./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product60.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_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/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_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/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_cdd08724-5830-4c9d-934f-290833fe4b25/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 b57a794fa6b429f14911ed2b6a28ecb30bf580e5cb37ae05e7120c2d485c2d18 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 19:52:29,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:52:29,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:52:29,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:52:29,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:52:29,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:52:29,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:52:29,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:52:29,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:52:29,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:52:29,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:52:29,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:52:29,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:52:29,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:52:30,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:52:30,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:52:30,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:52:30,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:52:30,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:52:30,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:52:30,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:52:30,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:52:30,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:52:30,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:52:30,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:52:30,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:52:30,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:52:30,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:52:30,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:52:30,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:52:30,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:52:30,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:52:30,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:52:30,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:52:30,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:52:30,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:52:30,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:52:30,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:52:30,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:52:30,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:52:30,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:52:30,055 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:52:30,099 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:52:30,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:52:30,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:52:30,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:52:30,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:52:30,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:52:30,102 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:52:30,102 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:52:30,102 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:52:30,103 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:52:30,104 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:52:30,104 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:52:30,104 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:52:30,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:52:30,105 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:52:30,109 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:52:30,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:52:30,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:52:30,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:52:30,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:52:30,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:52:30,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:52:30,110 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:52:30,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:52:30,110 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:52:30,110 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:52:30,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:52:30,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:52:30,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:52:30,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:52:30,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:52:30,111 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:52:30,112 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:52:30,112 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_cdd08724-5830-4c9d-934f-290833fe4b25/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b57a794fa6b429f14911ed2b6a28ecb30bf580e5cb37ae05e7120c2d485c2d18 [2021-10-21 19:52:30,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:52:30,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:52:30,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:52:30,422 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:52:30,424 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:52:30,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2021-10-21 19:52:30,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/data/1b6ed7f40/35acf941a4b4449699e41df564102e15/FLAG87d6f1434 [2021-10-21 19:52:31,126 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:52:31,126 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2021-10-21 19:52:31,153 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/data/1b6ed7f40/35acf941a4b4449699e41df564102e15/FLAG87d6f1434 [2021-10-21 19:52:31,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/data/1b6ed7f40/35acf941a4b4449699e41df564102e15 [2021-10-21 19:52:31,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:52:31,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:52:31,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:52:31,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:52:31,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:52:31,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:31,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709398ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31, skipping insertion in model container [2021-10-21 19:52:31,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:31,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:52:31,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:52:31,795 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_cdd08724-5830-4c9d-934f-290833fe4b25/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c[18075,18088] [2021-10-21 19:52:31,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:52:31,825 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:52:31,933 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_cdd08724-5830-4c9d-934f-290833fe4b25/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c[18075,18088] [2021-10-21 19:52:31,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:52:31,961 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:52:31,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31 WrapperNode [2021-10-21 19:52:31,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:52:31,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:52:31,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:52:31,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:52:31,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:31,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:32,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:52:32,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:52:32,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:52:32,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:52:32,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:32,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:32,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:32,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:32,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:32,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:32,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:32,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:52:32,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:52:32,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:52:32,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:52:32,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (1/1) ... [2021-10-21 