./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8 --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 27746ab44f558a6ebb6981088914ebe56dec54e6e61aba8484d841196c9545ea --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:18:04,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:18:04,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:18:04,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:18:04,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:18:04,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:18:04,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:18:04,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:18:04,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:18:04,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:18:04,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:18:04,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:18:04,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:18:04,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:18:04,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:18:04,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:18:04,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:18:04,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:18:04,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:18:04,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:18:04,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:18:04,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:18:04,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:18:04,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:18:04,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:18:04,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:18:04,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:18:04,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:18:04,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:18:04,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:18:04,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:18:04,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:18:04,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:18:04,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:18:04,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:18:04,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:18:04,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:18:04,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:18:04,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:18:04,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:18:04,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:18:04,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 11:18:04,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:18:04,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:18:04,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:18:04,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:18:04,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:18:04,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:18:04,307 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:18:04,308 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:18:04,308 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:18:04,308 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:18:04,308 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:18:04,308 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:18:04,309 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:18:04,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:18:04,309 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:18:04,309 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:18:04,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:18:04,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:18:04,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:18:04,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:18:04,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:18:04,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:18:04,311 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:18:04,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:18:04,311 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:18:04,311 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:18:04,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:18:04,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:18:04,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:18:04,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:18:04,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:18:04,314 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:18:04,314 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_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27746ab44f558a6ebb6981088914ebe56dec54e6e61aba8484d841196c9545ea [2022-11-16 11:18:04,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:18:04,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:18:04,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:18:04,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:18:04,675 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:18:04,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2022-11-16 11:18:04,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/data/bc497eb39/5cc2050ce35d4c7e90c5617b55aa8660/FLAGe66dd986a [2022-11-16 11:18:05,452 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:18:05,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2022-11-16 11:18:05,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/data/bc497eb39/5cc2050ce35d4c7e90c5617b55aa8660/FLAGe66dd986a [2022-11-16 11:18:05,711 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/data/bc497eb39/5cc2050ce35d4c7e90c5617b55aa8660 [2022-11-16 11:18:05,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:18:05,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:18:05,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:18:05,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:18:05,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:18:05,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:18:05" (1/1) ... [2022-11-16 11:18:05,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49864d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:05, skipping insertion in model container [2022-11-16 11:18:05,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:18:05" (1/1) ... [2022-11-16 11:18:05,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:18:05,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:18:06,219 WARN L229 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_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c[15131,15144] [2022-11-16 11:18:06,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:18:06,282 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:18:06,406 WARN L229 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_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c[15131,15144] [2022-11-16 11:18:06,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:18:06,457 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:18:06,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06 WrapperNode [2022-11-16 11:18:06,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:18:06,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:18:06,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:18:06,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:18:06,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,566 INFO L138 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 57, statements flattened = 427 [2022-11-16 