./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y --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 750fa47004e8b71818a419cd0705c167dc764081be79a2bed3ff642b9979f0ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:05:28,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:05:28,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:05:28,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:05:28,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:05:28,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:05:28,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:05:28,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:05:28,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:05:28,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:05:28,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:05:28,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:05:28,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:05:28,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:05:28,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:05:28,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:05:28,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:05:28,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:05:28,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:05:28,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:05:28,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:05:28,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:05:28,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:05:28,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:05:28,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:05:28,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:05:28,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:05:28,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:05:28,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:05:28,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:05:28,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:05:28,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:05:28,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:05:28,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:05:28,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:05:28,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:05:28,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:05:28,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:05:28,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:05:28,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:05:28,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:05:28,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:05:28,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:05:28,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:05:28,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:05:28,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:05:28,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:05:28,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:05:28,235 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:05:28,236 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:05:28,236 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:05:28,236 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:05:28,238 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:05:28,238 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:05:28,238 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:05:28,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:05:28,239 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:05:28,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:05:28,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:05:28,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:05:28,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:05:28,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:05:28,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:05:28,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:05:28,241 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:05:28,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:05:28,241 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:05:28,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:05:28,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:05:28,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:05:28,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:05:28,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:05:28,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:05:28,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:05:28,245 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:05:28,245 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_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 750fa47004e8b71818a419cd0705c167dc764081be79a2bed3ff642b9979f0ab [2021-11-13 18:05:28,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:05:28,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:05:28,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:05:28,662 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:05:28,664 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:05:28,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2021-11-13 18:05:28,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/data/b66099011/fac093320491402e95931eae9b6beb76/FLAG68f2ec4f3 [2021-11-13 18:05:29,284 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:05:29,285 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2021-11-13 18:05:29,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/data/b66099011/fac093320491402e95931eae9b6beb76/FLAG68f2ec4f3 [2021-11-13 18:05:29,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/data/b66099011/fac093320491402e95931eae9b6beb76 [2021-11-13 18:05:29,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:05:29,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:05:29,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:05:29,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:05:29,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:05:29,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:05:29" (1/1) ... [2021-11-13 18:05:29,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398c6068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:29, skipping insertion in model container [2021-11-13 18:05:29,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:05:29" (1/1) ... [2021-11-13 18:05:29,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:05:29,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:05:30,070 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_57311e70-9bf1-4770-94f6-df3fc537236d/sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c[16171,16184] [2021-11-13 18:05:30,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:05:30,097 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:05:30,184 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_57311e70-9bf1-4770-94f6-df3fc537236d/sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c[16171,16184] [2021-11-13 18:05:30,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:05:30,229 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:05:30,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30 WrapperNode [2021-11-13 