./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product18.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 94764d939360bf9dcef600c899d646b4aba09178 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 16:22:12,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:22:12,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:22:12,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:22:12,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:22:12,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:22:12,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:22:12,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:22:12,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:22:12,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:22:12,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:22:12,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:22:12,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:22:12,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:22:12,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:22:12,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:22:12,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:22:12,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:22:12,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:22:12,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:22:12,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:22:12,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:22:12,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:22:12,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:22:12,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:22:12,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:22:12,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:22:12,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:22:12,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:22:12,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:22:12,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:22:12,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:22:12,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:22:12,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:22:12,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:22:12,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:22:12,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:22:12,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:22:12,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:22:12,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:22:12,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:22:12,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:22:12,358 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:22:12,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:22:12,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:22:12,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:22:12,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:22:12,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:22:12,361 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:22:12,361 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:22:12,361 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:22:12,362 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:22:12,362 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:22:12,362 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:22:12,363 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:22:12,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:22:12,363 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:22:12,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:22:12,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:22:12,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:22:12,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:22:12,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:22:12,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:22:12,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:22:12,364 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:22:12,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:22:12,364 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:22:12,365 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:22:12,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:22:12,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:22:12,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:22:12,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:22:12,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:22:12,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:22:12,367 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:22:12,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94764d939360bf9dcef600c899d646b4aba09178 [2021-08-27 16:22:12,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:22:12,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:22:12,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:22:12,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:22:12,633 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:22:12,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c [2021-08-27 16:22:12,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d480dc6bd/286830e38df54a67a687381d17ffb12e/FLAG3190cf46c [2021-08-27 16:22:13,102 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:22:13,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c [2021-08-27 16:22:13,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d480dc6bd/286830e38df54a67a687381d17ffb12e/FLAG3190cf46c [2021-08-27 16:22:13,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d480dc6bd/286830e38df54a67a687381d17ffb12e [2021-08-27 16:22:13,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:22:13,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:22:13,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:22:13,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:22:13,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:22:13,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4010fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13, skipping insertion in model container [2021-08-27 16:22:13,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:22:13,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:22:13,379 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c[4567,4580] [2021-08-27 16:22:13,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:22:13,457 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:22:13,473 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c[4567,4580] [2021-08-27 16:22:13,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:22:13,506 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:22:13,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13 WrapperNode [2021-08-27 16:22:13,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:22:13,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:22:13,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:22:13,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:22:13,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:22:13,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:22:13,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:22:13,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:22:13,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:22:13,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:22:13,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:22:13,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:22:13,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (1/1) ... [2021-08-27 16:22:13,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:22:13,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:22:13,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 