./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product04.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_spec4_product04.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 2ef680651bdd5006981e8c6524edc2b3eb658126 ............................................................................................................................................................................................................................................................................................................................................................................. 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 16:13:48,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:13:48,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:13:48,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:13:48,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:13:48,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:13:48,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:13:48,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:13:48,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:13:48,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:13:48,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:13:48,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:13:48,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:13:48,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:13:48,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:13:48,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:13:48,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:13:48,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:13:48,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:13:48,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:13:48,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:13:48,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:13:48,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:13:48,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:13:48,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:13:48,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:13:48,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:13:48,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:13:48,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:13:48,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:13:48,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:13:48,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:13:48,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:13:48,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:13:48,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:13:48,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:13:48,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:13:48,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:13:48,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:13:48,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:13:48,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:13:48,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:13:48,573 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:13:48,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:13:48,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:13:48,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:13:48,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:13:48,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:13:48,574 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:13:48,575 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:13:48,575 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:13:48,575 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:13:48,575 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:13:48,575 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:13:48,575 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:13:48,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:13:48,576 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:13:48,576 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:13:48,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:13:48,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:13:48,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:13:48,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:13:48,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:13:48,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:13:48,577 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:13:48,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:13:48,577 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:13:48,577 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:13:48,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:13:48,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:13:48,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:13:48,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:13:48,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:13:48,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:13:48,579 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:13:48,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ef680651bdd5006981e8c6524edc2b3eb658126 [2021-08-27 16:13:48,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:13:48,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:13:48,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:13:48,796 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:13:48,796 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:13:48,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2021-08-27 16:13:48,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d3fdb7f7/e2f185fa17df4e3ebb47d0e05a85a2c1/FLAG3105e410d [2021-08-27 16:13:49,202 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:13:49,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2021-08-27 16:13:49,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d3fdb7f7/e2f185fa17df4e3ebb47d0e05a85a2c1/FLAG3105e410d [2021-08-27 16:13:49,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d3fdb7f7/e2f185fa17df4e3ebb47d0e05a85a2c1 [2021-08-27 16:13:49,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:13:49,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:13:49,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:13:49,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:13:49,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:13:49,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5daca35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49, skipping insertion in model container [2021-08-27 16:13:49,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:13:49,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:13:49,471 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_spec4_product04.cil.c[16373,16386] [2021-08-27 16:13:49,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:13:49,485 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:13:49,551 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_spec4_product04.cil.c[16373,16386] [2021-08-27 16:13:49,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:13:49,563 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:13:49,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49 WrapperNode [2021-08-27 16:13:49,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:13:49,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:13:49,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:13:49,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:13:49,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:13:49,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:13:49,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:13:49,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:13:49,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:13:49,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:13:49,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:13:49,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:13:49,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (1/1) ... [2021-08-27 16:13:49,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:13:49,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:13:49,676 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 16:13:49,683 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 16:13:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:13:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:13:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:13:49,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:13:50,226 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:13:50,226 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-08-27 16:13:50,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:13:50 