./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.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_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/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_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/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_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/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 808e109e6e5bbd4457b727764ccf6e4076a38ae9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:06:55,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:06:55,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:06:55,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:06:55,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:06:55,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:06:55,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:06:55,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:06:55,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:06:55,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:06:55,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:06:55,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:06:55,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:06:55,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:06:55,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:06:55,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:06:55,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:06:55,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:06:55,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:06:55,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:06:55,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:06:55,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:06:55,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:06:55,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:06:55,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:06:55,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:06:55,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:06:55,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:06:55,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:06:55,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:06:55,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:06:55,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:06:55,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:06:55,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:06:55,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:06:55,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:06:55,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:06:55,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:06:55,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:06:55,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:06:55,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:06:55,462 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:06:55,524 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:06:55,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:06:55,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:06:55,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:06:55,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:06:55,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:06:55,537 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:06:55,538 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:06:55,538 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:06:55,539 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:06:55,539 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:06:55,539 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:06:55,540 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:06:55,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:06:55,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:06:55,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:06:55,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:06:55,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:06:55,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:06:55,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:06:55,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:06:55,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:06:55,545 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:06:55,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:06:55,546 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:06:55,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:06:55,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:06:55,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:06:55,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:06:55,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:06:55,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:06:55,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:06:55,549 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:06:55,549 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_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 808e109e6e5bbd4457b727764ccf6e4076a38ae9 [2021-10-13 01:06:55,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:06:56,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:06:56,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:06:56,013 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:06:56,015 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:06:56,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2021-10-13 01:06:56,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/data/f64c34277/ff3a180f4cf04575b145d417b8961612/FLAG1465d2f75 [2021-10-13 01:06:56,748 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:06:56,753 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2021-10-13 01:06:56,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/data/f64c34277/ff3a180f4cf04575b145d417b8961612/FLAG1465d2f75 [2021-10-13 01:06:56,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/data/f64c34277/ff3a180f4cf04575b145d417b8961612 [2021-10-13 01:06:57,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:06:57,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:06:57,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:06:57,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:06:57,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:06:57,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f1c4b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57, skipping insertion in model container [2021-10-13 01:06:57,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:06:57,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:06:57,369 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_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3612,3625] [2021-10-13 01:06:57,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:06:57,486 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:06:57,512 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_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3612,3625] [2021-10-13 01:06:57,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:06:57,637 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:06:57,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57 WrapperNode [2021-10-13 