./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ab5fcec40cf56ec3fd09ff340006d3fee2f3418 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:57:13,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:57:13,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:57:13,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:57:13,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:57:13,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:57:13,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:57:13,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:57:13,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:57:13,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:57:13,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:57:13,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:57:13,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:57:13,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:57:13,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:57:13,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:57:13,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:57:13,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:57:13,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:57:13,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:57:13,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:57:13,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:57:13,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:57:13,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:57:13,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:57:13,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:57:13,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:57:13,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:57:13,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:57:13,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:57:13,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:57:13,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:57:13,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:57:13,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:57:13,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:57:13,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:57:13,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:57:13,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:57:13,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:57:13,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:57:13,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:57:13,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:57:13,553 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:57:13,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:57:13,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:57:13,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:57:13,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:57:13,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:57:13,560 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:57:13,560 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:57:13,561 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:57:13,561 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:57:13,562 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:57:13,563 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:57:13,563 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:57:13,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:57:13,564 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:57:13,564 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:57:13,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:57:13,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:57:13,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:57:13,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:57:13,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:57:13,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:57:13,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:57:13,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:57:13,567 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:57:13,567 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:57:13,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:57:13,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:57:13,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:57:13,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:57:13,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:57:13,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:57:13,572 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:57:13,572 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_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ab5fcec40cf56ec3fd09ff340006d3fee2f3418 [2021-10-13 00:57:13,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:57:13,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:57:13,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:57:13,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:57:13,969 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:57:13,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c [2021-10-13 00:57:14,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/data/5a405b4f0/49ebfe9d16f44ffda15675a20cc06f60/FLAGbcdf616f0 [2021-10-13 00:57:14,631 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:57:14,635 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c [2021-10-13 00:57:14,659 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/data/5a405b4f0/49ebfe9d16f44ffda15675a20cc06f60/FLAGbcdf616f0 [2021-10-13 00:57:14,929 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/data/5a405b4f0/49ebfe9d16f44ffda15675a20cc06f60 [2021-10-13 00:57:14,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:57:14,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:57:14,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:57:14,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:57:14,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:57:14,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:57:14" (1/1) ... [2021-10-13 00:57:14,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd7225e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:14, skipping insertion in model container [2021-10-13 00:57:14,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:57:14" (1/1) ... [2021-10-13 00:57:14,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:57:15,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:57:15,347 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_10b38e59-4527-4bf7-98ff-cf9f6087593c/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c[14465,14478] [2021-10-13 00:57:15,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:57:15,384 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:57:15,509 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_10b38e59-4527-4bf7-98ff-cf9f6087593c/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c[14465,14478] [2021-10-13 00:57:15,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:57:15,544 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:57:15,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15 WrapperNode [2021-10-13 00:57:15,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:57:15,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:57:15,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:57:15,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:57:15,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:57:15,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:57:15,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:57:15,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:57:15,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:57:15,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:57:15,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:57:15,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:57:15,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (1/1) ... [2021-10-13 