./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product08.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_product08.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 a22bfa4730ddab21776840b89a04f286cc468614 ................................................................................................................................................................................................................................................................................................................................................................................... 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 16:00:39,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:00:39,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:00:39,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:00:39,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:00:39,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:00:39,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:00:39,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:00:39,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:00:39,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:00:39,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:00:39,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:00:39,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:00:39,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:00:39,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:00:39,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:00:39,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:00:39,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:00:39,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:00:39,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:00:39,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:00:39,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:00:39,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:00:39,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:00:39,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:00:39,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:00:39,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:00:39,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:00:39,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:00:39,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:00:39,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:00:39,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:00:39,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:00:39,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:00:39,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:00:39,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:00:39,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:00:39,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:00:39,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:00:39,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:00:39,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:00:39,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:00:39,279 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:00:39,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:00:39,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:00:39,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:00:39,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:00:39,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:00:39,282 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:00:39,282 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:00:39,282 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:00:39,282 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:00:39,283 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:00:39,283 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:00:39,284 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:00:39,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:00:39,284 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:00:39,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:00:39,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:00:39,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:00:39,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:00:39,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:00:39,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:00:39,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:00:39,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:00:39,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:00:39,285 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:00:39,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:00:39,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:00:39,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:00:39,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:00:39,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:00:39,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:00:39,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:00:39,288 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:00:39,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a22bfa4730ddab21776840b89a04f286cc468614 [2021-08-27 16:00:39,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:00:39,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:00:39,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:00:39,641 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:00:39,641 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:00:39,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c [2021-08-27 16:00:39,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98a6aba2/2e16b93a4b314101a0a0fcfcbbedeab5/FLAG5e8c356e1 [2021-08-27 16:00:40,240 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:00:40,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c [2021-08-27 16:00:40,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98a6aba2/2e16b93a4b314101a0a0fcfcbbedeab5/FLAG5e8c356e1 [2021-08-27 16:00:40,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98a6aba2/2e16b93a4b314101a0a0fcfcbbedeab5 [2021-08-27 16:00:40,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:00:40,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:00:40,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:00:40,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:00:40,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:00:40,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:00:40" (1/1) ... [2021-08-27 16:00:40,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28adb1a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:40, skipping insertion in model container [2021-08-27 16:00:40,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:00:40" (1/1) ... [2021-08-27 16:00:40,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:00:40,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:00:40,960 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_product08.cil.c[13495,13508] [2021-08-27 16:00:40,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:00:40,993 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:00:41,068 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_product08.cil.c[13495,13508] [2021-08-27 16:00:41,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:00:41,111 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:00:41,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41 WrapperNode [2021-08-27 16:00:41,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:00:41,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:00:41,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:00:41,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:00:41,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:00:41,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:00:41,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:00:41,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:00:41,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:00:41,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:00:41,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:00:41,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:00:41,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (1/1) ... [2021-08-27 16:00:41,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:00:41,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:00:41,253 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 16:00:41,256 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 16:00:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:00:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:00:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:00:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:00:42,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:00:42,076 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2021-08-27 