./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt --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 b71d0221e52ad3170b58f60abcb38413b01772c1 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 00:35:16,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:35:16,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:35:16,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:35:16,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:35:16,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:35:16,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:35:16,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:35:16,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:35:16,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:35:16,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:35:16,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:35:16,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:35:16,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:35:16,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:35:16,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:35:16,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:35:16,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:35:16,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:35:16,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:35:16,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:35:16,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:35:16,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:35:16,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:35:16,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:35:16,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:35:16,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:35:16,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:35:16,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:35:16,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:35:16,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:35:16,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:35:16,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:35:16,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:35:16,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:35:16,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:35:16,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:35:16,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:35:16,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:35:16,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:35:16,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:35:16,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:35:16,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:35:16,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:35:16,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:35:16,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:35:16,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:35:16,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:35:16,637 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:35:16,637 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:35:16,637 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:35:16,637 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:35:16,638 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:35:16,639 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:35:16,639 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:35:16,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:35:16,639 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:35:16,639 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:35:16,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:35:16,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:35:16,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:35:16,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:35:16,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:35:16,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:35:16,641 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:35:16,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:35:16,641 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:35:16,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:35:16,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:35:16,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:35:16,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:35:16,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:35:16,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:35:16,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:35:16,646 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:35:16,646 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_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71d0221e52ad3170b58f60abcb38413b01772c1 [2021-10-13 00:35:16,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:35:16,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:35:16,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:35:16,982 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:35:16,983 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:35:16,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-10-13 00:35:17,070 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/data/d6dccfcc8/0a1fcd52b5a2420daa2c5e09128b9ad5/FLAGce51d8a15 [2021-10-13 00:35:17,637 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:35:17,638 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-10-13 00:35:17,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/data/d6dccfcc8/0a1fcd52b5a2420daa2c5e09128b9ad5/FLAGce51d8a15 [2021-10-13 00:35:17,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/data/d6dccfcc8/0a1fcd52b5a2420daa2c5e09128b9ad5 [2021-10-13 00:35:17,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:35:17,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:35:17,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:35:17,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:35:17,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:35:17,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:17" (1/1) ... [2021-10-13 00:35:17,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a97bd85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:17, skipping insertion in model container [2021-10-13 00:35:17,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:17" (1/1) ... [2021-10-13 00:35:17,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:35:18,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:35:18,267 WARN L228 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_0339bb93-52b2-4abd-8aca-eeffba1ccb90/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[1817,1830] [2021-10-13 00:35:18,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:35:18,365 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:35:18,380 WARN L228 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_0339bb93-52b2-4abd-8aca-eeffba1ccb90/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[1817,1830] [2021-10-13 00:35:18,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:35:18,495 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:35:18,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18 WrapperNode [2021-10-13 00:35:18,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:35:18,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:35:18,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:35:18,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:35:18,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:35:18,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:35:18,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:35:18,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:35:18,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:35:18,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:35:18,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:35:18,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:35:18,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (1/1) ... [2021-10-13 