./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.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_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/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_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/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_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/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 0c75cc0efa833cee2ae88b3635c1f8807d970760 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:46:55,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:46:55,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:46:55,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:46:55,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:46:55,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:46:55,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:46:55,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:46:55,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:46:55,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:46:55,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:46:55,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:46:55,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:46:55,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:46:55,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:46:55,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:46:55,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:46:55,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:46:55,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:46:55,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:46:55,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:46:55,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:46:55,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:46:55,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:46:55,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:46:55,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:46:55,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:46:55,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:46:55,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:46:55,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:46:55,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:46:55,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:46:55,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:46:55,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:46:55,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:46:55,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:46:55,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:46:55,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:46:55,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:46:55,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:46:55,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:46:55,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:46:55,828 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:46:55,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:46:55,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:46:55,829 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:46:55,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:46:55,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:46:55,830 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:46:55,830 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:46:55,831 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:46:55,831 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:46:55,831 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:46:55,831 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:46:55,831 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:46:55,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:46:55,832 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:46:55,832 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:46:55,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:46:55,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:46:55,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:46:55,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:46:55,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:46:55,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:46:55,834 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:46:55,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:46:55,834 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:46:55,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:46:55,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:46:55,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:46:55,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:46:55,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:46:55,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:46:55,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:46:55,837 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:46:55,837 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_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c75cc0efa833cee2ae88b3635c1f8807d970760 [2021-10-13 00:46:56,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:46:56,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:46:56,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:46:56,134 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:46:56,136 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:46:56,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-10-13 00:46:56,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/data/1dca58f89/4353566e196f4189939454b2c8bc9d71/FLAG3aba55f31 [2021-10-13 00:46:56,861 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:46:56,861 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-10-13 00:46:56,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/data/1dca58f89/4353566e196f4189939454b2c8bc9d71/FLAG3aba55f31 [2021-10-13 00:46:57,136 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/data/1dca58f89/4353566e196f4189939454b2c8bc9d71 [2021-10-13 00:46:57,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:46:57,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:46:57,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:46:57,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:46:57,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:46:57,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74db1b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57, skipping insertion in model container [2021-10-13 00:46:57,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:46:57,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:46:57,541 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_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-10-13 00:46:57,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:46:57,555 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:46:57,695 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_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-10-13 00:46:57,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:46:57,740 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:46:57,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57 WrapperNode [2021-10-13 00:46:57,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:46:57,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:46:57,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:46:57,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:46:57,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:46:57,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:46:57,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:46:57,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:46:57,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:46:57,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:46:57,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:46:57,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:46:57,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (1/1) ... [2021-10-13 