16:00:42,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:00:42 BoogieIcfgContainer [2021-08-27 16:00:42,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:00:42,081 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:00:42,082 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:00:42,085 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:00:42,086 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:00:42,086 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:00:40" (1/3) ... [2021-08-27 16:00:42,087 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13680f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:00:42, skipping insertion in model container [2021-08-27 16:00:42,087 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:00:42,087 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:00:41" (2/3) ... [2021-08-27 16:00:42,088 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13680f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:00:42, skipping insertion in model container [2021-08-27 16:00:42,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:00:42,088 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:00:42" (3/3) ... [2021-08-27 16:00:42,089 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product08.cil.c [2021-08-27 16:00:42,134 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:00:42,134 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:00:42,135 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:00:42,135 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:00:42,135 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:00:42,135 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:00:42,135 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:00:42,135 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:00:42,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 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 16:00:42,170 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:00:42,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:00:42,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:00:42,177 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:42,177 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:42,178 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:00:42,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 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 16:00:42,183 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:00:42,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:00:42,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:00:42,184 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:42,184 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:42,188 INFO L791 eck$LassoCheckResult]: Stem: 56#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 48#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 51#L629true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 39#L637true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 58#L134true assume 0 != main_~tmp~0; 19#L105true ~methAndRunningLastTime~0 := 0; 64#L649true 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; 62#L660-1true [2021-08-27 16:00:42,189 INFO L793 eck$LassoCheckResult]: Loop: 62#L660-1true assume !false; 66#L695true assume test_~splverifierCounter~0 < 4; 53#L696true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 61#L704true assume !(0 != test_~tmp~5); 73#L704-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 8#L714true assume !(0 != test_~tmp___0~1); 24#L714-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 22#L724true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 65#L732-1true assume !(0 != ~pumpRunning~0); 23#L762true assume !(0 != ~systemActive~0); 52#L769true havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 26#L561-1true __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 27#L660true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 62#L660-1true [2021-08-27 16:00:42,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:42,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:00:42,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:42,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528782252] [2021-08-27 16:00:42,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:42,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:42,448 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:00:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:42,591 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:00:42,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:42,595 INFO L82 PathProgramCache]: Analyzing trace with hash 11926804, now seen corresponding path program 1 times [2021-08-27 16:00:42,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:42,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212182627] [2021-08-27 16:00:42,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:42,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:00:42,676 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 16:00:42,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:00:42,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212182627] [2021-08-27 16:00:42,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212182627] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:00:42,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:00:42,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:00:42,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30839176] [2021-08-27 16:00:42,684 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:00:42,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:00:42,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:00:42,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:00:42,704 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 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 16:00:42,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:00:42,794 INFO L93 Difference]: Finished difference Result 137 states and 193 transitions. [2021-08-27 16:00:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:00:42,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 193 transitions. [2021-08-27 16:00:42,808 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2021-08-27 16:00:42,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 123 states and 178 transitions. [2021-08-27 16:00:42,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2021-08-27 16:00:42,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2021-08-27 16:00:42,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 178 transitions. [2021-08-27 16:00:42,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:00:42,815 INFO L681 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2021-08-27 16:00:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 178 transitions. [2021-08-27 16:00:42,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2021-08-27 16:00:42,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 121 states have (on average 1.4462809917355373) internal successors, (175), 120 states have internal predecessors, (175), 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 16:00:42,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 175 transitions. [2021-08-27 16:00:42,842 INFO L704 BuchiCegarLoop]: Abstraction has 121 states and 175 transitions. [2021-08-27 16:00:42,842 INFO L587 BuchiCegarLoop]: Abstraction has 121 states and 175 transitions. [2021-08-27 16:00:42,842 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:00:42,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 121 states and 175 transitions. [2021-08-27 16:00:42,844 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2021-08-27 16:00:42,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:00:42,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:00:42,845 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:42,845 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:00:42,845 INFO L791 eck$LassoCheckResult]: Stem: 281#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 275#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 276#L629 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 267#L637 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 268#L134 assume 0 != main_~tmp~0; 243#L105 ~methAndRunningLastTime~0 := 0; 244#L649 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; 253#L660-1 [2021-08-27 16:00:42,846 INFO L793 eck$LassoCheckResult]: Loop: 253#L660-1 assume !false; 288#L695 assume test_~splverifierCounter~0 < 4; 278#L696 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 279#L704 assume !(0 != test_~tmp~5); 285#L704-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 228#L714 assume !(0 != test_~tmp___0~1); 230#L714-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 247#L724 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 249#L732-1 assume !