00:35:18,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:35:18,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:18,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:35:18,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:35:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:35:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:35:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:35:18,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:35:19,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:35:19,567 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-10-13 00:35:19,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:19 BoogieIcfgContainer [2021-10-13 00:35:19,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:35:19,570 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:35:19,571 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:35:19,574 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:35:19,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:35:19,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:35:17" (1/3) ... [2021-10-13 00:35:19,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@767f31d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:35:19, skipping insertion in model container [2021-10-13 00:35:19,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:35:19,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:18" (2/3) ... [2021-10-13 00:35:19,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@767f31d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:35:19, skipping insertion in model container [2021-10-13 00:35:19,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:35:19,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:19" (3/3) ... [2021-10-13 00:35:19,579 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2021-10-13 00:35:19,663 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:35:19,663 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:35:19,663 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:35:19,663 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:35:19,664 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:35:19,664 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:35:19,664 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:35:19,664 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:35:19,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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) [2021-10-13 00:35:19,746 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 00:35:19,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:35:19,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:35:19,754 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:19,768 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:19,768 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:35:19,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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) [2021-10-13 00:35:19,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 00:35:19,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:35:19,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:35:19,795 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:19,795 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:19,800 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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 52#L-1true havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 63#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 79#L75true main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 67#L802true assume 0 != main_~tmp~6; 29#L777true ~switchedOnBeforeTS~0 := 0; 4#L823true havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 72#L844-1true [2021-10-13 00:35:19,800 INFO L793 eck$LassoCheckResult]: Loop: 72#L844-1true assume !false; 33#L660true assume test_~splverifierCounter~0 < 4; 54#L661true test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 55#L669true assume !(0 != test_~tmp~5); 45#L669-1true test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 42#L679true assume !(0 != test_~tmp___0~1); 24#L679-1true test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 19#L689true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 23#L697-1true havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 10#L197true __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 58#L833true assume !(0 != ~pumpRunning~0); 68#L112true assume !(0 != ~systemActive~0); 66#L119true havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;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#L941true __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 12#L844true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 72#L844-1true [2021-10-13 00:35:19,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:19,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:35:19,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:19,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801539790] [2021-10-13 00:35:19,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:19,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:20,114 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:35:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:20,341 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:35:20,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:20,345 INFO L82 PathProgramCache]: Analyzing trace with hash 675287606, now seen corresponding path program 1 times [2021-10-13 00:35:20,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:20,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331390778] [2021-10-13 00:35:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:20,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:20,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:20,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:20,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331390778] [2021-10-13 00:35:20,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331390778] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:35:20,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:35:20,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:35:20,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520384113] [2021-10-13 00:35:20,414 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:35:20,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:20,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:35:20,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:35:20,432 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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) [2021-10-13 00:35:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:20,486 INFO L93 Difference]: Finished difference Result 165 states and 233 transitions. [2021-10-13 00:35:20,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:35:20,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 233 transitions. [2021-10-13 00:35:20,497 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2021-10-13 00:35:20,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 151 states and 218 transitions. [2021-10-13 00:35:20,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2021-10-13 00:35:20,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2021-10-13 00:35:20,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 218 transitions. [2021-10-13 00:35:20,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:35:20,507 INFO L681 BuchiCegarLoop]: Abstraction has 151 states and 218 transitions. [2021-10-13 00:35:20,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 218 transitions. [2021-10-13 00:35:20,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2021-10-13 00:35:20,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.4429530201342282) internal successors, (215), 