./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G --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 e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:31:20,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:31:20,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:31:20,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:31:20,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:31:20,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:31:20,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:31:20,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:31:20,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:31:20,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:31:20,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:31:20,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:31:20,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:31:20,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:31:20,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:31:20,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:31:20,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:31:20,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:31:20,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:31:20,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:31:20,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:31:20,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:31:20,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:31:20,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:31:21,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:31:21,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:31:21,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:31:21,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:31:21,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:31:21,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:31:21,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:31:21,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:31:21,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:31:21,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:31:21,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:31:21,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:31:21,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:31:21,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:31:21,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:31:21,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:31:21,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:31:21,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-23 13:31:21,079 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:31:21,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:31:21,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:31:21,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:31:21,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:31:21,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:31:21,085 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:31:21,086 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 13:31:21,086 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 13:31:21,086 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 13:31:21,087 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 13:31:21,088 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 13:31:21,088 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 13:31:21,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:31:21,089 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:31:21,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:31:21,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:31:21,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:31:21,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:31:21,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 13:31:21,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 13:31:21,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 13:31:21,090 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:31:21,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:31:21,091 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 13:31:21,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:31:21,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 13:31:21,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:31:21,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:31:21,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:31:21,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:31:21,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:31:21,094 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 13:31:21,095 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_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2021-11-23 13:31:21,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:31:21,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:31:21,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:31:21,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:31:21,455 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:31:21,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2021-11-23 13:31:21,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/data/90bde15f1/02857b651258407e8b1b821f70016a3d/FLAG610f7248f [2021-11-23 13:31:22,275 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:31:22,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2021-11-23 13:31:22,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/data/90bde15f1/02857b651258407e8b1b821f70016a3d/FLAG610f7248f [2021-11-23 13:31:22,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/data/90bde15f1/02857b651258407e8b1b821f70016a3d [2021-11-23 13:31:22,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:31:22,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:31:22,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:31:22,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:31:22,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:31:22,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:31:22" (1/1) ... [2021-11-23 13:31:22,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ba71e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:22, skipping insertion in model container [2021-11-23 13:31:22,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:31:22" (1/1) ... [2021-11-23 13:31:22,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:31:22,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:31:23,037 WARN L230 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_cf9f58cf-4433-455e-83f3-1fdc200aeacc/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2021-11-23 13:31:23,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:31:23,060 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:31:23,167 WARN L230 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_cf9f58cf-4433-455e-83f3-1fdc200aeacc/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2021-11-23 13:31:23,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:31:23,203 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:31:23,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23 WrapperNode [2021-11-23 13:31:23,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:31:23,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:31:23,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:31:23,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:31:23,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,304 