./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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_product23.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 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:39:10,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:39:10,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:39:10,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:39:10,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:39:10,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:39:10,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:39:10,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:39:10,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:39:10,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:39:10,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:39:10,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:39:10,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:39:10,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:39:10,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:39:10,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:39:10,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:39:10,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:39:10,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:39:10,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:39:10,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:39:10,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:39:10,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:39:10,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:39:10,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:39:10,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:39:10,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:39:10,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:39:10,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:39:10,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:39:10,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:39:10,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:39:10,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:39:10,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:39:10,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:39:10,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:39:10,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:39:10,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:39:10,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:39:10,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:39:10,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:39:10,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:39:10,240 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:39:10,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:39:10,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:39:10,241 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:39:10,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:39:10,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:39:10,243 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:39:10,243 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:39:10,243 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:39:10,243 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:39:10,244 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:39:10,244 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:39:10,244 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:39:10,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:39:10,245 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:39:10,245 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:39:10,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:39:10,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:39:10,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:39:10,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:39:10,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:39:10,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:39:10,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:39:10,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:39:10,247 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:39:10,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:39:10,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:39:10,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:39:10,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:39:10,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:39:10,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:39:10,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:39:10,250 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:39:10,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 [2021-12-14 23:39:10,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:39:10,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:39:10,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:39:10,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:39:10,492 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:39:10,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2021-12-14 23:39:10,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8433a1a/198af489ce92446886af0edcaeee55a5/FLAGa24f3fdd8 [2021-12-14 23:39:10,963 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:39:10,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2021-12-14 23:39:10,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8433a1a/198af489ce92446886af0edcaeee55a5/FLAGa24f3fdd8 [2021-12-14 23:39:10,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8433a1a/198af489ce92446886af0edcaeee55a5 [2021-12-14 23:39:10,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:39:10,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:39:10,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:39:10,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:39:11,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:39:11,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:10" (1/1) ... [2021-12-14 23:39:11,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273515a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11, skipping insertion in model container [2021-12-14 23:39:11,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:10" (1/1) ... [2021-12-14 23:39:11,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:39:11,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:39:11,221 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_product23.cil.c[1605,1618] [2021-12-14 23:39:11,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:39:11,312 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:39:11,322 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_product23.cil.c[1605,1618] [2021-12-14 23:39:11,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:39:11,377 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:39:11,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11 WrapperNode [2021-12-14 23:39:11,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:39:11,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:39:11,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:39:11,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:39:11,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,454 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 52, calls inlined = 79, statements flattened = 564 [2021-12-14 23:39:11,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:39:11,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:39:11,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:39:11,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:39:11,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:39:11,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:39:11,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:39:11,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:39:11,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (1/1) ... [2021-12-14 23:39:11,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:39:11,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:39:11,540 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) [2021-12-14 23:39:11,550 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 [2021-12-14 23:39:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:39:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:39:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:39:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:39:11,644 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:39:11,645 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:39:12,004 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:39:12,011 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:39:12,011 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:39:12,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:12 BoogieIcfgContainer [2021-12-14 23:39:12,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:39:12,015 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:39:12,015 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:39:12,017 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:39:12,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:12,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:39:10" (1/3) ... [2021-12-14 