./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product17.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 f81a9f08305b957d008555f277c01d95103d8323a1ced34ab05d9bf457dca169 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:11:41,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:11:41,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:11:41,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:11:41,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:11:41,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:11:41,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:11:41,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:11:41,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:11:41,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:11:41,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:11:41,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:11:41,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:11:41,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:11:41,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:11:41,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:11:41,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:11:41,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:11:41,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:11:41,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:11:41,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:11:41,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:11:41,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:11:41,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:11:41,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:11:41,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:11:41,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:11:41,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:11:41,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:11:41,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:11:41,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:11:41,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:11:41,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:11:41,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:11:41,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:11:41,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:11:41,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:11:41,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:11:41,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:11:41,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:11:41,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:11:41,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:11:41,408 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:11:41,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:11:41,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:11:41,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:11:41,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:11:41,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:11:41,411 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:11:41,412 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:11:41,412 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:11:41,412 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:11:41,413 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:11:41,413 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:11:41,413 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:11:41,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:11:41,413 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:11:41,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:11:41,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:11:41,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:11:41,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:11:41,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:11:41,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:11:41,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:11:41,415 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:11:41,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:11:41,416 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:11:41,416 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:11:41,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:11:41,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:11:41,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:11:41,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:11:41,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:11:41,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:11:41,419 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:11:41,419 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81a9f08305b957d008555f277c01d95103d8323a1ced34ab05d9bf457dca169 [2021-12-19 19:11:41,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:11:41,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:11:41,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:11:41,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:11:41,705 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:11:41,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c [2021-12-19 19:11:41,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539236add/60289017d1df49fea7337a91620f8ad6/FLAGc171897d0 [2021-12-19 19:11:42,215 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:11:42,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c [2021-12-19 19:11:42,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539236add/60289017d1df49fea7337a91620f8ad6/FLAGc171897d0 [2021-12-19 19:11:42,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539236add/60289017d1df49fea7337a91620f8ad6 [2021-12-19 19:11:42,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:11:42,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:11:42,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:11:42,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:11:42,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:11:42,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:11:42" (1/1) ... [2021-12-19 19:11:42,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34006227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:42, skipping insertion in model container [2021-12-19 19:11:42,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:11:42" (1/1) ... [2021-12-19 19:11:42,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:11:42,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:11:42,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c[3323,3336] [2021-12-19 19:11:42,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:11:42,957 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:11:42,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c[3323,3336] [2021-12-19 19:11:43,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:11:43,022 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:11:43,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43 WrapperNode [2021-12-19 19:11:43,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:11:43,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:11:43,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:11:43,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:11:43,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,075 INFO L137 Inliner]: procedures = 52, calls = 149, calls flagged for inlining = 46, calls inlined = 47, statements flattened = 377 [2021-12-19 19:11:43,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:11:43,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:11:43,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:11:43,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:11:43,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:11:43,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:11:43,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:11:43,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:11:43,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (1/1) ... [2021-12-19 19:11:43,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:11:43,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:11:43,126 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) [2021-12-19 19:11:43,144 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 [2021-12-19 19:11:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:11:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:11:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:11:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:11:43,222 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:11:43,223 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:11:43,559 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:11:43,564 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:11:43,567 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 19:11:43,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:11:43 BoogieIcfgContainer [2021-12-19 19:11:43,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:11:43,571 