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 144, statements flattened = 1041 [2021-11-23 13:31:23,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:31:23,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:31:23,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:31:23,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:31:23,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:31:23,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:31:23,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:31:23,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:31:23,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (1/1) ... [2021-11-23 13:31:23,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:31:23,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:31:23,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:31:23,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 13:31:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:31:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:31:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:31:23,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:31:23,591 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:31:23,593 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:31:24,486 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:31:24,502 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:31:24,502 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 13:31:24,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:31:24 BoogieIcfgContainer [2021-11-23 13:31:24,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:31:24,507 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 13:31:24,507 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 13:31:24,512 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 13:31:24,513 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:31:24,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:31:22" (1/3) ... [2021-11-23 13:31:24,515 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40c12975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:31:24, skipping insertion in model container [2021-11-23 13:31:24,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:31:24,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:31:23" (2/3) ... [2021-11-23 13:31:24,516 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40c12975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:31:24, skipping insertion in model container [2021-11-23 13:31:24,516 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:31:24,516 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:31:24" (3/3) ... [2021-11-23 13:31:24,518 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2021-11-23 13:31:24,592 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 13:31:24,592 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 13:31:24,593 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 13:31:24,593 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 13:31:24,593 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 13:31:24,593 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 13:31:24,594 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 13:31:24,594 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 13:31:24,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 280 states, 279 states have (on average 1.3691756272401434) internal successors, (382), 279 states have internal predecessors, (382), 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) [2021-11-23 13:31:24,723 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2021-11-23 13:31:24,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:31:24,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:31:24,735 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:31:24,735 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:31:24,735 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 13:31:24,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 280 states, 279 states have (on average 1.3691756272401434) internal successors, (382), 279 states have internal predecessors, (382), 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) [2021-11-23 13:31:24,753 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2021-11-23 13:31:24,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:31:24,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:31:24,759 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:31:24,759 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:31:24,775 INFO L791 eck$LassoCheckResult]: Stem: 266#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 169#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 248#L679true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 100#L672true 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; 53#L687true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 30#L894true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 79#L870true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 11#L768true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#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; 114#L705-2true [2021-11-23 13:31:24,776 INFO L793 eck$LassoCheckResult]: Loop: 114#L705-2true assume !false; 257#L706true assume test_~splverifierCounter~0#1 < 4; 212#L707true test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 18#L715true assume !(0 != test_~tmp~8#1); 136#L715-2true test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 12#L725true assume !(0 != test_~tmp___0~2#1); 22#L725-2true test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 274#L735true assume 0 != test_~tmp___2~0#1; 211#L741-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 145#L575true __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 146#L778true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 236#L438true assume !(0 != ~pumpRunning~0); 245#L438-2true assume !(0 != ~systemActive~0); 173#L445-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 198#L992true __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 66#L789true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 186#L789-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 134#L455true assume { :end_inline_timeShift } true; 114#L705-2true [2021-11-23 13:31:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:24,788 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-11-23 13:31:24,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:24,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965922586] [2021-11-23 13:31:24,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:24,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:24,931 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:31:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:24,995 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:31:24,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1456241548, now seen corresponding path program 1 times [2021-11-23 13:31:24,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:25,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828268394] [2021-11-23 13:31:25,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:25,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:25,018 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:31:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:25,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:31:25,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:25,051 INFO L85 