BoogieIcfgContainer [2021-08-27 16:13:50,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:13:50,228 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:13:50,228 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:13:50,230 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:13:50,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:13:50,231 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:13:49" (1/3) ... [2021-08-27 16:13:50,231 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@491b8a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:13:50, skipping insertion in model container [2021-08-27 16:13:50,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:13:50,232 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:49" (2/3) ... [2021-08-27 16:13:50,232 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@491b8a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:13:50, skipping insertion in model container [2021-08-27 16:13:50,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:13:50,232 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:13:50" (3/3) ... [2021-08-27 16:13:50,233 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2021-08-27 16:13:50,263 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:13:50,264 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:13:50,264 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:13:50,264 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:13:50,264 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:13:50,264 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:13:50,264 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:13:50,264 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:13:50,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 16:13:50,287 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-08-27 16:13:50,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:13:50,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:13:50,292 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:13:50,292 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:50,292 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:13:50,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 16:13:50,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-08-27 16:13:50,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:13:50,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:13:50,296 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:13:50,296 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:50,299 INFO L791 eck$LassoCheckResult]: Stem: 41#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);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(75, #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(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.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(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 36#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 9#L168true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 38#L176true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 47#L132true assume 0 != main_~tmp~0; 18#L105true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 44#L853-1true [2021-08-27 16:13:50,299 INFO L793 eck$LassoCheckResult]: Loop: 44#L853-1true assume !false; 45#L412true assume test_~splverifierCounter~0 < 4; 46#L413true test_~tmp~1 := test_#t~nondet36;havoc test_#t~nondet36; 27#L421true assume !(0 != test_~tmp~1); 23#L421-1true test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 49#L431true assume !(0 != test_~tmp___0~0); 8#L431-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 19#L441true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 26#L449-1true assume !(0 != ~pumpRunning~0); 56#L278true assume !(0 != ~systemActive~0); 40#L285true havoc __utac_acc__Specification4_spec__1_#t~ret75, __utac_acc__Specification4_spec__1_#t~ret76, __utac_acc__Specification4_spec__1_~tmp~5, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~5;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 55#L260true __utac_acc__Specification4_spec__1_#t~ret75 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~5 := __utac_acc__Specification4_spec__1_#t~ret75;havoc __utac_acc__Specification4_spec__1_#t~ret75; 37#L853true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~5); 44#L853-1true [2021-08-27 16:13:50,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:50,303 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 16:13:50,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:50,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466762090] [2021-08-27 16:13:50,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:50,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:50,460 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:50,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:13:50,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:50,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941108, now seen corresponding path program 1 times [2021-08-27 16:13:50,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:50,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178069606] [2021-08-27 16:13:50,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:50,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:13:50,635 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 16:13:50,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:13:50,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178069606] [2021-08-27 16:13:50,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178069606] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:13:50,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:13:50,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:13:50,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920625434] [2021-08-27 16:13:50,645 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:13:50,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:13:50,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:13:50,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:13:50,658 INFO L87 Difference]: Start difference. First operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 16:13:50,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:13:50,712 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2021-08-27 16:13:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:13:50,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 144 transitions. [2021-08-27 16:13:50,725 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 66 [2021-08-27 16:13:50,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 92 states and 129 transitions. [2021-08-27 16:13:50,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-08-27 16:13:50,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-08-27 16:13:50,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2021-08-27 16:13:50,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:13:50,732 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 129 transitions. [2021-08-27 16:13:50,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2021-08-27 16:13:50,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-08-27 16:13:50,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.4) internal successors, (126), 89 states have internal predecessors, (126), 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 16:13:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2021-08-27 16:13:50,757 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-08-27 16:13:50,757 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-08-27 16:13:50,757 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:13:50,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 126 transitions. [2021-08-27 16:13:50,761 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 64 [2021-08-27 16:13:50,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:13:50,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:13:50,762 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:13:50,762 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:50,763 INFO L791 eck$LassoCheckResult]: Stem: 219#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);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(75, #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(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.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(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 214#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 182#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 183#L176 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 216#L132 assume 0 != main_~tmp~0; 198#L105 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 199#L853-1 [2021-08-27 16:13:50,763 INFO L793 eck$LassoCheckResult]: Loop: 199#L853-1 assume !false; 224#L412 assume test_~splverifierCounter~0 < 4; 223#L413 test_~tmp~1 := test_#t~nondet36;havoc test_#t~nondet36; 208#L421 assume !