./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product18.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 9399fd1973c407bf1d8cb1f825eaeba76c4c394b ................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:53:23,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:53:23,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:53:23,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:53:23,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:53:23,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:53:23,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:53:23,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:53:23,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:53:23,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:53:23,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:53:23,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:53:23,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:53:23,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:53:23,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:53:23,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:53:23,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:53:23,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:53:23,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:53:23,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:53:23,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:53:23,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:53:23,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:53:23,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:53:23,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:53:23,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:53:23,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:53:23,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:53:23,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:53:23,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:53:23,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:53:23,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:53:23,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:53:23,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:53:23,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:53:23,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:53:23,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:53:23,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:53:23,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:53:23,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:53:23,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:53:23,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:53:23,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:53:23,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:53:23,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:53:23,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:53:23,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:53:23,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:53:23,636 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:53:23,637 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:53:23,637 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:53:23,637 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:53:23,637 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:53:23,637 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:53:23,638 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:53:23,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:53:23,638 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:53:23,638 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:53:23,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:53:23,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:53:23,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:53:23,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:53:23,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:53:23,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:53:23,640 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:53:23,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:53:23,640 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:53:23,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:53:23,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:53:23,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:53:23,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:53:23,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:53:23,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:53:23,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:53:23,642 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:53:23,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9399fd1973c407bf1d8cb1f825eaeba76c4c394b [2021-08-27 15:53:23,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:53:23,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:53:23,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:53:23,983 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:53:23,984 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:53:23,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2021-08-27 15:53:24,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57a5a0e5e/1695505dff5544a68379f69196167cfd/FLAG99a775fed [2021-08-27 15:53:24,572 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:53:24,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2021-08-27 15:53:24,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57a5a0e5e/1695505dff5544a68379f69196167cfd/FLAG99a775fed [2021-08-27 15:53:24,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57a5a0e5e/1695505dff5544a68379f69196167cfd [2021-08-27 15:53:24,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:53:24,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:53:24,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:53:24,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:53:24,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:53:24,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:53:24" (1/1) ... [2021-08-27 15:53:24,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5c85b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:24, skipping insertion in model container [2021-08-27 15:53:24,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:53:24" (1/1) ... [2021-08-27 15:53:24,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:53:24,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:53:25,283 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c[16111,16124] [2021-08-27 15:53:25,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:53:25,312 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:53:25,385 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c[16111,16124] [2021-08-27 15:53:25,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:53:25,417 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:53:25,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25 WrapperNode [2021-08-27 15:53:25,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:53:25,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:53:25,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:53:25,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:53:25,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:53:25,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:53:25,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:53:25,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:53:25,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:53:25,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:53:25,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:53:25,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:53:25,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (1/1) ... [2021-08-27 15:53:25,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:53:25,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:53:25,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:53:25,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:53:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:53:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:53:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:53:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:53:26,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:53:26,320 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-08-27 