PathProgramCache]: Analyzing trace with hash 116889141, now seen corresponding path program 1 times [2021-11-23 13:31:25,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:25,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568283109] [2021-11-23 13:31:25,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:25,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:31:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:31:25,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:31:25,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568283109] [2021-11-23 13:31:25,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568283109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:31:25,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:31:25,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:31:25,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187879511] [2021-11-23 13:31:25,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:31:25,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:31:25,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:31:25,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:31:25,488 INFO L87 Difference]: Start difference. First operand has 280 states, 279 states have (on average 1.3691756272401434) internal successors, (382), 279 states have internal predecessors, (382), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-11-23 13:31:25,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:31:25,647 INFO L93 Difference]: Finished difference Result 277 states and 368 transitions. [2021-11-23 13:31:25,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:31:25,654 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 368 transitions. [2021-11-23 13:31:25,658 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 178 [2021-11-23 13:31:25,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 267 states and 358 transitions. [2021-11-23 13:31:25,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2021-11-23 13:31:25,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2021-11-23 13:31:25,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 358 transitions. [2021-11-23 13:31:25,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:31:25,674 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 358 transitions. [2021-11-23 13:31:25,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 358 transitions. [2021-11-23 13:31:25,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-11-23 13:31:25,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.3408239700374531) internal successors, (358), 266 states have internal predecessors, (358), 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) [2021-11-23 13:31:25,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 358 transitions. [2021-11-23 13:31:25,720 INFO L704 BuchiCegarLoop]: Abstraction has 267 states and 358 transitions. [2021-11-23 13:31:25,720 INFO L587 BuchiCegarLoop]: Abstraction has 267 states and 358 transitions. [2021-11-23 13:31:25,720 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 13:31:25,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 358 transitions. [2021-11-23 13:31:25,723 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 178 [2021-11-23 13:31:25,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:31:25,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:31:25,725 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:31:25,725 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:31:25,726 INFO L791 eck$LassoCheckResult]: Stem: 839#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 799#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 800#L679 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 732#L672 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; 674#L687 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 630#L894 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 631#L870 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 593#L768 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#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; 594#L705-2 [2021-11-23 13:31:25,726 INFO L793 eck$LassoCheckResult]: Loop: 594#L705-2 assume !false; 748#L706 assume test_~splverifierCounter~0#1 < 4; 826#L707 test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 607#L715 assume !(0 != test_~tmp~8#1); 609#L715-2 test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 595#L725 assume !(0 != test_~tmp___0~2#1); 597#L725-2 test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 616#L735 assume 0 != test_~tmp___2~0#1; 752#L741-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 779#L575 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 780#L778 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 781#L438 assume !(0 != ~pumpRunning~0); 691#L438-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 835#L522 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret30#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 587#L960 isMethaneAlarm_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret30#1;havoc isMethaneAlarm_#t~ret30#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; 588#L566 processEnvironment_#t~ret29#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret29#1;havoc processEnvironment_#t~ret29#1; 736#L526 assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 834#L556 assume { :end_inline_deactivatePump } true; 614#L522-1 assume { :end_inline_processEnvironment } true; 615#L445-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 803#L992 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 695#L789 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 696#L789-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 768#L455 assume { :end_inline_timeShift } true; 594#L705-2 [2021-11-23 13:31:25,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:25,727 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-11-23 13:31:25,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:25,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887557230] [2021-11-23 13:31:25,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:25,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:25,749 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:31:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:25,811 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:31:25,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:25,812 INFO L85 PathProgramCache]: Analyzing trace with hash -803845163, now seen corresponding path program 1 times [2021-11-23 13:31:25,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:25,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316581877] [2021-11-23 13:31:25,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:25,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:31:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:31:25,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:31:25,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316581877] [2021-11-23 13:31:25,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316581877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:31:25,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:31:25,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:31:25,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945411691] [2021-11-23 13:31:25,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:31:25,853 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 