./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G --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 577813f622c64f907053c4832aa01617433208d6dc94051427e21d3f2bb7bdeb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:16:30,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:16:30,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:16:30,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:16:30,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:16:30,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:16:30,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:16:30,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:16:30,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:16:30,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:16:30,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:16:30,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:16:30,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:16:30,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:16:30,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:16:30,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:16:30,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:16:30,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:16:30,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:16:30,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:16:30,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:16:30,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:16:30,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:16:30,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:16:30,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:16:30,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:16:30,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:16:30,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:16:30,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:16:30,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:16:30,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:16:30,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:16:30,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:16:30,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:16:30,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:16:30,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:16:30,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:16:30,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:16:30,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:16:30,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:16:30,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:16:30,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-23 14:16:30,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:16:30,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:16:30,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:16:30,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:16:30,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:16:30,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:16:30,488 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:16:30,488 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 14:16:30,489 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 14:16:30,489 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 14:16:30,490 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 14:16:30,490 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 14:16:30,490 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 14:16:30,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:16:30,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:16:30,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 14:16:30,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:16:30,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:16:30,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:16:30,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 14:16:30,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 14:16:30,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 14:16:30,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:16:30,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:16:30,493 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 14:16:30,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:16:30,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 14:16:30,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:16:30,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:16:30,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:16:30,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:16:30,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:16:30,496 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 14:16:30,497 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577813f622c64f907053c4832aa01617433208d6dc94051427e21d3f2bb7bdeb [2021-11-23 14:16:30,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:16:30,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:16:30,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:16:30,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:16:30,778 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:16:30,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2021-11-23 14:16:30,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/data/707925e4c/65dcff7ecd2a43fa9b49b5fa4df9a508/FLAGf406c380f [2021-11-23 14:16:31,386 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:16:31,387 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2021-11-23 14:16:31,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/data/707925e4c/65dcff7ecd2a43fa9b49b5fa4df9a508/FLAGf406c380f [2021-11-23 14:16:31,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/data/707925e4c/65dcff7ecd2a43fa9b49b5fa4df9a508 [2021-11-23 14:16:31,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:16:31,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:16:31,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:16:31,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:16:31,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:16:31,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:31" (1/1) ... [2021-11-23 14:16:31,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64eb6489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:31, skipping insertion in model container [2021-11-23 14:16:31,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:31" (1/1) ... [2021-11-23 14:16:31,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:16:31,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:16:32,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c[13023,13036] [2021-11-23 14:16:32,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:16:32,059 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:16:32,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c[13023,13036] [2021-11-23 14:16:32,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:16:32,164 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:16:32,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32 WrapperNode [2021-11-23 14:16:32,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:16:32,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:16:32,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:16:32,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:16:32,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,265 INFO L137 Inliner]: procedures = 53, calls = 153, calls flagged for inlining = 50, calls inlined = 77, statements flattened = 581 [2021-11-23 14:16:32,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:16:32,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:16:32,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:16:32,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:16:32,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:16:32,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:16:32,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:16:32,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:16:32,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (1/1) ... [2021-11-23 14:16:32,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:16:32,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:16:32,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:16:32,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 14:16:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:16:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:16:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:16:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:16:32,506 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:16:32,507 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:16:32,941 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:16:32,950 