./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product11.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_spec5_product11.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 2aecaafd474dd8c3ac5a8f35c72875e222b5af60 ................................................................................................................................................................................................................................................................................................................................................................................................ 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 16:21:28,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:21:28,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:21:28,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:21:28,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:21:28,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:21:28,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:21:28,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:21:28,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:21:28,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:21:28,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:21:28,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:21:28,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:21:28,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:21:28,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:21:28,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:21:28,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:21:28,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:21:28,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:21:28,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:21:28,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:21:28,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:21:28,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:21:28,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:21:28,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:21:28,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:21:28,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:21:28,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:21:28,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:21:28,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:21:28,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:21:28,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:21:28,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:21:28,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:21:28,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:21:28,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:21:28,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:21:28,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:21:28,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:21:28,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:21:28,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:21:28,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:21:28,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:21:28,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:21:28,291 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:21:28,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:21:28,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:21:28,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:21:28,292 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:21:28,292 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:21:28,292 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:21:28,292 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:21:28,293 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:21:28,293 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:21:28,293 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:21:28,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:21:28,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:21:28,293 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:21:28,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:21:28,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:21:28,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:21:28,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:21:28,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:21:28,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:21:28,294 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:21:28,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:21:28,294 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:21:28,295 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:21:28,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:21:28,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:21:28,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:21:28,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:21:28,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:21:28,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:21:28,296 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:21:28,296 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2aecaafd474dd8c3ac5a8f35c72875e222b5af60 [2021-08-27 16:21:28,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:21:28,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:21:28,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:21:28,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:21:28,559 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:21:28,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c [2021-08-27 16:21:28,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832686732/3dd702a0ed994c868e2086491dcaca12/FLAGbf7515858 [2021-08-27 16:21:29,018 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:21:29,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c [2021-08-27 16:21:29,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832686732/3dd702a0ed994c868e2086491dcaca12/FLAGbf7515858 [2021-08-27 16:21:29,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832686732/3dd702a0ed994c868e2086491dcaca12 [2021-08-27 16:21:29,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:21:29,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:21:29,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:21:29,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:21:29,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:21:29,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0418b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29, skipping insertion in model container [2021-08-27 16:21:29,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:21:29,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:21:29,189 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_spec5_product11.cil.c[2483,2496] [2021-08-27 16:21:29,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:21:29,320 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:21:29,343 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_spec5_product11.cil.c[2483,2496] [2021-08-27 16:21:29,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:21:29,382 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:21:29,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29 WrapperNode [2021-08-27 16:21:29,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:21:29,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:21:29,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:21:29,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:21:29,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:21:29,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:21:29,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:21:29,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:21:29,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:21:29,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:21:29,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:21:29,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:21:29,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (1/1) ... [2021-08-27 16:21:29,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:21:29,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:21:29,489 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 16:21:29,520 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 16:21:29,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:21:29,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:21:29,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:21:29,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:21:30,111 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:21:30,111 INFO L299 CfgBuilder]: Removed 84 assume(true) statements. [2021-08-27 16:21:30,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:21:30 BoogieIcfgContainer [2021-08-27 16:21:30,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:21:30,113 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:21:30,113 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:21:30,115 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:21:30,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:21:30,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:21:29" (1/3) ... [2021-08-27 16:21:30,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60c39921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:21:30, skipping insertion in model container [2021-08-27 