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:11:43,573 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:11:43,575 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:11:43,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:11:43,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:11:42" (1/3) ... [2021-12-19 19:11:43,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68a289af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:11:43, skipping insertion in model container [2021-12-19 19:11:43,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:11:43,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:43" (2/3) ... [2021-12-19 19:11:43,578 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68a289af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:11:43, skipping insertion in model container [2021-12-19 19:11:43,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:11:43,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:11:43" (3/3) ... [2021-12-19 19:11:43,579 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product17.cil.c [2021-12-19 19:11:43,621 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:11:43,621 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:11:43,621 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:11:43,621 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:11:43,622 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:11:43,622 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:11:43,622 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:11:43,622 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:11:43,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 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) [2021-12-19 19:11:43,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-12-19 19:11:43,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:11:43,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:11:43,671 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:43,672 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:43,672 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:11:43,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 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) [2021-12-19 19:11:43,689 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-12-19 19:11:43,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:11:43,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:11:43,690 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:43,690 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:43,698 INFO L791 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 24#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 99#L214true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 57#L207true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 63#L222true main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 45#L169true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 77#L142true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 28#L237-2true [2021-12-19 19:11:43,699 INFO L793 eck$LassoCheckResult]: Loop: 28#L237-2true assume !false; 16#L238true assume test_~splverifierCounter~0#1 < 4; 17#L239true test_~tmp~2#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 83#L247true assume !(0 != test_~tmp~2#1); 59#L247-2true test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 98#L257true assume !(0 != test_~tmp___0~1#1); 26#L257-2true test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 14#L267true assume 0 != test_~tmp___2~0#1; 85#L273-2true assume { :begin_inline_timeShift } true; 48#L305true assume !(0 != ~pumpRunning~0); 91#L305-2true assume !(0 != ~systemActive~0); 21#L312-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret4#1, __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 5#L525true __utac_acc__Specification4_spec__1_#t~ret4#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret4#1;havoc __utac_acc__Specification4_spec__1_#t~ret4#1; 55#L61true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 89#L61-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 68#L322true assume { :end_inline_timeShift } true; 28#L237-2true [2021-12-19 19:11:43,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:43,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-19 19:11:43,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:43,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499349188] [2021-12-19 19:11:43,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:43,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:43,845 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:43,905 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:43,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:43,907 INFO L85 PathProgramCache]: Analyzing trace with hash -828886172, now seen corresponding path program 1 times [2021-12-19 19:11:43,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:43,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872075543] [2021-12-19 19:11:43,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:43,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:43,928 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:43,940 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:43,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash 526532904, now seen corresponding path program 1 times [2021-12-19 19:11:43,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:43,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509076976] [2021-12-19 19:11:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:43,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:11:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:11:44,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:11:44,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509076976] [2021-12-19 19:11:44,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509076976] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:11:44,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:11:44,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:11:44,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282542873] [2021-12-19 19:11:44,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:11:44,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:11:44,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 19:11:44,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-19 19:11:44,250 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 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 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-12-19 19:11:44,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:11:44,300 INFO L93 Difference]: Finished difference Result 99 states and 124 transitions. [2021-12-19 19:11:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 19:11:44,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 124 transitions. [2021-12-19 19:11:44,307 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2021-12-19 19:11:44,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 89 states and 114 transitions. [2021-12-19 19:11:44,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2021-12-19 19:11:44,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 89 [2021-12-19 19:11:44,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 114 transitions. [2021-12-19 19:11:44,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:11:44,313 INFO L681 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-12-19 19:11:44,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 114 transitions. [2021-12-19 19:11:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-12-19 19:11:44,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 88 states have internal predecessors, (114), 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) [2021-12-19 19:11:44,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2021-12-19 19:11:44,337 INFO L704 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-12-19 19:11:44,338 INFO L587 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-12-19 19:11:44,338 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:11:44,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 114 transitions. [2021-12-19 19:11:44,339 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2021-12-19 19:11:44,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:11:44,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:11:44,340 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:44,340 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:44,340 INFO L791 eck$LassoCheckResult]: Stem: 302#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 288#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 289#L214 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 232#L207 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 233#L222 main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 242#L169 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 279#L142 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 254#L237-2 [2021-12-19 19:11:44,340 INFO L793 eck$LassoCheckResult]: Loop: 254#L237-2 assume !false; 270#L238 assume test_~splverifierCounter~0#1 < 4; 271#L239 test_~tmp~2#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 273#L247 assume !