./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product20.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 3df8d35662b819e3a4d212ebbe7a52d191ed1c2f .................................................................................................................................................................................................................................................................................................................................................................................. 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 16:01:52,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:01:52,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:01:52,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:01:52,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:01:52,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:01:52,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:01:52,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:01:52,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:01:52,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:01:52,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:01:52,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:01:52,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:01:52,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:01:52,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:01:52,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:01:52,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:01:52,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:01:52,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:01:52,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:01:52,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:01:52,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:01:52,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:01:52,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:01:52,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:01:52,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:01:52,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:01:52,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:01:52,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:01:52,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:01:52,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:01:52,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:01:52,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:01:52,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:01:52,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:01:52,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:01:52,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:01:52,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:01:52,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:01:52,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:01:52,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:01:52,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:01:52,360 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:01:52,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:01:52,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:01:52,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:01:52,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:01:52,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:01:52,363 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:01:52,363 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:01:52,363 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:01:52,363 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:01:52,364 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:01:52,364 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:01:52,364 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:01:52,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:01:52,365 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:01:52,365 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:01:52,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:01:52,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:01:52,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:01:52,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:01:52,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:01:52,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:01:52,366 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:01:52,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:01:52,366 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:01:52,366 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:01:52,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:01:52,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:01:52,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:01:52,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:01:52,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:01:52,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:01:52,368 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:01:52,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df8d35662b819e3a4d212ebbe7a52d191ed1c2f [2021-08-27 16:01:52,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:01:52,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:01:52,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:01:52,623 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:01:52,623 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:01:52,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2021-08-27 16:01:52,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51918f0b/7e13a0f1661a433c877fad57b259cdc6/FLAG66c83dd8d [2021-08-27 16:01:53,070 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:01:53,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2021-08-27 16:01:53,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51918f0b/7e13a0f1661a433c877fad57b259cdc6/FLAG66c83dd8d [2021-08-27 16:01:53,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51918f0b/7e13a0f1661a433c877fad57b259cdc6 [2021-08-27 16:01:53,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:01:53,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:01:53,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:01:53,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:01:53,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:01:53,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff79724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53, skipping insertion in model container [2021-08-27 16:01:53,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:01:53,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:01:53,756 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c[14789,14802] [2021-08-27 16:01:53,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:01:53,777 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:01:53,837 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c[14789,14802] [2021-08-27 16:01:53,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:01:53,855 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:01:53,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53 WrapperNode [2021-08-27 16:01:53,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:01:53,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:01:53,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:01:53,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:01:53,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:01:53,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:01:53,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:01:53,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:01:53,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:01:53,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:01:53,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:01:53,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:01:53,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (1/1) ... [2021-08-27 16:01:53,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:01:53,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:01:53,994 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 16:01:54,020 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 16:01:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:01:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:01:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:01:54,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:01:54,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:01:54,592 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2021-08-27 16:01:54,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:01:54 