(0 != test_~tmp~1); 205#L421-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 206#L431 assume !(0 != test_~tmp___0~0); 180#L431-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 181#L441 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 173#L449-1 assume !(0 != ~pumpRunning~0); 194#L278 assume 0 != ~systemActive~0; 217#L285 havoc __utac_acc__Specification4_spec__1_#t~ret75, __utac_acc__Specification4_spec__1_#t~ret76, __utac_acc__Specification4_spec__1_~tmp~5, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~5;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 218#L260 __utac_acc__Specification4_spec__1_#t~ret75 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~5 := __utac_acc__Specification4_spec__1_#t~ret75;havoc __utac_acc__Specification4_spec__1_#t~ret75; 215#L853 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~5); 199#L853-1 [2021-08-27 16:13:50,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:50,769 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 16:13:50,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:50,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124259999] [2021-08-27 16:13:50,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:50,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:50,805 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:50,857 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:13:50,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:50,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1673030481, now seen corresponding path program 1 times [2021-08-27 16:13:50,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:50,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514437291] [2021-08-27 16:13:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:50,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:50,861 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:50,870 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:13:50,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:50,873 INFO L82 PathProgramCache]: Analyzing trace with hash 41248457, now seen corresponding path program 1 times [2021-08-27 16:13:50,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:50,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698995188] [2021-08-27 16:13:50,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:50,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:50,897 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:50,925 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:32,269 WARN L207 SmtUtils]: Spent 41.22 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 16:15:14,048 WARN L207 SmtUtils]: Spent 20.80 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 16:15:14,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:15:14 BoogieIcfgContainer [2021-08-27 16:15:14,156 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:15:14,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:15:14,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:15:14,157 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:15:14,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:13:50" (3/4) ... [2021-08-27 16:15:14,159 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:15:14,198 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:15:14,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:15:14,203 INFO L168 Benchmark]: Toolchain (without parser) took 84965.87 ms. Allocated memory was 54.5 MB in the beginning and 98.6 MB in the end (delta: 44.0 MB). Free memory was 31.1 MB in the beginning and 49.1 MB in the end (delta: -18.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:14,203 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.2 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:15:14,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.78 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 43.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:14,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.66 ms. Allocated memory is still 67.1 MB. Free memory was 43.2 MB in the beginning and 40.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:14,206 INFO L168 Benchmark]: Boogie Preprocessor took 19.96 ms. Allocated memory is still 67.1 MB. Free memory was 40.7 MB in the beginning and 38.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:14,206 INFO L168 Benchmark]: RCFGBuilder took 585.00 ms. Allocated memory is still 67.1 MB. Free memory was 38.8 MB in the beginning and 29.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:14,207 INFO L168 Benchmark]: BuchiAutomizer took 83928.65 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 29.2 MB in the beginning and 51.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:14,207 INFO L168 Benchmark]: Witness Printer took 44.84 ms. Allocated memory is still 98.6 MB. Free memory was 51.2 MB in the beginning and 49.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:14,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.2 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.78 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 43.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.66 ms. Allocated memory is still 67.1 MB. Free memory was 43.2 MB in the beginning and 40.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.96 ms. Allocated memory is still 67.1 MB. Free memory was 40.7 MB in the beginning and 38.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 585.00 ms. Allocated memory is still 67.1 MB. Free memory was 38.8 MB in the beginning and 29.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 83928.65 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 29.2 MB in the beginning and 51.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. * Witness Printer took 44.84 ms. Allocated memory is still 98.6 MB. Free memory was 51.2 MB in the beginning and 49.1 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 90 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 83.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 83.7s. 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 16.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 90 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 74 SDtfs, 70 SDslu, 62 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.2ms 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: 411]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18449} State at position 1 is {NULL=0, NULL=0, NULL=18466, NULL=0, retValue_acc=0, NULL=18449, NULL=18474, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e63a19d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68d8ba4a=0, NULL=0, NULL=0, NULL=18472, NULL=18450, methaneLevelCritical=0, NULL=0, NULL=0, NULL=18459, NULL=18473, NULL=0, tmp___1=0, NULL=18455, NULL=18461, NULL=0, NULL=0, tmp___0=0, cleanupTimeShifts=4, tmp=0, NULL=18460, NULL=18463, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c48608f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b06b982=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fb259af=0, NULL=18468, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@331819e6=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=18477, \result=1, NULL=0, NULL=18451, NULL=0, NULL=18464, NULL=0, tmp___0=0, NULL=18470, NULL=0, NULL=18456, \result=1, NULL=18457, head=0, pumpRunning=0, tmp=1, \result=0, NULL=18453, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f11f60f=0, NULL=0, NULL=18454, NULL=18452, NULL=18471, NULL=0, NULL=0, tmp=1, NULL=18469, retValue_acc=1, tmp___2=72, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=18467, NULL=18476, NULL=18458, head=0, NULL=18462, NULL=18465, NULL=0, NULL=18475} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L270] int pumpRunning = 0; [L271] int systemActive = 1; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L402] int splverifierCounter ; [L403] int tmp ; [L404] int tmp___0 ; [L405] int tmp___1 ; [L406] int tmp___2 ; [L409] splverifierCounter = 0 Loop: [L411] COND TRUE 1 [L413] COND TRUE splverifierCounter < 4 [L419] tmp = __VERIFIER_nondet_int() [L421] COND FALSE !(\read(tmp)) [L429] tmp___0 = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp___0)) [L439] tmp___2 = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp___2) [L396] systemActive = 1 [L278] COND FALSE !(\read(pumpRunning)) [L285] COND TRUE \read(systemActive) [L846] int tmp ; [L847] int tmp___0 ; [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); [L851] tmp = getWaterLevel() [L853] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:15:14,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...