13:31:25,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:31:25,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:31:25,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:31:25,855 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2021-11-23 13:31:26,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:31:26,020 INFO L93 Difference]: Finished difference Result 286 states and 363 transitions. [2021-11-23 13:31:26,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:31:26,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 286 states and 363 transitions. [2021-11-23 13:31:26,027 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2021-11-23 13:31:26,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 286 states to 286 states and 363 transitions. [2021-11-23 13:31:26,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 286 [2021-11-23 13:31:26,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 286 [2021-11-23 13:31:26,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 286 states and 363 transitions. [2021-11-23 13:31:26,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:31:26,045 INFO L681 BuchiCegarLoop]: Abstraction has 286 states and 363 transitions. [2021-11-23 13:31:26,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states and 363 transitions. [2021-11-23 13:31:26,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2021-11-23 13:31:26,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 286 states have (on average 1.2692307692307692) internal successors, (363), 285 states have internal predecessors, (363), 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) [2021-11-23 13:31:26,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 363 transitions. [2021-11-23 13:31:26,073 INFO L704 BuchiCegarLoop]: Abstraction has 286 states and 363 transitions. [2021-11-23 13:31:26,073 INFO L587 BuchiCegarLoop]: Abstraction has 286 states and 363 transitions. [2021-11-23 13:31:26,073 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 13:31:26,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 286 states and 363 transitions. [2021-11-23 13:31:26,076 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2021-11-23 13:31:26,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:31:26,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:31:26,078 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:31:26,079 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, 1, 1, 1] [2021-11-23 13:31:26,080 INFO L791 eck$LassoCheckResult]: Stem: 1354#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1309#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1310#L679 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1256#L672 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; 1210#L687 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1173#L894 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1174#L870 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1149#L768 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#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; 1150#L705-2 [2021-11-23 13:31:26,082 INFO L793 eck$LassoCheckResult]: Loop: 1150#L705-2 assume !false; 1266#L706 assume test_~splverifierCounter~0#1 < 4; 1338#L707 test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 1158#L715 assume !(0 != test_~tmp~8#1); 1160#L715-2 test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 1151#L725 assume !(0 != test_~tmp___0~2#1); 1153#L725-2 test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 1167#L735 assume 0 != test_~tmp___2~0#1; 1270#L741-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 1292#L575 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 1293#L778 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1294#L438 assume !(0 != ~pumpRunning~0); 1346#L438-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1348#L522 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 1241#L496-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 1242#L470-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1328#L1000-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1329#L1005-3 isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; 1274#L624-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1275#L624-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1332#L630-3 processEnvironment__wrappee__highWaterSensor_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret27#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1; 1273#L474-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1251#L462-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1252#L470-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1283#L496-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1165#L522-1 assume { :end_inline_processEnvironment } true; 1166#L445-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1312#L992 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 1225#L789 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 1226#L789-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1284#L455 assume { :end_inline_timeShift } true; 1150#L705-2 [2021-11-23 13:31:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:26,083 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-11-23 13:31:26,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:26,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330790345] [2021-11-23 13:31:26,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:26,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:26,126 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:31:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:26,160 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:31:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:26,162 INFO L85 PathProgramCache]: Analyzing trace with hash 778017780, now seen corresponding path program 1 times [2021-11-23 13:31:26,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:26,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511547664] [2021-11-23 13:31:26,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:26,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:31:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:31:26,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:31:26,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511547664] [2021-11-23 13:31:26,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511547664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:31:26,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:31:26,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:31:26,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520314986] [2021-11-23 13:31:26,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:31:26,246 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 13:31:26,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:31:26,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:31:26,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:31:26,247 INFO L87 Difference]: Start difference. First operand 286 states and 363 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-11-23 13:31:26,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:31:26,462 INFO L93 Difference]: Finished difference Result 841 states and 1045 transitions. [2021-11-23 13:31:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:31:26,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 841 states and 1045 transitions. [2021-11-23 13:31:26,473 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 531 [2021-11-23 13:31:26,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 