16:21:30,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:21:30,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:21:29" (2/3) ... [2021-08-27 16:21:30,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60c39921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:21:30, skipping insertion in model container [2021-08-27 16:21:30,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:21:30,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:21:30" (3/3) ... [2021-08-27 16:21:30,119 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product11.cil.c [2021-08-27 16:21:30,152 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:21:30,152 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:21:30,152 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:21:30,152 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:21:30,152 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:21:30,153 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:21:30,153 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:21:30,153 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:21:30,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 65 states, 64 states have (on average 1.5) internal successors, (96), 64 states have internal predecessors, (96), 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 16:21:30,180 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:21:30,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:21:30,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:21:30,185 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:21:30,185 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:21:30,185 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:21:30,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 65 states, 64 states have (on average 1.5) internal successors, (96), 64 states have internal predecessors, (96), 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 16:21:30,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:21:30,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:21:30,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:21:30,195 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:21:30,195 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:21:30,199 INFO L791 eck$LassoCheckResult]: Stem: 55#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 43#L-1true havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 61#L263true 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; 33#L271true main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 29#L227true assume 0 != main_~tmp~0; 6#L198true ~switchedOnBeforeTS~0 := 0; 49#L864true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 63#L885-1true [2021-08-27 16:21:30,199 INFO L793 eck$LassoCheckResult]: Loop: 63#L885-1true assume !false; 41#L436true assume test_~splverifierCounter~0 < 4; 7#L437true test_~tmp~2 := test_#t~nondet37;havoc test_#t~nondet37; 42#L445true assume !(0 != test_~tmp~2); 45#L445-1true test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 5#L455true assume !(0 != test_~tmp___0~0); 19#L455-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 65#L465true assume 0 != test_~tmp___2~0; 44#L471-1true havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 38#L369true __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 14#L874true assume !(0 != ~pumpRunning~0); 23#L292true assume 0 != ~systemActive~0; 39#L299true havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 25#L123true __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 56#L885true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 63#L885-1true [2021-08-27 16:21:30,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:21:30,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:21:30,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:21:30,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274589495] [2021-08-27 16:21:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:21:30,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:21:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:30,393 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:21:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:30,490 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:21:30,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:21:30,498 INFO L82 PathProgramCache]: Analyzing trace with hash -242843208, now seen corresponding path program 1 times [2021-08-27 16:21:30,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:21:30,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109340613] [2021-08-27 16:21:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:21:30,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:21:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:30,504 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:21:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:30,517 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:21:30,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:21:30,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1691182002, now seen corresponding path program 1 times [2021-08-27 16:21:30,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:21:30,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626817665] [2021-08-27 16:21:30,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:21:30,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:21:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:21:30,629 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 16:21:30,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:21:30,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626817665] [2021-08-27 16:21:30,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626817665] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:21:30,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:21:30,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:21:30,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249384504] [2021-08-27 16:21:30,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:21:30,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 16:21:30,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 16:21:30,768 INFO L87 Difference]: Start difference. First operand has 65 states, 64 states have (on average 1.5) internal successors, (96), 64 states have internal predecessors, (96), 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 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:21:30,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:21:30,909 INFO L93 Difference]: Finished difference Result 218 states and 306 transitions. [2021-08-27 16:21:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 16:21:30,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 218 states and 306 transitions. [2021-08-27 16:21:30,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 131 [2021-08-27 16:21:30,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 218 states to 196 states and 284 transitions. [2021-08-27 16:21:30,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 196 [2021-08-27 16:21:30,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2021-08-27 16:21:30,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 284 transitions. [2021-08-27 16:21:30,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:21:30,921 INFO L681 BuchiCegarLoop]: Abstraction has 196 states and 284 transitions. [2021-08-27 16:21:30,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 284 transitions. [2021-08-27 16:21:30,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 106. [2021-08-27 16:21:30,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 105 states have internal predecessors, (146), 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 16:21:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 146 transitions. [2021-08-27 16:21:30,941 INFO L704 BuchiCegarLoop]: Abstraction has 106 states and 146 transitions. [2021-08-27 16:21:30,941 INFO L587 BuchiCegarLoop]: Abstraction has 106 states and 146 transitions. [2021-08-27 16:21:30,941 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:21:30,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 146 transitions. [2021-08-27 16:21:30,943 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2021-08-27 16:21:30,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:21:30,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:21:30,943 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:21:30,943 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:21:30,944 INFO L791 eck$LassoCheckResult]: Stem: 377#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 365#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 366#L263 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; 348#L271 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 344#L227 assume 0 != main_~tmp~0; 310#L198 ~switchedOnBeforeTS~0 := 0; 311#L864 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 370#L885-1 [2021-08-27 16:21:30,944 INFO L793 eck$LassoCheckResult]: Loop: 370#L885-1 assume !false; 362#L436 assume test_~splverifierCounter~0 < 4; 363#L437 test_~tmp~2 := test_#t~nondet37;havoc test_#t~nondet37; 364#L445 assume !(0 != test_~tmp~2); 355#L445-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 307#L455 assume !(0 != test_~tmp___0~0); 309#L455-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 333#L465 assume 0 != test_~tmp___2~0; 341#L471-1 havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 356#L369 __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 328#L874 assume !