18:05:30,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:05:30,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:05:30,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:05:30,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:05:30,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:05:30,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:05:30,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:05:30,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:05:30,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:05:30,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:05:30,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:05:30,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:05:30,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (1/1) ... [2021-11-13 18:05:30,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:05:30,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:30,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:30,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:05:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:05:30,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:05:30,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:05:30,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:05:31,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:05:31,665 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:05:31,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:05:31 BoogieIcfgContainer [2021-11-13 18:05:31,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:05:31,669 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:05:31,670 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:05:31,675 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:05:31,676 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:05:31,676 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:05:29" (1/3) ... [2021-11-13 18:05:31,697 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@765390b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:05:31, skipping insertion in model container [2021-11-13 18:05:31,698 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:05:31,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:30" (2/3) ... [2021-11-13 18:05:31,698 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@765390b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:05:31, skipping insertion in model container [2021-11-13 18:05:31,698 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:05:31,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:05:31" (3/3) ... [2021-11-13 18:05:31,700 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2021-11-13 18:05:31,765 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:05:31,765 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:05:31,765 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:05:31,766 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:05:31,766 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:05:31,766 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:05:31,766 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:05:31,766 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:05:31,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 112 states, 111 states have (on average 1.3873873873873874) internal successors, (154), 111 states have internal predecessors, (154), 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) [2021-11-13 18:05:31,824 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-11-13 18:05:31,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:05:31,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:05:31,835 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:31,835 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:31,836 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:05:31,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 112 states, 111 states have (on average 1.3873873873873874) internal successors, (154), 111 states have internal predecessors, (154), 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) [2021-11-13 18:05:31,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-11-13 18:05:31,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:05:31,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:05:31,848 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:31,848 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:31,855 INFO L791 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);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(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 39#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret11#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 99#L917true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 18#L910true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 70#L925true main_#t~ret11#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret11#1;havoc main_#t~ret11#1; 96#L208true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 92#L182true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 38#L65-2true [2021-11-13 18:05:31,856 INFO L793 eck$LassoCheckResult]: Loop: 38#L65-2true assume !false; 36#L66true assume test_~splverifierCounter~0#1 < 4; 104#L67true test_~tmp~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 53#L75true assume !(0 != test_~tmp~0#1); 102#L75-2true test_~tmp___0~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 37#L85true assume !(0 != test_~tmp___0~0#1); 5#L85-2true test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 76#L95true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 103#L103true assume 0 != test_~tmp___1~0#1; 85#L103-2true assume { :begin_inline_timeShift } true; 94#L237true assume !(0 != ~pumpRunning~0); 41#L237-2true assume !(0 != ~systemActive~0); 30#L244-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret66#1, __utac_acc__Specification3_spec__1_#t~ret67#1, __utac_acc__Specification3_spec__1_#t~ret68#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 65#L844true __utac_acc__Specification3_spec__1_#t~ret66#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret66#1;havoc __utac_acc__Specification3_spec__1_#t~ret66#1; 98#L767true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 109#L773-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 49#L254true assume { :end_inline_timeShift } true; 38#L65-2true [2021-11-13 18:05:31,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:31,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-13 18:05:31,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:31,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565716708] [2021-11-13 18:05:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:31,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:32,206 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:32,392 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:32,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:32,396 INFO L85 PathProgramCache]: Analyzing trace with hash 61741460, now seen corresponding path program 1 times [2021-11-13 18:05:32,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:32,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135539549] [2021-11-13 18:05:32,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:32,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:32,422 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:32,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:32,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:32,457 INFO L85 PathProgramCache]: Analyzing trace with hash -869940144, now