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:16:32,951 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 14:16:32,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:32 BoogieIcfgContainer [2021-11-23 14:16:32,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:16:32,954 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 14:16:32,955 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 14:16:32,958 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 14:16:32,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:16:32,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:16:31" (1/3) ... [2021-11-23 14:16:32,960 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67164355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:16:32, skipping insertion in model container [2021-11-23 14:16:32,960 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:16:32,961 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:32" (2/3) ... [2021-11-23 14:16:32,961 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67164355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:16:32, skipping insertion in model container [2021-11-23 14:16:32,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:16:32,961 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:32" (3/3) ... [2021-11-23 14:16:32,962 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2021-11-23 14:16:33,018 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 14:16:33,019 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 14:16:33,019 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 14:16:33,019 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 14:16:33,019 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 14:16:33,019 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 14:16:33,019 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 14:16:33,019 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 14:16:33,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 156 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 155 states have internal predecessors, (213), 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) [2021-11-23 14:16:33,070 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2021-11-23 14:16:33,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:16:33,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:16:33,077 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:33,077 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:33,077 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 14:16:33,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 156 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 155 states have internal predecessors, (213), 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) [2021-11-23 14:16:33,089 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2021-11-23 14:16:33,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:16:33,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:16:33,090 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:33,090 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:33,095 INFO L791 eck$LassoCheckResult]: Stem: 143#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 36#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 3#L580true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 55#L573true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 110#L588true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 137#L506true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 72#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 43#L786-2true [2021-11-23 14:16:33,096 INFO L793 eck$LassoCheckResult]: Loop: 43#L786-2true assume !false; 144#L787true assume test_~splverifierCounter~0#1 < 4; 156#L788true test_~tmp~8#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 104#L796true assume !(0 != test_~tmp~8#1); 59#L796-2true test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 77#L806true assume !(0 != test_~tmp___0~2#1); 116#L806-2true test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 78#L816true assume 0 != test_~tmp___2~0#1; 60#L822-2true assume { :begin_inline_timeShift } true; 63#L605true assume !(0 != ~pumpRunning~0); 89#L605-2true assume !(0 != ~systemActive~0); 133#L612-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 152#L885-1true __utac_acc__Specification1_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret28#1;havoc __utac_acc__Specification1_spec__1_#t~ret28#1; 38#L531true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 13#L531-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 118#L622true assume { :end_inline_timeShift } true; 43#L786-2true [2021-11-23 14:16:33,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:33,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-23 14:16:33,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:33,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494653137] [2021-11-23 14:16:33,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:33,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:33,227 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:16:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:33,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:16:33,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash 975704644, now seen corresponding path program 1 times [2021-11-23 14:16:33,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:33,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409381769] [2021-11-23 14:16:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:33,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:33,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:16:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:33,313 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:16:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:33,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1963843576, now seen corresponding path program 1 times [2021-11-23 14:16:33,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:33,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366445807] [2021-11-23 14:16:33,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:33,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:16:33,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:16:33,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:16:33,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366445807] [2021-11-23 14:16:33,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366445807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:16:33,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:16:33,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:16:33,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734775323] [2021-11-23 14:16:33,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:16:33,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:16:33,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:16:33,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:16:33,706 INFO L87 Difference]: Start difference. First operand has 156 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 155 states have internal predecessors, (213), 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) [2021-11-23 14:16:33,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:16:33,778 INFO L93 Difference]: Finished difference Result 153 states and 199 transitions. [2021-11-23 14:16:33,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:16:33,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 199 transitions. [2021-11-23 14:16:33,790 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 96 [2021-11-23 14:16:33,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 143 states and 189 transitions. [2021-11-23 14:16:33,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2021-11-23 14:16:33,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 143 [2021-11-23 14:16:33,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 143 states and 189 transitions. [2021-11-23 14:16:33,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:16:33,801 INFO L681 BuchiCegarLoop]: Abstraction has 143 states and 189 transitions. [2021-11-23 14:16:33,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states and 189 transitions. [2021-11-23 14:16:33,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-11-23 14:16:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 143 states have (on average 1.3216783216783217) internal successors, (189), 142 states have internal predecessors, (189), 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) [2021-11-23 14:16:33,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 189 transitions. [2021-11-23 14:16:33,839 INFO L704 BuchiCegarLoop]: Abstraction has 143 states and 