./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD --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 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-b2eff8b [2021-10-28 23:46:49,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:46:49,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:46:49,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:46:49,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:46:49,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:46:49,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:46:49,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:46:49,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:46:49,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:46:49,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:46:49,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:46:49,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:46:49,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:46:49,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:46:49,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:46:49,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:46:49,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:46:49,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:46:49,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:46:49,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:46:49,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:46:49,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:46:49,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:46:49,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:46:49,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:46:49,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:46:49,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:46:49,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:46:49,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:46:49,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:46:49,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:46:49,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:46:49,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:46:49,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:46:49,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:46:49,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:46:49,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:46:49,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:46:49,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:46:49,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:46:49,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:46:49,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:46:49,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:46:49,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:46:49,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:46:49,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:46:49,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:46:49,547 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:46:49,547 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:46:49,547 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:46:49,547 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:46:49,548 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:46:49,549 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:46:49,549 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:46:49,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:46:49,549 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:46:49,550 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:46:49,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:46:49,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:46:49,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:46:49,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:46:49,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:46:49,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:46:49,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:46:49,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:46:49,552 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:46:49,552 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:46:49,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:46:49,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:46:49,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:46:49,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:46:49,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:46:49,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:46:49,555 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:46:49,555 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_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 [2021-10-28 23:46:49,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:46:49,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:46:49,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:46:49,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:46:49,835 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:46:49,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2021-10-28 23:46:49,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/data/8b953ba9c/8de3981688864e75985ec32bd05e6386/FLAG296d1a1f9 [2021-10-28 23:46:50,528 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:46:50,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2021-10-28 23:46:50,543 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/data/8b953ba9c/8de3981688864e75985ec32bd05e6386/FLAG296d1a1f9 [2021-10-28 23:46:50,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/data/8b953ba9c/8de3981688864e75985ec32bd05e6386 [2021-10-28 23:46:50,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:46:50,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:46:50,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:46:50,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:46:50,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:46:50,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:46:50" (1/1) ... [2021-10-28 23:46:50,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4ef9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:50, skipping insertion in model container [2021-10-28 23:46:50,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:46:50" (1/1) ... [2021-10-28 23:46:50,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:46:50,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:46:51,122 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_136f02cd-83e7-4455-9804-7f6b7e3a0262/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2021-10-28 23:46:51,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:46:51,196 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:46:51,240 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_136f02cd-83e7-4455-9804-7f6b7e3a0262/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2021-10-28 23:46:51,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:46:51,299 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:46:51,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51 WrapperNode [2021-10-28 