seen corresponding path program 1 times [2021-11-13 18:05:32,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:32,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849498555] [2021-11-13 18:05:32,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:32,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:32,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:05:32,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849498555] [2021-11-13 18:05:32,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849498555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:05:32,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:05:32,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:05:32,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656897067] [2021-11-13 18:05:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:05:32,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:05:33,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:05:33,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:05:33,014 INFO L87 Difference]: Start difference. First operand has 112 states, 111 states have (on average 1.3873873873873874) internal successors, (154), 111 states have internal predecessors, (154), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-11-13 18:05:33,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:05:33,345 INFO L93 Difference]: Finished difference Result 109 states and 140 transitions. [2021-11-13 18:05:33,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:05:33,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 140 transitions. [2021-11-13 18:05:33,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-11-13 18:05:33,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 99 states and 130 transitions. [2021-11-13 18:05:33,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2021-11-13 18:05:33,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2021-11-13 18:05:33,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 130 transitions. [2021-11-13 18:05:33,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:05:33,384 INFO L681 BuchiCegarLoop]: Abstraction has 99 states and 130 transitions. [2021-11-13 18:05:33,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 130 transitions. [2021-11-13 18:05:33,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-13 18:05:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.3131313131313131) internal successors, (130), 98 states have internal predecessors, (130), 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) [2021-11-13 18:05:33,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 130 transitions. [2021-11-13 18:05:33,418 INFO L704 BuchiCegarLoop]: Abstraction has 99 states and 130 transitions. [2021-11-13 18:05:33,419 INFO L587 BuchiCegarLoop]: Abstraction has 99 states and 130 transitions. [2021-11-13 18:05:33,419 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:05:33,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 130 transitions. [2021-11-13 18:05:33,422 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-11-13 18:05:33,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:05:33,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:05:33,423 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:33,424 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] [2021-11-13 18:05:33,424 INFO L791 eck$LassoCheckResult]: Stem: 336#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);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(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 293#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret11#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 294#L917 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 265#L910 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 266#L925 main_#t~ret11#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret11#1;havoc main_#t~ret11#1; 326#L208 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 334#L182 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 292#L65-2 [2021-11-13 18:05:33,424 INFO L793 eck$LassoCheckResult]: Loop: 292#L65-2 assume !false; 287#L66 assume test_~splverifierCounter~0#1 < 4; 288#L67 test_~tmp~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 313#L75 assume !(0 != test_~tmp~0#1); 314#L75-2 test_~tmp___0~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 290#L85 assume !(0 != test_~tmp___0~0#1); 241#L85-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 242#L95 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 323#L386 assume { :end_inline_startSystem } true; 324#L103-2 assume { :begin_inline_timeShift } true; 332#L237 assume !(0 != ~pumpRunning~0); 297#L237-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 298#L269 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 319#L261-1 assume { :end_inline_processEnvironment__wrappee__base } true; 248#L269-1 assume { :end_inline_processEnvironment } true; 283#L244-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret66#1, __utac_acc__Specification3_spec__1_#t~ret67#1, __utac_acc__Specification3_spec__1_#t~ret68#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 284#L844 __utac_acc__Specification3_spec__1_#t~ret66#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret66#1;havoc __utac_acc__Specification3_spec__1_#t~ret66#1; 321#L767 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 278#L773-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 310#L254 assume { :end_inline_timeShift } true; 292#L65-2 [2021-11-13 18:05:33,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:33,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-13 18:05:33,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:33,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941196004] [2021-11-13 18:05:33,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:33,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:33,530 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:33,645 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:33,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:33,654 INFO L85 PathProgramCache]: Analyzing trace with hash -897338790, now seen corresponding path program 1 times [2021-11-13 18:05:33,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:33,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240882926] [2021-11-13 18:05:33,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:33,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:33,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:33,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:05:33,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240882926] [2021-11-13 18:05:33,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240882926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:05:33,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:05:33,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:05:33,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558010171] [2021-11-13 18:05:33,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:05:33,698 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-13 18:05:33,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:05:33,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:05:33,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:05:33,701 INFO L87 Difference]: Start difference. First operand 99 states and 130 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-13 