./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product32.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_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/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_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/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_adf89172-92bc-46ab-8e10-4c2bfce98779/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 41828788c86d3b4773495bb168c9dac21937a6b5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:04:02,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:04:02,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:04:02,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:04:02,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:04:02,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:04:02,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:04:02,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:04:02,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:04:02,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:04:02,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:04:02,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:04:02,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:04:02,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:04:02,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:04:02,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:04:02,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:04:02,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:04:02,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:04:02,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:04:02,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:04:02,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:04:02,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:04:02,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:04:02,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:04:02,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:04:02,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:04:02,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:04:02,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:04:02,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:04:02,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:04:02,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:04:02,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:04:02,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:04:02,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:04:02,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:04:02,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:04:02,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:04:02,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:04:02,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:04:02,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:04:02,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:04:02,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:04:02,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:04:02,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:04:02,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:04:02,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:04:02,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:04:02,658 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:04:02,658 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:04:02,658 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:04:02,659 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:04:02,660 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:04:02,660 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:04:02,660 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:04:02,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:04:02,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:04:02,661 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:04:02,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:04:02,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:04:02,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:04:02,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:04:02,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:04:02,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:04:02,663 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:04:02,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:04:02,664 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:04:02,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:04:02,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:04:02,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:04:02,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:04:02,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:04:02,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:04:02,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:04:02,668 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:04:02,668 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_adf89172-92bc-46ab-8e10-4c2bfce98779/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41828788c86d3b4773495bb168c9dac21937a6b5 [2021-10-13 01:04:02,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:04:02,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:04:02,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:04:02,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:04:02,968 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:04:02,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-10-13 01:04:03,038 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/data/1198f235d/536074dd23f54594a828dfcf565d9f27/FLAG7e56ceba0 [2021-10-13 01:04:03,556 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:04:03,556 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-10-13 01:04:03,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/data/1198f235d/536074dd23f54594a828dfcf565d9f27/FLAG7e56ceba0 [2021-10-13 01:04:03,847 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/data/1198f235d/536074dd23f54594a828dfcf565d9f27 [2021-10-13 01:04:03,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:04:03,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:04:03,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:04:03,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:04:03,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:04:03,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:04:03" (1/1) ... [2021-10-13 01:04:03,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462db201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:03, skipping insertion in model container [2021-10-13 01:04:03,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:04:03" (1/1) ... [2021-10-13 01:04:03,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:04:03,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:04:04,179 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_adf89172-92bc-46ab-8e10-4c2bfce98779/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c[14950,14963] [2021-10-13 01:04:04,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:04:04,207 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:04:04,308 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_adf89172-92bc-46ab-8e10-4c2bfce98779/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c[14950,14963] [2021-10-13 01:04:04,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:04:04,350 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:04:04,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04 WrapperNode [2021-10-13 01:04:04,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:04:04,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:04:04,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:04:04,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:04:04,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:04:04,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:04:04,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:04:04,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:04:04,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:04:04,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:04:04,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:04:04,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:04:04,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (1/1) ... [2021-10-13 