23:46:51,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:46:51,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:46:51,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:46:51,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:46:51,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:46:51,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:46:51,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:46:51,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:46:51,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:46:51,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:46:51,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:46:51,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:46:51,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (1/1) ... [2021-10-28 23:46:51,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:51,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:51,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:51,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:46:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:46:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:46:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:46:51,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:46:52,706 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:46:52,721 INFO L299 CfgBuilder]: Removed 356 assume(true) statements. [2021-10-28 23:46:52,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:46:52 BoogieIcfgContainer [2021-10-28 23:46:52,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:46:52,725 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:46:52,725 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:46:52,728 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:46:52,729 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:46:52,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:46:50" (1/3) ... [2021-10-28 23:46:52,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1db40f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:46:52, skipping insertion in model container [2021-10-28 23:46:52,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:46:52,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51" (2/3) ... [2021-10-28 23:46:52,731 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1db40f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:46:52, skipping insertion in model container [2021-10-28 23:46:52,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:46:52,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:46:52" (3/3) ... [2021-10-28 23:46:52,733 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2021-10-28 23:46:52,771 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:46:52,771 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:46:52,771 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:46:52,771 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:46:52,771 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:46:52,771 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:46:52,772 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:46:52,772 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:46:52,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 228 states, 227 states have (on average 1.5110132158590308) internal successors, (343), 227 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) [2021-10-28 23:46:52,850 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-28 23:46:52,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:52,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:52,858 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:52,858 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:52,859 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:46:52,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 228 states, 227 states have (on average 1.5110132158590308) internal successors, (343), 227 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) [2021-10-28 23:46:52,871 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-28 23:46:52,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:52,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:52,872 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:52,872 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:52,877 INFO L791 eck$LassoCheckResult]: Stem: 222#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 140#L-1true havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 165#L75true 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; 13#L83true main_#t~ret47 := valid_product_#res;main_~tmp~8 := main_#t~ret47;havoc main_#t~ret47; 96#L671true assume 0 != main_~tmp~8; 102#L647true ~methAndRunningLastTime~0 := 0; 115#L451true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 216#L462-1true [2021-10-28 23:46:52,878 INFO L793 eck$LassoCheckResult]: Loop: 216#L462-1true assume !false; 124#L378true assume test_~splverifierCounter~0 < 4; 85#L379true test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 154#L387true assume !(0 != test_~tmp~6); 67#L387-1true test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 104#L397true assume !(0 != test_~tmp___0~2); 86#L397-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 9#L407true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 127#L415-1true assume !(0 != ~pumpRunning~0); 11#L108true assume !(0 != ~systemActive~0); 47#L115true havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 212#L528-5true __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 64#L462true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 216#L462-1true [2021-10-28 23:46:52,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:52,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:46:52,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:52,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577255573] [2021-10-28 23:46:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:52,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:53,116 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:53,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:53,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:53,336 INFO L85 PathProgramCache]: Analyzing trace with hash 18699284, now seen corresponding path program 1 times [2021-10-28 23:46:53,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:53,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62570189] [2021-10-28 23:46:53,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:53,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:46:53,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:46:53,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62570189] [2021-10-28 23:46:53,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62570189] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:46:53,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:46:53,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:46:53,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295448048] [2021-10-28 23:46:53,408 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:46:53,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:46:53,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:46:53,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:46:53,429 INFO L87 Difference]: Start difference. First operand has 228 states, 227 states have (on average 1.5110132158590308) internal successors, (343), 227 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) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-28 23:46:53,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:46:53,521 INFO L93 Difference]: Finished difference Result 449 states and 661 transitions. [2021-10-28 23:46:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:46:53,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 449 states and 661 transitions. [2021-10-28 23:46:53,538 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 