11:18:06,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:18:06,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:18:06,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:18:06,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:18:06,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,614 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:18:06,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:18:06,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:18:06,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:18:06,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (1/1) ... [2022-11-16 11:18:06,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:18:06,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:18:06,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:18:06,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:18:06,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:18:06,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:18:06,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:18:06,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:18:06,846 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:18:06,849 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:18:07,327 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:18:07,336 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:18:07,336 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 11:18:07,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:07 BoogieIcfgContainer [2022-11-16 11:18:07,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:18:07,340 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:18:07,341 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:18:07,353 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:18:07,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:18:07,354 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:18:05" (1/3) ... [2022-11-16 11:18:07,356 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26a0e83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:18:07, skipping insertion in model container [2022-11-16 11:18:07,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:18:07,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:06" (2/3) ... [2022-11-16 11:18:07,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26a0e83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:18:07, skipping insertion in model container [2022-11-16 11:18:07,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:18:07,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:07" (3/3) ... [2022-11-16 11:18:07,359 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product28.cil.c [2022-11-16 11:18:07,469 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:18:07,469 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:18:07,469 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:18:07,469 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:18:07,470 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:18:07,470 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:18:07,471 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:18:07,471 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:18:07,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 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) [2022-11-16 11:18:07,531 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2022-11-16 11:18:07,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:18:07,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:18:07,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:07,543 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:07,543 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:18:07,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 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) [2022-11-16 11:18:07,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2022-11-16 11:18:07,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:18:07,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:18:07,567 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:07,568 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:07,574 INFO L748 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 82#L688true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 56#L681true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 41#L696true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 68#L286true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 27#L258true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 75#L154true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 86#L920-2true [2022-11-16 11:18:07,575 INFO L750 eck$LassoCheckResult]: Loop: 86#L920-2true assume !false; 92#L921true assume test_~splverifierCounter~0#1 < 4; 109#L922true test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 54#L930true assume !(0 != test_~tmp~8#1); 100#L930-2true test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 72#L940true assume !(0 != test_~tmp___0~2#1); 38#L940-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 39#L950true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 99#L958true assume !(0 != test_~tmp___1~0#1); 25#L958-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 118#L827true __utac_acc__Specification5_spec__2_#t~ret9#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1; 69#L164true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 22#L724true assume !(0 != ~pumpRunning~0); 15#L724-2true assume !(0 != ~systemActive~0); 80#L731-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 115#L132true __utac_acc__Specification5_spec__3_#t~ret10#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1; 8#L175true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 111#L175-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 112#L741true assume { :end_inline_timeShift } true; 86#L920-2true [2022-11-16 11:18:07,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:07,583 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-16 11:18:07,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:07,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270159189] [2022-11-16 11:18:07,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:07,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:07,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:18:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:07,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:18:07,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:07,799 INFO L85 PathProgramCache]: Analyzing trace with hash 357676121, now seen corresponding path program 1 times [2022-11-16 11:18:07,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:07,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329631174] [2022-11-16 11:18:07,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:07,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:07,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:18:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:07,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:18:07,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:07,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1787424464, now seen corresponding path program 1 times [2022-11-16 11:18:07,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:07,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434917150] [2022-11-16 11:18:07,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:07,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:08,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:08,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:08,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434917150] [2022-11-16 