01:04:04,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:04:04,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:04:04,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:04:04,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:04:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:04:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:04:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:04:04,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:04:05,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:04:05,560 INFO L299 CfgBuilder]: Removed 168 assume(true) statements. [2021-10-13 01:04:05,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:04:05 BoogieIcfgContainer [2021-10-13 01:04:05,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:04:05,563 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:04:05,563 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:04:05,566 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:04:05,567 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:04:05,568 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:04:03" (1/3) ... [2021-10-13 01:04:05,569 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cf9f8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:04:05, skipping insertion in model container [2021-10-13 01:04:05,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:04:05,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:04" (2/3) ... [2021-10-13 01:04:05,570 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cf9f8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:04:05, skipping insertion in model container [2021-10-13 01:04:05,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:04:05,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:04:05" (3/3) ... [2021-10-13 01:04:05,571 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2021-10-13 01:04:05,612 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:04:05,612 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:04:05,612 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:04:05,612 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:04:05,613 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:04:05,613 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:04:05,613 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:04:05,613 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:04:05,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 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 01:04:05,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-13 01:04:05,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:04:05,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:04:05,678 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:04:05,678 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:04:05,678 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:04:05,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 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 01:04:05,686 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-13 01:04:05,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:04:05,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:04:05,687 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:04:05,687 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:04:05,692 INFO L791 eck$LassoCheckResult]: Stem: 101#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 36#L-1true havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 17#L875true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 34#L883true main_#t~ret67 := valid_product_#res;main_~tmp~8 := main_#t~ret67;havoc main_#t~ret67; 13#L804true assume 0 != main_~tmp~8; 18#L778true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 52#L834-1true [2021-10-13 01:04:05,693 INFO L793 eck$LassoCheckResult]: Loop: 52#L834-1true assume !false; 89#L425true assume test_~splverifierCounter~0 < 4; 95#L426true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 22#L434true assume !(0 != test_~tmp~3); 102#L434-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 81#L444true assume !(0 != test_~tmp___0~0); 8#L444-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 7#L454true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 100#L462-1true assume !(0 != ~pumpRunning~0); 41#L499true assume !(0 != ~systemActive~0); 96#L506true havoc __utac_acc__Specification3_spec__1_#t~ret68, __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 105#L931-1true __utac_acc__Specification3_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret68;havoc __utac_acc__Specification3_spec__1_#t~ret68; 106#L828true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 52#L834-1true [2021-10-13 01:04:05,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:04:05,700 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 01:04:05,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:04:05,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509201098] [2021-10-13 01:04:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:04:05,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:04:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:05,979 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:04:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:06,177 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:04:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:04:06,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1670755457, now seen corresponding path program 1 times [2021-10-13 01:04:06,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:04:06,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307270837] [2021-10-13 01:04:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:04:06,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:04:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:04:06,275 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 01:04:06,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:04:06,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307270837] [2021-10-13 01:04:06,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307270837] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:04:06,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:04:06,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:04:06,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275341803] [2021-10-13 01:04:06,284 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:04:06,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:04:06,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:04:06,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:04:06,304 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:04:06,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:04:06,393 INFO L93 Difference]: Finished difference Result 214 states and 306 transitions. [2021-10-13 01:04:06,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:04:06,396 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 306 transitions. [2021-10-13 01:04:06,408 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 138 [2021-10-13 01:04:06,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 200 states and 291 transitions. [2021-10-13 01:04:06,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2021-10-13 01:04:06,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2021-10-13 01:04:06,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 291 transitions. [2021-10-13 01:04:06,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:04:06,421 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 291 transitions. [2021-10-13 01:04:06,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 291 transitions. [2021-10-13 01:04:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2021-10-13 01:04:06,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 198 states have (on average 1.4545454545454546) internal successors, (288), 197 states have internal predecessors, (288), 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 01:04:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 288 transitions. [2021-10-13 01:04:06,459 INFO L704 BuchiCegarLoop]: Abstraction has 198 states and 288 transitions. [2021-10-13 01:04:06,459 INFO L587 BuchiCegarLoop]: Abstraction has 198 states and 288 transitions. [2021-10-13 01:04:06,460 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:04:06,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 288 transitions. [2021-10-13 01:04:06,462 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 136 [2021-10-13 01:04:06,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:04:06,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:04:06,463 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:04:06,463 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:04:06,463 INFO L791 eck$LassoCheckResult]: Stem: 443#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 388#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 357#L875 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 358#L883 main_#t~ret67 := valid_product_#res;main_~tmp~8 := main_#t~ret67;havoc main_#t~ret67; 350#L804 assume 0 != main_~tmp~8; 351#L778 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 359#L834-1 [2021-10-13 01:04:06,464 INFO L793 eck$LassoCheckResult]: Loop: 359#L834-1 assume !false; 483#L425 assume test_~splverifierCounter~0 < 4; 481#L426 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 365#L434 assume !