./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.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_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/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_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/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_03fdc03f-94ef-47b3-8156-36384c4cb6b1/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 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:46:49,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:46:49,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:46:49,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:46:49,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:46:49,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:46:49,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:46:49,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:46:49,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:46:49,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:46:49,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:46:49,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:46:49,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:46:49,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:46:49,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:46:49,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:46:49,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:46:49,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:46:49,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:46:49,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:46:49,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:46:49,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:46:49,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:46:49,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:46:49,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:46:49,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:46:49,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:46:49,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:46:49,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:46:49,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:46:49,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:46:49,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:46:49,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:46:49,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:46:49,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:46:49,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:46:49,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:46:49,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:46:49,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:46:49,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:46:49,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:46:49,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:46:49,534 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:46:49,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:46:49,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:46:49,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:46:49,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:46:49,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:46:49,538 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:46:49,538 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:46:49,538 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:46:49,539 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:46:49,540 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:46:49,540 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:46:49,540 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:46:49,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:46:49,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:46:49,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:46:49,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:46:49,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:46:49,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:46:49,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:46:49,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:46:49,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:46:49,542 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:46:49,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:46:49,543 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:46:49,543 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:46:49,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:46:49,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:46:49,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:46:49,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:46:49,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:46:49,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:46:49,546 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:46:49,546 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_03fdc03f-94ef-47b3-8156-36384c4cb6b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2021-10-28 23:46:49,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:46:49,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:46:49,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:46:49,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:46:49,900 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:46:49,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-10-28 23:46:49,973 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/data/7d95427c8/f071112ddc2f4a5ba0b3e47334bfa49d/FLAG72862bf2c [2021-10-28 23:46:50,469 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:46:50,475 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-10-28 23:46:50,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/data/7d95427c8/f071112ddc2f4a5ba0b3e47334bfa49d/FLAG72862bf2c [2021-10-28 23:46:50,808 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/data/7d95427c8/f071112ddc2f4a5ba0b3e47334bfa49d [2021-10-28 23:46:50,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:46:50,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:46:50,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:46:50,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:46:50,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:46:50,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:46:50" (1/1) ... [2021-10-28 23:46:50,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cab48bc 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 23:46:50,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:46:50" (1/1) ... [2021-10-28 23:46:50,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:46:50,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:46:51,298 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_03fdc03f-94ef-47b3-8156-36384c4cb6b1/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-10-28 23:46:51,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:46:51,314 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:46:51,398 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_03fdc03f-94ef-47b3-8156-36384c4cb6b1/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-10-28 23:46:51,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:46:51,432 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:46:51,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:46:51 WrapperNode [2021-10-28 23:46:51,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:46:51,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:46:51,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:46:51,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:46:51,443 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 23:46:51,462 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 23:46:51,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:46:51,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:46:51,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:46:51,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:46:51,524 