./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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_product12.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 15efa77def43d479206e17bb9981463db781c0a6 ......................................................................................................................................................................................................................................................................................................................................................................................... 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-wip.dd.multireach-323-8d31f38 [2021-07-06 20:27:41,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:27:41,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:27:41,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:27:41,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:27:41,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:27:41,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:27:41,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:27:41,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:27:41,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:27:41,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:27:41,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:27:41,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:27:41,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:27:41,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:27:41,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:27:41,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:27:41,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:27:41,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:27:41,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:27:41,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:27:41,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:27:41,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:27:41,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:27:41,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:27:41,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:27:41,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:27:41,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:27:41,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:27:41,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:27:41,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:27:41,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:27:41,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:27:41,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:27:41,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:27:41,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:27:41,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:27:41,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:27:41,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:27:41,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:27:41,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:27:41,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:27:41,620 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:27:41,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:27:41,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:27:41,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:27:41,621 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:27:41,621 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:27:41,621 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:27:41,622 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:27:41,622 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:27:41,622 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:27:41,622 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:27:41,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:27:41,622 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:27:41,622 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:27:41,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:27:41,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:27:41,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:27:41,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:27:41,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:27:41,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:27:41,623 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:27:41,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:27:41,624 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:27:41,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:27:41,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:27:41,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:27:41,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:27:41,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:27:41,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:27:41,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:27:41,625 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:27:41,626 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15efa77def43d479206e17bb9981463db781c0a6 [2021-07-06 20:27:41,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:27:41,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:27:41,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:27:41,877 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:27:41,877 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:27:41,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2021-07-06 20:27:41,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d236c8225/9c0fb0c385b44fcfad61b9da6d226e47/FLAGae8e7dfe3 [2021-07-06 20:27:42,305 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:27:42,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2021-07-06 20:27:42,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d236c8225/9c0fb0c385b44fcfad61b9da6d226e47/FLAGae8e7dfe3 [2021-07-06 20:27:42,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d236c8225/9c0fb0c385b44fcfad61b9da6d226e47 [2021-07-06 20:27:42,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:27:42,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:27:42,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:27:42,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:27:42,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:27:42,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:27:42" (1/1) ... [2021-07-06 20:27:42,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ff30fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:42, skipping insertion in model container [2021-07-06 20:27:42,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:27:42" (1/1) ... [2021-07-06 20:27:42,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:27:42,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:27:42,955 WARN L224 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_product12.cil.c[16910,16923] [2021-07-06 20:27:42,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:27:42,961 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:27:42,996 WARN L224 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_product12.cil.c[16910,16923] [2021-07-06 20:27:42,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:27:43,012 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:27:43,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43 WrapperNode [2021-07-06 20:27:43,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:27:43,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:27:43,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:27:43,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:27:43,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:27:43,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:27:43,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:27:43,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:27:43,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:27:43,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:27:43,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:27:43,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:27:43,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (1/1) ... [2021-07-06 20:27:43,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:27:43,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:27:43,132 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) [2021-07-06 20:27:43,133 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 [2021-07-06 20:27:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:27:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:27:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:27:43,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:27:43,724 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:27:43,724 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-07-06 