00:46:57,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:46:57,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:46:58,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:46:58,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:46:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:46:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:46:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:46:59,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:46:59,245 INFO L299 CfgBuilder]: Removed 360 assume(true) statements. [2021-10-13 00:46:59,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:46:59 BoogieIcfgContainer [2021-10-13 00:46:59,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:46:59,250 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:46:59,250 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:46:59,253 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:46:59,254 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:46:59,255 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:46:57" (1/3) ... [2021-10-13 00:46:59,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@284db048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:46:59, skipping insertion in model container [2021-10-13 00:46:59,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:46:59,257 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:57" (2/3) ... [2021-10-13 00:46:59,258 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@284db048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:46:59, skipping insertion in model container [2021-10-13 00:46:59,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:46:59,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:46:59" (3/3) ... [2021-10-13 00:46:59,259 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2021-10-13 00:46:59,318 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:46:59,318 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:46:59,319 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:46:59,319 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:46:59,319 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:46:59,319 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:46:59,319 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:46:59,320 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:46:59,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 230 states, 229 states have (on average 1.5065502183406114) internal successors, (345), 229 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:46:59,411 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-10-13 00:46:59,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:46:59,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:46:59,423 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:46:59,424 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:46:59,424 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:46:59,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 230 states, 229 states have (on average 1.5065502183406114) internal successors, (345), 229 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:46:59,444 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-10-13 00:46:59,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:46:59,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:46:59,451 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:46:59,451 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:46:59,455 INFO L791 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 152#L-1true havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 217#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 167#L75true main_#t~ret80 := valid_product_#res;main_~tmp~10 := main_#t~ret80;havoc main_#t~ret80; 197#L980true assume 0 != main_~tmp~10; 52#L957true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 229#L1018-1true [2021-10-13 00:46:59,456 INFO L793 eck$LassoCheckResult]: Loop: 229#L1018-1true assume !false; 5#L370true assume test_~splverifierCounter~0 < 4; 171#L371true test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 87#L379true assume !(0 != test_~tmp~6); 32#L379-1true test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 16#L389true assume !(0 != test_~tmp___0~2); 172#L389-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 55#L399true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 76#L407-1true assume !(0 != ~pumpRunning~0); 163#L100true assume !(0 != ~systemActive~0); 110#L107true havoc __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_#t~ret82, __utac_acc__Specification3_spec__1_#t~ret83, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 108#L472-5true __utac_acc__Specification3_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret81;havoc __utac_acc__Specification3_spec__1_#t~ret81; 227#L1012true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 229#L1018-1true [2021-10-13 00:46:59,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:46:59,462 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:46:59,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:46:59,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8335012] [2021-10-13 00:46:59,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:46:59,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:46:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:46:59,718 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:46:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:46:59,894 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:46:59,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:46:59,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1665583745, now seen corresponding path program 1 times [2021-10-13 00:46:59,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:46:59,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941180964] [2021-10-13 00:46:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:46:59,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:46:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:46:59,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:46:59,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:46:59,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941180964] [2021-10-13 00:46:59,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941180964] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:46:59,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:46:59,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:46:59,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032852710] [2021-10-13 00:46:59,966 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:46:59,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:46:59,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:46:59,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:46:59,986 INFO L87 Difference]: Start difference. First operand has 230 states, 229 states have (on average 1.5065502183406114) internal successors, (345), 229 states have internal predecessors, (345), 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 00:47:00,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:47:00,058 INFO L93 Difference]: Finished difference Result 454 states and 666 transitions. [2021-10-13 00:47:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:47:00,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 454 states and 666 transitions. [2021-10-13 00:47:00,069 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 298 [2021-10-13 00:47:00,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 454 states to 440 states and 651 transitions. [2021-10-13 00:47:00,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 440 [2021-10-13 00:47:00,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 440 [2021-10-13 00:47:00,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 440 states and 651 transitions. [2021-10-13 00:47:00,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:47:00,085 INFO L681 BuchiCegarLoop]: Abstraction has 440 states and 651 transitions. [2021-10-13 00:47:00,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states and 651 transitions. [2021-10-13 00:47:00,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 438. [2021-10-13 00:47:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 438 states have (on average 1.4794520547945205) internal successors, (648), 437 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:47:00,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 648 transitions. [2021-10-13 00:47:00,147 INFO L704 BuchiCegarLoop]: