./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8 --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 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:09:55,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:09:55,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:09:55,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:09:55,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:09:55,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:09:55,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:09:55,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:09:55,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:09:55,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:09:55,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:09:55,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:09:55,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:09:55,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:09:55,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:09:55,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:09:55,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:09:55,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:09:55,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:09:55,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:09:55,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:09:55,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:09:55,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:09:55,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:09:55,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:09:55,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:09:55,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:09:55,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:09:55,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:09:55,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:09:55,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:09:55,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:09:55,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:09:55,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:09:55,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:09:55,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:09:55,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:09:55,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:09:55,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:09:55,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:09:55,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:09:55,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 21:09:55,705 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:09:55,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:09:55,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:09:55,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:09:55,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:09:55,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:09:55,708 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:09:55,708 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 21:09:55,708 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 21:09:55,708 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 21:09:55,708 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 21:09:55,709 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 21:09:55,709 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 21:09:55,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:09:55,709 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:09:55,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:09:55,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:09:55,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:09:55,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:09:55,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 21:09:55,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 21:09:55,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 21:09:55,710 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:09:55,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:09:55,710 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 21:09:55,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:09:55,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 21:09:55,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:09:55,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:09:55,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:09:55,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:09:55,712 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 21:09:55,713 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_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 [2022-12-13 21:09:55,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:09:55,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:09:55,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:09:55,902 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:09:55,902 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:09:55,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2022-12-13 21:09:58,603 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:09:58,762 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:09:58,762 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2022-12-13 21:09:58,770 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/data/dea33be43/4e579893eb3a46698f3f9b298b69736d/FLAGd892e62a9 [2022-12-13 21:09:58,782 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/data/dea33be43/4e579893eb3a46698f3f9b298b69736d [2022-12-13 21:09:58,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:09:58,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:09:58,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:09:58,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:09:58,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:09:58,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:09:58" (1/1) ... [2022-12-13 21:09:58,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5778fb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:58, skipping insertion in model container [2022-12-13 21:09:58,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:09:58" (1/1) ... [2022-12-13 21:09:58,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:09:58,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:09:59,039 WARN L237 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_be069e4b-6725-418c-9b0f-077c9376e8f7/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2022-12-13 21:09:59,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:09:59,054 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:09:59,117 WARN L237 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_be069e4b-6725-418c-9b0f-077c9376e8f7/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2022-12-13 21:09:59,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:09:59,135 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:09:59,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59 WrapperNode [2022-12-13 21:09:59,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:09:59,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:09:59,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:09:59,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:09:59,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,182 INFO L138 Inliner]: procedures = 52, calls = 93, calls flagged for inlining = 46, calls inlined = 47, statements flattened = 333 [2022-12-13 21:09:59,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:09:59,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:09:59,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:09:59,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:09:59,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,208 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:09:59,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:09:59,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:09:59,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:09:59,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (1/1) ... [2022-12-13 21:09:59,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:09:59,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:09:59,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:09:59,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 21:09:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:09:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:09:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:09:59,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:09:59,356 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:09:59,359 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:09:59,617 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:09:59,625 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:09:59,625 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:09:59,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:09:59 BoogieIcfgContainer [2022-12-13 21:09:59,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:09:59,628 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 21:09:59,629 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 21:09:59,632 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 21:09:59,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:09:59,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 09:09:58" (1/3) ... [2022-12-13 21:09:59,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b6d27ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:09:59, skipping insertion in model container [2022-12-13 21:09:59,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:09:59,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:09:59" (2/3) ... [2022-12-13 