00:57:15,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:57:15,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:57:15,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:57:15,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:57:15,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:57:15,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:57:15,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:57:15,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:57:16,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:57:16,788 INFO L299 CfgBuilder]: Removed 110 assume(true) statements. [2021-10-13 00:57:16,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:16 BoogieIcfgContainer [2021-10-13 00:57:16,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:57:16,792 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:57:16,792 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:57:16,797 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:57:16,798 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:57:16,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:57:14" (1/3) ... [2021-10-13 00:57:16,801 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f4b78e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:57:16, skipping insertion in model container [2021-10-13 00:57:16,801 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:57:16,801 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:15" (2/3) ... [2021-10-13 00:57:16,802 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f4b78e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:57:16, skipping insertion in model container [2021-10-13 00:57:16,802 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:57:16,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:16" (3/3) ... [2021-10-13 00:57:16,804 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product05.cil.c [2021-10-13 00:57:16,878 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:57:16,878 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:57:16,878 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:57:16,879 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:57:16,879 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:57:16,879 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:57:16,879 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:57:16,880 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:57:16,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:57:16,948 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-13 00:57:16,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:57:16,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:57:16,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:57:16,958 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:57:16,958 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:57:16,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:57:16,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-13 00:57:16,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:57:16,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:57:16,979 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:57:16,979 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:57:16,993 INFO L791 eck$LassoCheckResult]: Stem: 59#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 47#L-1true havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~5, main_~tmp~6;havoc main_~retValue_acc~5;havoc main_~tmp~6; 45#L882true 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; 57#L890true main_#t~ret67 := valid_product_#res;main_~tmp~6 := main_#t~ret67;havoc main_#t~ret67; 11#L766true assume 0 != main_~tmp~6; 3#L739true ~switchedOnBeforeTS~0 := 0; 42#L51true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 5#L72-1true [2021-10-13 00:57:16,994 INFO L793 eck$LassoCheckResult]: Loop: 5#L72-1true assume !false; 22#L251true assume test_~splverifierCounter~0 < 4; 58#L252true test_~tmp~2 := test_#t~nondet28;havoc test_#t~nondet28; 73#L260true assume !(0 != test_~tmp~2); 18#L260-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 13#L270true assume !(0 != test_~tmp___0~1); 21#L270-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 35#L280true assume 0 != test_~tmp___2~0; 15#L286-2true havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 69#L196true __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 9#L61true assume !(0 != ~pumpRunning~0); 31#L111true assume !(0 != ~systemActive~0); 33#L118true havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 20#L855true __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 70#L72true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 5#L72-1true [2021-10-13 00:57:17,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:17,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:57:17,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:17,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832526155] [2021-10-13 00:57:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:17,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:17,385 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:17,640 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:57:17,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:17,659 INFO L82 PathProgramCache]: Analyzing trace with hash 93981420, now seen corresponding path program 1 times [2021-10-13 00:57:17,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:17,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670465852] [2021-10-13 00:57:17,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:17,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:17,673 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:17,694 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:57:17,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:17,700 INFO L82 PathProgramCache]: Analyzing trace with hash 2028006630, now seen corresponding path program 1 times [2021-10-13 00:57:17,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:17,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079191969] [2021-10-13 00:57:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:17,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:57:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:57:17,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:57:17,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079191969] [2021-10-13 00:57:17,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079191969] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:57:17,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:57:17,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:57:17,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522718981] [2021-10-13 00:57:18,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:57:18,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:57:18,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:57:18,132 INFO L87 Difference]: Start difference. First operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 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 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:57:18,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:57:18,360 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2021-10-13 00:57:18,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:57:18,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 100 transitions. [2021-10-13 00:57:18,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 00:57:18,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2021-10-13 00:57:18,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-13 00:57:18,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-13 00:57:18,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2021-10-13 00:57:18,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:57:18,379 INFO L681 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-13 00:57:18,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2021-10-13 00:57:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-13 00:57:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.3676470588235294) internal successors, (93), 67 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:57:18,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2021-10-13 00:57:18,434 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-13 00:57:18,435 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-13 00:57:18,436 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:57:18,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2021-10-13 00:57:18,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 00:57:18,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:57:18,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:57:18,442 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:57:18,442 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:57:18,443 INFO L791 eck$LassoCheckResult]: Stem: 232#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 223#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~5, main_~tmp~6;havoc main_~retValue_acc~5;havoc main_~tmp~6; 221#L882 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; 222#L890 main_#t~ret67 := valid_product_#res;main_~tmp~6 := main_#t~ret67;havoc main_#t~ret67; 183#L766 assume 0 != main_~tmp~6; 168#L739 ~switchedOnBeforeTS~0 := 0; 169#L51 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 170#L72-1 [2021-10-13 00:57:18,444 INFO L793 eck$LassoCheckResult]: Loop: 170#L72-1 assume !false; 171#L251 assume test_~splverifierCounter~0 < 4; 200#L252 test_~tmp~2 := test_#t~nondet28;havoc test_#t~nondet28; 231#L260 assume !