01:06:57,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:06:57,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:06:57,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:06:57,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:06:57,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:06:57,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:06:57,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:06:57,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:06:57,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:06:57,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:06:57,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:06:57,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:06:57,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (1/1) ... [2021-10-13 01:06:57,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:57,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:57,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:57,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:06:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:06:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:06:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:06:57,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:06:58,963 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:06:58,963 INFO L299 CfgBuilder]: Removed 168 assume(true) statements. [2021-10-13 01:06:58,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:06:58 BoogieIcfgContainer [2021-10-13 01:06:58,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:06:58,967 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:06:58,967 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:06:58,971 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:06:58,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:06:58,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:06:57" (1/3) ... [2021-10-13 01:06:58,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64955bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:06:58, skipping insertion in model container [2021-10-13 01:06:58,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:06:58,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:57" (2/3) ... [2021-10-13 01:06:58,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64955bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:06:58, skipping insertion in model container [2021-10-13 01:06:58,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:06:58,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:06:58" (3/3) ... [2021-10-13 01:06:58,977 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2021-10-13 01:06:59,030 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:06:59,030 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:06:59,030 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:06:59,031 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:06:59,031 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:06:59,031 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:06:59,031 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:06:59,031 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:06:59,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 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 01:06:59,085 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-13 01:06:59,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:59,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:59,095 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:06:59,095 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:59,095 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:06:59,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 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 01:06:59,105 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-13 01:06:59,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:59,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:59,107 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:06:59,107 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:59,113 INFO L791 eck$LassoCheckResult]: Stem: 103#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(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(77, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(101, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(116, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(104, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string17.base, #t~string17.offset, 1);call write~init~int(82, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(73, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(84, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 4 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(75, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 38#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 7#L168true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 42#L176true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 108#L132true assume 0 != main_~tmp~0; 21#L105true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 22#L200-1true [2021-10-13 01:06:59,114 INFO L793 eck$LassoCheckResult]: Loop: 22#L200-1true assume !false; 64#L541true assume test_~splverifierCounter~0 < 4; 11#L542true test_~tmp~5 := test_#t~nondet42;havoc test_#t~nondet42; 115#L550true assume !(0 != test_~tmp~5); 49#L550-1true test_~tmp___0~2 := test_#t~nondet43;havoc test_#t~nondet43; 23#L560true assume !(0 != test_~tmp___0~2); 86#L560-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 36#L570true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 47#L578-1true assume !(0 != ~pumpRunning~0); 61#L336true assume !(0 != ~systemActive~0); 74#L343true havoc __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 62#L274-1true __utac_acc__Specification3_spec__1_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret9;havoc __utac_acc__Specification3_spec__1_#t~ret9; 80#L194true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 22#L200-1true [2021-10-13 01:06:59,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:59,121 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 01:06:59,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:59,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780783259] [2021-10-13 01:06:59,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:59,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:59,410 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:59,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:59,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:59,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1670447617, now seen corresponding path program 1 times [2021-10-13 01:06:59,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:59,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745164305] [2021-10-13 01:06:59,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:59,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:59,704 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 01:06:59,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:06:59,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745164305] [2021-10-13 01:06:59,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745164305] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:06:59,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:06:59,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:06:59,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511604174] [2021-10-13 