./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD --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 6014a53bc4531229002927c7dae6ceb41eaf1bcae6bbbe475b6c1299f7673d0b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-b2eff8b [2021-10-29 00:02:06,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:02:06,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:02:06,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:02:06,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:02:06,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:02:06,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:02:06,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:02:06,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:02:06,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:02:06,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:02:06,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:02:06,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:02:06,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:02:06,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:02:06,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:02:06,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:02:06,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:02:06,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:02:06,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:02:06,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:02:06,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:02:07,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:02:07,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:02:07,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:02:07,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:02:07,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:02:07,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:02:07,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:02:07,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:02:07,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:02:07,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:02:07,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:02:07,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:02:07,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:02:07,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:02:07,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:02:07,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:02:07,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:02:07,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:02:07,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:02:07,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-29 00:02:07,056 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:02:07,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:02:07,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:02:07,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:02:07,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:02:07,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:02:07,058 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:02:07,058 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-29 00:02:07,059 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-29 00:02:07,059 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-29 00:02:07,059 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-29 00:02:07,059 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-29 00:02:07,059 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-29 00:02:07,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:02:07,060 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:02:07,060 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 00:02:07,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:02:07,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:02:07,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:02:07,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-29 00:02:07,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-29 00:02:07,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-29 00:02:07,061 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:02:07,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:02:07,062 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-29 00:02:07,062 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:02:07,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-29 00:02:07,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:02:07,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:02:07,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:02:07,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:02:07,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:02:07,064 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-29 00:02:07,064 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_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6014a53bc4531229002927c7dae6ceb41eaf1bcae6bbbe475b6c1299f7673d0b [2021-10-29 00:02:07,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:02:07,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:02:07,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:02:07,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:02:07,446 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:02:07,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2021-10-29 00:02:07,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/data/ce7508e8e/48fcc75ab1944df6b61e87dc846937f7/FLAGfa74e5dee [2021-10-29 00:02:08,135 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:02:08,138 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2021-10-29 00:02:08,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/data/ce7508e8e/48fcc75ab1944df6b61e87dc846937f7/FLAGfa74e5dee [2021-10-29 00:02:08,394 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/data/ce7508e8e/48fcc75ab1944df6b61e87dc846937f7 [2021-10-29 00:02:08,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:02:08,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:02:08,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:02:08,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:02:08,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:02:08,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:08,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65fb2fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08, skipping insertion in model container [2021-10-29 00:02:08,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:08,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:02:08,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:02:08,708 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_5e6413f9-ec69-44db-b923-0828aef092d5/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c[5104,5117] [2021-10-29 00:02:08,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:02:08,819 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:02:08,884 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_5e6413f9-ec69-44db-b923-0828aef092d5/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c[5104,5117] [2021-10-29 00:02:08,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:02:08,973 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:02:08,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08 WrapperNode [2021-10-29 00:02:08,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:02:08,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:02:08,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:02:08,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:02:08,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:02:09,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:02:09,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:02:09,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:02:09,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:02:09,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:02:09,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:02:09,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:02:09,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (1/1) ... [2021-10-29 