./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product22.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_product22.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 062932e2a77eaa56a60a5c6bf9705187ac9d312a ..................................................................................................................................................................................................................................................................................................................................................................................... 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 16:02:09,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:02:09,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:02:09,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:02:09,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:02:09,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:02:09,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:02:09,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:02:09,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:02:09,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:02:09,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:02:09,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:02:09,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:02:09,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:02:09,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:02:09,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:02:09,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:02:09,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:02:09,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:02:09,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:02:09,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:02:09,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:02:09,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:02:09,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:02:09,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:02:09,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:02:09,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:02:09,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:02:09,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:02:09,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:02:09,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:02:09,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:02:09,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:02:09,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:02:09,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:02:09,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:02:09,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:02:09,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:02:09,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:02:09,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:02:09,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:02:09,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:02:09,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:02:09,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:02:09,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:02:09,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:02:09,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:02:09,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:02:09,509 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:02:09,509 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:02:09,509 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:02:09,509 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:02:09,510 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:02:09,510 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:02:09,510 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:02:09,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:02:09,511 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:02:09,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:02:09,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:02:09,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:02:09,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:02:09,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:02:09,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:02:09,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:02:09,512 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:02:09,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:02:09,512 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:02:09,513 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:02:09,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:02:09,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:02:09,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:02:09,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:02:09,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:02:09,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:02:09,515 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:02:09,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 062932e2a77eaa56a60a5c6bf9705187ac9d312a [2021-08-27 16:02:09,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:02:09,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:02:09,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:02:09,882 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:02:09,883 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:02:09,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c [2021-08-27 16:02:09,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/905990c00/3f082bf8aeb04548878216016a6c6cb7/FLAG4ebb3fbb0 [2021-08-27 16:02:10,450 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:02:10,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c [2021-08-27 16:02:10,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/905990c00/3f082bf8aeb04548878216016a6c6cb7/FLAG4ebb3fbb0 [2021-08-27 16:02:10,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/905990c00/3f082bf8aeb04548878216016a6c6cb7 [2021-08-27 16:02:10,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:02:10,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:02:10,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:02:10,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:02:10,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:02:10,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:02:10" (1/1) ... [2021-08-27 16:02:10,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f2a709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:10, skipping insertion in model container [2021-08-27 16:02:10,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:02:10" (1/1) ... [2021-08-27 16:02:10,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:02:10,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:02:11,110 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_product22.cil.c[15812,15825] [2021-08-27 16:02:11,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:02:11,134 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:02:11,209 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_product22.cil.c[15812,15825] [2021-08-27 16:02:11,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:02:11,238 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:02:11,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11 WrapperNode [2021-08-27 16:02:11,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:02:11,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:02:11,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:02:11,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:02:11,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:02:11,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:02:11,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:02:11,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:02:11,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:02:11,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:02:11,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:02:11,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:02:11,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (1/1) ... [2021-08-27 16:02:11,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:02:11,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:02:11,410 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 16:02:11,421 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 16:02:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:02:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:02:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:02:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:02:12,231 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:02:12,232 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-08-27 