01:06:59,715 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:06:59,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:06:59,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:06:59,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:06:59,743 INFO L87 Difference]: Start difference. First operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 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 01:06:59,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:06:59,851 INFO L93 Difference]: Finished difference Result 226 states and 330 transitions. [2021-10-13 01:06:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:06:59,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 330 transitions. [2021-10-13 01:06:59,871 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2021-10-13 01:06:59,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 212 states and 315 transitions. [2021-10-13 01:06:59,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2021-10-13 01:06:59,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2021-10-13 01:06:59,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 212 states and 315 transitions. [2021-10-13 01:06:59,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:06:59,891 INFO L681 BuchiCegarLoop]: Abstraction has 212 states and 315 transitions. [2021-10-13 01:06:59,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states and 315 transitions. [2021-10-13 01:06:59,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2021-10-13 01:06:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 210 states have (on average 1.4857142857142858) internal successors, (312), 209 states have internal predecessors, (312), 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 01:06:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 312 transitions. [2021-10-13 01:06:59,965 INFO L704 BuchiCegarLoop]: Abstraction has 210 states and 312 transitions. [2021-10-13 01:06:59,965 INFO L587 BuchiCegarLoop]: Abstraction has 210 states and 312 transitions. [2021-10-13 01:06:59,965 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:06:59,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 210 states and 312 transitions. [2021-10-13 01:06:59,969 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2021-10-13 01:06:59,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:59,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:59,971 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:06:59,972 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:59,972 INFO L791 eck$LassoCheckResult]: Stem: 467#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(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(77, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(101, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(116, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(104, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string17.base, #t~string17.offset, 1);call write~init~int(82, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(73, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(84, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 4 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(75, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 413#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 355#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 356#L176 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 416#L132 assume 0 != main_~tmp~0; 383#L105 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 384#L200-1 [2021-10-13 01:06:59,973 INFO L793 eck$LassoCheckResult]: Loop: 384#L200-1 assume !false; 385#L541 assume test_~splverifierCounter~0 < 4; 362#L542 test_~tmp~5 := test_#t~nondet42;havoc test_#t~nondet42; 363#L550 assume !(0 != test_~tmp~5); 361#L550-1 test_~tmp___0~2 := test_#t~nondet43;havoc test_#t~nondet43; 386#L560 assume !(0 != test_~tmp___0~2); 387#L560-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 408#L570 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 409#L578-1 assume !(0 != ~pumpRunning~0); 421#L336 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret23, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 376#L394 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret22, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 378#L368-1 assume !(0 == ~pumpRunning~0); 375#L343 havoc __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 436#L274-1 __utac_acc__Specification3_spec__1_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret9;havoc __utac_acc__Specification3_spec__1_#t~ret9; 437#L194 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 384#L200-1 [2021-10-13 01:06:59,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:59,987 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 01:06:59,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:59,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447146257] [2021-10-13 01:06:59,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:59,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:07:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:00,105 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:07:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:00,222 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:07:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:07:00,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1422660394, now seen corresponding path program 1 times [2021-10-13 01:07:00,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:07:00,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244651866] [2021-10-13 01:07:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:07:00,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:07:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:07:00,246 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 01:07:00,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:07:00,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244651866] [2021-10-13 01:07:00,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244651866] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:07:00,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:07:00,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:07:00,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807253167] [2021-10-13 01:07:00,248 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:07:00,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:07:00,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:07:00,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:07:00,250 INFO L87 Difference]: Start difference. First operand 210 states and 312 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:07:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:07:00,399 INFO L93 Difference]: Finished difference Result 305 states and 430 transitions. [2021-10-13 01:07:00,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:07:00,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 305 states and 430 transitions. [2021-10-13 01:07:00,404 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2021-10-13 01:07:00,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 305 states to 305 states and 430 transitions. [2021-10-13 01:07:00,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 305 [2021-10-13 