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 23:46:51,524 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 23:46:51,533 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 23:46:51,547 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 23:46:51,561 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 23:46:51,586 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 23:46:51,602 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 23:46:51,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:46:51,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:46:51,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:46:51,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:46:51,609 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 23:46:51,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:46:51,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:46:51,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:46:51,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:46:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:46:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:46:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:46:51,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:46:52,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:46:52,799 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2021-10-28 23:46:52,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:46:52 BoogieIcfgContainer [2021-10-28 23:46:52,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:46:52,803 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:46:52,803 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:46:52,806 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:46:52,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:46:52,808 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:46:50" (1/3) ... [2021-10-28 23:46:52,810 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45f10d60 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 23:46:52,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:46:52,810 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 23:46:52,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45f10d60 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 23:46:52,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:46:52,811 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 23:46:52,813 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2021-10-28 23:46:52,870 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:46:52,870 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:46:52,871 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:46:52,871 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:46:52,871 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:46:52,871 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:46:52,871 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:46:52,871 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:46:52,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 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 23:46:52,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-10-28 23:46:52,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:52,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:52,929 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:46:52,929 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:52,929 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:46:52,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 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 23:46:52,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-10-28 23:46:52,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:52,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:52,941 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:46:52,941 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:52,947 INFO L791 eck$LassoCheckResult]: Stem: 122#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 40#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~10, main_~tmp~7;havoc main_~retValue_acc~10;havoc main_~tmp~7; 119#L500true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 32#L508true main_#t~ret46 := valid_product_#res;main_~tmp~7 := main_#t~ret46;havoc main_#t~ret46; 132#L595true assume 0 != main_~tmp~7; 104#L572true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 41#L354-1true [2021-10-28 23:46:52,948 INFO L793 eck$LassoCheckResult]: Loop: 41#L354-1true assume !false; 134#L65true assume test_~splverifierCounter~0 < 4; 36#L66true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 69#L74true assume !(0 != test_~tmp~0); 92#L74-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 120#L84true assume !(0 != test_~tmp___0~0); 125#L84-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 121#L94true assume 0 != test_~tmp___2~0; 98#L100-2true assume !(0 != ~pumpRunning~0); 19#L136true assume !(0 != ~systemActive~0); 93#L143true havoc __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 29#L447true __utac_acc__Specification4_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret33;havoc __utac_acc__Specification4_spec__1_#t~ret33; 58#L354true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 41#L354-1true [2021-10-28 23:46:52,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:52,954 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 23:46:52,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:52,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359532341] [2021-10-28 23:46:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:52,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:53,311 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:53,510 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:53,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1679097918, now seen corresponding path program 1 times [2021-10-28 23:46:53,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:53,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376573863] [2021-10-28 23:46:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:53,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:53,522 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:53,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:53,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:53,551 INFO L85 PathProgramCache]: Analyzing trace with hash 35181020, now seen corresponding path program 1 times [2021-10-28 23:46:53,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:53,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407425148] [2021-10-28 23:46:53,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:53,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:53,754 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 23:46:53,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:46:53,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407425148] [2021-10-28 23:46:53,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407425148] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:46:53,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:46:53,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:46:53,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414939877] [2021-10-28 23:46:53,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:46:53,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:46:53,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:46:53,919 INFO L87 Difference]: Start difference. First operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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 23:46:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:46:54,151 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2021-10-28 23:46:54,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:46:54,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 187 transitions. [2021-10-28 23:46:54,159 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2021-10-28 23:46:54,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2021-10-28 