00:02:09,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:02:09,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:02:09,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:02:09,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-29 00:02:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:02:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 00:02:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:02:09,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:02:10,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:02:10,314 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-10-29 00:02:10,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:02:10 BoogieIcfgContainer [2021-10-29 00:02:10,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:02:10,322 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-29 00:02:10,322 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-29 00:02:10,327 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-29 00:02:10,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:02:10,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.10 12:02:08" (1/3) ... [2021-10-29 00:02:10,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d68eed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:02:10, skipping insertion in model container [2021-10-29 00:02:10,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:02:10,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:08" (2/3) ... [2021-10-29 00:02:10,332 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d68eed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:02:10, skipping insertion in model container [2021-10-29 00:02:10,332 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:02:10,332 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:02:10" (3/3) ... [2021-10-29 00:02:10,334 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2021-10-29 00:02:10,397 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-29 00:02:10,397 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-29 00:02:10,397 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-29 00:02:10,398 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-29 00:02:10,398 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-29 00:02:10,398 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-29 00:02:10,398 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-29 00:02:10,398 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-29 00:02:10,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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) [2021-10-29 00:02:10,461 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-29 00:02:10,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:02:10,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:02:10,472 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-29 00:02:10,472 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:02:10,472 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-29 00:02:10,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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) [2021-10-29 00:02:10,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-29 00:02:10,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:02:10,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:02:10,494 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-29 00:02:10,494 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:02:10,506 INFO L791 eck$LassoCheckResult]: Stem: 61#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 48#L-1true havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 15#L541true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 54#L549true main_#t~ret31 := valid_product_#res;main_~tmp~4 := main_#t~ret31;havoc main_#t~ret31; 34#L410true assume 0 != main_~tmp~4; 83#L384true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 46#L928-1true [2021-10-29 00:02:10,506 INFO L793 eck$LassoCheckResult]: Loop: 46#L928-1true assume !false; 40#L66true assume test_~splverifierCounter~0 < 4; 58#L67true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 75#L75true assume !(0 != test_~tmp~0); 30#L75-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 45#L85true assume !(0 != test_~tmp___0~0); 62#L85-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 24#L95true assume 0 != test_~tmp___2~0; 25#L101-1true assume !(0 != ~pumpRunning~0); 79#L138true assume !(0 != ~systemActive~0); 71#L145true havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 57#L500true __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 82#L928true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 46#L928-1true [2021-10-29 00:02:10,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:10,513 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-29 00:02:10,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:02:10,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063277094] [2021-10-29 00:02:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:10,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:02:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:10,786 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:02:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:10,982 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:02:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:11,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1672602485, now seen corresponding path program 1 times [2021-10-29 00:02:11,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:02:11,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417611143] [2021-10-29 00:02:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:11,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:02:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:11,016 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:02:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:11,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:02:11,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:11,046 INFO L85 PathProgramCache]: Analyzing trace with hash 41676453, now seen corresponding path program 1 times [2021-10-29 00:02:11,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:02:11,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28600783] [2021-10-29 00:02:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:11,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:02:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:11,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:11,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:02:11,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28600783] [2021-10-29 00:02:11,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28600783] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:11,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:11,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:02:11,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996171914] [2021-10-29 00:02:11,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:02:11,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:02:11,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:02:11,424 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:02:11,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:11,788 INFO L93 Difference]: Finished difference Result 216 states and 300 transitions. [2021-10-29 00:02:11,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:02:11,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 300 transitions. [2021-10-29 00:02:11,804 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 137 [2021-10-29 00:02:11,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 195 states and 279 transitions. [2021-10-29 00:02:11,815 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2021-10-29 00:02:11,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2021-10-29 00:02:11,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 279 transitions. [2021-10-29 00:02:11,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:02:11,822 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 279 transitions. [2021-10-29 00:02:11,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 