841 states to 841 states and 1045 transitions. [2021-11-23 13:31:26,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 841 [2021-11-23 13:31:26,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 841 [2021-11-23 13:31:26,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 841 states and 1045 transitions. [2021-11-23 13:31:26,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:31:26,485 INFO L681 BuchiCegarLoop]: Abstraction has 841 states and 1045 transitions. [2021-11-23 13:31:26,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states and 1045 transitions. [2021-11-23 13:31:26,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 562. [2021-11-23 13:31:26,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 562 states have (on average 1.2437722419928825) internal successors, (699), 561 states have internal predecessors, (699), 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) [2021-11-23 13:31:26,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 699 transitions. [2021-11-23 13:31:26,511 INFO L704 BuchiCegarLoop]: Abstraction has 562 states and 699 transitions. [2021-11-23 13:31:26,511 INFO L587 BuchiCegarLoop]: Abstraction has 562 states and 699 transitions. [2021-11-23 13:31:26,511 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-23 13:31:26,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 562 states and 699 transitions. [2021-11-23 13:31:26,518 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 390 [2021-11-23 13:31:26,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:31:26,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:31:26,519 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:31:26,519 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, 1, 1, 1, 1, 1] [2021-11-23 13:31:26,520 INFO L791 eck$LassoCheckResult]: Stem: 2509#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2457#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2458#L679 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2402#L672 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; 2354#L687 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 2316#L894 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2317#L870 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2292#L768 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#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; 2293#L705-2 [2021-11-23 13:31:26,520 INFO L793 eck$LassoCheckResult]: Loop: 2293#L705-2 assume !false; 2412#L706 assume test_~splverifierCounter~0#1 < 4; 2494#L707 test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 2301#L715 assume !(0 != test_~tmp~8#1); 2303#L715-2 test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 2294#L725 assume !(0 != test_~tmp___0~2#1); 2296#L725-2 test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 2310#L735 assume 0 != test_~tmp___2~0#1; 2416#L741-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 2438#L575 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 2439#L778 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2440#L438 assume !(0 != ~pumpRunning~0); 2501#L438-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2504#L522 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 2386#L496-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 2387#L470-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 2479#L1000-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 2480#L1005-3 isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; 2422#L624-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2423#L624-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 2485#L630-3 processEnvironment__wrappee__highWaterSensor_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret27#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1; 2419#L474-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2397#L462-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2398#L470-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2429#L496-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2308#L522-1 assume { :end_inline_processEnvironment } true; 2309#L445-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 2789#L992 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 2370#L789 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 2322#L575-1 __utac_acc__Specification5_spec__3_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret48#1;havoc __utac_acc__Specification5_spec__3_#t~ret48#1; 2323#L793 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 2459#L789-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2430#L455 assume { :end_inline_timeShift } true; 2293#L705-2 [2021-11-23 13:31:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-11-23 13:31:26,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:26,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381896800] [2021-11-23 13:31:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:26,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:26,540 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:31:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:26,572 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:31:26,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:26,573 INFO L85 PathProgramCache]: Analyzing trace with hash 331684399, now seen corresponding path program 1 times [2021-11-23 13:31:26,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:26,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601772130] [2021-11-23 13:31:26,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:26,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:26,588 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:31:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:26,610 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:31:26,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:31:26,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1645099110, now seen corresponding path program 1 times [2021-11-23 13:31:26,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:31:26,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960906657] [2021-11-23 13:31:26,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:31:26,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:31:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:26,640 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:31:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:31:26,662 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:31:31,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:31:31 BoogieIcfgContainer [2021-11-23 13:31:31,117 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 13:31:31,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:31:31,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:31:31,118 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:31:31,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:31:24" (3/4) ... [2021-11-23 13:31:31,122 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-23 13:31:31,234 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:31:31,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:31:31,236 INFO L158 Benchmark]: Toolchain (without parser) took 8705.86ms. Allocated memory was 100.7MB in the beginning and 190.8MB in the end (delta: 90.2MB). Free memory was 59.5MB in the beginning and 130.8MB in the end (delta: -71.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2021-11-23 13:31:31,237 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory was 76.5MB in the beginning and 76.