BoogieIcfgContainer [2021-08-27 16:01:54,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:01:54,595 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:01:54,595 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:01:54,597 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:01:54,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:01:54,598 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:01:53" (1/3) ... [2021-08-27 16:01:54,598 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d2470c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:01:54, skipping insertion in model container [2021-08-27 16:01:54,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:01:54,599 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:53" (2/3) ... [2021-08-27 16:01:54,599 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d2470c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:01:54, skipping insertion in model container [2021-08-27 16:01:54,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:01:54,599 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:01:54" (3/3) ... [2021-08-27 16:01:54,600 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2021-08-27 16:01:54,633 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:01:54,634 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:01:54,634 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:01:54,634 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:01:54,634 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:01:54,634 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:01:54,634 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:01:54,635 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:01:54,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 77 states have internal predecessors, (118), 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 16:01:54,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-08-27 16:01:54,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:01:54,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:01:54,669 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:54,669 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:54,669 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:01:54,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 77 states have internal predecessors, (118), 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 16:01:54,681 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-08-27 16:01:54,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:01:54,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:01:54,683 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:54,683 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:54,689 INFO L791 eck$LassoCheckResult]: Stem: 62#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 45#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 51#L109true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 8#L117true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 68#L303true assume 0 != main_~tmp~1; 79#L278true ~methAndRunningLastTime~0 := 0; 41#L51true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 58#L62-1true [2021-08-27 16:01:54,689 INFO L793 eck$LassoCheckResult]: Loop: 58#L62-1true assume !false; 44#L705true assume test_~splverifierCounter~0 < 4; 52#L706true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 14#L714true assume !(0 != test_~tmp~5); 26#L714-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 25#L724true assume !(0 != test_~tmp___0~1); 63#L724-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 31#L734true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 48#L742-1true assume !(0 != ~pumpRunning~0); 7#L772true assume !(0 != ~systemActive~0); 13#L779true havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 50#L171true __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 72#L62true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 58#L62-1true [2021-08-27 16:01:54,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:54,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:01:54,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:54,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154946738] [2021-08-27 16:01:54,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:54,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:54,854 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:54,948 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:54,951 INFO L82 PathProgramCache]: Analyzing trace with hash 12142292, now seen corresponding path program 1 times [2021-08-27 16:01:54,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:54,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458917837] [2021-08-27 16:01:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:54,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:01:55,016 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 16:01:55,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:01:55,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458917837] [2021-08-27 16:01:55,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458917837] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:01:55,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:01:55,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:01:55,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538678416] [2021-08-27 16:01:55,023 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:01:55,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:01:55,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:01:55,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:01:55,038 INFO L87 Difference]: Start difference. First operand has 78 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 77 states have internal predecessors, (118), 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 16:01:55,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:01:55,116 INFO L93 Difference]: Finished difference Result 149 states and 211 transitions. [2021-08-27 16:01:55,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:01:55,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 211 transitions. [2021-08-27 16:01:55,120 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-08-27 16:01:55,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 135 states and 196 transitions. [2021-08-27 16:01:55,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2021-08-27 16:01:55,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2021-08-27 16:01:55,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 196 transitions. [2021-08-27 16:01:55,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:01:55,131 INFO L681 BuchiCegarLoop]: Abstraction has 135 states and 196 transitions. [2021-08-27 16:01:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 196 transitions. [2021-08-27 16:01:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2021-08-27 16:01:55,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 133 states have (on average 1.4511278195488722) internal successors, (193), 132 states have internal predecessors, (193), 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 16:01:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 193 transitions. [2021-08-27 16:01:55,167 INFO L704 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2021-08-27 16:01:55,167 INFO L587 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2021-08-27 16:01:55,167 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:01:55,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states and 193 transitions. [2021-08-27 16:01:55,173 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2021-08-27 16:01:55,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:01:55,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:01:55,173 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:55,173 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:55,174 INFO L791 eck$LassoCheckResult]: Stem: 317#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 300#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 301#L109 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 242#L117 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 243#L303 assume 0 != main_~tmp~1; 319#L278 ~methAndRunningLastTime~0 := 0; 292#L51 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 293#L62-1 [2021-08-27 16:01:55,174 INFO L793 eck$LassoCheckResult]: Loop: 293#L62-1 assume !false; 350#L705 assume test_~splverifierCounter~0 < 4; 308#L706 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 254#L714 assume !(0 != test_~tmp~5); 256#L714-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 274#L724 assume !