11:18:08,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434917150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:08,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:08,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:18:08,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051988139] [2022-11-16 11:18:08,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:08,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:08,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:08,568 INFO L87 Difference]: Start difference. First operand has 117 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 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 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-11-16 11:18:08,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:08,830 INFO L93 Difference]: Finished difference Result 397 states and 507 transitions. [2022-11-16 11:18:08,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 507 transitions. [2022-11-16 11:18:08,841 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 256 [2022-11-16 11:18:08,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 357 states and 467 transitions. [2022-11-16 11:18:08,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2022-11-16 11:18:08,881 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2022-11-16 11:18:08,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 467 transitions. [2022-11-16 11:18:08,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:18:08,887 INFO L218 hiAutomatonCegarLoop]: Abstraction has 357 states and 467 transitions. [2022-11-16 11:18:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 467 transitions. [2022-11-16 11:18:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 165. [2022-11-16 11:18:08,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 165 states have (on average 1.309090909090909) internal successors, (216), 164 states have internal predecessors, (216), 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) [2022-11-16 11:18:08,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 216 transitions. [2022-11-16 11:18:08,955 INFO L240 hiAutomatonCegarLoop]: Abstraction has 165 states and 216 transitions. [2022-11-16 11:18:08,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:18:08,968 INFO L428 stractBuchiCegarLoop]: Abstraction has 165 states and 216 transitions. [2022-11-16 11:18:08,968 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:18:08,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 216 transitions. [2022-11-16 11:18:08,974 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 117 [2022-11-16 11:18:08,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:18:08,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:18:08,981 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:08,982 INFO L149 hiAutomatonCegarLoop]: 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] [2022-11-16 11:18:08,982 INFO L748 eck$LassoCheckResult]: Stem: 634#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 586#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 587#L688 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 613#L681 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 593#L696 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 594#L286 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 573#L258 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 574#L154 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 625#L920-2 [2022-11-16 11:18:08,983 INFO L750 eck$LassoCheckResult]: Loop: 625#L920-2 assume !false; 629#L921 assume test_~splverifierCounter~0#1 < 4; 630#L922 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 610#L930 assume !(0 != test_~tmp~8#1); 611#L930-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 622#L940 assume !(0 != test_~tmp___0~2#1); 546#L940-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 588#L950 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 589#L906 assume { :end_inline_startSystem } true; 570#L958-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 571#L827 __utac_acc__Specification5_spec__2_#t~ret9#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1; 620#L164 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 564#L724 assume !(0 != ~pumpRunning~0); 551#L724-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 552#L756 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 557#L748-1 assume { :end_inline_processEnvironment__wrappee__base } true; 558#L756-1 assume { :end_inline_processEnvironment } true; 598#L731-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 628#L132 __utac_acc__Specification5_spec__3_#t~ret10#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1; 543#L175 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 533#L175-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 636#L741 assume { :end_inline_timeShift } true; 625#L920-2 [2022-11-16 11:18:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:08,984 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-16 11:18:08,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:08,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058124676] [2022-11-16 11:18:08,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:08,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:09,018 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:18:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:09,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:18:09,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:09,060 INFO L85 PathProgramCache]: Analyzing trace with hash -752998373, now seen corresponding path program 1 times [2022-11-16 11:18:09,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:09,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495840966] [2022-11-16 11:18:09,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:09,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:09,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:18:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:09,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:18:09,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:09,086 INFO L85 PathProgramCache]: Analyzing trace with hash -310786492, now seen corresponding path program 1 times [2022-11-16 11:18:09,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:09,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660969148] [2022-11-16 11:18:09,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:09,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:09,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:09,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:09,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660969148] [2022-11-16 11:18:09,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660969148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:09,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:09,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:18:09,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814121973] [2022-11-16 11:18:09,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:09,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:09,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:18:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:18:09,596 INFO L87 Difference]: Start difference. First operand 165 states and 216 transitions. cyclomatic complexity: 54 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-16 11:18:09,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:09,838 INFO L93 Difference]: Finished difference Result 447 states and 583 transitions. [2022-11-16 