18:05:33,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:05:33,789 INFO L93 Difference]: Finished difference Result 158 states and 202 transitions. [2021-11-13 18:05:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:05:33,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 202 transitions. [2021-11-13 18:05:33,804 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2021-11-13 18:05:33,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 158 states and 202 transitions. [2021-11-13 18:05:33,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 158 [2021-11-13 18:05:33,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 158 [2021-11-13 18:05:33,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 202 transitions. [2021-11-13 18:05:33,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:05:33,818 INFO L681 BuchiCegarLoop]: Abstraction has 158 states and 202 transitions. [2021-11-13 18:05:33,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 202 transitions. [2021-11-13 18:05:33,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-11-13 18:05:33,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 158 states have (on average 1.2784810126582278) internal successors, (202), 157 states have internal predecessors, (202), 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) [2021-11-13 18:05:33,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 202 transitions. [2021-11-13 18:05:33,840 INFO L704 BuchiCegarLoop]: Abstraction has 158 states and 202 transitions. [2021-11-13 18:05:33,840 INFO L587 BuchiCegarLoop]: Abstraction has 158 states and 202 transitions. [2021-11-13 18:05:33,840 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 18:05:33,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states and 202 transitions. [2021-11-13 18:05:33,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2021-11-13 18:05:33,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:05:33,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:05:33,846 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:33,846 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, 1] [2021-11-13 18:05:33,847 INFO L791 eck$LassoCheckResult]: Stem: 609#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);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(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 557#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret11#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 558#L917 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 528#L910 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 529#L925 main_#t~ret11#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret11#1;havoc main_#t~ret11#1; 593#L208 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 606#L182 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 556#L65-2 [2021-11-13 18:05:33,855 INFO L793 eck$LassoCheckResult]: Loop: 556#L65-2 assume !false; 551#L66 assume test_~splverifierCounter~0#1 < 4; 552#L67 test_~tmp~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 658#L75 assume !(0 != test_~tmp~0#1); 656#L75-2 test_~tmp___0~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 654#L85 assume !(0 != test_~tmp___0~0#1); 504#L85-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 505#L95 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 596#L103 assume 0 != test_~tmp___1~0#1; 591#L103-2 assume { :begin_inline_timeShift } true; 600#L237 assume !(0 != ~pumpRunning~0); 561#L237-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 562#L269 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret30#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 542#L884 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 517#L889 isHighWaterLevel_#t~ret30#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret30#1;havoc isHighWaterLevel_#t~ret30#1; 518#L371 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 563#L371-2 isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1; 564#L377 processEnvironment_#t~ret12#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret12#1;havoc processEnvironment_#t~ret12#1; 581#L273 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 582#L261 assume { :end_inline_processEnvironment__wrappee__base } true; 611#L269-1 assume { :end_inline_processEnvironment } true; 546#L244-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret66#1, __utac_acc__Specification3_spec__1_#t~ret67#1, __utac_acc__Specification3_spec__1_#t~ret68#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 547#L844 __utac_acc__Specification3_spec__1_#t~ret66#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret66#1;havoc __utac_acc__Specification3_spec__1_#t~ret66#1; 587#L767 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 541#L773-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 575#L254 assume { :end_inline_timeShift } true; 556#L65-2 [2021-11-13 18:05:33,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:33,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-11-13 18:05:33,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:33,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311041096] [2021-11-13 18:05:33,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:33,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:33,939 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:34,042 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:34,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:34,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1606759487, now seen corresponding path program 1 times [2021-11-13 18:05:34,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:34,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452866224] [2021-11-13 18:05:34,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:34,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:34,064 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:34,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:34,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:34,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1733200763, now seen corresponding path program 1 times [2021-11-13 18:05:34,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:34,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951639999] [2021-11-13 18:05:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:34,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:34,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:05:34,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:05:34,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951639999] [2021-11-13 18:05:34,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951639999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:05:34,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:05:34,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:05:34,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119666616] [2021-11-13 18:05:34,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:05:34,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:05:34,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:05:34,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:05:34,535 INFO L87 Difference]: Start difference. First operand 158 states and 202 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-11-13 18:05:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:05:34,657 INFO L93 Difference]: Finished difference Result 546 states and 695 transitions. [2021-11-13 