./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be --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 76c265ee8cd79c32bac129a25f21c9052690eb74ca3013be3603e97bc6872f20 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-21 19:48:55,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:48:55,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:48:55,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:48:55,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:48:55,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:48:55,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:48:55,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:48:55,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:48:55,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:48:55,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:48:55,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:48:55,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:48:55,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:48:55,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:48:55,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:48:55,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:48:55,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:48:55,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:48:55,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:48:55,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:48:55,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:48:55,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:48:55,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:48:55,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:48:56,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:48:56,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:48:56,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:48:56,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:48:56,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:48:56,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:48:56,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:48:56,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:48:56,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:48:56,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:48:56,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:48:56,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:48:56,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:48:56,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:48:56,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:48:56,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:48:56,020 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:48:56,080 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:48:56,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:48:56,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:48:56,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:48:56,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:48:56,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:48:56,084 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:48:56,084 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:48:56,084 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:48:56,085 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:48:56,086 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:48:56,086 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:48:56,087 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:48:56,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:48:56,087 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:48:56,088 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:48:56,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:48:56,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:48:56,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:48:56,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:48:56,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:48:56,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:48:56,089 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:48:56,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:48:56,090 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:48:56,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:48:56,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:48:56,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:48:56,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:48:56,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:48:56,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:48:56,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:48:56,096 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:48:56,096 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_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76c265ee8cd79c32bac129a25f21c9052690eb74ca3013be3603e97bc6872f20 [2021-10-21 19:48:56,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:48:56,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:48:56,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:48:56,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:48:56,482 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:48:56,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2021-10-21 19:48:56,586 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/data/ddf38f257/4f528676be5e4c40b81a3d79aa62aded/FLAGc7655102a [2021-10-21 19:48:57,177 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:48:57,181 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2021-10-21 19:48:57,196 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/data/ddf38f257/4f528676be5e4c40b81a3d79aa62aded/FLAGc7655102a [2021-10-21 19:48:57,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/data/ddf38f257/4f528676be5e4c40b81a3d79aa62aded [2021-10-21 19:48:57,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:48:57,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:48:57,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:48:57,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:48:57,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:48:57,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:57,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26873e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57, skipping insertion in model container [2021-10-21 19:48:57,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:57,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:48:57,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:48:57,850 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_3373eb03-6001-4f7f-8732-b1e246dcbae5/sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c[13732,13745] [2021-10-21 19:48:57,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:48:57,896 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:48:57,972 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_3373eb03-6001-4f7f-8732-b1e246dcbae5/sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c[13732,13745] [2021-10-21 19:48:58,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:48:58,029 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:48:58,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58 WrapperNode [2021-10-21 19:48:58,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:48:58,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:48:58,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:48:58,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:48:58,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:48:58,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:48:58,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:48:58,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:48:58,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:48:58,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:48:58,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:48:58,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:48:58,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (1/1) ... [2021-10-21 