(0 != test_~tmp~3); 367#L434-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 457#L444 assume !(0 != test_~tmp___0~0); 455#L444-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 454#L454 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 341#L462-1 assume !(0 != ~pumpRunning~0); 377#L499 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 393#L557 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret46, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 354#L531-1 assume !(0 != ~pumpRunning~0); 355#L506 havoc __utac_acc__Specification3_spec__1_#t~ret68, __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 442#L931-1 __utac_acc__Specification3_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret68;havoc __utac_acc__Specification3_spec__1_#t~ret68; 446#L828 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 359#L834-1 [2021-10-13 01:04:06,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:04:06,464 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 01:04:06,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:04:06,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125708885] [2021-10-13 01:04:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:04:06,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:04:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:06,514 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:04:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:06,572 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:04:06,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:04:06,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1427585839, now seen corresponding path program 1 times [2021-10-13 01:04:06,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:04:06,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007351798] [2021-10-13 01:04:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:04:06,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:04:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:06,579 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:04:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:06,586 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:04:06,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:04:06,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1021999211, now seen corresponding path program 1 times [2021-10-13 01:04:06,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:04:06,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556668710] [2021-10-13 01:04:06,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:04:06,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:04:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:04:06,647 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 01:04:06,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:04:06,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556668710] [2021-10-13 01:04:06,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556668710] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:04:06,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:04:06,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:04:06,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046746527] [2021-10-13 01:04:06,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:04:06,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:04:06,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:04:06,832 INFO L87 Difference]: Start difference. First operand 198 states and 288 transitions. cyclomatic complexity: 93 Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:04:07,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:04:07,001 INFO L93 Difference]: Finished difference Result 686 states and 1012 transitions. [2021-10-13 01:04:07,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:04:07,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 686 states and 1012 transitions. [2021-10-13 01:04:07,013 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 494 [2021-10-13 01:04:07,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 686 states to 686 states and 1012 transitions. [2021-10-13 01:04:07,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 686 [2021-10-13 01:04:07,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 686 [2021-10-13 01:04:07,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 686 states and 1012 transitions. [2021-10-13 01:04:07,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:04:07,042 INFO L681 BuchiCegarLoop]: Abstraction has 686 states and 1012 transitions. [2021-10-13 01:04:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states and 1012 transitions. [2021-10-13 01:04:07,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 390. [2021-10-13 01:04:07,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 390 states have (on average 1.441025641025641) internal successors, (562), 389 states have internal predecessors, (562), 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 01:04:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 562 transitions. [2021-10-13 01:04:07,079 INFO L704 BuchiCegarLoop]: Abstraction has 390 states and 562 transitions. [2021-10-13 01:04:07,079 INFO L587 BuchiCegarLoop]: Abstraction has 390 states and 562 transitions. [2021-10-13 01:04:07,079 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:04:07,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 390 states and 562 transitions. [2021-10-13 01:04:07,082 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 272 [2021-10-13 01:04:07,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:04:07,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:04:07,083 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:04:07,083 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:04:07,083 INFO L791 eck$LassoCheckResult]: Stem: 1354#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1291#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 1260#L875 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1261#L883 main_#t~ret67 := valid_product_#res;main_~tmp~8 := main_#t~ret67;havoc main_#t~ret67; 1252#L804 assume 0 != main_~tmp~8; 1253#L778 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1262#L834-1 [2021-10-13 01:04:07,084 INFO L793 eck$LassoCheckResult]: Loop: 1262#L834-1 assume !false; 1309#L425 assume test_~splverifierCounter~0 < 4; 1346#L426 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 1267#L434 assume !(0 != test_~tmp~3); 1269#L434-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 1337#L444 assume !(0 != test_~tmp___0~0); 1245#L444-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 1242#L454 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1243#L462-1 assume !(0 != ~pumpRunning~0); 1279#L499 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1295#L557 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret46, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1256#L531-1 assume !