00:08,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:08,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147629489] [2021-08-27 16:00:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:08,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:00:08,790 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 16:00:08,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:00:08,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147629489] [2021-08-27 16:00:08,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147629489] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:00:08,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:00:08,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 16:00:08,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892728727] [2021-08-27 16:00:08,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:00:08,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 16:00:08,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-27 16:00:08,948 INFO L87 Difference]: Start difference. First operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 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 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 16:00:09,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:00:09,073 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2021-08-27 16:00:09,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 16:00:09,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 95 transitions. [2021-08-27 16:00:09,076 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:00:09,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 63 states and 88 transitions. [2021-08-27 16:00:09,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2021-08-27 16:00:09,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2021-08-27 16:00:09,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 88 transitions. [2021-08-27 16:00:09,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:00:09,081 INFO L681 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-08-27 16:00:09,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 88 transitions. [2021-08-27 16:00:09,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-08-27 16:00:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 62 states have internal predecessors, (88), 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 16:00:09,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2021-08-27 16:00:09,098 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-08-27 16:00:09,098 INFO L587 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-08-27 16:00:09,098 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:00:09,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 88 transitions. [2021-08-27 16:00:09,099 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:00:09,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:00:09,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:00:09,100 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:09,100 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:09,100 INFO L791 eck$LassoCheckResult]: Stem: 217#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 211#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 212#L414 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 188#L422 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 189#L134 assume 0 != main_~tmp~0; 191#L105 ~methAndRunningLastTime~0 := 0; 164#L157 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 163#L168-1 [2021-08-27 16:00:09,100 INFO L793 eck$LassoCheckResult]: Loop: 163#L168-1 assume !false; 219#L201 assume test_~splverifierCounter~0 < 4; 192#L202 test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 170#L210 assume !(0 != test_~tmp~2); 172#L210-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 205#L220 assume !(0 != test_~tmp___0~1); 209#L220-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 165#L230 assume 0 != test_~tmp___2~0; 167#L236-2 assume !(0 != ~pumpRunning~0); 180#L266 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 181#L298 assume !(0 != ~pumpRunning~0); 184#L273 havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 210#L471-1 __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 162#L168 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 163#L168-1 [2021-08-27 16:00:09,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:09,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:00:09,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:09,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985515575] [2021-08-27 16:00:09,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:09,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:09,136 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:00:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:09,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:00:09,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:09,164 INFO L82 PathProgramCache]: Analyzing trace with hash 53367905, now seen corresponding path program 1 times [2021-08-27 16:00:09,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:09,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671373349] [2021-08-27 16:00:09,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:09,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:09,167 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:00:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:09,171 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:00:09,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:09,172 INFO L82 PathProgramCache]: Analyzing trace with hash 115755815, now seen corresponding path program 1 times [2021-08-27 16:00:09,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:09,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860500888] [2021-08-27 16:00:09,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:09,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:09,193 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:00:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:09,234 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:00:49,719 WARN L207 SmtUtils]: Spent 40.35 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:01:32,091 WARN L207 SmtUtils]: Spent 21.18 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:01:32,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:01:32 BoogieIcfgContainer [2021-08-27 16:01:32,165 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:01:32,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:01:32,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:01:32,166 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:01:32,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:00:08" (3/4) ... [2021-08-27 16:01:32,168 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:01:32,192 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:01:32,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:01:32,193 INFO L168 Benchmark]: Toolchain (without parser) took 84809.52 ms. Allocated memory was 54.5 MB in the beginning and 111.1 MB in the end (delta: 56.6 MB). Free memory was 32.5 MB in the beginning and 37.