18:05:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:05:34,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 546 states and 695 transitions. [2021-11-13 18:05:34,664 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 409 [2021-11-13 18:05:34,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 546 states to 546 states and 695 transitions. [2021-11-13 18:05:34,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 546 [2021-11-13 18:05:34,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 546 [2021-11-13 18:05:34,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 546 states and 695 transitions. [2021-11-13 18:05:34,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:05:34,675 INFO L681 BuchiCegarLoop]: Abstraction has 546 states and 695 transitions. [2021-11-13 18:05:34,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states and 695 transitions. [2021-11-13 18:05:34,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 309. [2021-11-13 18:05:34,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.2588996763754046) internal successors, (389), 308 states have internal predecessors, (389), 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) [2021-11-13 18:05:34,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 389 transitions. [2021-11-13 18:05:34,698 INFO L704 BuchiCegarLoop]: Abstraction has 309 states and 389 transitions. [2021-11-13 18:05:34,698 INFO L587 BuchiCegarLoop]: Abstraction has 309 states and 389 transitions. [2021-11-13 18:05:34,698 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-13 18:05:34,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 389 transitions. [2021-11-13 18:05:34,701 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 224 [2021-11-13 18:05:34,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:05:34,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:05:34,702 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:34,702 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, 1, 1, 1] [2021-11-13 18:05:34,703 INFO L791 eck$LassoCheckResult]: Stem: 1343#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);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(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1279#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret11#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1280#L917 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1249#L910 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1250#L925 main_#t~ret11#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret11#1;havoc main_#t~ret11#1; 1318#L208 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1338#L182 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1339#L65-2 [2021-11-13 18:05:34,703 INFO L793 eck$LassoCheckResult]: Loop: 1339#L65-2 assume !false; 1481#L66 assume test_~splverifierCounter~0#1 < 4; 1342#L67 test_~tmp~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1304#L75 assume !(0 != test_~tmp~0#1); 1305#L75-2 test_~tmp___0~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1276#L85 assume !(0 != test_~tmp___0~0#1); 1226#L85-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1227#L95 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1316#L386 assume { :end_inline_startSystem } true; 1317#L103-2 assume { :begin_inline_timeShift } true; 1329#L237 assume !(0 != ~pumpRunning~0); 1499#L237-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1520#L269 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret30#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 1485#L884 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 1238#L889 isHighWaterLevel_#t~ret30#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret30#1;havoc isHighWaterLevel_#t~ret30#1; 1239#L371 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1488#L371-2 isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1; 1487#L377 processEnvironment_#t~ret12#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret12#1;havoc processEnvironment_#t~ret12#1; 1486#L273 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1347#L261 assume { :end_inline_processEnvironment__wrappee__base } true; 1331#L269-1 assume { :end_inline_processEnvironment } true; 1268#L244-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret66#1, __utac_acc__Specification3_spec__1_#t~ret67#1, __utac_acc__Specification3_spec__1_#t~ret68#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1269#L844 __utac_acc__Specification3_spec__1_#t~ret66#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret66#1;havoc __utac_acc__Specification3_spec__1_#t~ret66#1; 1341#L767 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 1326#L876 __utac_acc__Specification3_spec__1_#t~ret67#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret67#1;havoc __utac_acc__Specification3_spec__1_#t~ret67#1; 1327#L773 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1483#L773-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1482#L254 assume { :end_inline_timeShift } true; 1339#L65-2 [2021-11-13 18:05:34,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:34,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-11-13 18:05:34,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:34,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414266601] [2021-11-13 18:05:34,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:34,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:34,739 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:34,782 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:34,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:34,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1002638731, now seen corresponding path program 1 times [2021-11-13 18:05:34,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:34,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713692951] [2021-11-13 18:05:34,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:34,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:34,790 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:34,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:05:34,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:34,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2041346617, now seen corresponding path program 1 times [2021-11-13 18:05:34,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:34,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981247706] [2021-11-13 18:05:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:34,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:34,839 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:05:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:05:34,893 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:06:39,767 WARN L227 SmtUtils]: Spent 1.07m on a formula simplification. DAG size of input: 491 DAG size of output: 433 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:07:44,588 WARN L227 SmtUtils]: Spent 31.09s on a formula simplification that was a NOOP. DAG size: 433 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:07:44,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:07:44 BoogieIcfgContainer [2021-11-13 18:07:44,723 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:07:44,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:07:44,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:07:44,724 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:07:44,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:05:31" (3/4) ... [2021-11-13 18:07:44,727 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-13 18:07:44,787 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:07:44,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:07:44,788 INFO L158 Benchmark]: Toolchain (without parser) took 135176.25ms. Allocated memory was 96.5MB in the beginning and 159.4MB in the end (delta: 62.9MB). Free memory was 59.0MB in the beginning and 103.7MB in the end (delta: -44.7MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-13 18:07:44,788 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:07:44,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.62ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 58.8MB in the beginning and 93.6MB in the end (delta: -34.