(0 != ~pumpRunning~0); 1257#L506 havoc __utac_acc__Specification3_spec__1_#t~ret68, __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1349#L931-1 __utac_acc__Specification3_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret68;havoc __utac_acc__Specification3_spec__1_#t~ret68; 1358#L828 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1359#L963 __utac_acc__Specification3_spec__1_#t~ret69 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 1352#L834 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1262#L834-1 [2021-10-13 01:04:07,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:04:07,084 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 01:04:07,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:04:07,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306909831] [2021-10-13 01:04:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:04:07,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:04:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:07,127 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:04:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:07,179 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:04:07,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:04:07,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1815416189, now seen corresponding path program 1 times [2021-10-13 01:04:07,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:04:07,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350442048] [2021-10-13 01:04:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:04:07,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:04:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:07,185 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:04:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:07,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:04:07,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:04:07,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1406261347, now seen corresponding path program 1 times [2021-10-13 01:04:07,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:04:07,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920928975] [2021-10-13 01:04:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:04:07,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:04:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:07,245 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:04:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:04:07,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:05:05,777 WARN L207 SmtUtils]: Spent 58.31 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 01:06:13,018 WARN L207 SmtUtils]: Spent 30.98 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 01:06:13,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:06:13 BoogieIcfgContainer [2021-10-13 01:06:13,131 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:06:13,132 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:06:13,132 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:06:13,133 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:06:13,133 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:04:05" (3/4) ... [2021-10-13 01:06:13,136 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:06:13,212 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:06:13,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:06:13,215 INFO L168 Benchmark]: Toolchain (without parser) took 129363.67 ms. Allocated memory was 140.5 MB in the beginning and 192.9 MB in the end (delta: 52.4 MB). Free memory was 99.0 MB in the beginning and 136.3 MB in the end (delta: -37.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:13,216 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory is still 116.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:06:13,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.53 ms. Allocated memory is still 140.5 MB. Free memory was 98.7 MB in the beginning and 106.5 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:13,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.19 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 102.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:13,219 INFO L168 Benchmark]: Boogie Preprocessor took 76.59 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 100.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:13,219 INFO L168 Benchmark]: RCFGBuilder took 1049.51 ms. Allocated memory is still 140.5 MB. Free memory was 100.2 MB in the beginning and 58.3 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:13,219 INFO L168 Benchmark]: BuchiAutomizer took 127568.62 ms. Allocated memory was 140.5 MB in the beginning and 192.9 MB in the end (delta: 52.4 MB). Free memory was 57.6 MB in the beginning and 139.5 MB in the end (delta: -81.8 MB). Peak memory consumption was 70.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:13,220 INFO L168 Benchmark]: Witness Printer took 81.77 ms. Allocated memory is still 192.9 MB. Free memory was 139.5 MB in the beginning and 136.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:13,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory is still 116.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.53 ms. Allocated memory is still 140.5 MB. Free memory was 98.7 MB in the beginning and 106.5 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.19 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 102.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.59 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 100.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1049.51 ms. Allocated memory is still 140.5 MB. Free memory was 100.2 MB in the beginning and 58.3 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 127568.62 ms. Allocated memory was 140.5 MB in the beginning and 192.9 MB in the end (delta: 52.4 MB). Free memory was 57.6 MB in the beginning and 139.5 MB in the end (delta: -81.8 MB). Peak memory consumption was 70.0 MB. Max. memory is 16.1 GB. * Witness Printer took 81.77 ms. Allocated memory is still 192.9 MB. Free memory was 139.5 MB in the beginning and 136.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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 5 locations. The remainder module has 390 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 127.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 126.9s. Construction of modules took 0.1s. 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 60.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 298 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 390 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 368 SDtfs, 719 SDslu, 781 SDs, 0 SdLazy, 89 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101.3ms 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: 424]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22987} State at position 1 is {NULL=0, NULL=23005, NULL=0, retValue_acc=1, NULL=22987, retValue_acc=0, NULL=0, NULL=23009, NULL=23001, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@574640fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ee74732=69, NULL=22995, NULL=0, methaneLevelCritical=0, NULL=22998, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@642448b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25597690=0, tmp___1=0, NULL=22989, NULL=0, NULL=0, NULL=23003, NULL=22997, NULL=22999, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d29c517=0, cleanupTimeShifts=4, NULL=22988, NULL=23010, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@866b7e=0, tmp=0, NULL=23002, tmp___0=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7df6d808=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4673fbfa=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d802069=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=23015, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@280b0fae=0, \result=1, head=0, pumpRunning=0, NULL=23008, \result=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=22991, NULL=23007, NULL=0, retValue_acc=1, NULL=0, NULL=23011, NULL=22992, NULL=0, NULL=23013, tmp___2=69, NULL=0, NULL=22990, NULL=23012, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=22996, NULL=23004, NULL=23006, NULL=22994, tmp___1=0, head=0, NULL=0, NULL=0, tmp=0, NULL=23014, NULL=0, NULL=0, NULL=22993, NULL=23000, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L795] int retValue_acc ; [L796] int tmp ; [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 Loop: [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND FALSE !(\read(tmp)) [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L705] systemActive = 1 [L499] COND FALSE !(\read(pumpRunning)) [L506] COND TRUE \read(systemActive) [L554] int tmp ; [L557] COND FALSE !(\read(pumpRunning)) [L528] int tmp ; [L531] COND FALSE !(\read(pumpRunning)) [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); [L832] tmp___0 = getWaterLevel() [L834] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:06:13,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf89172-92bc-46ab-8e10-4c2bfce98779/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...