11:18:09,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 447 states and 583 transitions. [2022-11-16 11:18:09,854 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 295 [2022-11-16 11:18:09,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 447 states to 447 states and 583 transitions. [2022-11-16 11:18:09,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 447 [2022-11-16 11:18:09,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 447 [2022-11-16 11:18:09,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 447 states and 583 transitions. [2022-11-16 11:18:09,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:18:09,877 INFO L218 hiAutomatonCegarLoop]: Abstraction has 447 states and 583 transitions. [2022-11-16 11:18:09,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states and 583 transitions. [2022-11-16 11:18:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 320. [2022-11-16 11:18:09,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 320 states have (on average 1.29375) internal successors, (414), 319 states have internal predecessors, (414), 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) [2022-11-16 11:18:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 414 transitions. [2022-11-16 11:18:09,926 INFO L240 hiAutomatonCegarLoop]: Abstraction has 320 states and 414 transitions. [2022-11-16 11:18:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:18:09,927 INFO L428 stractBuchiCegarLoop]: Abstraction has 320 states and 414 transitions. [2022-11-16 11:18:09,928 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:18:09,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 320 states and 414 transitions. [2022-11-16 11:18:09,932 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 232 [2022-11-16 11:18:09,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:18:09,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:18:09,935 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:09,936 INFO L149 hiAutomatonCegarLoop]: 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] [2022-11-16 11:18:09,936 INFO L748 eck$LassoCheckResult]: Stem: 1278#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1221#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1222#L688 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1250#L681 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1228#L696 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1229#L286 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1205#L258 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1206#L154 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1262#L920-2 [2022-11-16 11:18:09,936 INFO L750 eck$LassoCheckResult]: Loop: 1262#L920-2 assume !false; 1268#L921 assume test_~splverifierCounter~0#1 < 4; 1270#L922 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1476#L930 assume !(0 != test_~tmp~8#1); 1470#L930-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1465#L940 assume !(0 != test_~tmp___0~2#1); 1462#L940-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1454#L950 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1452#L906 assume { :end_inline_startSystem } true; 1451#L958-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1448#L827 __utac_acc__Specification5_spec__2_#t~ret9#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1; 1445#L164 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1440#L724 assume !(0 != ~pumpRunning~0); 1434#L724-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1431#L756 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1429#L748-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1427#L756-1 assume { :end_inline_processEnvironment } true; 1408#L731-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1283#L132 __utac_acc__Specification5_spec__3_#t~ret10#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1; 1172#L175 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1173#L827-1 __utac_acc__Specification5_spec__3_#t~ret11#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret11#1;havoc __utac_acc__Specification5_spec__3_#t~ret11#1; 1279#L179 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1161#L175-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1282#L741 assume { :end_inline_timeShift } true; 1262#L920-2 [2022-11-16 11:18:09,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:09,939 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-16 11:18:09,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:09,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069818447] [2022-11-16 11:18:09,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:09,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:09,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:18:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:09,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:18:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:09,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2096028970, now seen corresponding path program 1 times [2022-11-16 11:18:09,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:10,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791688362] [2022-11-16 11:18:10,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:10,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:10,018 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:18:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:10,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:18:10,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:10,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1962793663, now seen corresponding path program 1 times [2022-11-16 11:18:10,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:10,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968785822] [2022-11-16 11:18:10,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:10,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:10,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:18:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:10,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:18:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:14,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:18:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:15,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:18:15 BoogieIcfgContainer [2022-11-16 11:18:15,025 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:18:15,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:18:15,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:18:15,027 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:18:15,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:07" (3/4) ... [2022-11-16 11:18:15,030 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 11:18:15,097 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:18:15,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:18:15,102 INFO L158 Benchmark]: Toolchain (without parser) took 9385.91ms. Allocated memory was 127.9MB in the beginning and 234.9MB in the end (delta: 107.0MB). Free memory was 85.6MB in the beginning and 164.5MB in the end (delta: -78.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 11:18:15,103 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:18:15,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.36ms. Allocated memory is still 127.9MB. Free memory was 85.4MB in the beginning and 93.0MB in the end (delta: -7.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:18:15,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.26ms. Allocated memory is still 127.9MB. Free memory was 93.0MB in the beginning and 90.