01:07:00,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 305 [2021-10-13 01:07:00,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 305 states and 430 transitions. [2021-10-13 01:07:00,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:07:00,414 INFO L681 BuchiCegarLoop]: Abstraction has 305 states and 430 transitions. [2021-10-13 01:07:00,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states and 430 transitions. [2021-10-13 01:07:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2021-10-13 01:07:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 305 states have (on average 1.4098360655737705) internal successors, (430), 304 states have internal predecessors, (430), 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 01:07:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 430 transitions. [2021-10-13 01:07:00,452 INFO L704 BuchiCegarLoop]: Abstraction has 305 states and 430 transitions. [2021-10-13 01:07:00,453 INFO L587 BuchiCegarLoop]: Abstraction has 305 states and 430 transitions. [2021-10-13 01:07:00,453 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:07:00,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 305 states and 430 transitions. [2021-10-13 01:07:00,460 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2021-10-13 01:07:00,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:07:00,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:07:00,463 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:07:00,464 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:07:00,464 INFO L791 eck$LassoCheckResult]: Stem: 994#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(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(77, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(101, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(116, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(104, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string17.base, #t~string17.offset, 1);call write~init~int(82, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(73, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(84, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 4 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(75, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 936#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 876#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 877#L176 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 942#L132 assume 0 != main_~tmp~0; 904#L105 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 905#L200-1 [2021-10-13 01:07:00,465 INFO L793 eck$LassoCheckResult]: Loop: 905#L200-1 assume !false; 1074#L541 assume test_~splverifierCounter~0 < 4; 1073#L542 test_~tmp~5 := test_#t~nondet42;havoc test_#t~nondet42; 1072#L550 assume !(0 != test_~tmp~5); 1070#L550-1 test_~tmp___0~2 := test_#t~nondet43;havoc test_#t~nondet43; 1069#L560 assume !(0 != test_~tmp___0~2); 1067#L560-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 1066#L570 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 932#L578-1 assume !(0 != ~pumpRunning~0); 957#L336 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret23, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 898#L394 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret22, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 899#L368-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret41, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 951#L314-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 952#L319-1 isHighWaterLevel_#t~ret41 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret41;havoc isHighWaterLevel_#t~ret41; 985#L496-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1057#L496-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1054#L502-1 processEnvironment__wrappee__highWaterSensor_#t~ret22 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret22;havoc processEnvironment__wrappee__highWaterSensor_#t~ret22; 1050#L372-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 1049#L343 havoc __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1080#L274-1 __utac_acc__Specification3_spec__1_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret9;havoc __utac_acc__Specification3_spec__1_#t~ret9; 1076#L194 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 905#L200-1 [2021-10-13 01:07:00,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:07:00,470 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 01:07:00,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:07:00,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237457363] [2021-10-13 01:07:00,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:07:00,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:07:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:00,593 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:07:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:00,687 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:07:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:07:00,688 INFO L82 PathProgramCache]: Analyzing trace with hash 287627938, now seen corresponding path program 1 times [2021-10-13 01:07:00,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:07:00,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258801994] [2021-10-13 01:07:00,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:07:00,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:07:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:00,697 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:07:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:00,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:07:00,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:07:00,716 INFO L82 PathProgramCache]: Analyzing trace with hash 743699132, now seen corresponding path program 1 times [2021-10-13 01:07:00,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:07:00,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365171759] [2021-10-13 01:07:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:07:00,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:07:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:07:00,868 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 01:07:00,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:07:00,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365171759] [2021-10-13 01:07:00,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365171759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:07:00,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:07:00,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:07:00,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849484047] [2021-10-13 01:07:01,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:07:01,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:07:01,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:07:01,205 INFO L87 Difference]: Start difference. First operand 305 states and 430 transitions. cyclomatic complexity: 128 Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 01:07:01,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:07:01,407 INFO L93 Difference]: Finished difference Result 1017 states and 1438 transitions. [2021-10-13 01:07:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:07:01,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1017 states and 1438 