20:27:43,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:27:43 BoogieIcfgContainer [2021-07-06 20:27:43,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:27:43,727 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:27:43,727 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:27:43,729 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:27:43,729 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:27:43,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:27:42" (1/3) ... [2021-07-06 20:27:43,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e53a64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:27:43, skipping insertion in model container [2021-07-06 20:27:43,730 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:27:43,730 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:27:43" (2/3) ... [2021-07-06 20:27:43,731 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e53a64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:27:43, skipping insertion in model container [2021-07-06 20:27:43,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:27:43,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:27:43" (3/3) ... [2021-07-06 20:27:43,732 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product12.cil.c [2021-07-06 20:27:43,768 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:27:43,768 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:27:43,768 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:27:43,768 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:27:43,768 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:27:43,768 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:27:43,769 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:27:43,769 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:27:43,779 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) [2021-07-06 20:27:43,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-07-06 20:27:43,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:27:43,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:27:43,802 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:27:43,802 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:27:43,802 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:27:43,802 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) [2021-07-06 20:27:43,810 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-07-06 20:27:43,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:27:43,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:27:43,811 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:27:43,811 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:27:43,819 INFO L791 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 6#L405true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 12#L413true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 53#L500true assume 0 != main_~tmp~3; 30#L477true havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 52#L138-1true [2021-07-06 20:27:43,820 INFO L793 eck$LassoCheckResult]: Loop: 52#L138-1true assume !false; 11#L171true assume test_~splverifierCounter~0 < 4; 24#L172true test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 20#L180true assume !(0 != test_~tmp~1); 19#L180-1true test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 7#L190true assume !(0 != test_~tmp___0~1); 5#L190-1true test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 50#L200true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3#L208-1true assume !(0 != ~pumpRunning~0); 26#L239true assume !(0 != ~systemActive~0); 31#L246true havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 46#L123true __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 9#L138true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 52#L138-1true [2021-07-06 20:27:43,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:27:43,824 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:27:43,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:27:43,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856473419] [2021-07-06 20:27:43,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:27:43,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:27:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:27:44,000 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:27:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:27:44,075 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:27:44,106 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:27:44,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:27:44,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941108, now seen corresponding path program 1 times [2021-07-06 20:27:44,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:27:44,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316438148] [2021-07-06 20:27:44,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:27:44,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:27:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:27:44,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:27:44,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:27:44,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:27:44,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:27:44,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:27:44,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:27:44,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:27:44,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:27:44,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316438148] [2021-07-06 20:27:44,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316438148] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:27:44,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:27:44,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:27:44,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21386054] [2021-07-06 20:27:44,162 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:27:44,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:27:44,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:27:44,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:27:44,186 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) [2021-07-06 20:27:44,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:27:44,253 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2021-07-06 20:27:44,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:27:44,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 144 transitions. [2021-07-06 20:27:44,257 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 66 [2021-07-06 20:27:44,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 92 states and 129 transitions. [2021-07-06 20:27:44,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-07-06 20:27:44,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-07-06 20:27:44,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2021-07-06 20:27:44,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:27:44,264 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 129 transitions. [2021-07-06 20:27:44,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2021-07-06 20:27:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-07-06 20:27:44,288 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) [2021-07-06 20:27:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2021-07-06 20:27:44,289 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-07-06 20:27:44,289 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-07-06 20:27:44,289 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:27:44,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 126 transitions. [2021-07-06 20:27:44,290 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 64 [2021-07-06 20:27:44,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:27:44,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:27:44,290 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:27:44,291 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:27:44,291 INFO L791 eck$LassoCheckResult]: Stem: 202#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 182#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 180#L405 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 181#L413 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 191#L500 assume 0 != main_~tmp~3; 209#L477 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 210#L138-1 [2021-07-06 20:27:44,292 INFO L793 eck$LassoCheckResult]: Loop: 210#L138-1 assume !false; 235#L171 assume test_~splverifierCounter~0 < 4; 234#L172 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 233#L180 assume !(0 != test_~tmp~1); 231#L180-1 test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 230#L190 assume !(0 != test_~tmp___0~1); 228#L190-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 224#L200 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 171#L208-1 assume !