Abstraction has 438 states and 648 transitions. [2021-10-13 00:47:00,147 INFO L587 BuchiCegarLoop]: Abstraction has 438 states and 648 transitions. [2021-10-13 00:47:00,147 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:47:00,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 438 states and 648 transitions. [2021-10-13 00:47:00,155 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 296 [2021-10-13 00:47:00,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:47:00,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:47:00,157 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:47:00,157 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:47:00,158 INFO L791 eck$LassoCheckResult]: Stem: 940#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 899#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 900#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 908#L75 main_#t~ret80 := valid_product_#res;main_~tmp~10 := main_#t~ret80;havoc main_#t~ret80; 909#L980 assume 0 != main_~tmp~10; 778#L957 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 779#L1018-1 [2021-10-13 00:47:00,159 INFO L793 eck$LassoCheckResult]: Loop: 779#L1018-1 assume !false; 697#L370 assume test_~splverifierCounter~0 < 4; 698#L371 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 833#L379 assume !(0 != test_~tmp~6); 748#L379-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 721#L389 assume !(0 != test_~tmp___0~2); 703#L389-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 784#L399 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 714#L407-1 assume !(0 != ~pumpRunning~0); 818#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 796#L184 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 798#L158-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 910#L132-3 assume !(0 == ~pumpRunning~0); 723#L107 havoc __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_#t~ret82, __utac_acc__Specification3_spec__1_#t~ret83, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 858#L472-5 __utac_acc__Specification3_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret81;havoc __utac_acc__Specification3_spec__1_#t~ret81; 859#L1012 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 779#L1018-1 [2021-10-13 00:47:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:47:00,160 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:47:00,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:47:00,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024233007] [2021-10-13 00:47:00,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:47:00,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:47:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:00,249 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:47:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:00,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:47:00,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:47:00,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1220566452, now seen corresponding path program 1 times [2021-10-13 00:47:00,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:47:00,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439234380] [2021-10-13 00:47:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:47:00,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:47:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:47:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:47:00,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:47:00,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439234380] [2021-10-13 00:47:00,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439234380] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:47:00,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:47:00,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:47:00,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364604666] [2021-10-13 00:47:00,386 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:47:00,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:47:00,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:47:00,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:47:00,387 INFO L87 Difference]: Start difference. First operand 438 states and 648 transitions. cyclomatic complexity: 213 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:47:00,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:47:00,553 INFO L93 Difference]: Finished difference Result 443 states and 622 transitions. [2021-10-13 00:47:00,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:47:00,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 443 states and 622 transitions. [2021-10-13 00:47:00,560 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2021-10-13 00:47:00,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 443 states to 443 states and 622 transitions. [2021-10-13 00:47:00,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 443 [2021-10-13 00:47:00,566 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 443 [2021-10-13 00:47:00,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 443 states and 622 transitions. [2021-10-13 00:47:00,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:47:00,572 INFO L681 BuchiCegarLoop]: Abstraction has 443 states and 622 transitions. [2021-10-13 00:47:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states and 622 transitions. [2021-10-13 00:47:00,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-10-13 00:47:00,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 443 states have (on average 1.4040632054176072) internal successors, (622), 442 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:47:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 622 transitions. [2021-10-13 00:47:00,604 INFO L704 BuchiCegarLoop]: Abstraction has 443 states and 622 transitions. [2021-10-13 00:47:00,604 INFO L587 BuchiCegarLoop]: Abstraction has 443 states and 622 transitions. [2021-10-13 00:47:00,605 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:47:00,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 443 states and 622 transitions. [2021-10-13 00:47:00,608 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2021-10-13 00:47:00,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:47:00,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:47:00,613 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:47:00,613 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:47:00,613 INFO L791 eck$LassoCheckResult]: Stem: 1782#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1675#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1676#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1709#L75 main_#t~ret80 := valid_product_#res;main_~tmp~10 := main_#t~ret80;havoc main_#t~ret80; 1710#L980 assume 0 != main_~tmp~10; 1718#L957 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1719#L1018-1 [2021-10-13 00:47:00,615 INFO L793 eck$LassoCheckResult]: Loop: 1719#L1018-1 assume !false; 1590#L370 assume test_~splverifierCounter~0 < 4; 1591#L371 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 1720#L379 assume !(0 != test_~tmp~6); 1652#L379-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 1632#L389 assume !(0 != test_~tmp___0~2); 1595#L389-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 1721#L399 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1616#L407-1 assume !