294 [2021-10-28 23:46:53,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 449 states to 435 states and 646 transitions. [2021-10-28 23:46:53,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 435 [2021-10-28 23:46:53,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 435 [2021-10-28 23:46:53,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 435 states and 646 transitions. [2021-10-28 23:46:53,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:46:53,564 INFO L681 BuchiCegarLoop]: Abstraction has 435 states and 646 transitions. [2021-10-28 23:46:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states and 646 transitions. [2021-10-28 23:46:53,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 433. [2021-10-28 23:46:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 433 states have (on average 1.4849884526558892) internal successors, (643), 432 states have internal predecessors, (643), 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) [2021-10-28 23:46:53,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 643 transitions. [2021-10-28 23:46:53,618 INFO L704 BuchiCegarLoop]: Abstraction has 433 states and 643 transitions. [2021-10-28 23:46:53,618 INFO L587 BuchiCegarLoop]: Abstraction has 433 states and 643 transitions. [2021-10-28 23:46:53,618 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:46:53,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 433 states and 643 transitions. [2021-10-28 23:46:53,622 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 292 [2021-10-28 23:46:53,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:53,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:53,624 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:53,624 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:53,624 INFO L791 eck$LassoCheckResult]: Stem: 948#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 883#L-1 havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 884#L75 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; 707#L83 main_#t~ret47 := valid_product_#res;main_~tmp~8 := main_#t~ret47;havoc main_#t~ret47; 708#L671 assume 0 != main_~tmp~8; 836#L647 ~methAndRunningLastTime~0 := 0; 843#L451 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 857#L462-1 [2021-10-28 23:46:53,624 INFO L793 eck$LassoCheckResult]: Loop: 857#L462-1 assume !false; 868#L378 assume test_~splverifierCounter~0 < 4; 824#L379 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 825#L387 assume !(0 != test_~tmp~6); 799#L387-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 800#L397 assume !(0 != test_~tmp___0~2); 736#L397-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 699#L407 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 701#L415-1 assume !(0 != ~pumpRunning~0); 687#L108 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 704#L192 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 921#L166-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 922#L140-3 assume !(0 == ~pumpRunning~0); 1022#L115 havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1021#L528-5 __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 1019#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 857#L462-1 [2021-10-28 23:46:53,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:53,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:46:53,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:53,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398404473] [2021-10-28 23:46:53,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:53,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:53,704 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:53,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:53,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:53,803 INFO L85 PathProgramCache]: Analyzing trace with hash -407199801, now seen corresponding path program 1 times [2021-10-28 23:46:53,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:53,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732868037] [2021-10-28 23:46:53,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:53,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:46:53,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:46:53,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732868037] [2021-10-28 23:46:53,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732868037] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:46:53,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:46:53,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:46:53,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108033689] [2021-10-28 23:46:53,822 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:46:53,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:46:53,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:46:53,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:46:53,823 INFO L87 Difference]: Start difference. First operand 433 states and 643 transitions. cyclomatic complexity: 213 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) [2021-10-28 23:46:53,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:46:53,960 INFO L93 Difference]: Finished difference Result 432 states and 611 transitions. [2021-10-28 23:46:53,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:46:53,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 432 states and 611 transitions. [2021-10-28 23:46:53,966 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2021-10-28 23:46:53,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 432 states to 432 states and 611 transitions. [2021-10-28 23:46:53,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 432 [2021-10-28 23:46:53,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 432 [2021-10-28 23:46:53,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 432 states and 611 transitions. [2021-10-28 23:46:53,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:46:53,980 INFO L681 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2021-10-28 23:46:53,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states and 611 transitions. [2021-10-28 23:46:54,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2021-10-28 23:46:54,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 432 states have (on average 1.4143518518518519) internal successors, (611), 431 states have internal predecessors, (611), 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) [2021-10-28 23:46:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 611 transitions. [2021-10-28 23:46:54,017 INFO L704 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2021-10-28 23:46:54,017 INFO L587 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2021-10-28 23:46:54,017 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:46:54,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 611 transitions. [2021-10-28 23:46:54,020 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2021-10-28 23:46:54,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:54,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:54,020 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:54,021 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] [2021-10-28 23:46:54,021 INFO L791 eck$LassoCheckResult]: Stem: 1755#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1626#L-1 havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 1627#L75 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; 1594#L83 main_#t~ret47 := valid_product_#res;main_~tmp~8 := main_#t~ret47;havoc main_#t~ret47; 1595#L671 assume 0 != main_~tmp~8; 1750#L647 ~methAndRunningLastTime~0 := 0; 1756#L451 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1713#L462-1 [2021-10-28 23:46:54,021 INFO L793 eck$LassoCheckResult]: Loop: 1713#L462-1 assume !false; 1577#L378 assume test_~splverifierCounter~0 < 4; 1578#L379 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 1656#L387 assume !