15:53:26,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:53:26 BoogieIcfgContainer [2021-08-27 15:53:26,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:53:26,323 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:53:26,323 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:53:26,325 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:53:26,326 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:53:26,326 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:53:24" (1/3) ... [2021-08-27 15:53:26,327 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70f4f92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:53:26, skipping insertion in model container [2021-08-27 15:53:26,327 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:53:26,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:25" (2/3) ... [2021-08-27 15:53:26,327 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70f4f92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:53:26, skipping insertion in model container [2021-08-27 15:53:26,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:53:26,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:53:26" (3/3) ... [2021-08-27 15:53:26,329 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2021-08-27 15:53:26,362 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:53:26,362 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:53:26,362 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:53:26,363 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:53:26,363 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:53:26,363 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:53:26,363 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:53:26,363 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:53:26,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:53:26,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 15:53:26,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:53:26,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:53:26,400 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:53:26,400 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:53:26,400 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:53:26,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:53:26,405 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 15:53:26,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:53:26,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:53:26,406 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:53:26,406 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:53:26,410 INFO L791 eck$LassoCheckResult]: Stem: 52#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 37#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 41#L96true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 18#L104true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 68#L196true assume 0 != main_~tmp~1; 38#L172true havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 65#L53-1true [2021-08-27 15:53:26,411 INFO L793 eck$LassoCheckResult]: Loop: 65#L53-1true assume !false; 53#L387true assume test_~splverifierCounter~0 < 4; 22#L388true test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 26#L396true assume !(0 != test_~tmp~4); 24#L396-1true test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 35#L406true assume !(0 != test_~tmp___0~2); 47#L406-1true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 16#L416true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 12#L424-2true assume !(0 != ~pumpRunning~0); 71#L223true assume !(0 != ~systemActive~0); 7#L230true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 10#L862true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 30#L53true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 65#L53-1true [2021-08-27 15:53:26,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:26,416 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 15:53:26,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:26,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960178573] [2021-08-27 15:53:26,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:26,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:26,594 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:53:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:26,746 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:53:26,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:26,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1680729469, now seen corresponding path program 1 times [2021-08-27 15:53:26,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:26,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225308957] [2021-08-27 15:53:26,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:26,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:53:26,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:53:26,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:53:26,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225308957] [2021-08-27 15:53:26,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225308957] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:53:26,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:53:26,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:53:26,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128396285] [2021-08-27 15:53:26,829 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 15:53:26,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:53:26,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:53:26,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:53:26,853 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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 15:53:26,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:53:26,899 INFO L93 Difference]: Finished difference Result 72 states and 98 transitions. [2021-08-27 15:53:26,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:53:26,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2021-08-27 15:53:26,914 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 15:53:26,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2021-08-27 15:53:26,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2021-08-27 15:53:26,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2021-08-27 15:53:26,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2021-08-27 15:53:26,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:53:26,923 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-27 15:53:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2021-08-27 15:53:26,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-08-27 15:53:26,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 64 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:53:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2021-08-27 15:53:26,955 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-27 15:53:26,955 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-27 15:53:26,955 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:53:26,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2021-08-27 15:53:26,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 15:53:26,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:53:26,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:53:26,961 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:53:26,961 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:53:26,961 INFO L791 eck$LassoCheckResult]: Stem: 213#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 203#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 204#L96 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 180#L104 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 181#L196 assume 0 != main_~tmp~1; 205#L172 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 193#L53-1 [2021-08-27 15:53:26,962 INFO L793 eck$LassoCheckResult]: Loop: 193#L53-1 assume !false; 214#L387 assume test_~splverifierCounter~0 < 4; 185#L388 test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 186#L396 assume !(0 != test_~tmp~4); 187#L396-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 188#L406 assume !(0 != test_~tmp___0~2); 201#L406-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 172#L416 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 166#L424-2 assume !(0 != ~pumpRunning~0); 167#L223 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 176#L255 assume !