16:22:13,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 16:22:13,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:22:13,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:22:13,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:22:13,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:22:14,237 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:22:14,238 INFO L299 CfgBuilder]: Removed 112 assume(true) statements. [2021-08-27 16:22:14,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:22:14 BoogieIcfgContainer [2021-08-27 16:22:14,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:22:14,240 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:22:14,240 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:22:14,243 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:22:14,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:22:14,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:22:13" (1/3) ... [2021-08-27 16:22:14,244 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f037335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:22:14, skipping insertion in model container [2021-08-27 16:22:14,245 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:22:14,245 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:13" (2/3) ... [2021-08-27 16:22:14,245 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f037335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:22:14, skipping insertion in model container [2021-08-27 16:22:14,245 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:22:14,245 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:22:14" (3/3) ... [2021-08-27 16:22:14,246 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product18.cil.c [2021-08-27 16:22:14,277 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:22:14,278 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:22:14,278 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:22:14,278 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:22:14,278 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:22:14,278 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:22:14,278 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:22:14,278 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:22:14,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:14,300 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-08-27 16:22:14,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:22:14,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:22:14,305 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:14,305 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:14,305 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:22:14,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:14,309 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-08-27 16:22:14,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:22:14,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:22:14,309 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:14,310 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:14,313 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 50#L-1true havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 79#L321true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 45#L329true main_#t~ret31 := valid_product_#res;main_~tmp~3 := main_#t~ret31;havoc main_#t~ret31; 20#L418true assume 0 != main_~tmp~3; 23#L393true ~switchedOnBeforeTS~0 := 0; 69#L439true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L460-1true [2021-08-27 16:22:14,313 INFO L793 eck$LassoCheckResult]: Loop: 6#L460-1true assume !false; 49#L58true assume test_~splverifierCounter~0 < 4; 47#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 62#L67true assume !(0 != test_~tmp~0); 38#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 9#L77true assume !(0 != test_~tmp___0~0); 29#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 67#L87true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 43#L95-2true havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 76#L219true __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 4#L449true assume !(0 != ~pumpRunning~0); 66#L134true assume !(0 != ~systemActive~0); 54#L141true havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 48#L923true __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 70#L460true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 6#L460-1true [2021-08-27 16:22:14,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:14,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:22:14,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:14,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660984844] [2021-08-27 16:22:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:14,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:14,486 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:14,593 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:14,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:14,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1011284045, now seen corresponding path program 1 times [2021-08-27 16:22:14,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:14,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066999327] [2021-08-27 16:22:14,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:14,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:22:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:22:14,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:22:14,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066999327] [2021-08-27 16:22:14,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066999327] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:22:14,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:22:14,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:22:14,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003111955] [2021-08-27 16:22:14,679 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:22:14,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:22:14,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:22:14,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:22:14,697 INFO L87 Difference]: Start difference. First operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:14,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:22:14,737 INFO L93 Difference]: Finished difference Result 81 states and 110 transitions. [2021-08-27 16:22:14,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:22:14,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 110 transitions. [2021-08-27 16:22:14,748 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-08-27 16:22:14,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2021-08-27 16:22:14,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2021-08-27 16:22:14,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2021-08-27 16:22:14,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2021-08-27 16:22:14,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:22:14,754 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-08-27 16:22:14,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2021-08-27 16:22:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-08-27 16:22:14,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 73 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2021-08-27 16:22:14,780 INFO L704 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-08-27 16:22:14,780 INFO L587 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-08-27 16:22:14,780 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:22:14,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2021-08-27 16:22:14,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-08-27 16:22:14,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:22:14,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:22:14,785 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:14,785 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:14,785 INFO L791 eck$LassoCheckResult]: Stem: 244#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 238#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 239#L321 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 231#L329 main_#t~ret31 := valid_product_#res;main_~tmp~3 := main_#t~ret31;havoc main_#t~ret31; 201#L418 assume 0 != main_~tmp~3; 202#L393 ~switchedOnBeforeTS~0 := 0; 205#L439 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 178#L460-1 [2021-08-27 16:22:14,786 INFO L793 eck$LassoCheckResult]: Loop: 178#L460-1 assume !false; 179#L58 assume test_~splverifierCounter~0 < 4; 235#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 236#L67 assume !