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:31:31,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 669.74ms. Allocated memory is still 100.7MB. Free memory was 59.2MB in the beginning and 65.9MB in the end (delta: -6.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:31:31,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.33ms. Allocated memory is still 100.7MB. Free memory was 65.9MB in the beginning and 61.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 13:31:31,239 INFO L158 Benchmark]: Boogie Preprocessor took 70.85ms. Allocated memory is still 100.7MB. Free memory was 61.3MB in the beginning and 58.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:31:31,241 INFO L158 Benchmark]: RCFGBuilder took 1128.95ms. Allocated memory was 100.7MB in the beginning and 134.2MB in the end (delta: 33.6MB). Free memory was 58.0MB in the beginning and 100.3MB in the end (delta: -42.3MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2021-11-23 13:31:31,242 INFO L158 Benchmark]: BuchiAutomizer took 6610.47ms. Allocated memory was 134.2MB in the beginning and 190.8MB in the end (delta: 56.6MB). Free memory was 100.3MB in the beginning and 134.0MB in the end (delta: -33.7MB). Peak memory consumption was 99.2MB. Max. memory is 16.1GB. [2021-11-23 13:31:31,243 INFO L158 Benchmark]: Witness Printer took 116.88ms. Allocated memory is still 190.8MB. Free memory was 134.0MB in the beginning and 130.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:31:31,248 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 100.7MB. Free memory was 76.5MB in the beginning and 76.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 669.74ms. Allocated memory is still 100.7MB. Free memory was 59.2MB in the beginning and 65.9MB in the end (delta: -6.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.33ms. Allocated memory is still 100.7MB. Free memory was 65.9MB in the beginning and 61.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.85ms. Allocated memory is still 100.7MB. Free memory was 61.3MB in the beginning and 58.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1128.95ms. Allocated memory was 100.7MB in the beginning and 134.2MB in the end (delta: 33.6MB). Free memory was 58.0MB in the beginning and 100.3MB in the end (delta: -42.3MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 6610.47ms. Allocated memory was 134.2MB in the beginning and 190.8MB in the end (delta: 56.6MB). Free memory was 100.3MB in the beginning and 134.0MB in the end (delta: -33.7MB). Peak memory consumption was 99.2MB. Max. memory is 16.1GB. * Witness Printer took 116.88ms. Allocated memory is still 190.8MB. Free memory was 134.0MB in the beginning and 130.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 562 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 279 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 562 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2233 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2233 mSDsluCounter, 2234 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1123 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 1111 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 705]: 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 {splverifierCounter=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e91a700=0, retValue_acc=0, NULL=1, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, tmp=1, retValue_acc=1, \result=1, \result=1, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5de75071=0, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10599dda=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3570d269=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2734e8ab=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fdbba5b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dac9b48=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2020a124=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fc50c44=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60d51fc5=0, tmp=0, head=0, retValue_acc=0, \result=1, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ab89cdb=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f7573fe=0, tmp=0, tmp=0, \result=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 705]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L762] int switchedOnBeforeTS ; [L811] int cleanupTimeShifts = 4; [L917] int waterLevel = 1; [L918] int methaneLevelCritical = 0; [L885] int retValue_acc ; [L886] int tmp ; [L890] FCALL select_helpers() [L891] FCALL select_features() [L892] CALL, EXPR valid_product() [L683] int retValue_acc ; [L686] retValue_acc = 1 [L687] return (retValue_acc); [L892] RET, EXPR valid_product() [L892] tmp = valid_product() [L894] COND TRUE \read(tmp) [L896] FCALL setup() [L897] CALL runTest() [L878] CALL __utac_acc__Specification5_spec__1() [L767] switchedOnBeforeTS = 0 [L878] RET __utac_acc__Specification5_spec__1() [L879] CALL test() [L696] int splverifierCounter ; [L697] int tmp ; [L698] int tmp___0 ; [L699] int tmp___1 ; [L700] int tmp___2 ; [L703] splverifierCounter = 0 Loop: [L705] COND TRUE 1 [L707] COND TRUE splverifierCounter < 4 [L713] tmp = __VERIFIER_nondet_int() [L715] COND FALSE !(\read(tmp)) [L723] tmp___0 = __VERIFIER_nondet_int() [L725] COND FALSE !(\read(tmp___0)) [L733] tmp___2 = __VERIFIER_nondet_int() [L735] COND TRUE \read(tmp___2) [L748] CALL timeShift() [L436] CALL __utac_acc__Specification5_spec__2() [L776] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L776] RET, EXPR isPumpRunning() [L776] switchedOnBeforeTS = isPumpRunning() [L436] RET __utac_acc__Specification5_spec__2() [L438] COND FALSE !(\read(pumpRunning)) [L445] COND TRUE \read(systemActive) [L447] CALL processEnvironment() [L519] int tmp ; [L522] COND FALSE !(\read(pumpRunning)) [L537] CALL processEnvironment__wrappee__lowWaterSensor() [L493] int tmp ; [L496] COND FALSE !(\read(pumpRunning)) [L511] CALL processEnvironment__wrappee__highWaterSensor() [L467] int tmp ; [L470] COND TRUE ! pumpRunning [L472] CALL, EXPR isHighWaterLevel() [L616] int retValue_acc ; [L617] int tmp ; [L618] int tmp___0 ; [L622] CALL, EXPR isHighWaterSensorDry() [L997] int retValue_acc ; [L1000] COND TRUE waterLevel < 2 [L1001] retValue_acc = 1 [L1002] return (retValue_acc); [L622] RET, EXPR isHighWaterSensorDry() [L622] tmp = isHighWaterSensorDry() [L624] COND TRUE \read(tmp) [L625] tmp___0 = 0 [L629] retValue_acc = tmp___0 [L630] return (retValue_acc); [L472] RET, EXPR isHighWaterLevel() [L472] tmp = isHighWaterLevel() [L474] COND FALSE !(\read(tmp)) [L480] FCALL processEnvironment__wrappee__base() [L511] RET processEnvironment__wrappee__highWaterSensor() [L537] RET processEnvironment__wrappee__lowWaterSensor() [L447] RET processEnvironment() [L453] CALL __utac_acc__Specification5_spec__3() [L782] int tmp ; [L783] int tmp___0 ; [L787] CALL, EXPR getWaterLevel() [L988] int retValue_acc ; [L991] retValue_acc = waterLevel [L992] return (retValue_acc); [L787] RET, EXPR getWaterLevel() [L787] tmp = getWaterLevel() [L789] COND TRUE tmp != 2 [L791] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L791] RET, EXPR isPumpRunning() [L791] tmp___0 = isPumpRunning() [L793] COND FALSE !(\read(tmp___0)) [L453] RET __utac_acc__Specification5_spec__3() [L748] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 13:31:31,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9f58cf-4433-455e-83f3-1fdc200aeacc/bin/uautomizer-wIGwrQj20G/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)