23:46:54,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2021-10-28 23:46:54,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2021-10-28 23:46:54,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2021-10-28 23:46:54,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:46:54,171 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2021-10-28 23:46:54,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2021-10-28 23:46:54,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-28 23:46:54,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.44) internal successors, (180), 124 states have internal predecessors, (180), 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 23:46:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2021-10-28 23:46:54,212 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2021-10-28 23:46:54,217 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2021-10-28 23:46:54,217 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:46:54,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2021-10-28 23:46:54,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2021-10-28 23:46:54,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:54,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:54,221 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:46:54,222 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:54,222 INFO L791 eck$LassoCheckResult]: Stem: 406#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 344#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~10, main_~tmp~7;havoc main_~retValue_acc~10;havoc main_~tmp~7; 345#L500 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 332#L508 main_#t~ret46 := valid_product_#res;main_~tmp~7 := main_#t~ret46;havoc main_#t~ret46; 333#L595 assume 0 != main_~tmp~7; 400#L572 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 307#L354-1 [2021-10-28 23:46:54,222 INFO L793 eck$LassoCheckResult]: Loop: 307#L354-1 assume !false; 346#L65 assume test_~splverifierCounter~0 < 4; 337#L66 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 338#L74 assume !(0 != test_~tmp~0); 375#L74-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 393#L84 assume !(0 != test_~tmp___0~0); 387#L84-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 405#L94 assume 0 != test_~tmp___2~0; 363#L100-2 assume !(0 != ~pumpRunning~0); 305#L136 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 312#L194 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 391#L168-1 assume !(0 == ~pumpRunning~0); 287#L143 havoc __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 328#L447 __utac_acc__Specification4_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret33;havoc __utac_acc__Specification4_spec__1_#t~ret33; 329#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 307#L354-1 [2021-10-28 23:46:54,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,223 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 23:46:54,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849651962] [2021-10-28 23:46:54,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,279 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:54,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1986081045, now seen corresponding path program 1 times [2021-10-28 23:46:54,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973210843] [2021-10-28 23:46:54,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:46:54,413 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 23:46:54,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:46:54,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973210843] [2021-10-28 23:46:54,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973210843] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:46:54,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:46:54,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:46:54,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141690727] [2021-10-28 23:46:54,441 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:46:54,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:46:54,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:46:54,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:46:54,442 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:46:54,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:46:54,586 INFO L93 Difference]: Finished difference Result 166 states and 228 transitions. [2021-10-28 23:46:54,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:46:54,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 228 transitions. [2021-10-28 23:46:54,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-10-28 23:46:54,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 166 states and 228 transitions. [2021-10-28 23:46:54,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2021-10-28 23:46:54,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2021-10-28 23:46:54,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 166 states and 228 transitions. [2021-10-28 23:46:54,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:46:54,595 INFO L681 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2021-10-28 23:46:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states and 228 transitions. [2021-10-28 23:46:54,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-10-28 23:46:54,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 165 states have internal predecessors, (228), 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 23:46:54,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2021-10-28 23:46:54,607 INFO L704 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2021-10-28 23:46:54,607 INFO L587 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2021-10-28 23:46:54,607 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:46:54,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 228 transitions. [2021-10-28 23:46:54,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-10-28 23:46:54,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:46:54,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:46:54,610 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:46:54,610 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:46:54,610 INFO L791 eck$LassoCheckResult]: Stem: 711#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 644#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~10, main_~tmp~7;havoc main_~retValue_acc~10;havoc main_~tmp~7; 645#L500 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 632#L508 main_#t~ret46 := valid_product_#res;main_~tmp~7 := main_#t~ret46;havoc main_#t~ret46; 633#L595 assume 0 != main_~tmp~7; 704#L572 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 604#L354-1 [2021-10-28 23:46:54,611 INFO L793 eck$LassoCheckResult]: Loop: 604#L354-1 assume !false; 646#L65 assume test_~splverifierCounter~0 < 4; 637#L66 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 638#L74 assume !(0 != test_~tmp~0); 681#L74-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 697#L84 assume !(0 != test_~tmp___0~0); 692#L84-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 710#L94 assume 0 != test_~tmp___2~0; 663#L100-2 assume !