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:18:15,106 INFO L158 Benchmark]: Boogie Preprocessor took 50.06ms. Allocated memory is still 127.9MB. Free memory was 90.3MB in the beginning and 87.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:18:15,106 INFO L158 Benchmark]: RCFGBuilder took 717.79ms. Allocated memory is still 127.9MB. Free memory was 87.8MB in the beginning and 67.2MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-16 11:18:15,107 INFO L158 Benchmark]: BuchiAutomizer took 7685.35ms. Allocated memory was 127.9MB in the beginning and 234.9MB in the end (delta: 107.0MB). Free memory was 67.2MB in the beginning and 166.6MB in the end (delta: -99.4MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-11-16 11:18:15,108 INFO L158 Benchmark]: Witness Printer took 74.96ms. Allocated memory is still 234.9MB. Free memory was 166.6MB in the beginning and 164.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:18:15,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.36ms. Allocated memory is still 127.9MB. Free memory was 85.4MB in the beginning and 93.0MB in the end (delta: -7.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.26ms. Allocated memory is still 127.9MB. Free memory was 93.0MB in the beginning and 90.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.06ms. Allocated memory is still 127.9MB. Free memory was 90.3MB in the beginning and 87.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 717.79ms. Allocated memory is still 127.9MB. Free memory was 87.8MB in the beginning and 67.2MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 7685.35ms. Allocated memory was 127.9MB in the beginning and 234.9MB in the end (delta: 107.0MB). Free memory was 67.2MB in the beginning and 166.6MB in the end (delta: -99.4MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Witness Printer took 74.96ms. Allocated memory is still 234.9MB. Free memory was 166.6MB in the beginning and 164.5MB in the end (delta: 2.1MB). 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 320 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 6.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 319 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1221 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1221 mSDsluCounter, 1650 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1324 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 326 mSDtfsCounter, 128 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 920]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L469] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L58] int methaneLevelCritical = 0; [L714] int pumpRunning = 0; [L57] int waterLevel = 1; [L715] int systemActive = 1; [L148] int switchedOnBeforeTS ; [L197] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L277] int retValue_acc ; [L278] int tmp ; [L282] FCALL select_helpers() [L283] FCALL select_features() [L284] CALL, EXPR valid_product() [L692] int retValue_acc ; [L695] retValue_acc = 1 [L696] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L284] RET, EXPR valid_product() [L284] tmp = valid_product() [L286] COND TRUE \read(tmp) [L288] FCALL setup() [L289] CALL runTest() [L267] CALL __utac_acc__Specification5_spec__1() [L153] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L267] RET __utac_acc__Specification5_spec__1() [L268] CALL test() [L911] int splverifierCounter ; [L912] int tmp ; [L913] int tmp___0 ; [L914] int tmp___1 ; [L915] int tmp___2 ; [L918] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L920] COND TRUE 1 [L922] COND TRUE splverifierCounter < 4 [L928] tmp = __VERIFIER_nondet_int() [L930] COND FALSE !(\read(tmp)) [L938] tmp___0 = __VERIFIER_nondet_int() [L940] COND FALSE !(\read(tmp___0)) [L948] tmp___2 = __VERIFIER_nondet_int() [L950] COND TRUE \read(tmp___2) [L952] CALL startSystem() [L905] systemActive = 1 [L952] RET startSystem() [L967] CALL timeShift() [L722] CALL __utac_acc__Specification5_spec__2() [L162] CALL, EXPR isPumpRunning() [L823] int retValue_acc ; [L826] retValue_acc = pumpRunning [L827] return (retValue_acc); [L162] RET, EXPR isPumpRunning() [L162] switchedOnBeforeTS = isPumpRunning() [L722] RET __utac_acc__Specification5_spec__2() [L724] COND FALSE !(\read(pumpRunning)) [L731] COND TRUE \read(systemActive) [L733] CALL processEnvironment() [L753] int tmp ; [L756] COND FALSE !(\read(pumpRunning)) [L771] FCALL processEnvironment__wrappee__base() [L733] RET processEnvironment() [L739] CALL __utac_acc__Specification5_spec__3() [L168] int tmp ; [L169] int tmp___0 ; [L173] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L173] RET, EXPR getWaterLevel() [L173] tmp = getWaterLevel() [L175] COND TRUE tmp != 2 [L177] CALL, EXPR isPumpRunning() [L823] int retValue_acc ; [L826] retValue_acc = pumpRunning [L827] return (retValue_acc); [L177] RET, EXPR isPumpRunning() [L177] tmp___0 = isPumpRunning() [L179] COND FALSE !(\read(tmp___0)) [L739] RET __utac_acc__Specification5_spec__3() [L967] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 920]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L469] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L58] int methaneLevelCritical = 0; [L714] int pumpRunning = 0; [L57] int waterLevel = 1; [L715] int systemActive = 1; [L148] int switchedOnBeforeTS ; [L197] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L277] int retValue_acc ; [L278] int tmp ; [L282] FCALL select_helpers() [L283] FCALL select_features() [L284] CALL, EXPR valid_product() [L692] int retValue_acc ; [L695] retValue_acc = 1 [L696] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L284] RET, EXPR valid_product() [L284] tmp = valid_product() [L286] COND TRUE \read(tmp) [L288] FCALL setup() [L289] CALL runTest() [L267] CALL __utac_acc__Specification5_spec__1() [L153] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L267] RET __utac_acc__Specification5_spec__1() [L268] CALL test() [L911] int splverifierCounter ; [L912] int tmp ; [L913] int tmp___0 ; [L914] int tmp___1 ; [L915] int tmp___2 ; [L918] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L920] COND TRUE 1 [L922] COND TRUE splverifierCounter < 4 [L928] tmp = __VERIFIER_nondet_int() [L930] COND FALSE !(\read(tmp)) [L938] tmp___0 = __VERIFIER_nondet_int() [L940] COND FALSE !(\read(tmp___0)) [L948] tmp___2 = __VERIFIER_nondet_int() [L950] COND TRUE \read(tmp___2) [L952] CALL startSystem() [L905] systemActive = 1 [L952] RET startSystem() [L967] CALL timeShift() [L722] CALL __utac_acc__Specification5_spec__2() [L162] CALL, EXPR isPumpRunning() [L823] int retValue_acc ; [L826] retValue_acc = pumpRunning [L827] return (retValue_acc); [L162] RET, EXPR isPumpRunning() [L162] switchedOnBeforeTS = isPumpRunning() [L722] RET __utac_acc__Specification5_spec__2() [L724] COND FALSE !(\read(pumpRunning)) [L731] COND TRUE \read(systemActive) [L733] CALL processEnvironment() [L753] int tmp ; [L756] COND FALSE !(\read(pumpRunning)) [L771] FCALL processEnvironment__wrappee__base() [L733] RET processEnvironment() [L739] CALL __utac_acc__Specification5_spec__3() [L168] int tmp ; [L169] int tmp___0 ; [L173] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L173] RET, EXPR getWaterLevel() [L173] tmp = getWaterLevel() [L175] COND TRUE tmp != 2 [L177] CALL, EXPR isPumpRunning() [L823] int retValue_acc ; [L826] retValue_acc = pumpRunning [L827] return (retValue_acc); [L177] RET, EXPR isPumpRunning() [L177] tmp___0 = isPumpRunning() [L179] COND FALSE !(\read(tmp___0)) [L739] RET __utac_acc__Specification5_spec__3() [L967] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:18:15,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ef021d7-61b2-4e20-834b-dacc3fa8aa92/bin/uautomizer-tPACEb0tL8/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)