(0 != ~pumpRunning~0); 173#L239 assume 0 != ~systemActive~0; 203#L246 havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 239#L123 __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 237#L138 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 210#L138-1 [2021-07-06 20:27:44,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:27:44,293 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:27:44,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:27:44,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861620349] [2021-07-06 20:27:44,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:27:44,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:27:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:27:44,332 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:27:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:27:44,353 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:27:44,361 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:27:44,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:27:44,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1673030481, now seen corresponding path program 1 times [2021-07-06 20:27:44,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:27:44,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828572083] [2021-07-06 20:27:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:27:44,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:27:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:27:44,371 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:27:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:27:44,373 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:27:44,375 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:27:44,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:27:44,378 INFO L82 PathProgramCache]: Analyzing trace with hash 41248457, now seen corresponding path program 1 times [2021-07-06 20:27:44,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:27:44,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948831817] [2021-07-06 20:27:44,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:27:44,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:27:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:27:44,423 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:27:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:27:44,445 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:27:44,453 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:27:44,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:27:44,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:28:25,994 WARN L205 SmtUtils]: Spent 41.41 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:28:26,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:28:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:28:46,296 WARN L205 SmtUtils]: Spent 20.25 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:28:46,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:28:46 BoogieIcfgContainer [2021-07-06 20:28:46,408 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:28:46,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:28:46,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:28:46,409 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:28:46,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:27:43" (3/4) ... [2021-07-06 20:28:46,411 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:28:46,437 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:28:46,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:28:46,443 INFO L168 Benchmark]: Toolchain (without parser) took 63759.40 ms. Allocated memory was 56.6 MB in the beginning and 88.1 MB in the end (delta: 31.5 MB). Free memory was 34.4 MB in the beginning and 45.9 MB in the end (delta: -11.5 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2021-07-06 20:28:46,443 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 56.6 MB. Free memory is still 37.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:28:46,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.95 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.2 MB in the beginning and 47.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:28:46,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 73.4 MB. Free memory was 47.3 MB in the beginning and 44.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:28:46,444 INFO L168 Benchmark]: Boogie Preprocessor took 42.70 ms. Allocated memory is still 73.4 MB. Free memory was 44.6 MB in the beginning and 42.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:28:46,444 INFO L168 Benchmark]: RCFGBuilder took 615.86 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 35.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:28:46,445 INFO L168 Benchmark]: BuchiAutomizer took 62681.72 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 35.5 MB in the beginning and 48.0 MB in the end (delta: -12.6 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:28:46,447 INFO L168 Benchmark]: Witness Printer took 33.57 ms. Allocated memory is still 88.1 MB. Free memory was 48.0 MB in the beginning and 45.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:28:46,449 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 56.6 MB. Free memory is still 37.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.95 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.2 MB in the beginning and 47.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 73.4 MB. Free memory was 47.3 MB in the beginning and 44.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.70 ms. Allocated memory is still 73.4 MB. Free memory was 44.6 MB in the beginning and 42.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 615.86 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 35.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 62681.72 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 35.5 MB in the beginning and 48.0 MB in the end (delta: -12.6 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. * Witness Printer took 33.57 ms. Allocated memory is still 88.1 MB. Free memory was 48.0 MB in the beginning and 45.9 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 62.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 62.4s. 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 17.0ms 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, 37.2ms 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: 170]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=16368} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=16379, NULL=0, NULL=16368, NULL=0, NULL=16389, retValue_acc=0, NULL=0, NULL=16369, NULL=16393, NULL=16392, NULL=16396, methaneLevelCritical=0, NULL=16378, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=16388, NULL=16380, cleanupTimeShifts=4, NULL=16382, tmp=0, NULL=16385, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38751342=0, NULL=16374, NULL=0, NULL=16384, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, tmp=1, NULL=16370, NULL=0, NULL=16395, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64f29c00=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24e820d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28a95778=0, NULL=16381, tmp=1, NULL=0, NULL=0, NULL=16387, NULL=0, NULL=0, NULL=16376, tmp___2=72, NULL=0, NULL=16386, tmp___0=0, NULL=16373, splverifierCounter=0, NULL=0, NULL=16391, NULL=16375, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a3eff75=0, NULL=16377, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3284c75c=72, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2606380a=0, NULL=0, NULL=0, NULL=16394, NULL=16372, NULL=16390, NULL=16383, NULL=16371} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L232] int pumpRunning = 0; [L233] int systemActive = 1; [L418] int cleanupTimeShifts = 4; [L683] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int retValue_acc ; [L492] int tmp ; [L409] int retValue_acc ; [L412] retValue_acc = 1 [L413] return (retValue_acc); [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L161] int splverifierCounter ; [L162] int tmp ; [L163] int tmp___0 ; [L164] int tmp___1 ; [L165] int tmp___2 ; [L168] splverifierCounter = 0 Loop: [L170] COND TRUE 1 [L172] COND TRUE splverifierCounter < 4 [L178] tmp = __VERIFIER_nondet_int() [L180] COND FALSE !(\read(tmp)) [L188] tmp___0 = __VERIFIER_nondet_int() [L190] COND FALSE !(\read(tmp___0)) [L198] tmp___2 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___2) [L375] systemActive = 1 [L239] COND FALSE !(\read(pumpRunning)) [L246] COND TRUE \read(systemActive) [L131] int tmp ; [L132] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L136] tmp = getWaterLevel() [L138] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:28:46,493 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...