(0 != ~pumpRunning~0); 1762#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1744#L184 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1745#L158-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1713#L132-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1714#L512-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1748#L517-3 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 1778#L303-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1751#L303-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1741#L309-3 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 1640#L136-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1639#L107 havoc __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_#t~ret82, __utac_acc__Specification3_spec__1_#t~ret83, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1784#L472-5 __utac_acc__Specification3_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret81;havoc __utac_acc__Specification3_spec__1_#t~ret81; 1785#L1012 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 1719#L1018-1 [2021-10-13 00:47:00,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:47:00,616 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 00:47:00,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:47:00,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714757944] [2021-10-13 00:47:00,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:47:00,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:47:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:00,696 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:47:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:00,756 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:47:00,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:47:00,757 INFO L82 PathProgramCache]: Analyzing trace with hash -231328544, now seen corresponding path program 1 times [2021-10-13 00:47:00,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:47:00,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833412580] [2021-10-13 00:47:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:47:00,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:47:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:00,765 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:47:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:00,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:47:00,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:47:00,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1021976582, now seen corresponding path program 1 times [2021-10-13 00:47:00,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:47:00,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511305700] [2021-10-13 00:47:00,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:47:00,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:47:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:47:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:47:00,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:47:00,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511305700] [2021-10-13 00:47:00,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511305700] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:47:00,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:47:00,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:47:00,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748980407] [2021-10-13 00:47:01,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:47:01,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:47:01,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:47:01,166 INFO L87 Difference]: Start difference. First operand 443 states and 622 transitions. cyclomatic complexity: 182 Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:47:01,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:47:01,520 INFO L93 Difference]: Finished difference Result 1483 states and 2085 transitions. [2021-10-13 00:47:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:47:01,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1483 states and 2085 transitions. [2021-10-13 00:47:01,552 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1085 [2021-10-13 00:47:01,566 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1483 states to 1483 states and 2085 transitions. [2021-10-13 00:47:01,566 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1483 [2021-10-13 00:47:01,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1483 [2021-10-13 00:47:01,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1483 states and 2085 transitions. [2021-10-13 00:47:01,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:47:01,583 INFO L681 BuchiCegarLoop]: Abstraction has 1483 states and 2085 transitions. [2021-10-13 00:47:01,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states and 2085 transitions. [2021-10-13 00:47:01,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 880. [2021-10-13 00:47:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 880 states have (on average 1.3886363636363637) internal successors, (1222), 879 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:47:01,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1222 transitions. [2021-10-13 00:47:01,610 INFO L704 BuchiCegarLoop]: Abstraction has 880 states and 1222 transitions. [2021-10-13 00:47:01,610 INFO L587 BuchiCegarLoop]: Abstraction has 880 states and 1222 transitions. [2021-10-13 00:47:01,611 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:47:01,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 880 states and 1222 transitions. [2021-10-13 00:47:01,617 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 614 [2021-10-13 00:47:01,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:47:01,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:47:01,619 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:47:01,619 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, 1] [2021-10-13 00:47:01,619 INFO L791 eck$LassoCheckResult]: Stem: 3743#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3620#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 3621#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 3655#L75 main_#t~ret80 := valid_product_#res;main_~tmp~10 := main_#t~ret80;havoc main_#t~ret80; 3656#L980 assume 0 != main_~tmp~10; 3665#L957 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3666#L1018-1 [2021-10-13 00:47:01,620 INFO L793 eck$LassoCheckResult]: Loop: 3666#L1018-1 assume !false; 3983#L370 assume test_~splverifierCounter~0 < 4; 3979#L371 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 3970#L379 assume !(0 != test_~tmp~6); 3967#L379-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 3966#L389 assume !(0 != test_~tmp___0~2); 3964#L389-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 3963#L399 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3672#L407-1 assume !(0 != ~pumpRunning~0); 3922#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3955#L184 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3915#L158-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3952#L132-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 3948#L512-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 3946#L517-3 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 3945#L303-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 3943#L303-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 3942#L309-3 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 3938#L136-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 3889#L107 havoc __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_#t~ret82, __utac_acc__Specification3_spec__1_#t~ret83, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 3996#L472-5 __utac_acc__Specification3_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret81;havoc __utac_acc__Specification3_spec__1_#t~ret81; 3995#L1012 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 3994#L504 __utac_acc__Specification3_spec__1_#t~ret82 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret82;havoc __utac_acc__Specification3_spec__1_#t~ret82; 3992#L1018 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 3666#L1018-1 [2021-10-13 00:47:01,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:47:01,620 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-10-13 00:47:01,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:47:01,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997411791] [2021-10-13 00:47:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:47:01,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:47:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:01,659 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:47:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:01,705 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:47:01,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:47:01,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1031581650, now seen corresponding path program 1 times [2021-10-13 00:47:01,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:47:01,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352356239] [2021-10-13 00:47:01,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:47:01,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:47:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:01,713 