279 transitions. [2021-10-29 00:02:11,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 120. [2021-10-29 00:02:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.425) internal successors, (171), 119 states have internal predecessors, (171), 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) [2021-10-29 00:02:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2021-10-29 00:02:11,862 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-10-29 00:02:11,863 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-10-29 00:02:11,872 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-29 00:02:11,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2021-10-29 00:02:11,875 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2021-10-29 00:02:11,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:02:11,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:02:11,876 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-29 00:02:11,876 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:02:11,877 INFO L791 eck$LassoCheckResult]: Stem: 391#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 383#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 337#L541 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 338#L549 main_#t~ret31 := valid_product_#res;main_~tmp~4 := main_#t~ret31;havoc main_#t~ret31; 366#L410 assume 0 != main_~tmp~4; 367#L384 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 341#L928-1 [2021-10-29 00:02:11,877 INFO L793 eck$LassoCheckResult]: Loop: 341#L928-1 assume !false; 374#L66 assume test_~splverifierCounter~0 < 4; 375#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 388#L75 assume !(0 != test_~tmp~0); 360#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 361#L85 assume !(0 != test_~tmp___0~0); 321#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 352#L95 assume 0 != test_~tmp___2~0; 353#L101-1 assume !(0 != ~pumpRunning~0); 356#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 399#L170 assume !(0 == ~pumpRunning~0); 325#L145 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 386#L500 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 387#L928 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 341#L928-1 [2021-10-29 00:02:11,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:11,878 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-29 00:02:11,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:02:11,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652788459] [2021-10-29 00:02:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:11,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:02:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:11,961 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:02:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:12,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:02:12,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:12,094 INFO L85 PathProgramCache]: Analyzing trace with hash -352838725, now seen corresponding path program 1 times [2021-10-29 00:02:12,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:02:12,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916656586] [2021-10-29 00:02:12,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:12,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:02:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:12,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:02:12,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916656586] [2021-10-29 00:02:12,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916656586] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:12,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:12,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:02:12,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124613496] [2021-10-29 00:02:12,126 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-29 00:02:12,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:02:12,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:02:12,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:02:12,128 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-29 00:02:12,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:12,198 INFO L93 Difference]: Finished difference Result 159 states and 214 transitions. [2021-10-29 00:02:12,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:02:12,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 214 transitions. [2021-10-29 00:02:12,202 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-10-29 00:02:12,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 214 transitions. [2021-10-29 00:02:12,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2021-10-29 00:02:12,208 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2021-10-29 00:02:12,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 214 transitions. [2021-10-29 00:02:12,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:02:12,213 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2021-10-29 00:02:12,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 214 transitions. [2021-10-29 00:02:12,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-10-29 00:02:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.3459119496855345) internal successors, (214), 158 states have internal predecessors, (214), 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) [2021-10-29 00:02:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2021-10-29 00:02:12,234 INFO L704 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2021-10-29 00:02:12,235 INFO L587 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2021-10-29 00:02:12,235 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-29 00:02:12,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 214 transitions. [2021-10-29 00:02:12,237 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-10-29 00:02:12,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:02:12,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:02:12,239 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-29 00:02:12,239 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] [2021-10-29 00:02:12,239 INFO L791 eck$LassoCheckResult]: Stem: 682#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 673#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 624#L541 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 625#L549 main_#t~ret31 := valid_product_#res;main_~tmp~4 := main_#t~ret31;havoc main_#t~ret31; 657#L410 assume 0 != main_~tmp~4; 658#L384 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 695#L928-1 [2021-10-29 00:02:12,240 INFO L793 eck$LassoCheckResult]: Loop: 695#L928-1 assume !false; 742#L66 assume test_~splverifierCounter~0 < 4; 741#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 740#L75 assume !(0 != test_~tmp~0); 738#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 737#L85 assume !(0 != test_~tmp___0~0); 683#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 641#L95 assume 0 != test_~tmp___2~0; 642#L101-1 assume !(0 != ~pumpRunning~0); 644#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 694#L170 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 660#L508 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 653#L513 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 654#L290 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 670#L290-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 671#L296 processEnvironment_#t~ret11 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret11;havoc processEnvironment_#t~ret11; 686#L174 assume !