(0 != test_~tmp~2#1); 234#L247-2 test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 235#L257 assume !(0 != test_~tmp___0~1#1); 292#L257-2 test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 264#L267 assume 0 != test_~tmp___2~0#1; 266#L273-2 assume { :begin_inline_timeShift } true; 291#L305 assume !(0 != ~pumpRunning~0); 301#L305-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 236#L337 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 237#L329-1 assume { :end_inline_processEnvironment__wrappee__base } true; 283#L337-1 assume { :end_inline_processEnvironment } true; 275#L312-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret4#1, __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 223#L525 __utac_acc__Specification4_spec__1_#t~ret4#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret4#1;havoc __utac_acc__Specification4_spec__1_#t~ret4#1; 224#L61 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 226#L61-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 253#L322 assume { :end_inline_timeShift } true; 254#L237-2 [2021-12-19 19:11:44,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:44,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-19 19:11:44,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:44,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318759344] [2021-12-19 19:11:44,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:44,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:44,352 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:44,363 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:44,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:44,363 INFO L85 PathProgramCache]: Analyzing trace with hash -646833821, now seen corresponding path program 1 times [2021-12-19 19:11:44,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:44,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26720070] [2021-12-19 19:11:44,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:44,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:44,368 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:44,372 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:44,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1655309599, now seen corresponding path program 1 times [2021-12-19 19:11:44,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:44,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232996561] [2021-12-19 19:11:44,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:44,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:44,384 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:44,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:46,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:11:46 BoogieIcfgContainer [2021-12-19 19:11:46,933 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:11:46,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:11:46,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:11:46,934 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:11:46,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:11:43" (3/4) ... [2021-12-19 19:11:46,936 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 19:11:47,031 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 19:11:47,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:11:47,032 INFO L158 Benchmark]: Toolchain (without parser) took 4461.06ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 55.2MB in the beginning and 51.9MB in the end (delta: 3.3MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2021-12-19 19:11:47,032 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 44.3MB in the beginning and 44.3MB in the end (delta: 43.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:11:47,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.36ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 75.5MB in the end (delta: -20.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-12-19 19:11:47,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.57ms. Allocated memory is still 107.0MB. Free memory was 75.5MB in the beginning and 72.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:11:47,033 INFO L158 Benchmark]: Boogie Preprocessor took 22.58ms. Allocated memory is still 107.0MB. Free memory was 72.8MB in the beginning and 71.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:11:47,033 INFO L158 Benchmark]: RCFGBuilder took 470.82ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 81.1MB in the end (delta: -10.0MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2021-12-19 19:11:47,034 INFO L158 Benchmark]: BuchiAutomizer took 3361.49ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 81.1MB in the beginning and 55.0MB in the end (delta: 26.0MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. [2021-12-19 19:11:47,034 INFO L158 Benchmark]: Witness Printer took 98.19ms. Allocated memory is still 130.0MB. Free memory was 55.0MB in the beginning and 51.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-19 19:11:47,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 44.3MB in the beginning and 44.3MB in the end (delta: 43.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.36ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 75.5MB in the end (delta: -20.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.57ms. Allocated memory is still 107.0MB. Free memory was 75.5MB in the beginning and 72.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.58ms. Allocated memory is still 107.0MB. Free memory was 72.8MB in the beginning and 71.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.82ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 81.1MB in the end (delta: -10.0MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3361.49ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 81.1MB in the beginning and 55.0MB in the end (delta: 26.0MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. * Witness Printer took 98.19ms. Allocated memory is still 130.0MB. Free memory was 55.0MB in the beginning and 51.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 6 locations. The remainder module has 89 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. 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 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 89 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 471 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 471 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 119 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 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: 237]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f50867d=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12b3ee13=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@aaaf9f5=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fd0b73c=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f153ddb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4760cba4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25cf4d8e=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, \result=1, tmp=1, tmp___2=29, cleanupTimeShifts=4, tmp=0, \result=0, tmp=1, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5652ad5=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 237]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L79] int cleanupTimeShifts = 4; [L298] int pumpRunning = 0; [L299] int systemActive = 1; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L708] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L160] int retValue_acc ; [L161] int tmp ; [L165] FCALL select_helpers() [L166] FCALL select_features() [L167] CALL, EXPR valid_product() [L218] int retValue_acc ; [L221] retValue_acc = 1 [L222] return (retValue_acc); [L167] RET, EXPR valid_product() [L167] tmp = valid_product() [L169] COND TRUE \read(tmp) [L171] FCALL setup() [L172] CALL runTest() [L151] CALL test() [L228] int splverifierCounter ; [L229] int tmp ; [L230] int tmp___0 ; [L231] int tmp___1 ; [L232] int tmp___2 ; [L235] splverifierCounter = 0 Loop: [L237] COND TRUE 1 [L239] COND TRUE splverifierCounter < 4 [L245] tmp = __VERIFIER_nondet_int() [L247] COND FALSE !(\read(tmp)) [L255] tmp___0 = __VERIFIER_nondet_int() [L257] COND FALSE !(\read(tmp___0)) [L265] tmp___2 = __VERIFIER_nondet_int() [L267] COND TRUE \read(tmp___2) [L280] CALL timeShift() [L305] COND FALSE !(\read(pumpRunning)) [L312] COND TRUE \read(systemActive) [L314] CALL processEnvironment() [L334] int tmp ; [L337] COND FALSE !(\read(pumpRunning)) [L352] FCALL processEnvironment__wrappee__base() [L314] RET processEnvironment() [L320] CALL __utac_acc__Specification4_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR getWaterLevel() [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp = getWaterLevel() [L61] COND FALSE !(tmp == 0) [L320] RET __utac_acc__Specification4_spec__1() [L280] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 19:11:47,083 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)