19:48:58,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:48:58,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:48:58,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:48:58,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:48:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:48:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:48:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:48:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:48:59,506 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:48:59,506 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-21 19:48:59,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:48:59 BoogieIcfgContainer [2021-10-21 19:48:59,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:48:59,517 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:48:59,517 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:48:59,527 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:48:59,528 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:48:59,529 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:48:57" (1/3) ... [2021-10-21 19:48:59,531 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bd9cfc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:48:59, skipping insertion in model container [2021-10-21 19:48:59,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:48:59,531 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:58" (2/3) ... [2021-10-21 19:48:59,532 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bd9cfc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:48:59, skipping insertion in model container [2021-10-21 19:48:59,532 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:48:59,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:48:59" (3/3) ... [2021-10-21 19:48:59,534 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2021-10-21 19:48:59,597 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:48:59,597 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:48:59,597 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:48:59,597 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:48:59,597 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:48:59,597 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:48:59,598 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:48:59,598 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:48:59,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.514018691588785) internal successors, (162), 107 states have internal predecessors, (162), 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) [2021-10-21 19:48:59,645 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-21 19:48:59,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:48:59,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:48:59,655 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:48:59,655 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:59,655 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:48:59,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.514018691588785) internal successors, (162), 107 states have internal predecessors, (162), 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) [2021-10-21 19:48:59,667 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-21 19:48:59,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:48:59,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:48:59,668 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:48:59,669 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:59,674 INFO L791 eck$LassoCheckResult]: Stem: 98#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 40#L-1true havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 48#L573true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 110#L581true main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 104#L680true assume 0 != main_~tmp~4; 79#L656true havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 107#L69-1true [2021-10-21 19:48:59,675 INFO L793 eck$LassoCheckResult]: Loop: 107#L69-1true assume !false; 80#L902true assume test_~splverifierCounter~0 < 4; 85#L903true test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 52#L911true assume !(0 != test_~tmp~9); 91#L911-1true test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 92#L921true assume !(0 != test_~tmp___0~2); 75#L921-1true test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 11#L931true assume 0 != test_~tmp___2~0; 84#L937-2true assume !(0 != ~pumpRunning~0); 16#L703true assume !(0 != ~systemActive~0); 60#L710true havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 47#L136-1true __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 7#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 107#L69-1true [2021-10-21 19:48:59,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:48:59,682 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 19:48:59,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:48:59,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838218765] [2021-10-21 19:48:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:48:59,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:00,043 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:00,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:00,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:00,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1680298507, now seen corresponding path program 1 times [2021-10-21 19:49:00,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:00,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383322112] [2021-10-21 19:49:00,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:00,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:00,275 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:00,288 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:00,290 INFO L82 PathProgramCache]: Analyzing trace with hash 33980431, now seen corresponding path program 1 times [2021-10-21 19:49:00,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:00,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094570680] [2021-10-21 19:49:00,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:00,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:00,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:49:00,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094570680] [2021-10-21 19:49:00,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094570680] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:00,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:00,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:49:00,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272972093] [2021-10-21 19:49:00,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:49:00,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:49:00,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:49:00,717 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.514018691588785) internal successors, (162), 107 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:49:00,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:00,963 INFO L93 Difference]: Finished difference Result 108 states and 151 transitions. [2021-10-21 19:49:00,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:49:00,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 151 transitions. [2021-10-21 19:49:00,978 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-10-21 19:49:00,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 144 transitions. [2021-10-21 19:49:00,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2021-10-21 19:49:00,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2021-10-21 19:49:00,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 144 transitions. [2021-10-21 19:49:00,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:49:00,997 INFO L681 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2021-10-21 19:49:01,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 144 transitions. [2021-10-21 19:49:01,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-10-21 19:49:01,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.4257425742574257) internal successors, (144), 100 states have internal predecessors, (144), 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) [2021-10-21 19:49:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2021-10-21 19:49:01,055 INFO L704 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2021-10-21 19:49:01,055 INFO L587 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2021-10-21 19:49:01,055 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:49:01,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 144 transitions. [2021-10-21 19:49:01,059 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-10-21 19:49:01,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:49:01,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:49:01,060 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:49:01,060 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:01,060 INFO L791 eck$LassoCheckResult]: Stem: 331#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 292#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 293#L573 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 303#L581 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 334#L680 assume 0 != main_~tmp~4; 322#L656 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 242#L69-1 [2021-10-21 19:49:01,061 INFO L793 eck$LassoCheckResult]: Loop: 242#L69-1 assume !false; 323#L902 assume test_~splverifierCounter~0 < 4; 324#L903 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 308#L911 assume !