(0 != ~pumpRunning~0); 609#L136 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 610#L194 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 696#L168-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 619#L455-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 620#L460-1 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 631#L314-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 594#L314-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 595#L320-1 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 627#L172-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 584#L143 havoc __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 628#L447 __utac_acc__Specification4_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret33;havoc __utac_acc__Specification4_spec__1_#t~ret33; 629#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 604#L354-1 [2021-10-28 23:46:54,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 23:46:54,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740185211] [2021-10-28 23:46:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,651 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:54,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1392929207, now seen corresponding path program 1 times [2021-10-28 23:46:54,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147026248] [2021-10-28 23:46:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,706 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,713 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:46:54,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:46:54,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1849000401, now seen corresponding path program 1 times [2021-10-28 23:46:54,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:46:54,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909912059] [2021-10-28 23:46:54,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:46:54,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:46:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,763 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:46:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:46:54,832 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:56,966 WARN L207 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 23:48:58,481 WARN L207 SmtUtils]: Spent 30.35 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 23:48:58,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:48:58 BoogieIcfgContainer [2021-10-28 23:48:58,709 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:48:58,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:48:58,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:48:58,711 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:48:58,711 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 23:48:58,715 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:48:58,779 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:48:58,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:48:58,780 INFO L168 Benchmark]: Toolchain (without parser) took 127964.82 ms. Allocated memory was 115.3 MB in the beginning and 180.4 MB in the end (delta: 65.0 MB). Free memory was 72.8 MB in the beginning and 138.2 MB in the end (delta: -65.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:48:58,780 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 115.3 MB. Free memory was 89.9 MB in the beginning and 89.9 MB in the end (delta: 63.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:48:58,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.38 ms. Allocated memory is still 115.3 MB. Free memory was 72.6 MB in the beginning and 81.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:58,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.65 ms. Allocated memory is still 115.3 MB. Free memory was 81.0 MB in the beginning and 77.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:58,782 INFO L168 Benchmark]: Boogie Preprocessor took 92.57 ms. Allocated memory is still 115.3 MB. Free memory was 77.1 MB in the beginning and 74.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:58,783 INFO L168 Benchmark]: RCFGBuilder took 1194.02 ms. Allocated memory was 115.3 MB in the beginning and 180.4 MB in the end (delta: 65.0 MB). Free memory was 74.3 MB in the beginning and 145.0 MB in the end (delta: -70.6 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:58,783 INFO L168 Benchmark]: BuchiAutomizer took 125906.63 ms. Allocated memory is still 180.4 MB. Free memory was 145.0 MB in the beginning and 141.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 102.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:58,784 INFO L168 Benchmark]: Witness Printer took 68.72 ms. Allocated memory is still 180.4 MB. Free memory was 141.2 MB in the beginning and 138.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:58,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 115.3 MB. Free memory was 89.9 MB in the beginning and 89.9 MB in the end (delta: 63.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.38 ms. Allocated memory is still 115.3 MB. Free memory was 72.6 MB in the beginning and 81.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.65 ms. Allocated memory is still 115.3 MB. Free memory was 81.0 MB in the beginning and 77.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.57 ms. Allocated memory is still 115.3 MB. Free memory was 77.1 MB in the beginning and 74.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1194.02 ms. Allocated memory was 115.3 MB in the beginning and 180.4 MB in the end (delta: 65.0 MB). Free memory was 74.3 MB in the beginning and 145.0 MB in the end (delta: -70.6 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 125906.63 ms. Allocated memory is still 180.4 MB. Free memory was 145.0 MB in the beginning and 141.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 102.5 MB. Max. memory is 16.1 GB. * Witness Printer took 68.72 ms. Allocated memory is still 180.4 MB. Free memory was 141.2 MB in the beginning and 138.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 166 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 125.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 125.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 166 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 347 SDtfs, 855 SDslu, 68 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 64]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5637} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@85f3387=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16afbe08=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71fef3a2=0, NULL=5637, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@763873b4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50c0c361=0, NULL=0, NULL=5643, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ac58474=0, NULL=0, retValue_acc=0, NULL=5651, NULL=0, tmp___1=0, NULL=0, NULL=5652, NULL=5663, cleanupTimeShifts=4, tmp=0, NULL=5650, waterLevel=1, NULL=0, NULL=0, NULL=5653, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=5661, NULL=0, NULL=0, tmp=1, \result=1, NULL=0, NULL=0, tmp=1, NULL=0, NULL=5639, NULL=0, tmp=1, NULL=0, NULL=0, NULL=5657, NULL=5648, retValue_acc=1, NULL=5655, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bfa3608=0, head=0, NULL=0, NULL=0, NULL=5646, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@463da92c=0, NULL=0, NULL=0, NULL=5644, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eb15a04=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a6c14e5=0, tmp___0=0, NULL=0, NULL=0, NULL=5659, NULL=0, NULL=0, NULL=5658, tmp=0, tmp___0=0, NULL=0, systemActive=1, NULL=5662, \result=1, \result=0, retValue_acc=0, NULL=5645, NULL=5664, \result=0, NULL=5656, NULL=0, NULL=0, NULL=5654, retValue_acc=1, NULL=5642, NULL=5640, NULL=5641, tmp___2=56, splverifierCounter=0, NULL=0, NULL=5665, NULL=5638, NULL=0, NULL=0, NULL=5647, NULL=0, NULL=5649, NULL=5660} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L586] int retValue_acc ; [L587] int tmp ; [L504] int retValue_acc ; [L507] retValue_acc = 1 [L508] return (retValue_acc); [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L191] int tmp ; [L194] COND FALSE !(\read(pumpRunning)) [L165] int tmp ; [L168] COND TRUE ! pumpRunning [L306] int retValue_acc ; [L307] int tmp ; [L308] int tmp___0 ; [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L312] tmp = isHighWaterSensorDry() [L314] COND TRUE \read(tmp) [L315] tmp___0 = 0 [L319] retValue_acc = tmp___0 [L320] return (retValue_acc); [L170] tmp = isHighWaterLevel() [L172] COND FALSE !(\read(tmp)) [L347] int tmp ; [L348] int tmp___0 ; [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L352] tmp = getWaterLevel() [L354] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:48:58,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fdc03f-94ef-47b3-8156-36384c4cb6b1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...