19:52:32,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:52:32,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:52:32,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:52:32,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:52:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:52:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:52:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:52:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:52:33,292 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:52:33,292 INFO L299 CfgBuilder]: Removed 212 assume(true) statements. [2021-10-21 19:52:33,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:52:33 BoogieIcfgContainer [2021-10-21 19:52:33,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:52:33,295 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:52:33,295 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:52:33,299 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:52:33,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:52:33,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:52:31" (1/3) ... [2021-10-21 19:52:33,301 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1938d258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:52:33, skipping insertion in model container [2021-10-21 19:52:33,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:52:33,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:31" (2/3) ... [2021-10-21 19:52:33,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1938d258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:52:33, skipping insertion in model container [2021-10-21 19:52:33,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:52:33,303 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:52:33" (3/3) ... [2021-10-21 19:52:33,304 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2021-10-21 19:52:33,348 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:52:33,348 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:52:33,348 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:52:33,348 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:52:33,348 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:52:33,349 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:52:33,349 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:52:33,349 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:52:33,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 143 states, 142 states have (on average 1.5) internal successors, (213), 142 states have internal predecessors, (213), 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 19:52:33,393 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2021-10-21 19:52:33,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:52:33,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:52:33,402 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:33,402 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:33,402 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:52:33,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 143 states, 142 states have (on average 1.5) internal successors, (213), 142 states have internal predecessors, (213), 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 19:52:33,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2021-10-21 19:52:33,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:52:33,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:52:33,415 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:33,415 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:33,420 INFO L791 eck$LassoCheckResult]: Stem: 128#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 46#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 125#L916true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 94#L924true main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 44#L880true assume 0 != main_~tmp~10; 49#L853true ~switchedOnBeforeTS~0 := 0; 20#L385true havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 124#L406-1true [2021-10-21 19:52:33,421 INFO L793 eck$LassoCheckResult]: Loop: 124#L406-1true assume !false; 145#L319true assume test_~splverifierCounter~0 < 4; 90#L320true test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 107#L328true assume !(0 != test_~tmp~5); 82#L328-1true test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 57#L338true assume !(0 != test_~tmp___0~2); 103#L338-1true test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 118#L348true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 36#L356-1true havoc __utac_acc__Specification5_spec__2_#t~ret33;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 37#L203true __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 91#L395true assume !(0 != ~pumpRunning~0); 77#L74true assume !(0 != ~systemActive~0); 135#L81true havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 143#L1013true __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 45#L406true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 124#L406-1true [2021-10-21 19:52:33,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:33,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:52:33,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:52:33,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676980121] [2021-10-21 19:52:33,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:33,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:52:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:33,759 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:52:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:33,989 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:52:33,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:33,999 INFO L82 PathProgramCache]: Analyzing trace with hash 677719542, now seen corresponding path program 1 times [2021-10-21 19:52:33,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:52:34,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134835534] [2021-10-21 19:52:34,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:34,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:52:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:52:34,091 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 19:52:34,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:52:34,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134835534] [2021-10-21 19:52:34,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134835534] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:52:34,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:52:34,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:52:34,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651033604] [2021-10-21 19:52:34,099 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:52:34,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:52:34,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:52:34,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:52:34,122 INFO L87 Difference]: Start difference. First operand has 143 states, 142 states have (on average 1.5) internal successors, (213), 142 states have internal predecessors, (213), 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 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:52:34,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:52:34,235 INFO L93 Difference]: Finished difference Result 279 states and 401 transitions. [2021-10-21 19:52:34,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:52:34,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 401 transitions. [2021-10-21 19:52:34,253 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2021-10-21 19:52:34,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 265 states and 386 transitions. [2021-10-21 19:52:34,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2021-10-21 19:52:34,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2021-10-21 19:52:34,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 386 