(0 != test_~tmp~9); 276#L911-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 329#L921 assume !(0 != test_~tmp___0~2); 280#L921-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 248#L931 assume 0 != test_~tmp___2~0; 249#L937-2 assume !(0 != ~pumpRunning~0); 258#L703 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 259#L761 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 312#L735-1 assume !(0 != ~pumpRunning~0); 237#L710 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 302#L136-1 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 241#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 242#L69-1 [2021-10-21 19:49:01,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:01,062 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 19:49:01,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:01,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840704846] [2021-10-21 19:49:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:01,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:01,157 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:01,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:01,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:01,287 INFO L82 PathProgramCache]: Analyzing trace with hash -2008522617, now seen corresponding path program 1 times [2021-10-21 19:49:01,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:01,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381463263] [2021-10-21 19:49:01,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:01,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:01,300 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:01,310 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:01,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:01,317 INFO L82 PathProgramCache]: Analyzing trace with hash 441062433, now seen corresponding path program 1 times [2021-10-21 19:49:01,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:01,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849887678] [2021-10-21 19:49:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:01,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:01,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:01,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:49:01,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849887678] [2021-10-21 19:49:01,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849887678] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:01,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:01,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:49:01,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260566532] [2021-10-21 19:49:01,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:49:01,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:49:01,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:49:01,520 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. cyclomatic complexity: 45 Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:49:01,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:01,718 INFO L93 Difference]: Finished difference Result 355 states and 516 transitions. [2021-10-21 19:49:01,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:49:01,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 516 transitions. [2021-10-21 19:49:01,732 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 241 [2021-10-21 19:49:01,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 355 states and 516 transitions. [2021-10-21 19:49:01,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 355 [2021-10-21 19:49:01,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2021-10-21 19:49:01,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 355 states and 516 transitions. [2021-10-21 19:49:01,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:49:01,752 INFO L681 BuchiCegarLoop]: Abstraction has 355 states and 516 transitions. [2021-10-21 19:49:01,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states and 516 transitions. [2021-10-21 19:49:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 196. [2021-10-21 19:49:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 196 states have (on average 1.4183673469387754) internal successors, (278), 195 states have internal predecessors, (278), 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) [2021-10-21 19:49:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 278 transitions. [2021-10-21 19:49:01,777 INFO L704 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2021-10-21 19:49:01,777 INFO L587 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2021-10-21 19:49:01,777 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:49:01,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 278 transitions. [2021-10-21 19:49:01,779 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2021-10-21 19:49:01,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:49:01,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:49:01,780 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:49:01,780 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:01,781 INFO L791 eck$LassoCheckResult]: Stem: 832#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 773#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 774#L573 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 785#L581 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 835#L680 assume 0 != main_~tmp~4; 810#L656 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 811#L69-1 [2021-10-21 19:49:01,785 INFO L793 eck$LassoCheckResult]: Loop: 811#L69-1 assume !false; 876#L902 assume test_~splverifierCounter~0 < 4; 818#L903 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 790#L911 assume !(0 != test_~tmp~9); 755#L911-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 901#L921 assume !(0 != test_~tmp___0~2); 900#L921-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 898#L931 assume 0 != test_~tmp___2~0; 895#L937-2 assume !(0 != ~pumpRunning~0); 735#L703 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 736#L761 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 795#L735-1 assume !