16:02:12,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:02:12 BoogieIcfgContainer [2021-08-27 16:02:12,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:02:12,234 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:02:12,235 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:02:12,237 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:02:12,238 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:02:12,238 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:02:10" (1/3) ... [2021-08-27 16:02:12,239 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68d82bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:02:12, skipping insertion in model container [2021-08-27 16:02:12,239 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:02:12,239 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:11" (2/3) ... [2021-08-27 16:02:12,239 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68d82bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:02:12, skipping insertion in model container [2021-08-27 16:02:12,240 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:02:12,240 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:02:12" (3/3) ... [2021-08-27 16:02:12,241 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product22.cil.c [2021-08-27 16:02:12,275 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:02:12,275 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:02:12,275 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:02:12,275 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:02:12,276 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:02:12,276 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:02:12,276 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:02:12,276 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:02:12,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.5238095238095237) internal successors, (160), 105 states have internal predecessors, (160), 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 16:02:12,309 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-08-27 16:02:12,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:02:12,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:02:12,316 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:12,316 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:12,317 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:02:12,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.5238095238095237) internal successors, (160), 105 states have internal predecessors, (160), 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 16:02:12,322 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-08-27 16:02:12,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:02:12,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:02:12,323 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:12,323 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:12,327 INFO L791 eck$LassoCheckResult]: Stem: 99#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 37#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 36#L936true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 10#L944true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 97#L500true assume 0 != main_~tmp~3; 22#L471true ~methAndRunningLastTime~0 := 0; 32#L791true havoc test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 52#L802-1true [2021-08-27 16:02:12,328 INFO L793 eck$LassoCheckResult]: Loop: 52#L802-1true assume !false; 30#L720true assume test_~splverifierCounter~0 < 4; 69#L721true test_~tmp~7 := test_#t~nondet63;havoc test_#t~nondet63; 35#L729true assume !(0 != test_~tmp~7); 44#L729-1true test_~tmp___0~1 := test_#t~nondet64;havoc test_#t~nondet64; 4#L739true assume !(0 != test_~tmp___0~1); 96#L739-1true test_~tmp___2~0 := test_#t~nondet65;havoc test_#t~nondet65; 8#L749true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 48#L757-2true assume !(0 != ~pumpRunning~0); 38#L530true assume !(0 != ~systemActive~0); 70#L537true havoc __utac_acc__Specification2_spec__2_#t~ret67, __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 72#L868-1true __utac_acc__Specification2_spec__2_#t~ret67 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret67;havoc __utac_acc__Specification2_spec__2_#t~ret67; 46#L802true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 52#L802-1true [2021-08-27 16:02:12,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:12,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:02:12,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:12,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142777459] [2021-08-27 16:02:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:12,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:12,567 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:12,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:12,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:12,717 INFO L82 PathProgramCache]: Analyzing trace with hash 4938827, now seen corresponding path program 1 times [2021-08-27 16:02:12,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:12,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685060528] [2021-08-27 16:02:12,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:12,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:02:12,777 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 16:02:12,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:02:12,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685060528] [2021-08-27 16:02:12,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685060528] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:02:12,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:02:12,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:02:12,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570213942] [2021-08-27 16:02:12,783 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:02:12,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:02:12,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:02:12,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:02:12,796 INFO L87 Difference]: Start difference. First operand has 106 states, 105 states have (on average 1.5238095238095237) internal successors, (160), 105 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 16:02:12,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:02:12,833 INFO L93 Difference]: Finished difference Result 106 states and 150 transitions. [2021-08-27 16:02:12,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:02:12,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 150 transitions. [2021-08-27 16:02:12,838 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 16:02:12,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 99 states and 142 transitions. [2021-08-27 16:02:12,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2021-08-27 16:02:12,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2021-08-27 16:02:12,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 142 transitions. [2021-08-27 16:02:12,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:02:12,844 INFO L681 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2021-08-27 16:02:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 142 transitions. [2021-08-27 16:02:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-08-27 16:02:12,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.4343434343434343) internal successors, (142), 98 states have internal predecessors, (142), 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 16:02:12,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2021-08-27 16:02:12,884 INFO L704 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2021-08-27 16:02:12,884 INFO L587 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2021-08-27 16:02:12,884 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:02:12,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 142 transitions. [2021-08-27 16:02:12,889 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 16:02:12,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:02:12,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:02:12,891 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:12,891 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:12,891 INFO L791 eck$LassoCheckResult]: Stem: 319#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 275#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 274#L936 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 233#L944 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 234#L500 assume 0 != main_~tmp~3; 252#L471 ~methAndRunningLastTime~0 := 0; 253#L791 havoc test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 240#L802-1 [2021-08-27 16:02:12,892 INFO L793 eck$LassoCheckResult]: Loop: 240#L802-1 assume !false; 265#L720 assume test_~splverifierCounter~0 < 4; 266#L721 test_~tmp~7 := test_#t~nondet63;havoc test_#t~nondet63; 271#L729 assume !