transitions. [2021-10-13 01:07:01,421 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 762 [2021-10-13 01:07:01,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1017 states to 1017 states and 1438 transitions. [2021-10-13 01:07:01,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1017 [2021-10-13 01:07:01,437 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1017 [2021-10-13 01:07:01,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1017 states and 1438 transitions. [2021-10-13 01:07:01,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:07:01,448 INFO L681 BuchiCegarLoop]: Abstraction has 1017 states and 1438 transitions. [2021-10-13 01:07:01,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states and 1438 transitions. [2021-10-13 01:07:01,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 604. [2021-10-13 01:07:01,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 604 states have (on average 1.3874172185430464) internal successors, (838), 603 states have internal predecessors, (838), 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 01:07:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 838 transitions. [2021-10-13 01:07:01,481 INFO L704 BuchiCegarLoop]: Abstraction has 604 states and 838 transitions. [2021-10-13 01:07:01,482 INFO L587 BuchiCegarLoop]: Abstraction has 604 states and 838 transitions. [2021-10-13 01:07:01,482 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:07:01,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 604 states and 838 transitions. [2021-10-13 01:07:01,487 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 430 [2021-10-13 01:07:01,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:07:01,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:07:01,490 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:07:01,490 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:07:01,491 INFO L791 eck$LassoCheckResult]: Stem: 2347#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(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(77, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(101, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(116, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(104, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string17.base, #t~string17.offset, 1);call write~init~int(82, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(73, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(84, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 4 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(75, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2280#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 2216#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 2217#L176 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 2284#L132 assume 0 != main_~tmp~0; 2245#L105 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2246#L200-1 [2021-10-13 01:07:01,491 INFO L793 eck$LassoCheckResult]: Loop: 2246#L200-1 assume !false; 2533#L541 assume test_~splverifierCounter~0 < 4; 2532#L542 test_~tmp~5 := test_#t~nondet42;havoc test_#t~nondet42; 2531#L550 assume !(0 != test_~tmp~5); 2529#L550-1 test_~tmp___0~2 := test_#t~nondet43;havoc test_#t~nondet43; 2528#L560 assume !(0 != test_~tmp___0~2); 2331#L560-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 2276#L570 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2277#L578-1 assume !(0 != ~pumpRunning~0); 2288#L336 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret23, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2299#L394 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret22, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 2512#L368-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret41, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 2555#L314-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 2553#L319-1 isHighWaterLevel_#t~ret41 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret41;havoc isHighWaterLevel_#t~ret41; 2551#L496-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 2549#L496-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 2545#L502-1 processEnvironment__wrappee__highWaterSensor_#t~ret22 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret22;havoc processEnvironment__wrappee__highWaterSensor_#t~ret22; 2542#L372-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 2536#L343 havoc __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 2535#L274-1 __utac_acc__Specification3_spec__1_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret9;havoc __utac_acc__Specification3_spec__1_#t~ret9; 2324#L194 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 2325#L306 __utac_acc__Specification3_spec__1_#t~ret10 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret10;havoc __utac_acc__Specification3_spec__1_#t~ret10; 2332#L200 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2246#L200-1 [2021-10-13 01:07:01,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:07:01,492 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-10-13 01:07:01,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:07:01,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921349584] [2021-10-13 01:07:01,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:07:01,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:07:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:01,568 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:07:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:01,620 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:07:01,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:07:01,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1532549460, now seen corresponding path program 1 times [2021-10-13 01:07:01,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:07:01,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865263924] [2021-10-13 01:07:01,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:07:01,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:07:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:01,631 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:07:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:01,650 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:07:01,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:07:01,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1730302702, now seen corresponding path program 1 times [2021-10-13 01:07:01,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:07:01,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864026723] [2021-10-13 01:07:01,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:07:01,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:07:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:01,724 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:07:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:07:01,773 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:15,457 WARN L207 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 01:09:36,590 WARN L207 SmtUtils]: Spent 39.33 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 01:09:36,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:09:36 BoogieIcfgContainer [2021-10-13 01:09:36,819 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:09:36,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:09:36,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:09:36,820 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:09:36,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:06:58" (3/4) ... [2021-10-13 01:09:36,825 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:09:36,908 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:09:36,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:09:36,916 INFO L168 Benchmark]: Toolchain (without parser) took 159901.86 ms. Allocated memory was 134.2 MB in the beginning and 165.7 MB in the end (delta: 31.5 MB). Free memory was 96.3 MB in the beginning and 117.4 MB in the end (delta: -21.