(0 != ~pumpRunning~0); 306#L292 assume 0 != ~systemActive~0; 336#L299 havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 338#L123 __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 339#L885 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 373#L369-1 __utac_acc__Specification5_spec__3_#t~ret78 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 374#L889 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 370#L885-1 [2021-08-27 16:21:30,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:21:30,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:21:30,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:21:30,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717168907] [2021-08-27 16:21:30,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:21:30,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:21:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:30,983 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:21:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:31,017 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:21:31,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:21:31,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1444103597, now seen corresponding path program 1 times [2021-08-27 16:21:31,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:21:31,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705685210] [2021-08-27 16:21:31,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:21:31,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:21:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:31,021 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:21:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:31,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:21:31,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:21:31,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1728251341, now seen corresponding path program 1 times [2021-08-27 16:21:31,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:21:31,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750256761] [2021-08-27 16:21:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:21:31,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:21:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:31,067 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:21:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:21:31,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:11,608 WARN L207 SmtUtils]: Spent 40.34 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:22:52,956 WARN L207 SmtUtils]: Spent 20.48 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:22:53,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:22:53 BoogieIcfgContainer [2021-08-27 16:22:53,051 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:22:53,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:22:53,052 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:22:53,052 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:22:53,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:21:30" (3/4) ... [2021-08-27 16:22:53,053 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:22:53,079 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:22:53,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:22:53,082 INFO L168 Benchmark]: Toolchain (without parser) took 84033.87 ms. Allocated memory was 65.0 MB in the beginning and 100.7 MB in the end (delta: 35.7 MB). Free memory was 44.4 MB in the beginning and 70.0 MB in the end (delta: -25.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:53,083 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 65.0 MB. Free memory was 47.0 MB in the beginning and 46.9 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:22:53,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.44 ms. Allocated memory is still 65.0 MB. Free memory was 44.2 MB in the beginning and 42.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:53,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.42 ms. Allocated memory is still 65.0 MB. Free memory was 42.4 MB in the beginning and 39.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:53,084 INFO L168 Benchmark]: Boogie Preprocessor took 18.13 ms. Allocated memory is still 65.0 MB. Free memory was 39.5 MB in the beginning and 37.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:53,084 INFO L168 Benchmark]: RCFGBuilder took 653.07 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 37.6 MB in the beginning and 56.2 MB in the end (delta: -18.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:53,084 INFO L168 Benchmark]: BuchiAutomizer took 82938.14 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 56.2 MB in the beginning and 72.1 MB in the end (delta: -15.9 MB). Peak memory consumption was 56.4 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:53,085 INFO L168 Benchmark]: Witness Printer took 28.00 ms. Allocated memory is still 100.7 MB. Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:22:53,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 65.0 MB. Free memory was 47.0 MB in the beginning and 46.9 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 339.44 ms. Allocated memory is still 65.0 MB. Free memory was 44.2 MB in the beginning and 42.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.42 ms. Allocated memory is still 65.0 MB. Free memory was 42.4 MB in the beginning and 39.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.13 ms. Allocated memory is still 65.0 MB. Free memory was 39.5 MB in the beginning and 37.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 653.07 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 37.6 MB in the beginning and 56.2 MB in the end (delta: -18.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 82938.14 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 56.2 MB in the beginning and 72.1 MB in the end (delta: -15.9 MB). Peak memory consumption was 56.4 MB. Max. memory is 16.1 GB. * Witness Printer took 28.00 ms. Allocated memory is still 100.7 MB. Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 5 locations. The remainder module has 106 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 82.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 82.6s. 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 12.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 90 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 106 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 129 SDtfs, 292 SDslu, 334 SDs, 0 SdLazy, 78 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.4ms 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: 435]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18814} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=18817, NULL=0, retValue_acc=0, NULL=18814, NULL=18838, NULL=0, NULL=0, NULL=18831, NULL=18840, NULL=18833, methaneLevelCritical=0, NULL=18815, tmp=1, tmp=0, NULL=0, NULL=0, NULL=18832, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61847c4=0, NULL=0, NULL=0, NULL=0, NULL=18835, NULL=18841, cleanupTimeShifts=4, NULL=18830, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fdaa518=76, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68435f8f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ad28ca2=0, NULL=18816, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e4a7f8=0, NULL=0, systemActive=1, waterLevel=1, NULL=18828, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=18818, NULL=0, tmp___0=0, NULL=18826, NULL=18819, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, \result=0, tmp___0=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27170fd0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29a78627=0, NULL=0, retValue_acc=1, NULL=18824, NULL=18821, NULL=0, NULL=0, NULL=0, NULL=18839, tmp___2=76, NULL=18825, NULL=18827, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25fb5723=0, NULL=18842, NULL=18836, NULL=18837, NULL=18823, head=0, NULL=0, NULL=0, NULL=18822, NULL=0, NULL=18829, NULL=18820, NULL=0, NULL=18834, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L137] int cleanupTimeShifts = 4; [L280] int pumpRunning = 0; [L281] int systemActive = 1; [L661] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L858] int switchedOnBeforeTS ; [L218] int retValue_acc ; [L219] int tmp ; [L267] int retValue_acc ; [L270] retValue_acc = 1 [L271] return (retValue_acc); [L225] tmp = valid_product() [L227] COND TRUE \read(tmp) [L863] switchedOnBeforeTS = 0 [L426] int splverifierCounter ; [L427] int tmp ; [L428] int tmp___0 ; [L429] int tmp___1 ; [L430] int tmp___2 ; [L433] splverifierCounter = 0 Loop: [L435] COND TRUE 1 [L437] COND TRUE splverifierCounter < 4 [L443] tmp = __VERIFIER_nondet_int() [L445] COND FALSE !(\read(tmp)) [L453] tmp___0 = __VERIFIER_nondet_int() [L455] COND FALSE !(\read(tmp___0)) [L463] tmp___2 = __VERIFIER_nondet_int() [L465] COND TRUE \read(tmp___2) [L365] int retValue_acc ; [L368] retValue_acc = pumpRunning [L369] return (retValue_acc); [L872] switchedOnBeforeTS = isPumpRunning() [L292] COND FALSE !(\read(pumpRunning)) [L299] COND TRUE \read(systemActive) [L878] int tmp ; [L879] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L883] tmp = getWaterLevel() [L885] COND TRUE tmp != 2 [L365] int retValue_acc ; [L368] retValue_acc = pumpRunning [L369] return (retValue_acc); [L887] tmp___0 = isPumpRunning() [L889] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:22:53,125 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...