148 states have internal predecessors, (215), 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) [2021-10-13 00:35:20,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 215 transitions. [2021-10-13 00:35:20,545 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2021-10-13 00:35:20,545 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2021-10-13 00:35:20,545 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:35:20,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 215 transitions. [2021-10-13 00:35:20,549 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2021-10-13 00:35:20,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:35:20,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:35:20,550 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:20,550 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:20,551 INFO L791 eck$LassoCheckResult]: Stem: 341#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 331#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 332#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 340#L75 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 343#L802 assume 0 != main_~tmp~6; 305#L777 ~switchedOnBeforeTS~0 := 0; 260#L823 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 261#L844-1 [2021-10-13 00:35:20,551 INFO L793 eck$LassoCheckResult]: Loop: 261#L844-1 assume !false; 359#L660 assume test_~splverifierCounter~0 < 4; 360#L661 test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 399#L669 assume !(0 != test_~tmp~5); 397#L669-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 396#L679 assume !(0 != test_~tmp___0~1); 392#L679-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 391#L689 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 292#L697-1 havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 369#L197 __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 366#L833 assume !(0 != ~pumpRunning~0); 344#L112 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 345#L144 assume !(0 == ~pumpRunning~0); 342#L119 havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;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; 326#L941 __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 276#L844 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 261#L844-1 [2021-10-13 00:35:20,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:20,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:35:20,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:20,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208956997] [2021-10-13 00:35:20,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:20,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:20,610 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:35:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:20,692 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:35:20,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:20,694 INFO L82 PathProgramCache]: Analyzing trace with hash -572531389, now seen corresponding path program 1 times [2021-10-13 00:35:20,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:20,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245809182] [2021-10-13 00:35:20,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:20,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:20,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:20,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245809182] [2021-10-13 00:35:20,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245809182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:35:20,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:35:20,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:35:20,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123870521] [2021-10-13 00:35:20,741 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:35:20,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:20,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:35:20,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:35:20,744 INFO L87 Difference]: Start difference. First operand 149 states and 215 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-10-13 00:35:20,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:20,824 INFO L93 Difference]: Finished difference Result 248 states and 343 transitions. [2021-10-13 00:35:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:35:20,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 343 transitions. [2021-10-13 00:35:20,829 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2021-10-13 00:35:20,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 248 states and 343 transitions. [2021-10-13 00:35:20,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2021-10-13 00:35:20,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2021-10-13 00:35:20,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 343 transitions. [2021-10-13 00:35:20,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:35:20,836 INFO L681 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2021-10-13 00:35:20,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 343 transitions. [2021-10-13 00:35:20,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2021-10-13 00:35:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 248 states have (on average 1.3830645161290323) internal successors, (343), 247 states have internal predecessors, (343), 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) [2021-10-13 00:35:20,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 343 transitions. [2021-10-13 00:35:20,853 INFO L704 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2021-10-13 00:35:20,853 INFO L587 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2021-10-13 00:35:20,853 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:35:20,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 343 transitions. [2021-10-13 00:35:20,855 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2021-10-13 00:35:20,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:35:20,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:35:20,857 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:20,857 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] [2021-10-13 00:35:20,857 INFO L791 eck$LassoCheckResult]: Stem: 758#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 745#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 746#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 757#L75 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 762#L802 assume 0 != main_~tmp~6; 710#L777 ~switchedOnBeforeTS~0 := 0; 663#L823 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 664#L844-1 [2021-10-13 00:35:20,857 INFO L793 eck$LassoCheckResult]: Loop: 664#L844-1 assume !false; 792#L660 assume test_~splverifierCounter~0 < 4; 791#L661 test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 790#L669 assume !(0 != test_~tmp~5); 789#L669-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 808#L679 assume !(0 != test_~tmp___0~1); 806#L679-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 805#L689 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 700#L697-1 havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 676#L197 __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 677#L833 assume !(0 != ~pumpRunning~0); 752#L112 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 678#L144 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 679#L949 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 747#L954 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 770#L246 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 698#L246-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 699#L252 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 722#L148 assume !