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:32,194 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 44.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:01:32,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.86 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 32.4 MB in the beginning and 46.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:32,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 69.2 MB. Free memory was 46.5 MB in the beginning and 43.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:32,195 INFO L168 Benchmark]: Boogie Preprocessor took 17.72 ms. Allocated memory is still 69.2 MB. Free memory was 43.7 MB in the beginning and 41.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:32,195 INFO L168 Benchmark]: RCFGBuilder took 647.28 ms. Allocated memory is still 69.2 MB. Free memory was 41.6 MB in the beginning and 46.1 MB in the end (delta: -4.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:32,196 INFO L168 Benchmark]: BuchiAutomizer took 83778.51 ms. Allocated memory was 69.2 MB in the beginning and 111.1 MB in the end (delta: 41.9 MB). Free memory was 46.1 MB in the beginning and 39.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 66.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:32,196 INFO L168 Benchmark]: Witness Printer took 27.03 ms. Allocated memory is still 111.1 MB. Free memory was 39.5 MB in the beginning and 37.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:32,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 44.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.86 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 32.4 MB in the beginning and 46.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 69.2 MB. Free memory was 46.5 MB in the beginning and 43.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.72 ms. Allocated memory is still 69.2 MB. Free memory was 43.7 MB in the beginning and 41.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 647.28 ms. Allocated memory is still 69.2 MB. Free memory was 41.6 MB in the beginning and 46.1 MB in the end (delta: -4.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 83778.51 ms. Allocated memory was 69.2 MB in the beginning and 111.1 MB in the end (delta: 41.9 MB). Free memory was 46.1 MB in the beginning and 39.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 66.7 MB. Max. memory is 16.1 GB. * Witness Printer took 27.03 ms. Allocated memory is still 111.1 MB. Free memory was 39.5 MB in the beginning and 37.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 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 63 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 83.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 83.5s. 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 9.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 63 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 90 SDtfs, 358 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.9ms 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: 200]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7968} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=7968, NULL=0, NULL=21699, NULL=0, NULL=21706, NULL=21713, NULL=0, NULL=21714, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a32b94c=0, NULL=21705, methaneLevelCritical=0, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ccbba33=0, tmp___1=0, NULL=21707, NULL=21696, NULL=0, NULL=0, NULL=21695, cleanupTimeShifts=4, NULL=21701, NULL=7971, NULL=21708, NULL=21693, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@721b3984=0, NULL=21712, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c2dc710=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, retValue_acc=0, NULL=7969, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=21709, NULL=21715, NULL=0, NULL=0, NULL=21717, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cfb9d90=0, NULL=0, NULL=0, tmp___0=0, retValue_acc=1, NULL=21703, NULL=0, NULL=0, NULL=21716, NULL=0, NULL=0, NULL=7970, tmp___2=51, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=21698, NULL=21711, NULL=21704, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23f535eb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e366682=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a59389=0, tmp=0, head=0, NULL=21710, NULL=21694, NULL=0, tmp=0, NULL=21702, NULL=21697, NULL=21700} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L151] int methAndRunningLastTime ; [L259] int pumpRunning = 0; [L260] int systemActive = 1; [L428] int waterLevel = 1; [L429] int methaneLevelCritical = 0; [L686] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L125] int retValue_acc ; [L126] int tmp ; [L418] int retValue_acc ; [L421] retValue_acc = 1 [L422] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L156] methAndRunningLastTime = 0 [L191] int splverifierCounter ; [L192] int tmp ; [L193] int tmp___0 ; [L194] int tmp___1 ; [L195] int tmp___2 ; [L198] splverifierCounter = 0 Loop: [L200] COND TRUE 1 [L202] COND TRUE splverifierCounter < 4 [L208] tmp = __VERIFIER_nondet_int() [L210] COND FALSE !(\read(tmp)) [L218] tmp___0 = __VERIFIER_nondet_int() [L220] COND FALSE !(\read(tmp___0)) [L228] tmp___2 = __VERIFIER_nondet_int() [L230] COND TRUE \read(tmp___2) [L266] COND FALSE !(\read(pumpRunning)) [L273] COND TRUE \read(systemActive) [L295] int tmp ; [L298] COND FALSE !(\read(pumpRunning)) [L161] int tmp ; [L162] int tmp___0 ; [L467] int retValue_acc ; [L470] retValue_acc = methaneLevelCritical [L471] return (retValue_acc); [L166] tmp = isMethaneLevelCritical() [L168] COND FALSE !(\read(tmp)) [L184] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:01:32,241 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...