(0 != processEnvironment_~tmp~1); 610#L145 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 746#L500 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 744#L928 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 695#L928-1 [2021-10-29 00:02:12,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:12,241 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-29 00:02:12,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:02:12,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678317457] [2021-10-29 00:02:12,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:12,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:02:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:12,308 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:02:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:12,395 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:02:12,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:12,401 INFO L85 PathProgramCache]: Analyzing trace with hash -539212889, now seen corresponding path program 1 times [2021-10-29 00:02:12,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:02:12,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489546622] [2021-10-29 00:02:12,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:12,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:02:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:12,408 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:02:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:12,419 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:02:12,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:12,420 INFO L85 PathProgramCache]: Analyzing trace with hash -524500915, now seen corresponding path program 1 times [2021-10-29 00:02:12,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:02:12,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972640490] [2021-10-29 00:02:12,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:12,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:02:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:12,466 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:02:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:12,526 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:10,972 WARN L207 SmtUtils]: Spent 58.15 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-29 00:04:11,656 WARN L207 SmtUtils]: Spent 28.97 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-29 00:04:11,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.10 12:04:11 BoogieIcfgContainer [2021-10-29 00:04:11,831 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-29 00:04:11,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:04:11,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:04:11,832 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:04:11,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:02:10" (3/4) ... [2021-10-29 00:04:11,835 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-29 00:04:11,886 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:04:11,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:04:11,888 INFO L168 Benchmark]: Toolchain (without parser) took 123488.53 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 66.5 MB in the beginning and 104.8 MB in the end (delta: -38.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:11,888 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 84.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:04:11,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.97 ms. Allocated memory is still 109.1 MB. Free memory was 66.3 MB in the beginning and 74.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:11,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.86 ms. Allocated memory is still 109.1 MB. Free memory was 74.3 MB in the beginning and 71.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:11,889 INFO L168 Benchmark]: Boogie Preprocessor took 78.28 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 68.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:11,890 INFO L168 Benchmark]: RCFGBuilder took 1170.92 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 68.7 MB in the beginning and 100.2 MB in the end (delta: -31.5 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:11,891 INFO L168 Benchmark]: BuchiAutomizer took 121509.59 ms. Allocated memory was 132.1 MB in the beginning and 161.5 MB in the end (delta: 29.4 MB). Free memory was 99.4 MB in the beginning and 108.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 101.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:11,891 INFO L168 Benchmark]: Witness Printer took 54.66 ms. Allocated memory is still 161.5 MB. Free memory was 108.0 MB in the beginning and 104.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:11,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 84.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 573.97 ms. Allocated memory is still 109.1 MB. Free memory was 66.3 MB in the beginning and 74.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.86 ms. Allocated memory is still 109.1 MB. Free memory was 74.3 MB in the beginning and 71.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.28 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 68.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1170.92 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 68.7 MB in the beginning and 100.2 MB in the end (delta: -31.5 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 121509.59 ms. Allocated memory was 132.1 MB in the beginning and 161.5 MB in the end (delta: 29.4 MB). Free memory was 99.4 MB in the beginning and 108.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 101.9 MB. Max. memory is 16.1 GB. * Witness Printer took 54.66 ms. Allocated memory is still 161.5 MB. Free memory was 108.0 MB in the beginning and 104.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 121.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 120.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 159 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 227 SDtfs, 641 SDslu, 563 SDs, 0 SdLazy, 60 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22170} State at position 1 is {NULL=22191, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@337aaee1=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22cf9093=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a4ba64c=0, NULL=22170, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13aafe3d=0, retValue_acc=0, NULL=22175, NULL=0, NULL=0, NULL=22184, NULL=22171, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ac4fe8=0, NULL=22179, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64d831fe=0, NULL=22190, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f64380f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c471e6b=0, NULL=0, NULL=22178, NULL=22197, retValue_acc=0, NULL=0, tmp___1=0, NULL=22187, NULL=22193, NULL=0, NULL=0, NULL=22189, cleanupTimeShifts=4, tmp=0, NULL=22192, tmp___0=0, NULL=22196, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, \result=0, tmp___0=0, NULL=22176, \result=1, head=0, pumpRunning=0, \result=0, retValue_acc=1, NULL=22188, NULL=22172, tmp=1, NULL=0, NULL=22173, NULL=0, NULL=0, NULL=0, NULL=0, NULL=22181, NULL=0, \result=1, NULL=22186, NULL=0, retValue_acc=1, NULL=0, tmp=1, NULL=22182, NULL=0, NULL=0, NULL=22174, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@568c11df=0, tmp=1, tmp___2=68, NULL=0, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=22180, NULL=22177, NULL=22183, tmp=0, head=0, NULL=22195, NULL=22194, NULL=0, NULL=0, NULL=22185, NULL=22198} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L325] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L723] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L401] int retValue_acc ; [L402] int tmp ; [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); [L408] tmp = valid_product() [L410] COND TRUE \read(tmp) [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L167] int tmp ; [L170] COND TRUE ! pumpRunning [L282] int retValue_acc ; [L283] int tmp ; [L284] int tmp___0 ; [L505] int retValue_acc ; [L508] COND TRUE waterLevel < 2 [L509] retValue_acc = 1 [L510] return (retValue_acc); [L288] tmp = isHighWaterSensorDry() [L290] COND TRUE \read(tmp) [L291] tmp___0 = 0 [L295] retValue_acc = tmp___0 [L296] return (retValue_acc); [L172] tmp = isHighWaterLevel() [L174] COND FALSE !(\read(tmp)) [L921] int tmp ; [L922] int tmp___0 ; [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); [L926] tmp = getWaterLevel() [L928] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 00:04:11,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6413f9-ec69-44db-b923-0828aef092d5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...