(0 != ~pumpRunning~0); 711#L710 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 783#L136-1 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 784#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 722#L168 __utac_acc__Specification3_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 723#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 811#L69-1 [2021-10-21 19:49:01,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:01,785 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-21 19:49:01,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:01,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293590942] [2021-10-21 19:49:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:01,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:01,852 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:01,920 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:01,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:01,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1749911687, now seen corresponding path program 1 times [2021-10-21 19:49:01,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:01,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895561805] [2021-10-21 19:49:01,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:01,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:01,928 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:01,936 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:01,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:01,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1340756845, now seen corresponding path program 1 times [2021-10-21 19:49:01,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:01,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405943571] [2021-10-21 19:49:01,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:01,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:01,985 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:02,036 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:50:14,046 WARN L207 SmtUtils]: Spent 1.20 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 19:51:28,284 WARN L207 SmtUtils]: Spent 35.87 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 19:51:28,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:51:28 BoogieIcfgContainer [2021-10-21 19:51:28,417 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:51:28,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:51:28,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:51:28,419 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:51:28,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:48:59" (3/4) ... [2021-10-21 19:51:28,424 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:51:28,487 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:51:28,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:51:28,489 INFO L168 Benchmark]: Toolchain (without parser) took 151026.97 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 70.3 MB in the beginning and 43.4 MB in the end (delta: 26.9 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:51:28,489 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 113.2 MB. Free memory is still 87.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:51:28,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.39 ms. Allocated memory is still 113.2 MB. Free memory was 70.1 MB in the beginning and 80.4 MB in the end (delta: -10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:51:28,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.15 ms. Allocated memory is still 113.2 MB. Free memory was 79.9 MB in the beginning and 76.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:51:28,492 INFO L168 Benchmark]: Boogie Preprocessor took 74.06 ms. Allocated memory is still 113.2 MB. Free memory was 76.7 MB in the beginning and 74.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:51:28,492 INFO L168 Benchmark]: RCFGBuilder took 1307.52 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 74.1 MB in the beginning and 117.9 MB in the end (delta: -43.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:51:28,493 INFO L168 Benchmark]: BuchiAutomizer took 148900.39 ms. Allocated memory is still 148.9 MB. Free memory was 117.9 MB in the beginning and 45.5 MB in the end (delta: 72.5 MB). Peak memory consumption was 93.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:51:28,494 INFO L168 Benchmark]: Witness Printer took 69.18 ms. Allocated memory is still 148.9 MB. Free memory was 45.5 MB in the beginning and 43.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:51:28,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 113.2 MB. Free memory is still 87.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 567.39 ms. Allocated memory is still 113.2 MB. Free memory was 70.1 MB in the beginning and 80.4 MB in the end (delta: -10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.15 ms. Allocated memory is still 113.2 MB. Free memory was 79.9 MB in the beginning and 76.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.06 ms. Allocated memory is still 113.2 MB. Free memory was 76.7 MB in the beginning and 74.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1307.52 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 74.1 MB in the beginning and 117.9 MB in the end (delta: -43.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 148900.39 ms. Allocated memory is still 148.9 MB. Free memory was 117.9 MB in the beginning and 45.5 MB in the end (delta: 72.5 MB). Peak memory consumption was 93.3 MB. Max. memory is 16.1 GB. * Witness Printer took 69.18 ms. Allocated memory is still 148.9 MB. Free memory was 45.5 MB in the beginning and 43.4 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 196 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 148.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 148.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 66.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 159 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 196 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 346 SDtfs, 982 SDslu, 606 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 229.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 901]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=51608, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@654e9ae8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44fbfc4b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c32a288=0, NULL=0, NULL=51619, retValue_acc=0, NULL=0, NULL=0, NULL=51624, NULL=51605, NULL=51621, methaneLevelCritical=0, NULL=51604, NULL=0, NULL=0, NULL=51623, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bb5937c=0, tmp=0, NULL=0, NULL=0, tmp___0=1, NULL=51601, tmp=0, cleanupTimeShifts=4, NULL=51611, NULL=51616, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66c0ada=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60612391=0, NULL=51609, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72a64f45=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ebbe0bd=49, NULL=0, NULL=51606, NULL=0, NULL=0, NULL=27941, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=51613, \result=0, NULL=51620, NULL=51617, tmp=1, NULL=0, NULL=51625, NULL=0, NULL=0, NULL=0, NULL=0, NULL=51610, retValue_acc=1, NULL=0, NULL=0, NULL=51627, NULL=0, tmp___2=49, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@636bf012=0, \result=0, NULL=51602, NULL=51626, NULL=51614, tmp___1=0, head=0, NULL=51612, tmp=0, NULL=0, NULL=51603, NULL=51618, NULL=0, NULL=0, NULL=51622, NULL=51607, NULL=0, NULL=51615, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@588fc82a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L93] int waterLevel = 1; [L94] int methaneLevelCritical = 0; [L351] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int cleanupTimeShifts = 4; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L671] int retValue_acc ; [L672] int tmp ; [L577] int retValue_acc ; [L580] retValue_acc = 1 [L581] return (retValue_acc); [L678] tmp = valid_product() [L680] COND TRUE \read(tmp) [L892] int splverifierCounter ; [L893] int tmp ; [L894] int tmp___0 ; [L895] int tmp___1 ; [L896] int tmp___2 ; [L899] splverifierCounter = 0 Loop: [L901] COND TRUE 1 [L903] COND TRUE splverifierCounter < 4 [L909] tmp = __VERIFIER_nondet_int() [L911] COND FALSE !(\read(tmp)) [L919] tmp___0 = __VERIFIER_nondet_int() [L921] COND FALSE !(\read(tmp___0)) [L929] tmp___2 = __VERIFIER_nondet_int() [L931] COND TRUE \read(tmp___2) [L703] COND FALSE !(\read(pumpRunning)) [L710] COND TRUE \read(systemActive) [L758] int tmp ; [L761] COND FALSE !(\read(pumpRunning)) [L732] int tmp ; [L735] COND FALSE !(\read(pumpRunning)) [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L132] int retValue_acc ; [L135] retValue_acc = methaneLevelCritical [L136] return (retValue_acc); [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L164] int retValue_acc ; [L167] retValue_acc = waterLevel [L168] return (retValue_acc); [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:51:28,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3373eb03-6001-4f7f-8732-b1e246dcbae5/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...