(0 != test_~tmp~0); 186#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 180#L77 assume !(0 != test_~tmp___0~0); 182#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 218#L87 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 220#L95-2 havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 230#L219 __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 171#L449 assume !(0 != ~pumpRunning~0); 172#L134 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 223#L166 assume !(0 != ~pumpRunning~0); 224#L141 havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 233#L923 __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 234#L460 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 178#L460-1 [2021-08-27 16:22:14,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:14,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:22:14,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:14,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515810940] [2021-08-27 16:22:14,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:14,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:14,822 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:14,867 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:14,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:14,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1258041219, now seen corresponding path program 1 times [2021-08-27 16:22:14,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:14,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865506144] [2021-08-27 16:22:14,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:14,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:14,872 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:14,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:14,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:14,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1083280585, now seen corresponding path program 1 times [2021-08-27 16:22:14,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:14,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733446161] [2021-08-27 16:22:14,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:14,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:22:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:22:14,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:22:14,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733446161] [2021-08-27 16:22:14,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733446161] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:22:14,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:22:14,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:22:14,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168008319] [2021-08-27 16:22:15,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:22:15,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 16:22:15,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 16:22:15,073 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. cyclomatic complexity: 30 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2021-08-27 16:22:15,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:22:15,207 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2021-08-27 16:22:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 16:22:15,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2021-08-27 16:22:15,209 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-08-27 16:22:15,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2021-08-27 16:22:15,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2021-08-27 16:22:15,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2021-08-27 16:22:15,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2021-08-27 16:22:15,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:22:15,212 INFO L681 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2021-08-27 16:22:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2021-08-27 16:22:15,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2021-08-27 16:22:15,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.3475177304964538) internal successors, (190), 140 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:15,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2021-08-27 16:22:15,218 INFO L704 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-08-27 16:22:15,218 INFO L587 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-08-27 16:22:15,218 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 16:22:15,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2021-08-27 16:22:15,219 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-08-27 16:22:15,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:22:15,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:22:15,220 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:15,220 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:15,220 INFO L791 eck$LassoCheckResult]: Stem: 558#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 545#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 546#L321 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 538#L329 main_#t~ret31 := valid_product_#res;main_~tmp~3 := main_#t~ret31;havoc main_#t~ret31; 500#L418 assume 0 != main_~tmp~3; 501#L393 ~switchedOnBeforeTS~0 := 0; 506#L439 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 476#L460-1 [2021-08-27 16:22:15,220 INFO L793 eck$LassoCheckResult]: Loop: 476#L460-1 assume !false; 477#L58 assume test_~splverifierCounter~0 < 4; 541#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 542#L67 assume !(0 != test_~tmp~0); 611#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 610#L77 assume !(0 != test_~tmp___0~0); 608#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 607#L87 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 605#L95-2 havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 604#L219 __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 602#L449 assume !(0 != ~pumpRunning~0); 600#L134 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 596#L166 assume !