transitions. [2021-10-21 19:52:34,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:52:34,285 INFO L681 BuchiCegarLoop]: Abstraction has 265 states and 386 transitions. [2021-10-21 19:52:34,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 386 transitions. [2021-10-21 19:52:34,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2021-10-21 19:52:34,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 263 states have (on average 1.456273764258555) internal successors, (383), 262 states have internal predecessors, (383), 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 19:52:34,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 383 transitions. [2021-10-21 19:52:34,351 INFO L704 BuchiCegarLoop]: Abstraction has 263 states and 383 transitions. [2021-10-21 19:52:34,351 INFO L587 BuchiCegarLoop]: Abstraction has 263 states and 383 transitions. [2021-10-21 19:52:34,351 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:52:34,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 263 states and 383 transitions. [2021-10-21 19:52:34,363 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2021-10-21 19:52:34,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:52:34,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:52:34,365 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:34,365 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 19:52:34,366 INFO L791 eck$LassoCheckResult]: Stem: 582#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 501#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 502#L916 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 554#L924 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 496#L880 assume 0 != main_~tmp~10; 497#L853 ~switchedOnBeforeTS~0 := 0; 461#L385 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 462#L406-1 [2021-10-21 19:52:34,367 INFO L793 eck$LassoCheckResult]: Loop: 462#L406-1 assume !false; 629#L319 assume test_~splverifierCounter~0 < 4; 551#L320 test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 552#L328 assume !(0 != test_~tmp~5); 531#L328-1 test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 516#L338 assume !(0 != test_~tmp___0~2); 510#L338-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 563#L348 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 578#L356-1 havoc __utac_acc__Specification5_spec__2_#t~ret33;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 489#L203 __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 490#L395 assume !(0 != ~pumpRunning~0); 443#L74 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 541#L132 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 587#L106-1 assume !(0 == ~pumpRunning~0); 635#L81 havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 634#L1013 __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 632#L406 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 462#L406-1 [2021-10-21 19:52:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:34,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:52:34,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:52:34,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935039992] [2021-10-21 19:52:34,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:34,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:52:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:34,452 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:52:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:34,554 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:52:34,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:34,555 INFO L82 PathProgramCache]: Analyzing trace with hash -532272225, now seen corresponding path program 1 times [2021-10-21 19:52:34,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:52:34,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941566481] [2021-10-21 19:52:34,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:34,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:52:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:52:34,573 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 19:52:34,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:52:34,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941566481] [2021-10-21 19:52:34,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941566481] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:52:34,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:52:34,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:52:34,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225337128] [2021-10-21 19:52:34,575 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:52:34,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:52:34,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:52:34,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:52:34,576 INFO L87 Difference]: Start difference. First operand 263 states and 383 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 19:52:34,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:52:34,675 INFO L93 Difference]: Finished difference Result 362 states and 505 transitions. [2021-10-21 19:52:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:52:34,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 362 states and 505 transitions. [2021-10-21 19:52:34,680 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2021-10-21 19:52:34,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 362 states to 362 states and 505 transitions. [2021-10-21 19:52:34,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 362 [2021-10-21 19:52:34,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 362 [2021-10-21 19:52:34,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 362 states and 505 transitions. [2021-10-21 19:52:34,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:52:34,687 INFO L681 BuchiCegarLoop]: Abstraction has 362 states and 505 transitions. [2021-10-21 19:52:34,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states and 505 transitions. [2021-10-21 19:52:34,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-10-21 19:52:34,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 362 states have (on average 1.3950276243093922) internal successors, (505), 361 states have internal predecessors, (505), 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 19:52:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 505 transitions. [2021-10-21 19:52:34,721 INFO L704 BuchiCegarLoop]: Abstraction has 362 states and 505 transitions. [2021-10-21 19:52:34,721 INFO L587 BuchiCegarLoop]: Abstraction has 362 states and 505 transitions. [2021-10-21 19:52:34,721 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:52:34,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 362 states and 505 transitions. [2021-10-21 19:52:34,724 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2021-10-21 19:52:34,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:52:34,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:52:34,725 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:34,725 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:34,725 INFO L791 eck$LassoCheckResult]: Stem: 1224#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1131#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 1132#L916 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1192#L924 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 1127#L880 assume 0 != main_~tmp~10; 1128#L853 ~switchedOnBeforeTS~0 := 0; 1092#L385 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1093#L406-1 [2021-10-21 19:52:34,725 INFO L793 eck$LassoCheckResult]: Loop: 1093#L406-1 assume !false; 1239#L319 assume test_~splverifierCounter~0 < 4; 1240#L320 test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 1205#L328 assume !(0 != test_~tmp~5); 1162#L328-1 test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 1146#L338 assume !(0 != test_~tmp___0~2); 1140#L338-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 1215#L348 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1217#L356-1 havoc __utac_acc__Specification5_spec__2_#t~ret33;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1120#L203 __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 1121#L395 assume !