(0 != test_~tmp~2); 197#L260-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 188#L270 assume !(0 != test_~tmp___0~1); 178#L270-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 199#L280 assume 0 != test_~tmp___2~0; 189#L286-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 190#L196 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 179#L61 assume !(0 != ~pumpRunning~0); 180#L111 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 210#L143 assume !(0 != ~pumpRunning~0); 211#L118 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 195#L855 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 196#L72 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 170#L72-1 [2021-10-13 00:57:18,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:18,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:57:18,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:18,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213859996] [2021-10-13 00:57:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:18,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:18,543 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:18,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:57:18,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:18,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1402071741, now seen corresponding path program 1 times [2021-10-13 00:57:18,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:18,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668623049] [2021-10-13 00:57:18,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:18,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:18,677 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:18,685 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:57:18,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:18,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1576832375, now seen corresponding path program 1 times [2021-10-13 00:57:18,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:18,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562933320] [2021-10-13 00:57:18,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:18,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:57:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:57:18,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:57:18,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562933320] [2021-10-13 00:57:18,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562933320] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:57:18,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:57:18,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:57:18,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250185519] [2021-10-13 00:57:18,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:57:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:57:18,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:57:18,963 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:57:19,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:57:19,142 INFO L93 Difference]: Finished difference Result 182 states and 252 transitions. [2021-10-13 00:57:19,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:57:19,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 252 transitions. [2021-10-13 00:57:19,156 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2021-10-13 00:57:19,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 252 transitions. [2021-10-13 00:57:19,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 182 [2021-10-13 00:57:19,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2021-10-13 00:57:19,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 252 transitions. [2021-10-13 00:57:19,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:57:19,166 INFO L681 BuchiCegarLoop]: Abstraction has 182 states and 252 transitions. [2021-10-13 00:57:19,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 252 transitions. [2021-10-13 00:57:19,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 129. [2021-10-13 00:57:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.3565891472868217) internal successors, (175), 128 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:57:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 175 transitions. [2021-10-13 00:57:19,177 INFO L704 BuchiCegarLoop]: Abstraction has 129 states and 175 transitions. [2021-10-13 00:57:19,177 INFO L587 BuchiCegarLoop]: Abstraction has 129 states and 175 transitions. [2021-10-13 00:57:19,178 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:57:19,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 175 transitions. [2021-10-13 00:57:19,179 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2021-10-13 00:57:19,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:57:19,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:57:19,180 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:57:19,180 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:57:19,181 INFO L791 eck$LassoCheckResult]: Stem: 503#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 490#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~5, main_~tmp~6;havoc main_~retValue_acc~5;havoc main_~tmp~6; 488#L882 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; 489#L890 main_#t~ret67 := valid_product_#res;main_~tmp~6 := main_#t~ret67;havoc main_#t~ret67; 449#L766 assume 0 != main_~tmp~6; 434#L739 ~switchedOnBeforeTS~0 := 0; 435#L51 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 436#L72-1 [2021-10-13 00:57:19,181 INFO L793 eck$LassoCheckResult]: Loop: 436#L72-1 assume !false; 437#L251 assume test_~splverifierCounter~0 < 4; 467#L252 test_~tmp~2 := test_#t~nondet28;havoc test_#t~nondet28; 502#L260 assume !(0 != test_~tmp~2); 461#L260-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 452#L270 assume !(0 != test_~tmp___0~1); 441#L270-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 466#L280 assume 0 != test_~tmp___2~0; 454#L286-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 455#L196 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 445#L61 assume !(0 != ~pumpRunning~0); 446#L111 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 477#L143 assume !