(0 != ~pumpRunning~0); 595#L141 havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 543#L923 __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 544#L460 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 560#L219-1 __utac_acc__Specification5_spec__3_#t~ret34 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 547#L464 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 476#L460-1 [2021-08-27 16:22:15,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:15,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-08-27 16:22:15,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:15,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606095393] [2021-08-27 16:22:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:15,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:15,241 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:15,271 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:15,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:15,278 INFO L82 PathProgramCache]: Analyzing trace with hash 2091787166, now seen corresponding path program 1 times [2021-08-27 16:22:15,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:15,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675899898] [2021-08-27 16:22:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:15,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:15,282 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:15,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:15,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:15,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1650542436, now seen corresponding path program 1 times [2021-08-27 16:22:15,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:15,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984777485] [2021-08-27 16:22:15,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:15,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:15,323 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:15,362 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:55,139 WARN L207 SmtUtils]: Spent 39.61 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:23:37,049 WARN L207 SmtUtils]: Spent 20.32 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:23:37,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:23:37 BoogieIcfgContainer [2021-08-27 16:23:37,128 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:23:37,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:23:37,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:23:37,129 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:23:37,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:22:14" (3/4) ... [2021-08-27 16:23:37,131 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:23:37,158 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:23:37,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:23:37,159 INFO L168 Benchmark]: Toolchain (without parser) took 84026.80 ms. Allocated memory was 50.3 MB in the beginning and 109.1 MB in the end (delta: 58.7 MB). Free memory was 25.9 MB in the beginning and 59.7 MB in the end (delta: -33.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:37,159 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 31.6 MB in the beginning and 31.5 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:23:37,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.54 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 25.7 MB in the beginning and 39.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:37,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.29 ms. Allocated memory is still 65.0 MB. Free memory was 39.8 MB in the beginning and 36.7 MB in the end (delta: 3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:23:37,160 INFO L168 Benchmark]: Boogie Preprocessor took 37.31 ms. Allocated memory is still 65.0 MB. Free memory was 36.7 MB in the beginning and 34.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:37,160 INFO L168 Benchmark]: RCFGBuilder took 656.51 ms. Allocated memory is still 65.0 MB. Free memory was 34.5 MB in the beginning and 35.0 MB in the end (delta: -502.4 kB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:37,161 INFO L168 Benchmark]: BuchiAutomizer took 82888.41 ms. Allocated memory was 65.0 MB in the beginning and 109.1 MB in the end (delta: 44.0 MB). Free memory was 35.0 MB in the beginning and 62.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 60.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:37,161 INFO L168 Benchmark]: Witness Printer took 29.46 ms. Allocated memory is still 109.1 MB. Free memory was 62.7 MB in the beginning and 59.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:37,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 31.6 MB in the beginning and 31.5 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 372.54 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 25.7 MB in the beginning and 39.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.29 ms. Allocated memory is still 65.0 MB. Free memory was 39.8 MB in the beginning and 36.7 MB in the end (delta: 3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.31 ms. Allocated memory is still 65.0 MB. Free memory was 36.7 MB in the beginning and 34.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 656.51 ms. Allocated memory is still 65.0 MB. Free memory was 34.5 MB in the beginning and 35.0 MB in the end (delta: -502.4 kB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 82888.41 ms. Allocated memory was 65.0 MB in the beginning and 109.1 MB in the end (delta: 44.0 MB). Free memory was 35.0 MB in the beginning and 62.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 60.2 MB. Max. memory is 16.1 GB. * Witness Printer took 29.46 ms. Allocated memory is still 109.1 MB. Free memory was 62.7 MB in the beginning and 59.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 82.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 82.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 22.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 263 SDtfs, 426 SDslu, 298 SDs, 0 SdLazy, 85 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.8ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 57]: 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 {NULL=0, NULL=0, NULL=0, NULL=37042, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@408f0690=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cc23bea=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@420c6a0b=0, NULL=1, NULL=37038, retValue_acc=0, NULL=37051, NULL=37039, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f5436ba=0, NULL=37040, NULL=37047, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@637715e8=0, NULL=0, tmp=1, NULL=0, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@484e6d7d=0, NULL=0, NULL=0, NULL=37030, NULL=37049, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=37046, \result=0, NULL=37050, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=37052, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=37055, \result=1, NULL=37034, head=0, pumpRunning=0, tmp___0=0, NULL=37056, \result=0, tmp=1, NULL=37032, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37e14447=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fa1c660=0, NULL=0, retValue_acc=1, NULL=37036, NULL=0, NULL=37048, NULL=0, NULL=0, NULL=37035, NULL=37033, NULL=0, NULL=37044, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@913b334=0, tmp___2=74, NULL=0, NULL=37045, splverifierCounter=0, NULL=0, NULL=37037, NULL=37054, tmp=0, head=0, retValue_acc=0, NULL=0, NULL=0, NULL=37043, NULL=0, NULL=0, NULL=21162, NULL=0, NULL=37041, NULL=37053, NULL=37031} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L433] int switchedOnBeforeTS ; [L651] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L848] int waterLevel = 1; [L849] int methaneLevelCritical = 0; [L409] int retValue_acc ; [L410] int tmp ; [L325] int retValue_acc ; [L328] retValue_acc = 1 [L329] return (retValue_acc); [L416] tmp = valid_product() [L418] COND TRUE \read(tmp) [L438] switchedOnBeforeTS = 0 [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L282] systemActive = 1 [L215] int retValue_acc ; [L218] retValue_acc = pumpRunning [L219] return (retValue_acc); [L447] switchedOnBeforeTS = isPumpRunning() [L134] COND FALSE !(\read(pumpRunning)) [L141] COND TRUE \read(systemActive) [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L453] int tmp ; [L454] int tmp___0 ; [L919] int retValue_acc ; [L922] retValue_acc = waterLevel [L923] return (retValue_acc); [L458] tmp = getWaterLevel() [L460] COND TRUE tmp != 2 [L215] int retValue_acc ; [L218] retValue_acc = pumpRunning [L219] return (retValue_acc); [L462] tmp___0 = isPumpRunning() [L464] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:23:37,200 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...