23:39:12,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@598600c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:39:12, skipping insertion in model container [2021-12-14 23:39:12,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:12,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:11" (2/3) ... [2021-12-14 23:39:12,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@598600c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:39:12, skipping insertion in model container [2021-12-14 23:39:12,020 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:12,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:12" (3/3) ... [2021-12-14 23:39:12,021 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2021-12-14 23:39:12,071 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:39:12,071 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:39:12,071 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:39:12,072 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:39:12,072 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:39:12,072 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:39:12,072 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:39:12,072 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:39:12,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 154 states, 153 states have (on average 1.34640522875817) internal successors, (206), 153 states have internal predecessors, (206), 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) [2021-12-14 23:39:12,139 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2021-12-14 23:39:12,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:12,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:12,146 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:12,147 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:12,147 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:39:12,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 154 states, 153 states have (on average 1.34640522875817) internal successors, (206), 153 states have internal predecessors, (206), 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) [2021-12-14 23:39:12,164 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2021-12-14 23:39:12,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:12,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:12,168 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:12,168 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:12,177 INFO L791 eck$LassoCheckResult]: Stem: 140#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 54#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 50#L546true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 66#L539true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 156#L554true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 87#L935true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 137#L912true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L572-2true [2021-12-14 23:39:12,178 INFO L793 eck$LassoCheckResult]: Loop: 27#L572-2true assume !false; 69#L573true assume test_~splverifierCounter~0#1 < 4; 62#L574true test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 150#L582true assume !(0 != test_~tmp~3#1); 40#L582-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 20#L592true assume !(0 != test_~tmp___0~0#1); 4#L592-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 14#L602true assume 0 != test_~tmp___2~0#1; 121#L608-2true assume { :begin_inline_timeShift } true; 56#L641true assume !(0 != ~pumpRunning~0); 130#L641-2true assume !(0 != ~systemActive~0); 111#L648-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 29#L507true __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 144#L835true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 30#L835-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 35#L658true assume { :end_inline_timeShift } true; 27#L572-2true [2021-12-14 23:39:12,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:12,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-14 23:39:12,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:12,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293431044] [2021-12-14 23:39:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:12,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:12,334 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:12,400 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:12,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:12,403 INFO L85 PathProgramCache]: Analyzing trace with hash -126028796, now seen corresponding path program 1 times [2021-12-14 23:39:12,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:12,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595231037] [2021-12-14 23:39:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:12,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:12,415 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:12,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:12,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:12,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1229390280, now seen corresponding path program 1 times [2021-12-14 23:39:12,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:12,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973036583] [2021-12-14 23:39:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:12,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:39:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:39:12,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:39:12,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973036583] [2021-12-14 23:39:12,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973036583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:39:12,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:39:12,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:39:12,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832222593] [2021-12-14 23:39:12,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:39:12,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:39:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 23:39:12,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 23:39:12,746 INFO L87 Difference]: Start difference. First operand has 154 states, 153 states have (on average 1.34640522875817) internal successors, (206), 153 states have internal predecessors, (206), 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) [2021-12-14 23:39:12,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:39:12,867 INFO L93 Difference]: Finished difference Result 359 states and 461 transitions. [2021-12-14 23:39:12,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 23:39:12,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 359 states and 461 transitions. [2021-12-14 23:39:12,881 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 231 [2021-12-14 23:39:12,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 359 states to 329 states and 431 transitions. [2021-12-14 23:39:12,892 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 329 [2021-12-14 23:39:12,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 329 [2021-12-14 23:39:12,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 329 states and 431 transitions. [2021-12-14 23:39:12,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:39:12,901 INFO L681 BuchiCegarLoop]: Abstraction has 329 states and 431 transitions. [2021-12-14 23:39:12,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states and 431 transitions. [2021-12-14 23:39:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 193. [2021-12-14 23:39:12,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 193 states have (on average 1.310880829015544) internal successors, (253), 192 states have internal predecessors, (253), 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) [2021-12-14 23:39:12,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 253 transitions. [2021-12-14 23:39:12,941 INFO L704 BuchiCegarLoop]: Abstraction has 193 states and 253 transitions. [2021-12-14 23:39:12,941 INFO L587 BuchiCegarLoop]: Abstraction has 193 states and 253 transitions. [2021-12-14 23:39:12,941 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:39:12,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 253 transitions. [2021-12-14 23:39:12,944 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 136 [2021-12-14 23:39:12,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:12,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:12,947 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:12,948 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, 1, 1] [2021-12-14 23:39:12,948 INFO L791 eck$LassoCheckResult]: Stem: 671#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 612#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 605#L546 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 606#L539 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 626#L554 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 640#L935 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 641#L912 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 574#L572-2 [2021-12-14 23:39:12,948 INFO L793 eck$LassoCheckResult]: Loop: 574#L572-2 assume !false; 575#L573 assume test_~splverifierCounter~0#1 < 4; 622#L574 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 623#L582 assume !