(0 != ~pumpRunning~0); 1172#L74 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1173#L132 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1214#L106-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1133#L1021-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1102#L1026-1 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 1103#L252-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1113#L252-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1084#L258-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1085#L110-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1095#L81 havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1230#L1013 __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 1129#L406 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 1093#L406-1 [2021-10-21 19:52:34,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:34,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 19:52:34,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:52:34,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262342408] [2021-10-21 19:52:34,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:34,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:52:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:34,809 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:52:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:34,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:52:34,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:34,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1637117461, now seen corresponding path program 1 times [2021-10-21 19:52:34,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:52:34,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731359160] [2021-10-21 19:52:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:34,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:52:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:52:34,953 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 19:52:34,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:52:34,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731359160] [2021-10-21 19:52:34,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731359160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:52:34,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:52:34,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:52:34,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476128880] [2021-10-21 19:52:34,955 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:52:34,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:52:34,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:52:34,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:52:34,956 INFO L87 Difference]: Start difference. First operand 362 states and 505 transitions. cyclomatic complexity: 146 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:52:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:52:35,163 INFO L93 Difference]: Finished difference Result 1022 states and 1397 transitions. [2021-10-21 19:52:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:52:35,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1022 states and 1397 transitions. [2021-10-21 19:52:35,174 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 671 [2021-10-21 19:52:35,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1022 states to 1022 states and 1397 transitions. [2021-10-21 19:52:35,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1022 [2021-10-21 19:52:35,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1022 [2021-10-21 19:52:35,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1022 states and 1397 transitions. [2021-10-21 19:52:35,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:52:35,190 INFO L681 BuchiCegarLoop]: Abstraction has 1022 states and 1397 transitions. [2021-10-21 19:52:35,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states and 1397 transitions. [2021-10-21 19:52:35,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 717. [2021-10-21 19:52:35,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 717 states have (on average 1.3598326359832635) internal successors, (975), 716 states have internal predecessors, (975), 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 19:52:35,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 975 transitions. [2021-10-21 19:52:35,227 INFO L704 BuchiCegarLoop]: Abstraction has 717 states and 975 transitions. [2021-10-21 19:52:35,227 INFO L587 BuchiCegarLoop]: Abstraction has 717 states and 975 transitions. [2021-10-21 19:52:35,227 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:52:35,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 717 states and 975 transitions. [2021-10-21 19:52:35,233 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 510 [2021-10-21 19:52:35,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:52:35,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:52:35,234 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:35,235 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, 1] [2021-10-21 19:52:35,235 INFO L791 eck$LassoCheckResult]: Stem: 2624#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2534#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 2535#L916 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 2597#L924 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 2530#L880 assume 0 != main_~tmp~10; 2531#L853 ~switchedOnBeforeTS~0 := 0; 2493#L385 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2494#L406-1 [2021-10-21 19:52:35,235 INFO L793 eck$LassoCheckResult]: Loop: 2494#L406-1 assume !false; 2868#L319 assume test_~splverifierCounter~0 < 4; 2866#L320 test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 2863#L328 assume !(0 != test_~tmp~5); 2586#L328-1 test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 2553#L338 assume !(0 != test_~tmp___0~2); 2545#L338-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 2605#L348 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2523#L356-1 havoc __utac_acc__Specification5_spec__2_#t~ret33;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2521#L203 __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 2522#L395 assume !(0 != ~pumpRunning~0); 2581#L74 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2582#L132 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2619#L106-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 2538#L1021-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 2504#L1026-1 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 2505#L252-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 2515#L252-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2485#L258-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 2486#L110-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2496#L81 havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 2627#L1013 __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 2885#L406 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2882#L203-1 __utac_acc__Specification5_spec__3_#t~ret35 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret35;havoc __utac_acc__Specification5_spec__3_#t~ret35; 2880#L410 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2494#L406-1 [2021-10-21 19:52:35,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:35,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-21 19:52:35,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:52:35,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395367531] [2021-10-21 19:52:35,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:35,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:52:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:35,270 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:52:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:35,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:52:35,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:35,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1311860826, now seen corresponding path program 1 times [2021-10-21 19:52:35,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:52:35,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854853329] [2021-10-21 19:52:35,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:35,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:52:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:35,338 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:52:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:35,350 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:52:35,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:35,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1375287008, now