(0 != test_~tmp~6); 1658#L387-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 1718#L397 assume !(0 != test_~tmp___0~2); 1629#L397-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 1580#L407 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1582#L415-1 assume !(0 != ~pumpRunning~0); 1587#L108 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1725#L192 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1710#L166-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1711#L140-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1704#L568-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1705#L573-3 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 1726#L311-9 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; 1727#L311-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1831#L317-3 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 1830#L144-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1568#L115 havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1671#L528-5 __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 1712#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 1713#L462-1 [2021-10-28 23:46:54,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:46:54,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336612829] [2021-10-28 23:46:54,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,065 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,152 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:54,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1236648395, now seen corresponding path program 1 times [2021-10-28 23:46:54,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340396503] [2021-10-28 23:46:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:46:54,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:46:54,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340396503] [2021-10-28 23:46:54,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340396503] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:46:54,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:46:54,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:46:54,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242484236] [2021-10-28 23:46:54,192 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:46:54,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:46:54,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:46:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:46:54,194 INFO L87 Difference]: Start difference. First operand 432 states and 611 transitions. cyclomatic complexity: 182 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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) [2021-10-28 23:46:54,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:46:54,355 INFO L93 Difference]: Finished difference Result 839 states and 1161 transitions. [2021-10-28 23:46:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:46:54,356 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 839 states and 1161 transitions. [2021-10-28 23:46:54,364 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 586 [2021-10-28 23:46:54,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 839 states to 839 states and 1161 transitions. [2021-10-28 23:46:54,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 839 [2021-10-28 23:46:54,374 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 839 [2021-10-28 23:46:54,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 839 states and 1161 transitions. [2021-10-28 23:46:54,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:46:54,377 INFO L681 BuchiCegarLoop]: Abstraction has 839 states and 1161 transitions. [2021-10-28 23:46:54,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states and 1161 transitions. [2021-10-28 23:46:54,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 468. [2021-10-28 23:46:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 468 states have (on average 1.3824786324786325) internal successors, (647), 467 states have internal predecessors, (647), 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) [2021-10-28 23:46:54,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 647 transitions. [2021-10-28 23:46:54,398 INFO L704 BuchiCegarLoop]: Abstraction has 468 states and 647 transitions. [2021-10-28 23:46:54,398 INFO L587 BuchiCegarLoop]: Abstraction has 468 states and 647 transitions. [2021-10-28 23:46:54,398 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:46:54,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 468 states and 647 transitions. [2021-10-28 23:46:54,402 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2021-10-28 23:46:54,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:54,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:54,405 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:54,405 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] [2021-10-28 23:46:54,405 INFO L791 eck$LassoCheckResult]: Stem: 3067#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2912#L-1 havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 2913#L75 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; 2876#L83 main_#t~ret47 := valid_product_#res;main_~tmp~8 := main_#t~ret47;havoc main_#t~ret47; 2877#L671 assume 0 != main_~tmp~8; 3062#L647 ~methAndRunningLastTime~0 := 0; 3068#L451 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3059#L462-1 [2021-10-28 23:46:54,406 INFO L793 eck$LassoCheckResult]: Loop: 3059#L462-1 assume !false; 2857#L378 assume test_~splverifierCounter~0 < 4; 2858#L379 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 2939#L387 assume !(0 != test_~tmp~6); 2941#L387-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 3015#L397 assume !(0 != test_~tmp___0~2); 2910#L397-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 2860#L407 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2862#L415-1 assume !(0 != ~pumpRunning~0); 3091#L108 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3165#L192 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3087#L166-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3160#L140-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2992#L568-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2993#L573-3 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 3024#L311-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 3025#L311-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 3142#L317-3 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 3138#L144-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2848#L115 havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 3180#L528-5 __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 3178#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 3059#L462-1 [2021-10-28 23:46:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-28 23:46:54,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240294698] [2021-10-28 23:46:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,452 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,529 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:54,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1283311539, now seen corresponding path