(0 != test_~tmp___0~1); 318#L724-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 278#L734 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 280#L742-1 assume !(0 != ~pumpRunning~0); 240#L772 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 241#L804 assume !(0 != ~pumpRunning~0); 250#L779 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 251#L171 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 307#L62 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 293#L62-1 [2021-08-27 16:01:55,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:55,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:01:55,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:55,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645128472] [2021-08-27 16:01:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:55,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:55,217 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:55,255 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:55,256 INFO L82 PathProgramCache]: Analyzing trace with hash 349417953, now seen corresponding path program 1 times [2021-08-27 16:01:55,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:55,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302772352] [2021-08-27 16:01:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:55,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:55,259 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:55,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:55,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:55,264 INFO L82 PathProgramCache]: Analyzing trace with hash 411805863, now seen corresponding path program 1 times [2021-08-27 16:01:55,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:55,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943329577] [2021-08-27 16:01:55,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:55,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:55,299 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:55,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:35,422 WARN L207 SmtUtils]: Spent 39.94 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:03:14,146 WARN L207 SmtUtils]: Spent 19.63 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:03:14,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:03:14 BoogieIcfgContainer [2021-08-27 16:03:14,260 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:03:14,260 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:03:14,260 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:03:14,261 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:03:14,261 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:01:54" (3/4) ... [2021-08-27 16:03:14,262 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:03:14,291 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:03:14,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:03:14,291 INFO L168 Benchmark]: Toolchain (without parser) took 80818.68 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 42.4 MB in the beginning and 57.5 MB in the end (delta: -15.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:14,292 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 46.1 MB. Free memory is still 28.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:03:14,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.45 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 33.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:14,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.35 ms. Allocated memory is still 58.7 MB. Free memory was 33.9 MB in the beginning and 31.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:14,293 INFO L168 Benchmark]: Boogie Preprocessor took 48.14 ms. Allocated memory is still 58.7 MB. Free memory was 31.1 MB in the beginning and 29.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:14,293 INFO L168 Benchmark]: RCFGBuilder took 629.86 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 28.8 MB in the beginning and 50.4 MB in the end (delta: -21.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:14,293 INFO L168 Benchmark]: BuchiAutomizer took 79665.40 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 50.4 MB in the beginning and 59.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:14,294 INFO L168 Benchmark]: Witness Printer took 30.60 ms. Allocated memory is still 86.0 MB. Free memory was 59.6 MB in the beginning and 57.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:14,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 46.1 MB. Free memory is still 28.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.45 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 33.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.35 ms. Allocated memory is still 58.7 MB. Free memory was 33.9 MB in the beginning and 31.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.14 ms. Allocated memory is still 58.7 MB. Free memory was 31.1 MB in the beginning and 29.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 629.86 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 28.8 MB in the beginning and 50.4 MB in the end (delta: -21.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 79665.40 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 50.4 MB in the beginning and 59.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. * Witness Printer took 30.60 ms. Allocated memory is still 86.0 MB. Free memory was 59.6 MB in the beginning and 57.5 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 133 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 79.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 79.4s. 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 27.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 133 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 108 SDtfs, 104 SDslu, 95 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.8ms 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: 704]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3214} State at position 1 is {NULL=3242, NULL=0, NULL=0, NULL=3214, NULL=0, NULL=3225, NULL=0, NULL=0, retValue_acc=0, NULL=3226, NULL=0, NULL=0, NULL=3241, NULL=3238, methaneLevelCritical=0, NULL=0, NULL=0, tmp=0, NULL=3229, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=3218, cleanupTimeShifts=4, NULL=3235, NULL=3230, NULL=3220, NULL=3234, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a9b2ce1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d9711c2=0, NULL=0, systemActive=1, waterLevel=1, NULL=3223, NULL=0, retValue_acc=0, NULL=3217, NULL=0, NULL=0, NULL=0, NULL=3240, \result=1, head=0, pumpRunning=0, NULL=3232, \result=0, NULL=3216, NULL=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=3215, tmp___0=0, NULL=3236, NULL=0, NULL=0, NULL=3224, NULL=0, NULL=3219, retValue_acc=1, tmp___2=71, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=3222, NULL=3231, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d29673=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@648d6776=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e756f90=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e85487c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b6f1d20=0, head=0, NULL=3239, tmp=0, NULL=0, tmp=0, NULL=3233, NULL=3228, NULL=0, NULL=0, NULL=3237, NULL=0, NULL=3221, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1af1ea59=0, NULL=3227} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L45] int methAndRunningLastTime ; [L128] int waterLevel = 1; [L129] int methaneLevelCritical = 0; [L217] int cleanupTimeShifts = 4; [L486] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int pumpRunning = 0; [L766] int systemActive = 1; [L294] int retValue_acc ; [L295] int tmp ; [L113] int retValue_acc ; [L116] retValue_acc = 1 [L117] return (retValue_acc); [L301] tmp = valid_product() [L303] COND TRUE \read(tmp) [L50] methAndRunningLastTime = 0 [L695] int splverifierCounter ; [L696] int tmp ; [L697] int tmp___0 ; [L698] int tmp___1 ; [L699] int tmp___2 ; [L702] splverifierCounter = 0 Loop: [L704] COND TRUE 1 [L706] COND TRUE splverifierCounter < 4 [L712] tmp = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp)) [L722] tmp___0 = __VERIFIER_nondet_int() [L724] COND FALSE !(\read(tmp___0)) [L732] tmp___2 = __VERIFIER_nondet_int() [L734] COND TRUE \read(tmp___2) [L935] systemActive = 1 [L772] COND FALSE !(\read(pumpRunning)) [L779] COND TRUE \read(systemActive) [L801] int tmp ; [L804] COND FALSE !(\read(pumpRunning)) [L55] int tmp ; [L56] int tmp___0 ; [L167] int retValue_acc ; [L170] retValue_acc = methaneLevelCritical [L171] return (retValue_acc); [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:03:14,335 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...