(0 != test_~tmp~3#1); 573#L582-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 563#L592 assume !(0 != test_~tmp___0~0#1); 531#L592-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 532#L602 assume 0 != test_~tmp___2~0#1; 551#L608-2 assume { :begin_inline_timeShift } true; 613#L641 assume !(0 != ~pumpRunning~0); 614#L641-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 618#L699 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret37#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 597#L673-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 565#L665-3 assume { :end_inline_processEnvironment__wrappee__base } true; 566#L673-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 536#L699-1 assume { :end_inline_processEnvironment } true; 661#L648-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 577#L507 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 578#L835 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 579#L835-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 580#L658 assume { :end_inline_timeShift } true; 574#L572-2 [2021-12-14 23:39:12,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:12,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-14 23:39:12,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:12,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849159079] [2021-12-14 23:39:12,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:12,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:12,977 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:13,002 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:13,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash 953586313, now seen corresponding path program 1 times [2021-12-14 23:39:13,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:13,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836075555] [2021-12-14 23:39:13,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:13,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:13,013 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:13,019 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:13,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:13,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1405255493, now seen corresponding path program 1 times [2021-12-14 23:39:13,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:13,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364702433] [2021-12-14 23:39:13,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:13,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:13,032 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:13,047 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:15,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:39:15 BoogieIcfgContainer [2021-12-14 23:39:15,663 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:39:15,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:39:15,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:39:15,664 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:39:15,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:12" (3/4) ... [2021-12-14 23:39:15,667 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:39:15,718 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:39:15,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:39:15,719 INFO L158 Benchmark]: Toolchain (without parser) took 4722.48ms. Allocated memory was 81.8MB in the beginning and 121.6MB in the end (delta: 39.8MB). Free memory was 45.6MB in the beginning and 93.6MB in the end (delta: -48.0MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2021-12-14 23:39:15,720 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:39:15,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.44ms. Allocated memory is still 81.8MB. Free memory was 45.4MB in the beginning and 51.3MB in the end (delta: -5.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 23:39:15,720 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.47ms. Allocated memory is still 81.8MB. Free memory was 51.1MB in the beginning and 48.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:15,721 INFO L158 Benchmark]: Boogie Preprocessor took 49.91ms. Allocated memory is still 81.8MB. Free memory was 48.0MB in the beginning and 45.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 23:39:15,721 INFO L158 Benchmark]: RCFGBuilder took 504.56ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.6MB in the beginning and 69.9MB in the end (delta: -24.3MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2021-12-14 23:39:15,722 INFO L158 Benchmark]: BuchiAutomizer took 3648.79ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 69.5MB in the beginning and 34.9MB in the end (delta: 34.6MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2021-12-14 23:39:15,722 INFO L158 Benchmark]: Witness Printer took 54.93ms. Allocated memory is still 121.6MB. Free memory was 34.9MB in the beginning and 93.6MB in the end (delta: -58.7MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-12-14 23:39:15,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.44ms. Allocated memory is still 81.8MB. Free memory was 45.4MB in the beginning and 51.3MB in the end (delta: -5.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.47ms. Allocated memory is still 81.8MB. Free memory was 51.1MB in the beginning and 48.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.91ms. Allocated memory is still 81.8MB. Free memory was 48.0MB in the beginning and 45.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 504.56ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.6MB in the beginning and 69.9MB in the end (delta: -24.3MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3648.79ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 69.5MB in the beginning and 34.9MB in the end (delta: 34.6MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. * Witness Printer took 54.93ms. Allocated memory is still 121.6MB. Free memory was 34.9MB in the beginning and 93.6MB in the end (delta: -58.7MB). Peak memory consumption was 3.3MB. 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 193 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 136 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 193 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 730 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 730 mSDsluCounter, 1059 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 860 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 199 mSDtfsCounter, 42 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: 572]: 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, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@512fa3e8=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@433fb92c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a0804ed=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@558d589c=0, tmp___0=0, methaneLevelCritical=0, tmp=1, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69b9eadf=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f72fe5=29, tmp=1, tmp___2=29, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21935110=0, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39f39761=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e5057fe=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 572]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L633] int pumpRunning = 0; [L634] int systemActive = 1; [L853] int cleanupTimeShifts = 4; [L926] int retValue_acc ; [L927] int tmp ; [L931] FCALL select_helpers() [L932] FCALL select_features() [L933] CALL, EXPR valid_product() [L550] int retValue_acc ; [L553] retValue_acc = 1 [L554] return (retValue_acc); [L933] RET, EXPR valid_product() [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L937] FCALL setup() [L938] CALL runTest() [L920] CALL test() [L563] int splverifierCounter ; [L564] int tmp ; [L565] int tmp___0 ; [L566] int tmp___1 ; [L567] int tmp___2 ; [L570] splverifierCounter = 0 Loop: [L572] COND TRUE 1 [L574] COND TRUE splverifierCounter < 4 [L580] tmp = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp)) [L590] tmp___0 = __VERIFIER_nondet_int() [L592] COND FALSE !(\read(tmp___0)) [L600] tmp___2 = __VERIFIER_nondet_int() [L602] COND TRUE \read(tmp___2) [L617] CALL timeShift() [L641] COND FALSE !(\read(pumpRunning)) [L648] COND TRUE \read(systemActive) [L650] CALL processEnvironment() [L696] int tmp ; [L699] COND FALSE !(\read(pumpRunning)) [L714] CALL processEnvironment__wrappee__lowWaterSensor() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] FCALL processEnvironment__wrappee__base() [L714] RET processEnvironment__wrappee__lowWaterSensor() [L650] RET processEnvironment() [L656] CALL __utac_acc__Specification4_spec__1() [L828] int tmp ; [L829] int tmp___0 ; [L833] CALL, EXPR getWaterLevel() [L503] int retValue_acc ; [L506] retValue_acc = waterLevel [L507] return (retValue_acc); [L833] RET, EXPR getWaterLevel() [L833] tmp = getWaterLevel() [L835] COND FALSE !(tmp == 0) [L656] RET __utac_acc__Specification4_spec__1() [L617] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:39:15,760 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)