189 transitions. [2021-11-23 14:16:33,839 INFO L587 BuchiCegarLoop]: Abstraction has 143 states and 189 transitions. [2021-11-23 14:16:33,839 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 14:16:33,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 189 transitions. [2021-11-23 14:16:33,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 96 [2021-11-23 14:16:33,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:16:33,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:16:33,844 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:33,844 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] [2021-11-23 14:16:33,845 INFO L791 eck$LassoCheckResult]: Stem: 468#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 386#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 329#L580 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 330#L573 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 408#L588 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 452#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 431#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 392#L786-2 [2021-11-23 14:16:33,845 INFO L793 eck$LassoCheckResult]: Loop: 392#L786-2 assume !false; 393#L787 assume test_~splverifierCounter~0#1 < 4; 469#L788 test_~tmp~8#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 450#L796 assume !(0 != test_~tmp~8#1); 414#L796-2 test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 415#L806 assume !(0 != test_~tmp___0~2#1); 433#L806-2 test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 434#L816 assume 0 != test_~tmp___2~0#1; 418#L822-2 assume { :begin_inline_timeShift } true; 419#L605 assume !(0 != ~pumpRunning~0); 404#L605-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 351#L663 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 353#L637-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 366#L629-3 assume { :end_inline_processEnvironment__wrappee__base } true; 363#L637-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 377#L663-1 assume { :end_inline_processEnvironment } true; 394#L612-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 464#L885-1 __utac_acc__Specification1_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret28#1;havoc __utac_acc__Specification1_spec__1_#t~ret28#1; 384#L531 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 344#L531-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 345#L622 assume { :end_inline_timeShift } true; 392#L786-2 [2021-11-23 14:16:33,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:33,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-23 14:16:33,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:33,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919530919] [2021-11-23 14:16:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:33,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:33,863 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:16:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:33,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:16:33,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:33,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1379375971, now seen corresponding path program 1 times [2021-11-23 14:16:33,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:33,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297681255] [2021-11-23 14:16:33,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:33,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:16:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:16:33,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:16:33,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297681255] [2021-11-23 14:16:33,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297681255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:16:33,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:16:33,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:16:33,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948444538] [2021-11-23 14:16:33,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:16:33,905 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 14:16:33,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:16:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:16:33,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:16:33,907 INFO L87 Difference]: Start difference. First operand 143 states and 189 transitions. cyclomatic complexity: 48 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-23 14:16:33,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:16:33,972 INFO L93 Difference]: Finished difference Result 198 states and 251 transitions. [2021-11-23 14:16:33,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:16:33,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 251 transitions. [2021-11-23 14:16:33,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2021-11-23 14:16:33,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 198 states and 251 transitions. [2021-11-23 14:16:33,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 198 [2021-11-23 14:16:33,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 198 [2021-11-23 14:16:33,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 198 states and 251 transitions. [2021-11-23 14:16:33,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:16:33,982 INFO L681 BuchiCegarLoop]: Abstraction has 198 states and 251 transitions. [2021-11-23 14:16:33,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states and 251 transitions. [2021-11-23 14:16:33,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-11-23 14:16:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 198 states have (on average 1.2676767676767677) internal successors, (251), 197 states have internal predecessors, (251), 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) [2021-11-23 14:16:33,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 251 transitions. [2021-11-23 14:16:33,994 INFO L704 BuchiCegarLoop]: Abstraction has 198 states and 251 transitions. [2021-11-23 14:16:33,995 INFO L587 BuchiCegarLoop]: Abstraction has 198 states and 251 transitions. [2021-11-23 14:16:33,995 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 14:16:33,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 251 transitions. [2021-11-23 14:16:33,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2021-11-23 14:16:33,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:16:33,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:16:33,998 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:33,998 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, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:33,998 INFO L791 eck$LassoCheckResult]: Stem: 825#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 731#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 678#L580 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 679#L573 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 755#L588 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 805#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 780#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 740#L786-2 [2021-11-23 14:16:33,999 INFO L793 eck$LassoCheckResult]: Loop: 740#L786-2 assume !false; 741#L787 assume test_~splverifierCounter~0#1 < 4; 824#L788 test_~tmp~8#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 801#L796 assume !(0 != test_~tmp~8#1); 762#L796-2 test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 763#L806 assume !(0 != test_~tmp___0~2#1); 782#L806-2 test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 783#L816 assume 0 != test_~tmp___2~0#1; 764#L822-2 assume { :begin_inline_timeShift } true; 765#L605 assume !