(0 != ~pumpRunning~0); 479#L118 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 464#L855 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 465#L72 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 510#L196-1 __utac_acc__Specification5_spec__3_#t~ret9 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 513#L76 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 436#L72-1 [2021-10-13 00:57:19,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:19,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 00:57:19,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:19,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837979656] [2021-10-13 00:57:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:19,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:19,237 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:19,290 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:57:19,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:19,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1228773470, now seen corresponding path program 1 times [2021-10-13 00:57:19,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:19,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35222243] [2021-10-13 00:57:19,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:19,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:19,297 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:19,305 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:57:19,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:57:19,306 INFO L82 PathProgramCache]: Analyzing trace with hash 787528740, now seen corresponding path program 1 times [2021-10-13 00:57:19,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:57:19,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420854412] [2021-10-13 00:57:19,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:57:19,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:57:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:19,354 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:57:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:57:19,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:58:28,974 WARN L207 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:59:43,201 WARN L207 SmtUtils]: Spent 36.20 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:59:43,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:59:43 BoogieIcfgContainer [2021-10-13 00:59:43,382 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:59:43,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:59:43,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:59:43,383 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:59:43,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:16" (3/4) ... [2021-10-13 00:59:43,387 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:59:43,451 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:59:43,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:59:43,460 INFO L168 Benchmark]: Toolchain (without parser) took 148526.40 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 76.5 MB in the beginning and 114.2 MB in the end (delta: -37.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:43,462 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:59:43,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.87 ms. Allocated memory is still 107.0 MB. Free memory was 76.3 MB in the beginning and 74.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:43,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.41 ms. Allocated memory is still 107.0 MB. Free memory was 73.6 MB in the beginning and 70.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:43,470 INFO L168 Benchmark]: Boogie Preprocessor took 71.60 ms. Allocated memory is still 107.0 MB. Free memory was 70.9 MB in the beginning and 68.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:43,472 INFO L168 Benchmark]: RCFGBuilder took 1063.00 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 68.6 MB in the beginning and 86.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:43,473 INFO L168 Benchmark]: BuchiAutomizer took 146590.40 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 85.8 MB in the beginning and 116.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 83.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:43,473 INFO L168 Benchmark]: Witness Printer took 76.33 ms. Allocated memory is still 157.3 MB. Free memory was 116.2 MB in the beginning and 114.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:43,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 598.87 ms. Allocated memory is still 107.0 MB. Free memory was 76.3 MB in the beginning and 74.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.41 ms. Allocated memory is still 107.0 MB. Free memory was 73.6 MB in the beginning and 70.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.60 ms. Allocated memory is still 107.0 MB. Free memory was 70.9 MB in the beginning and 68.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1063.00 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 68.6 MB in the beginning and 86.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 146590.40 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 85.8 MB in the beginning and 116.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 83.8 MB. Max. memory is 16.1 GB. * Witness Printer took 76.33 ms. Allocated memory is still 157.3 MB. Free memory was 116.2 MB in the beginning and 114.2 MB in the end (delta: 2.0 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 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 146.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 145.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 47.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 53 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 210 SDtfs, 557 SDslu, 270 SDs, 0 SdLazy, 73 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 228.8ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 250]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22810} State at position 1 is {NULL=31208, NULL=0, NULL=0, NULL=0, NULL=31194, NULL=0, NULL=22810, NULL=22813, retValue_acc=0, NULL=0, NULL=0, NULL=22811, NULL=31189, NULL=31186, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@136512b2=0, tmp=0, NULL=0, tmp___1=0, tmp=1, NULL=31204, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b57312d=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=31192, NULL=31199, \result=0, NULL=31188, NULL=22812, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=31193, \result=1, NULL=0, NULL=0, NULL=0, NULL=31197, NULL=0, NULL=0, NULL=31207, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d6a362e=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=31187, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@917e436=0, NULL=31196, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@642b3f2f=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29732471=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@485e61a7=54, retValue_acc=1, NULL=31203, NULL=0, NULL=0, NULL=31185, NULL=0, NULL=31209, retValue_acc=1, tmp___2=54, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=31191, NULL=31206, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34bb94f5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36a27376=0, NULL=31195, tmp=0, head=0, retValue_acc=0, NULL=31200, NULL=31198, NULL=0, NULL=31190, NULL=31205, NULL=31201, NULL=31202} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L45] int switchedOnBeforeTS ; [L101] int pumpRunning = 0; [L102] int systemActive = 1; [L474] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L680] int cleanupTimeShifts = 4; [L780] int waterLevel = 1; [L781] int methaneLevelCritical = 0; [L757] int retValue_acc ; [L758] int tmp ; [L886] int retValue_acc ; [L889] retValue_acc = 1 [L890] return (retValue_acc); [L764] tmp = valid_product() [L766] COND TRUE \read(tmp) [L50] switchedOnBeforeTS = 0 [L241] int splverifierCounter ; [L242] int tmp ; [L243] int tmp___0 ; [L244] int tmp___1 ; [L245] int tmp___2 ; [L248] splverifierCounter = 0 Loop: [L250] COND TRUE 1 [L252] COND TRUE splverifierCounter < 4 [L258] tmp = __VERIFIER_nondet_int() [L260] COND FALSE !(\read(tmp)) [L268] tmp___0 = __VERIFIER_nondet_int() [L270] COND FALSE !(\read(tmp___0)) [L278] tmp___2 = __VERIFIER_nondet_int() [L280] COND TRUE \read(tmp___2) [L192] int retValue_acc ; [L195] retValue_acc = pumpRunning [L196] return (retValue_acc); [L59] switchedOnBeforeTS = isPumpRunning() [L111] COND FALSE !(\read(pumpRunning)) [L118] COND TRUE \read(systemActive) [L140] int tmp ; [L143] COND FALSE !(\read(pumpRunning)) [L65] int tmp ; [L66] int tmp___0 ; [L851] int retValue_acc ; [L854] retValue_acc = waterLevel [L855] return (retValue_acc); [L70] tmp = getWaterLevel() [L72] COND TRUE tmp != 2 [L192] int retValue_acc ; [L195] retValue_acc = pumpRunning [L196] return (retValue_acc); [L74] tmp___0 = isPumpRunning() [L76] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:59:43,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b38e59-4527-4bf7-98ff-cf9f6087593c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...