seen corresponding path program 1 times [2021-10-21 19:52:35,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:52:35,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916257852] [2021-10-21 19:52:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:35,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:52:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:35,401 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:52:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:52:35,449 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:53:33,974 WARN L207 SmtUtils]: Spent 58.10 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:54:32,880 WARN L207 SmtUtils]: Spent 28.82 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:54:33,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:54:33 BoogieIcfgContainer [2021-10-21 19:54:33,083 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:54:33,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:54:33,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:54:33,084 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:54:33,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:52:33" (3/4) ... [2021-10-21 19:54:33,088 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:54:33,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:54:33,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:54:33,141 INFO L168 Benchmark]: Toolchain (without parser) took 121757.98 ms. Allocated memory was 83.9 MB in the beginning and 136.3 MB in the end (delta: 52.4 MB). Free memory was 45.0 MB in the beginning and 75.0 MB in the end (delta: -30.1 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:33,142 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 83.9 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:54:33,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.53 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 44.8 MB in the beginning and 67.8 MB in the end (delta: -23.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:33,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.02 ms. Allocated memory is still 102.8 MB. Free memory was 67.8 MB in the beginning and 63.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:33,144 INFO L168 Benchmark]: Boogie Preprocessor took 91.29 ms. Allocated memory is still 102.8 MB. Free memory was 63.5 MB in the beginning and 60.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:33,144 INFO L168 Benchmark]: RCFGBuilder took 1137.14 ms. Allocated memory is still 102.8 MB. Free memory was 60.5 MB in the beginning and 62.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:33,145 INFO L168 Benchmark]: BuchiAutomizer took 119788.01 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 62.9 MB in the beginning and 78.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 72.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:33,146 INFO L168 Benchmark]: Witness Printer took 56.56 ms. Allocated memory is still 136.3 MB. Free memory was 78.0 MB in the beginning and 75.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:33,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 83.9 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 577.53 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 44.8 MB in the beginning and 67.8 MB in the end (delta: -23.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.02 ms. Allocated memory is still 102.8 MB. Free memory was 67.8 MB in the beginning and 63.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.29 ms. Allocated memory is still 102.8 MB. Free memory was 63.5 MB in the beginning and 60.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1137.14 ms. Allocated memory is still 102.8 MB. Free memory was 60.5 MB in the beginning and 62.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 119788.01 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 62.9 MB in the beginning and 78.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 72.5 MB. Max. memory is 16.1 GB. * Witness Printer took 56.56 ms. Allocated memory is still 136.3 MB. Free memory was 78.0 MB in the beginning and 75.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 717 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 119.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 118.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 121.2ms AutomataMinimizationTime, 3 MinimizatonAttempts, 307 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 717 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 679 SDtfs, 1007 SDslu, 911 SDs, 0 SdLazy, 145 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 233.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 318]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5775} State at position 1 is {retValue_acc=1, NULL=0, NULL=0, NULL=5800, NULL=0, NULL=5775, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@374d8e22=0, NULL=5796, methaneLevelCritical=0, NULL=5778, NULL=0, tmp=0, NULL=0, retValue_acc=0, NULL=5779, NULL=0, tmp___1=0, NULL=0, NULL=5795, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@710da47c=0, NULL=5787, tmp=1, waterLevel=1, NULL=5798, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54963c9=0, \result=1, head=0, pumpRunning=0, NULL=5803, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5690e9d5=0, NULL=5776, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bcfacf4=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@718001d0=81, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d2ef2f4=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68037628=0, NULL=0, tmp___0=0, NULL=5791, NULL=5799, NULL=5801, tmp=0, head=0, NULL=0, NULL=5793, NULL=5797, retValue_acc=0, NULL=5792, tmp=1, NULL=0, tmp___0=0, NULL=0, NULL=5777, NULL=0, NULL=0, tmp=0, switchedOnBeforeTS=0, \result=0, NULL=0, systemActive=1, \result=1, NULL=5802, NULL=0, NULL=5782, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=5783, NULL=5785, \result=0, tmp___0=0, NULL=5781, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76484c19=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53531771=0, NULL=0, NULL=5780, retValue_acc=1, NULL=5794, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2585c3d4=0, NULL=5784, retValue_acc=1, tmp___2=81, splverifierCounter=0, NULL=0, NULL=0, NULL=5786, retValue_acc=0, NULL=0, NULL=0, NULL=5789, NULL=0, NULL=5790, NULL=5788} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L379] int switchedOnBeforeTS ; [L597] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L794] int cleanupTimeShifts = 4; [L938] int waterLevel = 1; [L939] int methaneLevelCritical = 0; [L871] int retValue_acc ; [L872] int tmp ; [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); [L878] tmp = valid_product() [L880] COND TRUE \read(tmp) [L384] switchedOnBeforeTS = 0 [L309] int splverifierCounter ; [L310] int tmp ; [L311] int tmp___0 ; [L312] int tmp___1 ; [L313] int tmp___2 ; [L316] splverifierCounter = 0 Loop: [L318] COND TRUE 1 [L320] COND TRUE splverifierCounter < 4 [L326] tmp = __VERIFIER_nondet_int() [L328] COND FALSE !(\read(tmp)) [L336] tmp___0 = __VERIFIER_nondet_int() [L338] COND FALSE !(\read(tmp___0)) [L346] tmp___2 = __VERIFIER_nondet_int() [L348] COND TRUE \read(tmp___2) [L300] systemActive = 1 [L199] int retValue_acc ; [L202] retValue_acc = pumpRunning [L203] return (retValue_acc); [L393] switchedOnBeforeTS = isPumpRunning() [L74] COND FALSE !(\read(pumpRunning)) [L81] COND TRUE \read(systemActive) [L129] int tmp ; [L132] COND FALSE !(\read(pumpRunning)) [L103] int tmp ; [L106] COND TRUE ! pumpRunning [L244] int retValue_acc ; [L245] int tmp ; [L246] int tmp___0 ; [L1018] int retValue_acc ; [L1021] COND TRUE waterLevel < 2 [L1022] retValue_acc = 1 [L1023] return (retValue_acc); [L250] tmp = isHighWaterSensorDry() [L252] COND TRUE \read(tmp) [L253] tmp___0 = 0 [L257] retValue_acc = tmp___0 [L258] return (retValue_acc); [L108] tmp = isHighWaterLevel() [L110] COND FALSE !(\read(tmp)) [L399] int tmp ; [L400] int tmp___0 ; [L1009] int retValue_acc ; [L1012] retValue_acc = waterLevel [L1013] return (retValue_acc); [L404] tmp = getWaterLevel() [L406] COND TRUE tmp != 2 [L199] int retValue_acc ; [L202] retValue_acc = pumpRunning [L203] return (retValue_acc); [L408] tmp___0 = isPumpRunning() [L410] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:54:33,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd08724-5830-4c9d-934f-290833fe4b25/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...