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:36,917 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 134.2 MB. Free memory was 104.5 MB in the beginning and 104.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:09:36,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.83 ms. Allocated memory is still 134.2 MB. Free memory was 96.3 MB in the beginning and 100.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:36,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.83 ms. Allocated memory is still 134.2 MB. Free memory was 100.0 MB in the beginning and 96.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:36,920 INFO L168 Benchmark]: Boogie Preprocessor took 82.31 ms. Allocated memory is still 134.2 MB. Free memory was 96.3 MB in the beginning and 93.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:36,920 INFO L168 Benchmark]: RCFGBuilder took 1147.71 ms. Allocated memory is still 134.2 MB. Free memory was 93.7 MB in the beginning and 52.3 MB in the end (delta: 41.5 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:36,922 INFO L168 Benchmark]: BuchiAutomizer took 157851.67 ms. Allocated memory was 134.2 MB in the beginning and 165.7 MB in the end (delta: 31.5 MB). Free memory was 52.3 MB in the beginning and 119.5 MB in the end (delta: -67.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:36,922 INFO L168 Benchmark]: Witness Printer took 95.35 ms. Allocated memory is still 165.7 MB. Free memory was 119.5 MB in the beginning and 117.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:36,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 134.2 MB. Free memory was 104.5 MB in the beginning and 104.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 622.83 ms. Allocated memory is still 134.2 MB. Free memory was 96.3 MB in the beginning and 100.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.83 ms. Allocated memory is still 134.2 MB. Free memory was 100.0 MB in the beginning and 96.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.31 ms. Allocated memory is still 134.2 MB. Free memory was 96.3 MB in the beginning and 93.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1147.71 ms. Allocated memory is still 134.2 MB. Free memory was 93.7 MB in the beginning and 52.3 MB in the end (delta: 41.5 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 157851.67 ms. Allocated memory was 134.2 MB in the beginning and 165.7 MB in the end (delta: 31.5 MB). Free memory was 52.3 MB in the beginning and 119.5 MB in the end (delta: -67.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 16.1 GB. * Witness Printer took 95.35 ms. Allocated memory is still 165.7 MB. Free memory was 119.5 MB in the beginning and 117.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 604 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 157.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 156.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 119.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 415 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 604 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 560 SDtfs, 913 SDslu, 934 SDs, 0 SdLazy, 110 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 222.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 540]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=32759} State at position 1 is {NULL=0, NULL=0, NULL=32759, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d745ff4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4853f1e7=70, NULL=32772, NULL=32771, methaneLevelCritical=0, tmp=0, NULL=0, retValue_acc=0, NULL=32770, NULL=0, tmp___1=0, NULL=0, NULL=32768, tmp=0, cleanupTimeShifts=4, NULL=32764, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@135e097a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77847e1d=0, waterLevel=1, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, NULL=32779, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cd60ab8=0, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=32784, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, retValue_acc=1, NULL=32776, NULL=32782, NULL=32781, NULL=32774, tmp=0, head=0, NULL=0, NULL=0, NULL=32773, NULL=32775, NULL=32767, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4619b7ff=0, NULL=32766, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76e55ac1=0, tmp___0=0, NULL=0, NULL=0, NULL=32785, NULL=0, NULL=0, tmp___0=1, NULL=32778, NULL=32769, tmp=0, NULL=0, NULL=0, systemActive=1, NULL=32780, \result=1, NULL=0, retValue_acc=0, \result=0, NULL=32762, \result=0, NULL=32761, NULL=0, NULL=32783, NULL=0, NULL=0, NULL=32777, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@718ddfcb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2398992d=0, NULL=32787, retValue_acc=1, tmp___2=70, splverifierCounter=0, NULL=0, \result=0, NULL=32763, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40d212f0=0, NULL=32760, NULL=32765, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ab65c73=0, NULL=32786} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L231] int waterLevel = 1; [L232] int methaneLevelCritical = 0; [L329] int pumpRunning = 0; [L330] int systemActive = 1; [L768] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L531] int splverifierCounter ; [L532] int tmp ; [L533] int tmp___0 ; [L534] int tmp___1 ; [L535] int tmp___2 ; [L538] splverifierCounter = 0 Loop: [L540] COND TRUE 1 [L542] COND TRUE splverifierCounter < 4 [L548] tmp = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp)) [L558] tmp___0 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___0)) [L568] tmp___2 = __VERIFIER_nondet_int() [L570] COND TRUE \read(tmp___2) [L525] systemActive = 1 [L336] COND FALSE !(\read(pumpRunning)) [L343] COND TRUE \read(systemActive) [L391] int tmp ; [L394] COND FALSE !(\read(pumpRunning)) [L365] int tmp ; [L368] COND TRUE ! pumpRunning [L488] int retValue_acc ; [L489] int tmp ; [L490] int tmp___0 ; [L311] int retValue_acc ; [L314] COND TRUE waterLevel < 2 [L315] retValue_acc = 1 [L316] return (retValue_acc); [L494] tmp = isHighWaterSensorDry() [L496] COND TRUE \read(tmp) [L497] tmp___0 = 0 [L501] retValue_acc = tmp___0 [L502] return (retValue_acc); [L370] tmp = isHighWaterLevel() [L372] COND FALSE !(\read(tmp)) [L186] int tmp ; [L187] int tmp___0 ; [L188] int tmp___1 ; [L270] int retValue_acc ; [L273] retValue_acc = methaneLevelCritical [L274] return (retValue_acc); [L192] tmp = isMethaneLevelCritical() [L194] COND FALSE !(\read(tmp)) [L302] int retValue_acc ; [L305] retValue_acc = waterLevel [L306] return (retValue_acc); [L198] tmp___0 = getWaterLevel() [L200] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:09:37,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba9c1c4-63ec-4ebc-a75a-9bdcd18a872c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...