(0 != ~pumpRunning~0); 768#L605-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 698#L663 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 699#L637-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 696#L925-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 697#L930-1 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 754#L765-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 713#L765-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 714#L771-1 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 760#L641-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 709#L629-2 assume { :end_inline_processEnvironment__wrappee__base } true; 710#L637-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 722#L663-1 assume { :end_inline_processEnvironment } true; 739#L612-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 820#L885-1 __utac_acc__Specification1_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret28#1;havoc __utac_acc__Specification1_spec__1_#t~ret28#1; 729#L531 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 691#L531-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 692#L622 assume { :end_inline_timeShift } true; 740#L786-2 [2021-11-23 14:16:33,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:34,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-11-23 14:16:34,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:34,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244452747] [2021-11-23 14:16:34,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:34,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:34,014 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:16:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:34,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:16:34,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:34,034 INFO L85 PathProgramCache]: Analyzing trace with hash -875871941, now seen corresponding path program 1 times [2021-11-23 14:16:34,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:34,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373749528] [2021-11-23 14:16:34,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:34,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:34,042 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:16:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:34,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:16:34,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:34,054 INFO L85 PathProgramCache]: Analyzing trace with hash -500584201, now seen corresponding path program 1 times [2021-11-23 14:16:34,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:34,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068789241] [2021-11-23 14:16:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:34,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:34,071 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:16:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:16:34,116 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:16:37,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:16:37 BoogieIcfgContainer [2021-11-23 14:16:37,640 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 14:16:37,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 14:16:37,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 14:16:37,641 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 14:16:37,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:32" (3/4) ... [2021-11-23 14:16:37,645 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-23 14:16:37,748 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 14:16:37,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 14:16:37,750 INFO L158 Benchmark]: Toolchain (without parser) took 6049.21ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 60.3MB in the beginning and 107.4MB in the end (delta: -47.1MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2021-11-23 14:16:37,751 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 38.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:16:37,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.90ms. Allocated memory is still 86.0MB. Free memory was 60.1MB in the beginning and 52.4MB in the end (delta: 7.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 14:16:37,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.11ms. Allocated memory is still 86.0MB. Free memory was 52.4MB in the beginning and 49.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 14:16:37,753 INFO L158 Benchmark]: Boogie Preprocessor took 73.49ms. Allocated memory is still 86.0MB. Free memory was 49.1MB in the beginning and 46.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:16:37,754 INFO L158 Benchmark]: RCFGBuilder took 606.32ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.8MB in the beginning and 67.9MB in the end (delta: -21.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-11-23 14:16:37,755 INFO L158 Benchmark]: BuchiAutomizer took 4685.59ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 67.9MB in the beginning and 109.5MB in the end (delta: -41.7MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2021-11-23 14:16:37,756 INFO L158 Benchmark]: Witness Printer took 108.26ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 107.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:16:37,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 38.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.90ms. Allocated memory is still 86.0MB. Free memory was 60.1MB in the beginning and 52.4MB in the end (delta: 7.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.11ms. Allocated memory is still 86.0MB. Free memory was 52.4MB in the beginning and 49.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.49ms. Allocated memory is still 86.0MB. Free memory was 49.1MB in the beginning and 46.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.32ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.8MB in the beginning and 67.9MB in the end (delta: -21.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 4685.59ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 67.9MB in the beginning and 109.5MB in the end (delta: -41.7MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. * Witness Printer took 108.26ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 107.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 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 6 locations. The remainder module has 198 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 198 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 901 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 901 mSDsluCounter, 483 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 393 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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: 786]: 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, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b098f25=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34ee5bbe=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, \result=0, retValue_acc=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@330ccae7=0, \result=1, tmp=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2127b069=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d1078b6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c8f4f57=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48a21235=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e66c776=0, cleanupTimeShifts=4, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35e4c93a=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61d32797=0, tmp=0, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 786]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L842] int waterLevel = 1; [L843] int methaneLevelCritical = 0; [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L777] int splverifierCounter ; [L778] int tmp ; [L779] int tmp___0 ; [L780] int tmp___1 ; [L781] int tmp___2 ; [L784] splverifierCounter = 0 Loop: [L786] COND TRUE 1 [L788] COND TRUE splverifierCounter < 4 [L794] tmp = __VERIFIER_nondet_int() [L796] COND FALSE !(\read(tmp)) [L804] tmp___0 = __VERIFIER_nondet_int() [L806] COND FALSE !(\read(tmp___0)) [L814] tmp___2 = __VERIFIER_nondet_int() [L816] COND TRUE \read(tmp___2) [L829] CALL timeShift() [L605] COND FALSE !(\read(pumpRunning)) [L612] COND TRUE \read(systemActive) [L614] CALL processEnvironment() [L660] int tmp ; [L663] COND FALSE !(\read(pumpRunning)) [L678] CALL processEnvironment__wrappee__highWaterSensor() [L634] int tmp ; [L637] COND TRUE ! pumpRunning [L639] CALL, EXPR isHighWaterLevel() [L757] int retValue_acc ; [L758] int tmp ; [L759] int tmp___0 ; [L763] CALL, EXPR isHighWaterSensorDry() [L922] int retValue_acc ; [L925] COND TRUE waterLevel < 2 [L926] retValue_acc = 1 [L927] return (retValue_acc); [L763] RET, EXPR isHighWaterSensorDry() [L763] tmp = isHighWaterSensorDry() [L765] COND TRUE \read(tmp) [L766] tmp___0 = 0 [L770] retValue_acc = tmp___0 [L771] return (retValue_acc); [L639] RET, EXPR isHighWaterLevel() [L639] tmp = isHighWaterLevel() [L641] COND FALSE !(\read(tmp)) [L647] FCALL processEnvironment__wrappee__base() [L678] RET processEnvironment__wrappee__highWaterSensor() [L614] RET processEnvironment() [L620] CALL __utac_acc__Specification1_spec__1() [L524] int tmp ; [L525] int tmp___0 ; [L529] CALL, EXPR isMethaneLevelCritical() [L881] int retValue_acc ; [L884] retValue_acc = methaneLevelCritical [L885] return (retValue_acc); [L529] RET, EXPR isMethaneLevelCritical() [L529] tmp = isMethaneLevelCritical() [L531] COND FALSE !(\read(tmp)) [L620] RET __utac_acc__Specification1_spec__1() [L829] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 14:16:37,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607c38da-0d83-4677-a44a-d5f0daaec5b4/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)