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 18:07:44,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.27ms. Allocated memory is still 125.8MB. Free memory was 93.1MB in the beginning and 90.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:07:44,790 INFO L158 Benchmark]: Boogie Preprocessor took 85.27ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 88.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:07:44,791 INFO L158 Benchmark]: RCFGBuilder took 1226.26ms. Allocated memory is still 125.8MB. Free memory was 88.4MB in the beginning and 100.0MB in the end (delta: -11.6MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2021-11-13 18:07:44,791 INFO L158 Benchmark]: BuchiAutomizer took 133053.94ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 99.3MB in the beginning and 106.7MB in the end (delta: -7.4MB). Peak memory consumption was 102.6MB. Max. memory is 16.1GB. [2021-11-13 18:07:44,792 INFO L158 Benchmark]: Witness Printer took 63.44ms. Allocated memory is still 159.4MB. Free memory was 106.7MB in the beginning and 103.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:07:44,794 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.62ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 58.8MB in the beginning and 93.6MB in the end (delta: -34.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.27ms. Allocated memory is still 125.8MB. Free memory was 93.1MB in the beginning and 90.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.27ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 88.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1226.26ms. Allocated memory is still 125.8MB. Free memory was 88.4MB in the beginning and 100.0MB in the end (delta: -11.6MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 133053.94ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 99.3MB in the beginning and 106.7MB in the end (delta: -7.4MB). Peak memory consumption was 102.6MB. Max. memory is 16.1GB. * Witness Printer took 63.44ms. Allocated memory is still 159.4MB. Free memory was 106.7MB in the beginning and 103.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 6 locations. The remainder module has 309 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 132.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 132.0s. Construction of modules took 0.3s. 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 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 237 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 309 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 979 SdHoareTripleChecker+Valid, 366.84ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 979 mSDsluCounter, 1153 SdHoareTripleChecker+Invalid, 320.64ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 685 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 468 mSDtfsCounter, 74 mSolverCounterSat, 20.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bca7cf6=0, NULL=0, NULL=0, tmp___0=0, NULL=1, NULL=0, methaneLevelCritical=0, tmp=0, NULL=9771, NULL=9773, NULL=0, tmp___2=54, tmp___1=0, cleanupTimeShifts=4, \result=0, tmp=1, tmp=0, NULL=9754, NULL=0, NULL=0, \result=1, waterLevel=1, NULL=9768, \result=0, NULL=0, NULL=9756, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38521173=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33c44cb3=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2248f6fc=0, NULL=9770, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39fcd664=0, NULL=0, \result=0, NULL=9767, NULL=0, retValue_acc=1, \result=1, NULL=0, NULL=0, NULL=9749, NULL=9757, head=0, NULL=9772, NULL=9751, splverifierCounter=0, NULL=9746, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@787b0bbb=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29977782=0, NULL=9755, retValue_acc=1, NULL=9747, retValue_acc=0, NULL=9748, NULL=0, tmp=0, NULL=9758, NULL=9760, NULL=9766, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=0, systemActive=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9752, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18b54aa9=0, NULL=9763, NULL=9764, retValue_acc=0, NULL=9761, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5175f38c=54, NULL=0, NULL=0, retValue_acc=1, tmp___0=1, \result=1, NULL=9750, tmp=1, NULL=0, NULL=0, NULL=9753, NULL=9769, NULL=9759, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62bff098=0, NULL=9765, NULL=9762, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L559] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L801] int waterLevel = 1; [L802] int methaneLevelCritical = 0; [L199] int retValue_acc ; [L200] int tmp ; [L204] FCALL select_helpers() [L205] FCALL select_features() [L206] CALL, EXPR valid_product() [L921] int retValue_acc ; [L924] retValue_acc = 1 [L925] return (retValue_acc); [L206] RET, EXPR valid_product() [L206] tmp = valid_product() [L208] COND TRUE \read(tmp) [L210] FCALL setup() [L211] CALL runTest() [L190] CALL test() [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) [L97] CALL startSystem() [L385] systemActive = 1 [L97] RET startSystem() [L110] CALL timeShift() [L237] COND FALSE !(\read(pumpRunning)) [L244] COND TRUE \read(systemActive) [L246] CALL processEnvironment() [L266] int tmp ; [L269] COND TRUE ! pumpRunning [L271] CALL, EXPR isHighWaterLevel() [L363] int retValue_acc ; [L364] int tmp ; [L365] int tmp___0 ; [L369] CALL, EXPR isHighWaterSensorDry() [L881] int retValue_acc ; [L884] COND TRUE waterLevel < 2 [L885] retValue_acc = 1 [L886] return (retValue_acc); [L369] RET, EXPR isHighWaterSensorDry() [L369] tmp = isHighWaterSensorDry() [L371] COND TRUE \read(tmp) [L372] tmp___0 = 0 [L376] retValue_acc = tmp___0 [L377] return (retValue_acc); [L271] RET, EXPR isHighWaterLevel() [L271] tmp = isHighWaterLevel() [L273] COND FALSE !(\read(tmp)) [L279] FCALL processEnvironment__wrappee__base() [L246] RET processEnvironment() [L252] CALL __utac_acc__Specification3_spec__1() [L759] int tmp ; [L760] int tmp___0 ; [L761] int tmp___1 ; [L765] CALL, EXPR isMethaneLevelCritical() [L840] int retValue_acc ; [L843] retValue_acc = methaneLevelCritical [L844] return (retValue_acc); [L765] RET, EXPR isMethaneLevelCritical() [L765] tmp = isMethaneLevelCritical() [L767] COND FALSE !(\read(tmp)) [L771] CALL, EXPR getWaterLevel() [L872] int retValue_acc ; [L875] retValue_acc = waterLevel [L876] return (retValue_acc); [L771] RET, EXPR getWaterLevel() [L771] tmp___0 = getWaterLevel() [L773] COND FALSE !(tmp___0 == 2) [L252] RET __utac_acc__Specification3_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 18:07:44,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57311e70-9bf1-4770-94f6-df3fc537236d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)