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:47:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:01,726 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:47:01,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:47:01,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1428002440, now seen corresponding path program 1 times [2021-10-13 00:47:01,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:47:01,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421715291] [2021-10-13 00:47:01,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:47:01,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:47:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:01,764 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:47:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:47:01,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:48:00,665 WARN L207 SmtUtils]: Spent 58.51 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:49:02,377 WARN L207 SmtUtils]: Spent 31.06 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:49:02,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:49:02 BoogieIcfgContainer [2021-10-13 00:49:02,489 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:49:02,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:49:02,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:49:02,490 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:49:02,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:46:59" (3/4) ... [2021-10-13 00:49:02,503 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:49:02,559 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:49:02,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:49:02,560 INFO L168 Benchmark]: Toolchain (without parser) took 125419.66 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 83.2 MB in the beginning and 35.4 MB in the end (delta: 47.8 MB). Peak memory consumption was 79.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:49:02,561 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 21.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:49:02,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.90 ms. Allocated memory is still 117.4 MB. Free memory was 82.8 MB in the beginning and 84.2 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:49:02,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.28 ms. Allocated memory is still 117.4 MB. Free memory was 84.2 MB in the beginning and 78.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:49:02,562 INFO L168 Benchmark]: Boogie Preprocessor took 72.72 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 74.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:49:02,563 INFO L168 Benchmark]: RCFGBuilder took 1293.77 ms. Allocated memory is still 117.4 MB. Free memory was 74.4 MB in the beginning and 68.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:49:02,563 INFO L168 Benchmark]: BuchiAutomizer took 123239.54 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 68.4 MB in the beginning and 37.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 70.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:49:02,564 INFO L168 Benchmark]: Witness Printer took 69.39 ms. Allocated memory is still 148.9 MB. Free memory was 37.5 MB in the beginning and 35.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:49:02,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 21.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 596.90 ms. Allocated memory is still 117.4 MB. Free memory was 82.8 MB in the beginning and 84.2 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 137.28 ms. Allocated memory is still 117.4 MB. Free memory was 84.2 MB in the beginning and 78.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.72 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 74.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1293.77 ms. Allocated memory is still 117.4 MB. Free memory was 74.4 MB in the beginning and 68.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 123239.54 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 68.4 MB in the beginning and 37.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 70.0 MB. Max. memory is 16.1 GB. * Witness Printer took 69.39 ms. Allocated memory is still 148.9 MB. Free memory was 37.5 MB in the beginning and 35.4 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 880 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 123.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 122.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 105.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 605 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 880 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 952 SDtfs, 1549 SDslu, 1565 SDs, 0 SdLazy, 212 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 309.8ms 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: 369]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2424} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=2424, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53f1173=0, NULL=0, NULL=29860, NULL=29855, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fd72463=0, retValue_acc=0, NULL=0, tmp=0, NULL=29858, NULL=0, tmp___1=0, NULL=0, NULL=29836, NULL=29849, cleanupTimeShifts=4, NULL=29851, NULL=29854, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16a45f59=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f75528=68, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@310b9de8=0, NULL=2425, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=29862, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76cd6867=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d87b292=0, NULL=0, tmp=1, NULL=0, NULL=29859, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5afe7c3d=0, retValue_acc=1, NULL=0, tmp___0=0, NULL=29830, NULL=29840, NULL=29861, tmp=0, head=0, tmp=0, NULL=0, NULL=0, tmp=0, NULL=29832, NULL=0, NULL=0, NULL=2426, NULL=29838, NULL=29856, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45502470=0, tmp___0=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=29850, tmp___0=1, NULL=0, systemActive=1, \result=1, NULL=0, retValue_acc=0, \result=0, NULL=29831, retValue_acc=0, NULL=29852, \result=0, NULL=29833, NULL=0, NULL=0, NULL=29857, NULL=29835, NULL=29834, retValue_acc=1, tmp___2=68, splverifierCounter=0, NULL=0, \result=0, NULL=29837, tmp___1=0, NULL=0, NULL=0, NULL=29853, NULL=0, NULL=29839, NULL=29848, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66bfd21c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3909933c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ff64f89=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L429] int waterLevel = 1; [L430] int methaneLevelCritical = 0; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 Loop: [L369] COND TRUE 1 [L371] COND TRUE splverifierCounter < 4 [L377] tmp = __VERIFIER_nondet_int() [L379] COND FALSE !(\read(tmp)) [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND TRUE \read(tmp___2) [L351] systemActive = 1 [L100] COND FALSE !(\read(pumpRunning)) [L107] COND TRUE \read(systemActive) [L181] int tmp ; [L184] COND FALSE !(\read(pumpRunning)) [L155] int tmp ; [L158] COND FALSE !(\read(pumpRunning)) [L129] int tmp ; [L132] COND TRUE ! pumpRunning [L295] int retValue_acc ; [L296] int tmp ; [L297] int tmp___0 ; [L509] int retValue_acc ; [L512] COND TRUE waterLevel < 2 [L513] retValue_acc = 1 [L514] return (retValue_acc); [L301] tmp = isHighWaterSensorDry() [L303] COND TRUE \read(tmp) [L304] tmp___0 = 0 [L308] retValue_acc = tmp___0 [L309] return (retValue_acc); [L134] tmp = isHighWaterLevel() [L136] COND FALSE !(\read(tmp)) [L1004] int tmp ; [L1005] int tmp___0 ; [L1006] int tmp___1 ; [L468] int retValue_acc ; [L471] retValue_acc = methaneLevelCritical [L472] return (retValue_acc); [L1010] tmp = isMethaneLevelCritical() [L1012] COND FALSE !(\read(tmp)) [L500] int retValue_acc ; [L503] retValue_acc = waterLevel [L504] return (retValue_acc); [L1016] tmp___0 = getWaterLevel() [L1018] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:49:02,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe2e1551-88e7-46ae-96f1-cf0988f4fd66/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...