(0 != ~pumpRunning~0); 156#L230 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 160#L862 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 163#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 193#L53-1 [2021-08-27 15:53:26,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:26,963 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 15:53:26,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:26,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976281141] [2021-08-27 15:53:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:26,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:27,020 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:53:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:27,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:53:27,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:27,098 INFO L82 PathProgramCache]: Analyzing trace with hash -589998917, now seen corresponding path program 1 times [2021-08-27 15:53:27,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:27,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555082790] [2021-08-27 15:53:27,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:27,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:27,105 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:53:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:27,113 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:53:27,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:27,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1013040609, now seen corresponding path program 1 times [2021-08-27 15:53:27,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:27,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897740162] [2021-08-27 15:53:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:27,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:27,170 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:53:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:27,238 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:54:05,057 WARN L207 SmtUtils]: Spent 37.66 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 15:54:45,188 WARN L207 SmtUtils]: Spent 19.49 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 15:54:45,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:54:45 BoogieIcfgContainer [2021-08-27 15:54:45,304 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:54:45,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:54:45,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:54:45,305 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:54:45,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:53:26" (3/4) ... [2021-08-27 15:54:45,328 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:54:45,388 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:54:45,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:54:45,391 INFO L168 Benchmark]: Toolchain (without parser) took 80493.36 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 26.5 MB in the beginning and 36.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:54:45,392 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 32.7 MB in the beginning and 32.6 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:54:45,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.65 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.4 MB in the beginning and 37.3 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:54:45,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.95 ms. Allocated memory is still 60.8 MB. Free memory was 37.3 MB in the beginning and 34.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:54:45,395 INFO L168 Benchmark]: Boogie Preprocessor took 66.73 ms. Allocated memory is still 60.8 MB. Free memory was 34.4 MB in the beginning and 32.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:54:45,395 INFO L168 Benchmark]: RCFGBuilder took 757.08 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 32.3 MB in the beginning and 50.1 MB in the end (delta: -17.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:54:45,396 INFO L168 Benchmark]: BuchiAutomizer took 78980.98 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 49.7 MB in the beginning and 38.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:54:45,397 INFO L168 Benchmark]: Witness Printer took 85.70 ms. Allocated memory is still 88.1 MB. Free memory was 38.4 MB in the beginning and 36.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:54:45,401 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 32.7 MB in the beginning and 32.6 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 509.65 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.4 MB in the beginning and 37.3 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.95 ms. Allocated memory is still 60.8 MB. Free memory was 37.3 MB in the beginning and 34.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.73 ms. Allocated memory is still 60.8 MB. Free memory was 34.4 MB in the beginning and 32.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 757.08 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 32.3 MB in the beginning and 50.1 MB in the end (delta: -17.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 78980.98 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 49.7 MB in the beginning and 38.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.1 GB. * Witness Printer took 85.70 ms. Allocated memory is still 88.1 MB. Free memory was 38.4 MB in the beginning and 36.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 78.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 78.7s. 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 21.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 95 SDtfs, 95 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.5ms 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: 386]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7328} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=7339, NULL=0, retValue_acc=0, NULL=7328, NULL=0, NULL=7349, NULL=7346, NULL=7348, NULL=7329, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e7906a2=0, NULL=0, tmp=0, NULL=7336, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2721fd31=0, tmp___1=0, NULL=0, NULL=0, NULL=7350, tmp___0=0, NULL=7333, cleanupTimeShifts=4, NULL=7357, NULL=7334, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2915540c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11101d55=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@649b98d4=0, systemActive=1, waterLevel=1, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=7355, \result=1, NULL=7353, head=0, pumpRunning=0, NULL=7340, \result=0, NULL=7332, NULL=7342, NULL=7341, tmp=1, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@eba9d63=83, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a682298=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58746905=0, NULL=0, NULL=7345, NULL=7338, NULL=0, NULL=0, NULL=7354, NULL=0, retValue_acc=1, tmp___2=83, tmp___0=0, NULL=7335, splverifierCounter=0, NULL=0, \result=0, NULL=7351, NULL=7330, NULL=7347, tmp=0, head=0, NULL=0, NULL=0, NULL=7337, NULL=0, NULL=0, NULL=7356, NULL=0, NULL=7331, NULL=7344, NULL=7343} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L109] int cleanupTimeShifts = 4; [L216] int pumpRunning = 0; [L217] int systemActive = 1; [L612] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L819] int waterLevel = 1; [L820] int methaneLevelCritical = 0; [L187] int retValue_acc ; [L188] int tmp ; [L100] int retValue_acc ; [L103] retValue_acc = 1 [L104] return (retValue_acc); [L194] tmp = valid_product() [L196] COND TRUE \read(tmp) [L377] int splverifierCounter ; [L378] int tmp ; [L379] int tmp___0 ; [L380] int tmp___1 ; [L381] int tmp___2 ; [L384] splverifierCounter = 0 Loop: [L386] COND TRUE 1 [L388] COND TRUE splverifierCounter < 4 [L394] tmp = __VERIFIER_nondet_int() [L396] COND FALSE !(\read(tmp)) [L404] tmp___0 = __VERIFIER_nondet_int() [L406] COND FALSE !(\read(tmp___0)) [L414] tmp___2 = __VERIFIER_nondet_int() [L416] COND TRUE \read(tmp___2) [L371] systemActive = 1 [L223] COND FALSE !(\read(pumpRunning)) [L230] COND TRUE \read(systemActive) [L252] int tmp ; [L255] COND FALSE !(\read(pumpRunning)) [L46] int tmp ; [L47] int tmp___0 ; [L858] int retValue_acc ; [L861] retValue_acc = methaneLevelCritical [L862] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:54:45,509 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...