(0 != test_~tmp~7); 273#L729-1 test_~tmp___0~1 := test_#t~nondet64;havoc test_#t~nondet64; 221#L739 assume !(0 != test_~tmp___0~1); 223#L739-1 test_~tmp___2~0 := test_#t~nondet65;havoc test_#t~nondet65; 229#L749 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 231#L757-2 assume !(0 != ~pumpRunning~0); 276#L530 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 277#L588 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret43, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 307#L562-1 assume !(0 != ~pumpRunning~0); 244#L537 havoc __utac_acc__Specification2_spec__2_#t~ret67, __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 303#L868-1 __utac_acc__Specification2_spec__2_#t~ret67 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret67;havoc __utac_acc__Specification2_spec__2_#t~ret67; 285#L802 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 240#L802-1 [2021-08-27 16:02:12,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:12,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:02:12,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:12,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351244188] [2021-08-27 16:02:12,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:12,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:12,955 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:13,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:13,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:13,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1698133379, now seen corresponding path program 1 times [2021-08-27 16:02:13,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:13,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252910543] [2021-08-27 16:02:13,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:13,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:13,044 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:13,052 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:13,055 INFO L82 PathProgramCache]: Analyzing trace with hash 235891831, now seen corresponding path program 1 times [2021-08-27 16:02:13,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:13,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777959004] [2021-08-27 16:02:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:13,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:13,130 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:13,187 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:55,434 WARN L207 SmtUtils]: Spent 42.04 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:03:37,184 WARN L207 SmtUtils]: Spent 20.04 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:03:37,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:03:37 BoogieIcfgContainer [2021-08-27 16:03:37,298 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:03:37,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:03:37,299 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:03:37,299 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:03:37,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:02:12" (3/4) ... [2021-08-27 16:03:37,302 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:03:37,344 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:03:37,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:03:37,345 INFO L168 Benchmark]: Toolchain (without parser) took 86569.78 ms. Allocated memory was 62.9 MB in the beginning and 96.5 MB in the end (delta: 33.6 MB). Free memory was 42.9 MB in the beginning and 38.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:37,346 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:03:37,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.99 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 39.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:37,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.75 ms. Allocated memory is still 62.9 MB. Free memory was 38.9 MB in the beginning and 35.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:37,347 INFO L168 Benchmark]: Boogie Preprocessor took 59.31 ms. Allocated memory is still 62.9 MB. Free memory was 35.5 MB in the beginning and 33.1 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:03:37,348 INFO L168 Benchmark]: RCFGBuilder took 856.58 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 32.9 MB in the beginning and 42.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:37,349 INFO L168 Benchmark]: BuchiAutomizer took 85063.82 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 42.3 MB in the beginning and 40.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:37,349 INFO L168 Benchmark]: Witness Printer took 45.52 ms. Allocated memory is still 96.5 MB. Free memory was 40.5 MB in the beginning and 38.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:37,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 462.99 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 39.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.75 ms. Allocated memory is still 62.9 MB. Free memory was 38.9 MB in the beginning and 35.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.31 ms. Allocated memory is still 62.9 MB. Free memory was 35.5 MB in the beginning and 33.1 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 856.58 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 32.9 MB in the beginning and 42.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 85063.82 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 42.3 MB in the beginning and 40.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. * Witness Printer took 45.52 ms. Allocated memory is still 96.5 MB. Free memory was 40.5 MB in the beginning and 38.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 99 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 85.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 84.8s. 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 28.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 99 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 147 SDtfs, 147 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.3ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 719]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=16027, NULL=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a4a5f1e=0, NULL=0, NULL=16051, NULL=16032, methaneLevelCritical=0, NULL=16041, retValue_acc=1, NULL=16031, tmp=0, tmp=0, tmp___1=0, NULL=16050, NULL=0, NULL=0, NULL=16037, NULL=16043, NULL=16044, cleanupTimeShifts=4, NULL=16045, NULL=16048, NULL=16047, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e6273b4=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@707cc5f8=0, NULL=0, NULL=16029, NULL=0, NULL=0, NULL=0, NULL=16038, \result=1, head=0, pumpRunning=0, NULL=16042, NULL=16035, \result=0, tmp=1, NULL=16036, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=16052, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c3f574a=0, NULL=0, NULL=16028, NULL=0, NULL=0, NULL=16054, NULL=0, tmp___2=64, NULL=16053, tmp___0=0, NULL=16034, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=16046, NULL=16030, NULL=16040, NULL=16033, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4897462a=64, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3481d3ac=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cb28802=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@469c89b2=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c393fc8=0, NULL=16049, NULL=0, NULL=0, NULL=16039, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L522] int pumpRunning = 0; [L523] int systemActive = 1; [L785] int methAndRunningLastTime ; [L825] int waterLevel = 1; [L826] int methaneLevelCritical = 0; [L491] int retValue_acc ; [L492] int tmp ; [L940] int retValue_acc ; [L943] retValue_acc = 1 [L944] return (retValue_acc); [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L790] methAndRunningLastTime = 0 [L710] int splverifierCounter ; [L711] int tmp ; [L712] int tmp___0 ; [L713] int tmp___1 ; [L714] int tmp___2 ; [L717] splverifierCounter = 0 Loop: [L719] COND TRUE 1 [L721] COND TRUE splverifierCounter < 4 [L727] tmp = __VERIFIER_nondet_int() [L729] COND FALSE !(\read(tmp)) [L737] tmp___0 = __VERIFIER_nondet_int() [L739] COND FALSE !(\read(tmp___0)) [L747] tmp___2 = __VERIFIER_nondet_int() [L749] COND TRUE \read(tmp___2) [L704] systemActive = 1 [L530] COND FALSE !(\read(pumpRunning)) [L537] COND TRUE \read(systemActive) [L585] int tmp ; [L588] COND FALSE !(\read(pumpRunning)) [L559] int tmp ; [L562] COND FALSE !(\read(pumpRunning)) [L795] int tmp ; [L796] int tmp___0 ; [L864] int retValue_acc ; [L867] retValue_acc = methaneLevelCritical [L868] return (retValue_acc); [L800] tmp = isMethaneLevelCritical() [L802] COND FALSE !(\read(tmp)) [L818] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:03:37,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...