(0 != processEnvironment_~tmp~0); 724#L119 havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;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; 797#L941 __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 793#L844 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 664#L844-1 [2021-10-13 00:35:20,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:20,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 00:35:20,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:20,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134944046] [2021-10-13 00:35:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:20,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:20,902 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:35:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:21,010 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:35:21,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:21,011 INFO L82 PathProgramCache]: Analyzing trace with hash -535419313, now seen corresponding path program 1 times [2021-10-13 00:35:21,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:21,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755274405] [2021-10-13 00:35:21,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:21,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:21,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:21,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:21,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755274405] [2021-10-13 00:35:21,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755274405] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:35:21,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:35:21,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:35:21,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104384808] [2021-10-13 00:35:21,078 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:35:21,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:21,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:35:21,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:35:21,079 INFO L87 Difference]: Start difference. First operand 248 states and 343 transitions. cyclomatic complexity: 98 Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-13 00:35:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:21,290 INFO L93 Difference]: Finished difference Result 923 states and 1283 transitions. [2021-10-13 00:35:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:35:21,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 923 states and 1283 transitions. [2021-10-13 00:35:21,303 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 662 [2021-10-13 00:35:21,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 923 states to 923 states and 1283 transitions. [2021-10-13 00:35:21,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 923 [2021-10-13 00:35:21,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 923 [2021-10-13 00:35:21,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 923 states and 1283 transitions. [2021-10-13 00:35:21,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:35:21,328 INFO L681 BuchiCegarLoop]: Abstraction has 923 states and 1283 transitions. [2021-10-13 00:35:21,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states and 1283 transitions. [2021-10-13 00:35:21,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 483. [2021-10-13 00:35:21,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 483 states have (on average 1.3561076604554865) internal successors, (655), 482 states have internal predecessors, (655), 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) [2021-10-13 00:35:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 655 transitions. [2021-10-13 00:35:21,380 INFO L704 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2021-10-13 00:35:21,380 INFO L587 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2021-10-13 00:35:21,380 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:35:21,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 483 states and 655 transitions. [2021-10-13 00:35:21,384 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 354 [2021-10-13 00:35:21,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:35:21,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:35:21,387 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:21,388 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] [2021-10-13 00:35:21,388 INFO L791 eck$LassoCheckResult]: Stem: 1948#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1936#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 1937#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1947#L75 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 1951#L802 assume 0 != main_~tmp~6; 1900#L777 ~switchedOnBeforeTS~0 := 0; 1853#L823 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1854#L844-1 [2021-10-13 00:35:21,388 INFO L793 eck$LassoCheckResult]: Loop: 1854#L844-1 assume !false; 2120#L660 assume test_~splverifierCounter~0 < 4; 2119#L661 test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 2118#L669 assume !(0 != test_~tmp~5); 2116#L669-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 2115#L679 assume !(0 != test_~tmp___0~1); 2113#L679-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 2112#L689 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2079#L697-1 havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2147#L197 __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 1942#L833 assume !(0 != ~pumpRunning~0); 1943#L112 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 1865#L144 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1866#L949 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1938#L954 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 1956#L246 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 1891#L246-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1892#L252 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 1915#L148 assume !(0 != processEnvironment_~tmp~0); 1917#L119 havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;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; 2126#L941 __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 2125#L844 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2124#L197-1 __utac_acc__Specification5_spec__3_#t~ret69 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret69;havoc __utac_acc__Specification5_spec__3_#t~ret69; 2123#L848 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1854#L844-1 [2021-10-13 00:35:21,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:21,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-13 00:35:21,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:21,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157080825] [2021-10-13 00:35:21,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:21,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:21,447 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:35:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:21,511 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:35:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:21,512 INFO L82 PathProgramCache]: Analyzing trace with hash 858102058, now seen corresponding path program 1 times [2021-10-13 00:35:21,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:21,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327187185] [2021-10-13 00:35:21,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:21,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:21,525 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:35:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:21,536 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:35:21,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:21,537 INFO L82 PathProgramCache]: Analyzing trace with hash 717508720, now seen corresponding path program 1 times [2021-10-13 00:35:21,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:21,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285108597] [2021-10-13 00:35:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:21,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:21,602 