program 1 times [2021-10-28 23:46:54,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682317230] [2021-10-28 23:46:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,543 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,553 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:54,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,554 INFO L85 PathProgramCache]: Analyzing trace with hash 416127097, now seen corresponding path program 1 times [2021-10-28 23:46:54,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055678097] [2021-10-28 23:46:54,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,597 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:59,464 WARN L207 SmtUtils]: Spent 1.08 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:49:04,750 WARN L207 SmtUtils]: Spent 30.80 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:49:04,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:49:04 BoogieIcfgContainer [2021-10-28 23:49:04,977 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:49:04,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:49:04,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:49:04,978 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:49:04,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:46:52" (3/4) ... [2021-10-28 23:49:04,982 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:49:05,068 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:49:05,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:49:05,070 INFO L168 Benchmark]: Toolchain (without parser) took 134232.92 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 65.9 MB in the beginning and 96.4 MB in the end (delta: -30.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:05,070 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 100.7 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:49:05,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.70 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 65.7 MB in the beginning and 89.8 MB in the end (delta: -24.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:05,072 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.78 ms. Allocated memory is still 125.8 MB. Free memory was 89.8 MB in the beginning and 84.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:05,073 INFO L168 Benchmark]: Boogie Preprocessor took 76.17 ms. Allocated memory is still 125.8 MB. Free memory was 84.3 MB in the beginning and 80.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:05,073 INFO L168 Benchmark]: RCFGBuilder took 1217.42 ms. Allocated memory is still 125.8 MB. Free memory was 80.1 MB in the beginning and 61.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:05,074 INFO L168 Benchmark]: BuchiAutomizer took 132252.22 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 61.0 MB in the beginning and 98.5 MB in the end (delta: -37.5 MB). Peak memory consumption was 64.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:05,075 INFO L168 Benchmark]: Witness Printer took 90.93 ms. Allocated memory is still 155.2 MB. Free memory was 98.5 MB in the beginning and 96.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:05,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 100.7 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 461.70 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 65.7 MB in the beginning and 89.8 MB in the end (delta: -24.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 128.78 ms. Allocated memory is still 125.8 MB. Free memory was 89.8 MB in the beginning and 84.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.17 ms. Allocated memory is still 125.8 MB. Free memory was 84.3 MB in the beginning and 80.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1217.42 ms. Allocated memory is still 125.8 MB. Free memory was 80.1 MB in the beginning and 61.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 132252.22 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 61.0 MB in the beginning and 98.5 MB in the end (delta: -37.5 MB). Peak memory consumption was 64.1 MB. Max. memory is 16.1 GB. * Witness Printer took 90.93 ms. Allocated memory is still 155.2 MB. Free memory was 98.5 MB in the beginning and 96.4 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 4 locations. The remainder module has 468 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 132.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 131.4s. Construction of modules took 0.2s. 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 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 373 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 468 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 862 SDtfs, 921 SDslu, 838 SDs, 0 SdLazy, 138 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10179} State at position 1 is {NULL=0, NULL=0, NULL=10179, NULL=25056, NULL=25063, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34dd07c5=0, NULL=0, NULL=25045, methaneLevelCritical=0, NULL=25048, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3094dca0=0, retValue_acc=0, NULL=0, tmp=0, NULL=25046, NULL=0, tmp___1=0, NULL=0, NULL=25057, cleanupTimeShifts=4, NULL=25059, NULL=10182, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@786f1546=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5575e0d7=65, waterLevel=1, NULL=0, NULL=25060, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30d806b2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f4805f7=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25ec1e08=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a2e0f5c=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=25053, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f6e65cd=0, NULL=0, tmp___0=0, NULL=10183, methAndRunningLastTime=0, NULL=25051, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=10184, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48c7d4ba=0, NULL=0, NULL=0, NULL=25052, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50d72986=0, NULL=0, tmp___0=0, NULL=0, NULL=25050, NULL=0, NULL=0, tmp=0, NULL=25061, NULL=0, systemActive=1, NULL=25047, NULL=0, retValue_acc=0, \result=0, retValue_acc=0, NULL=10180, NULL=25058, \result=0, NULL=25044, NULL=0, NULL=0, NULL=25054, NULL=25064, NULL=25049, NULL=10181, retValue_acc=1, tmp___0=0, tmp___2=65, splverifierCounter=0, NULL=0, \result=0, NULL=25042, NULL=25062, NULL=0, NULL=0, NULL=25043, NULL=0, NULL=25055, tmp=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; [L445] int methAndRunningLastTime ; [L485] int waterLevel = 1; [L486] int methaneLevelCritical = 0; [L588] int cleanupTimeShifts = 4; [L854] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int retValue_acc ; [L663] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L669] tmp = valid_product() [L671] COND TRUE \read(tmp) [L450] methAndRunningLastTime = 0 [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___2) [L359] systemActive = 1 [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L565] int retValue_acc ; [L568] COND TRUE waterLevel < 2 [L569] retValue_acc = 1 [L570] return (retValue_acc); [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L455] int tmp ; [L456] int tmp___0 ; [L524] int retValue_acc ; [L527] retValue_acc = methaneLevelCritical [L528] return (retValue_acc); [L460] tmp = isMethaneLevelCritical() [L462] COND FALSE !(\read(tmp)) [L478] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:49:05,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136f02cd-83e7-4455-9804-7f6b7e3a0262/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...