(0 != ~pumpRunning~0); 250#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 251#L794 assume !(0 != ~pumpRunning~0); 264#L769 havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 254#L561-1 __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 255#L660 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 253#L660-1 [2021-08-27 16:00:42,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:42,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:00:42,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:42,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492617300] [2021-08-27 16:00:42,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:42,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:42,883 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:00:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:42,928 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:00:42,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:42,929 INFO L82 PathProgramCache]: Analyzing trace with hash 349202465, now seen corresponding path program 1 times [2021-08-27 16:00:42,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:42,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710451801] [2021-08-27 16:00:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:42,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:42,935 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:00:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:42,942 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:00:42,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:00:42,943 INFO L82 PathProgramCache]: Analyzing trace with hash 411590375, now seen corresponding path program 1 times [2021-08-27 16:00:42,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:00:42,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213557643] [2021-08-27 16:00:42,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:00:42,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:00:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:42,983 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:00:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:00:43,024 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:25,608 WARN L207 SmtUtils]: Spent 42.44 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:02:06,401 WARN L207 SmtUtils]: Spent 20.21 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:02:06,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:02:06 BoogieIcfgContainer [2021-08-27 16:02:06,517 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:02:06,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:02:06,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:02:06,518 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:02:06,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:00:42" (3/4) ... [2021-08-27 16:02:06,520 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:02:06,553 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:02:06,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:02:06,557 INFO L168 Benchmark]: Toolchain (without parser) took 85879.96 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 44.8 MB in the beginning and 24.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:06,558 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 65.0 MB. Free memory was 47.2 MB in the beginning and 47.2 MB in the end (delta: 49.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:02:06,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.91 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 41.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:06,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.17 ms. Allocated memory is still 65.0 MB. Free memory was 41.5 MB in the beginning and 38.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:06,559 INFO L168 Benchmark]: Boogie Preprocessor took 32.62 ms. Allocated memory is still 65.0 MB. Free memory was 38.7 MB in the beginning and 36.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:06,559 INFO L168 Benchmark]: RCFGBuilder took 862.65 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 36.6 MB in the beginning and 38.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:06,559 INFO L168 Benchmark]: BuchiAutomizer took 84435.36 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 38.7 MB in the beginning and 26.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:06,560 INFO L168 Benchmark]: Witness Printer took 38.98 ms. Allocated memory is still 96.5 MB. Free memory was 26.4 MB in the beginning and 24.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:06,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 65.0 MB. Free memory was 47.2 MB in the beginning and 47.2 MB in the end (delta: 49.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 434.91 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 41.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.17 ms. Allocated memory is still 65.0 MB. Free memory was 41.5 MB in the beginning and 38.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.62 ms. Allocated memory is still 65.0 MB. Free memory was 38.7 MB in the beginning and 36.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 862.65 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 36.6 MB in the beginning and 38.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 84435.36 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 38.7 MB in the beginning and 26.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. * Witness Printer took 38.98 ms. Allocated memory is still 96.5 MB. Free memory was 26.4 MB in the beginning and 24.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 121 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 84.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 84.1s. 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 15.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 121 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 99 SDtfs, 95 SDslu, 86 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.2ms 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: 694]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1934} State at position 1 is {NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=1934, NULL=1959, NULL=0, NULL=1938, NULL=0, NULL=1953, NULL=1941, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7415c519=0, NULL=1947, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a40de2d=0, methaneLevelCritical=0, NULL=1943, NULL=0, NULL=0, tmp=0, NULL=0, tmp___1=0, NULL=1936, NULL=0, NULL=0, NULL=1948, NULL=1939, NULL=1945, cleanupTimeShifts=4, NULL=1944, NULL=1935, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=1937, NULL=0, NULL=0, retValue_acc=0, NULL=1962, NULL=0, NULL=0, NULL=1956, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=1954, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b07c579=0, NULL=1942, NULL=1958, tmp___0=0, NULL=1960, retValue_acc=1, NULL=0, NULL=0, NULL=1946, NULL=0, NULL=1951, tmp___2=78, NULL=0, NULL=1950, tmp___0=0, NULL=1949, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=1961, NULL=1940, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21c56f8c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42210794=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45116d29=78, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35b29be0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6109a22f=0, head=0, NULL=0, NULL=0, tmp=0, NULL=1957, NULL=0, NULL=0, NULL=0, NULL=1952, tmp=0, NULL=0, NULL=1955} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L317] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L518] int waterLevel = 1; [L519] int methaneLevelCritical = 0; [L643] int methAndRunningLastTime ; [L755] int pumpRunning = 0; [L756] int systemActive = 1; [L125] int retValue_acc ; [L126] int tmp ; [L633] int retValue_acc ; [L636] retValue_acc = 1 [L637] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L648] methAndRunningLastTime = 0 [L685] int splverifierCounter ; [L686] int tmp ; [L687] int tmp___0 ; [L688] int tmp___1 ; [L689] int tmp___2 ; [L692] splverifierCounter = 0 Loop: [L694] COND TRUE 1 [L696] COND TRUE splverifierCounter < 4 [L702] tmp = __VERIFIER_nondet_int() [L704] COND FALSE !(\read(tmp)) [L712] tmp___0 = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp___0)) [L722] tmp___2 = __VERIFIER_nondet_int() [L724] COND TRUE \read(tmp___2) [L906] systemActive = 1 [L762] COND FALSE !(\read(pumpRunning)) [L769] COND TRUE \read(systemActive) [L791] int tmp ; [L794] COND FALSE !(\read(pumpRunning)) [L653] int tmp ; [L654] int tmp___0 ; [L557] int retValue_acc ; [L560] retValue_acc = methaneLevelCritical [L561] return (retValue_acc); [L658] tmp = isMethaneLevelCritical() [L660] COND FALSE !(\read(tmp)) [L676] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:02:06,616 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...