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:35:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:21,671 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:20,226 WARN L207 SmtUtils]: Spent 58.13 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:37:25,993 WARN L207 SmtUtils]: Spent 31.95 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:37:26,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:37:26 BoogieIcfgContainer [2021-10-13 00:37:26,174 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:37:26,174 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:37:26,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:37:26,175 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:37:26,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:19" (3/4) ... [2021-10-13 00:37:26,180 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:37:26,242 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:37:26,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:37:26,243 INFO L168 Benchmark]: Toolchain (without parser) took 128279.83 ms. Allocated memory was 98.6 MB in the beginning and 155.2 MB in the end (delta: 56.6 MB). Free memory was 63.8 MB in the beginning and 86.0 MB in the end (delta: -22.2 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:37:26,244 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:37:26,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.01 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 63.4 MB in the end (delta: 121.5 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:37:26,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.03 ms. Allocated memory is still 98.6 MB. Free memory was 63.4 MB in the beginning and 60.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:37:26,246 INFO L168 Benchmark]: Boogie Preprocessor took 68.81 ms. Allocated memory is still 98.6 MB. Free memory was 60.2 MB in the beginning and 58.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:37:26,247 INFO L168 Benchmark]: RCFGBuilder took 939.33 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 58.1 MB in the beginning and 71.4 MB in the end (delta: -13.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:37:26,248 INFO L168 Benchmark]: BuchiAutomizer took 126603.47 ms. Allocated memory was 121.6 MB in the beginning and 155.2 MB in the end (delta: 33.6 MB). Free memory was 71.4 MB in the beginning and 88.1 MB in the end (delta: -16.7 MB). Peak memory consumption was 79.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:37:26,248 INFO L168 Benchmark]: Witness Printer took 67.74 ms. Allocated memory is still 155.2 MB. Free memory was 88.1 MB in the beginning and 86.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:37:26,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 530.01 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 63.4 MB in the end (delta: 121.5 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.03 ms. Allocated memory is still 98.6 MB. Free memory was 63.4 MB in the beginning and 60.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.81 ms. Allocated memory is still 98.6 MB. Free memory was 60.2 MB in the beginning and 58.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 939.33 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 58.1 MB in the beginning and 71.4 MB in the end (delta: -13.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 126603.47 ms. Allocated memory was 121.6 MB in the beginning and 155.2 MB in the end (delta: 33.6 MB). Free memory was 71.4 MB in the beginning and 88.1 MB in the end (delta: -16.7 MB). Peak memory consumption was 79.5 MB. Max. memory is 16.1 GB. * Witness Printer took 67.74 ms. Allocated memory is still 155.2 MB. Free memory was 88.1 MB in the beginning and 86.0 MB in the end (delta: 2.1 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 483 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 126.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 125.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 92.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 442 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 483 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 404 SDtfs, 684 SDslu, 647 SDs, 0 SdLazy, 136 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 183.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 659]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13816} State at position 1 is {NULL=0, NULL=13843, NULL=0, retValue_acc=1, NULL=13816, NULL=13833, NULL=13840, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c5a52=0, NULL=13828, NULL=13818, methaneLevelCritical=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=13835, NULL=0, cleanupTimeShifts=4, NULL=13832, NULL=13826, NULL=0, waterLevel=1, NULL=13827, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5152eb56=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=13834, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73cc43c8=0, tmp=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=13838, tmp=1, NULL=0, NULL=0, tmp___0=0, NULL=13837, tmp=0, NULL=13836, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c7e56a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@99b8d31=0, head=0, NULL=13820, NULL=13819, NULL=0, retValue_acc=0, NULL=13841, tmp=1, tmp___0=0, NULL=0, switchedOnBeforeTS=0, NULL=13830, NULL=13842, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=13829, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bed7ba=0, NULL=13823, tmp___0=0, NULL=13821, \result=0, NULL=13824, NULL=0, NULL=0, NULL=0, NULL=13817, NULL=13839, NULL=13822, retValue_acc=1, tmp___2=69, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=13825, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@787aa5de=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c03f18f=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c26351b=0, NULL=13831, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@364ceda3=0, NULL=0, NULL=0, NULL=13844, NULL=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L449] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L718] int cleanupTimeShifts = 4; [L817] int switchedOnBeforeTS ; [L866] int waterLevel = 1; [L867] int methaneLevelCritical = 0; [L793] int retValue_acc ; [L794] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L800] tmp = valid_product() [L802] COND TRUE \read(tmp) [L822] switchedOnBeforeTS = 0 [L650] int splverifierCounter ; [L651] int tmp ; [L652] int tmp___0 ; [L653] int tmp___1 ; [L654] int tmp___2 ; [L657] splverifierCounter = 0 Loop: [L659] COND TRUE 1 [L661] COND TRUE splverifierCounter < 4 [L667] tmp = __VERIFIER_nondet_int() [L669] COND FALSE !(\read(tmp)) [L677] tmp___0 = __VERIFIER_nondet_int() [L679] COND FALSE !(\read(tmp___0)) [L687] tmp___2 = __VERIFIER_nondet_int() [L689] COND TRUE \read(tmp___2) [L275] systemActive = 1 [L193] int retValue_acc ; [L196] retValue_acc = pumpRunning [L197] return (retValue_acc); [L831] switchedOnBeforeTS = isPumpRunning() [L112] COND FALSE !(\read(pumpRunning)) [L119] COND TRUE \read(systemActive) [L141] int tmp ; [L144] COND TRUE ! pumpRunning [L238] int retValue_acc ; [L239] int tmp ; [L240] int tmp___0 ; [L946] int retValue_acc ; [L949] COND TRUE waterLevel < 2 [L950] retValue_acc = 1 [L951] return (retValue_acc); [L244] tmp = isHighWaterSensorDry() [L246] COND TRUE \read(tmp) [L247] tmp___0 = 0 [L251] retValue_acc = tmp___0 [L252] return (retValue_acc); [L146] tmp = isHighWaterLevel() [L148] COND FALSE !(\read(tmp)) [L837] int tmp ; [L838] int tmp___0 ; [L937] int retValue_acc ; [L940] retValue_acc = waterLevel [L941] return (retValue_acc); [L842] tmp = getWaterLevel() [L844] COND TRUE tmp != 2 [L193] int retValue_acc ; [L196] retValue_acc = pumpRunning [L197] return (retValue_acc); [L846] tmp___0 = isPumpRunning() [L848] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:37:26,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0339bb93-52b2-4abd-8aca-eeffba1ccb90/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...