21:09:59,637 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b6d27ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:09:59, skipping insertion in model container [2022-12-13 21:09:59,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:09:59,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:09:59" (3/3) ... [2022-12-13 21:09:59,639 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2022-12-13 21:09:59,693 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 21:09:59,693 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 21:09:59,693 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 21:09:59,693 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 21:09:59,693 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 21:09:59,693 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 21:09:59,694 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 21:09:59,694 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 21:09:59,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 104 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:09:59,720 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-12-13 21:09:59,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:09:59,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:09:59,726 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:09:59,726 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:09:59,726 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 21:09:59,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 104 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:09:59,732 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-12-13 21:09:59,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:09:59,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:09:59,733 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:09:59,734 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:09:59,739 INFO L748 eck$LassoCheckResult]: Stem: 25#$Ultimate##0true 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 32#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 19#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 85#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 76#valid_product_returnLabel#1true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 94#L506true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 58#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 51#L565-2true [2022-12-13 21:09:59,740 INFO L750 eck$LassoCheckResult]: Loop: 51#L565-2true assume !false; 89#L566true assume test_~splverifierCounter~0#1 < 4; 38#L567true test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 13#L575true assume !(0 != test_~tmp~4#1); 14#L575-2true test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 63#L585true assume !(0 != test_~tmp___0~0#1); 33#L585-2true test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 106#L595true assume 0 != test_~tmp___2~0#1; 64#L601-2true assume { :begin_inline_timeShift } true; 44#L730true assume !(0 != ~pumpRunning~0); 43#L730-2true assume !(0 != ~systemActive~0); 29#L737-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 52#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 97#L892true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 66#L892-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 53#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 51#L565-2true [2022-12-13 21:09:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:59,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 21:09:59,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:09:59,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827993165] [2022-12-13 21:09:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:59,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:09:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:09:59,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:09:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:09:59,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:09:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:59,884 INFO L85 PathProgramCache]: Analyzing trace with hash -680968892, now seen corresponding path program 1 times [2022-12-13 21:09:59,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:09:59,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081511368] [2022-12-13 21:09:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:59,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:09:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:09:59,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:09:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:09:59,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:09:59,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:59,903 INFO L85 PathProgramCache]: Analyzing trace with hash 674450184, now seen corresponding path program 1 times [2022-12-13 21:09:59,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:09:59,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721813204] [2022-12-13 21:09:59,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:59,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:09:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:10:00,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:00,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721813204] [2022-12-13 21:10:00,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721813204] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:00,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:00,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:10:00,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566178748] [2022-12-13 21:10:00,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:00,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:10:00,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:10:00,177 INFO L87 Difference]: Start difference. First operand has 105 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 104 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:10:00,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:00,229 INFO L93 Difference]: Finished difference Result 102 states and 130 transitions. [2022-12-13 21:10:00,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 130 transitions. [2022-12-13 21:10:00,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-12-13 21:10:00,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 92 states and 120 transitions. [2022-12-13 21:10:00,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2022-12-13 21:10:00,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2022-12-13 21:10:00,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 120 transitions. [2022-12-13 21:10:00,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:10:00,237 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2022-12-13 21:10:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 120 transitions. [2022-12-13 21:10:00,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-12-13 21:10:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 91 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:10:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 120 transitions. [2022-12-13 21:10:00,258 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2022-12-13 21:10:00,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:10:00,261 INFO L428 stractBuchiCegarLoop]: Abstraction has 92 states and 120 transitions. [2022-12-13 21:10:00,261 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 21:10:00,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 120 transitions. [2022-12-13 21:10:00,262 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-12-13 21:10:00,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:10:00,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:10:00,263 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:00,263 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:00,263 INFO L748 eck$LassoCheckResult]: Stem: 285#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 286#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 276#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 277#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 273#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 274#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 227#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 228#L565-2 [2022-12-13 21:10:00,263 INFO L750 eck$LassoCheckResult]: Loop: 228#L565-2 assume !false; 301#L566 assume test_~splverifierCounter~0#1 < 4; 302#L567 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 252#L575 assume !(0 != test_~tmp~4#1); 254#L575-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 243#L585 assume !(0 != test_~tmp___0~0#1); 245#L585-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 304#L595 assume 0 != test_~tmp___2~0#1; 248#L601-2 assume { :begin_inline_timeShift } true; 249#L730 assume !(0 != ~pumpRunning~0); 266#L730-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 268#L762 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 233#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 232#L762-1 assume { :end_inline_processEnvironment } true; 291#L737-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 294#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 311#L892 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 247#L892-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 258#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 228#L565-2 [2022-12-13 21:10:00,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:00,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 21:10:00,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:00,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451622842] [2022-12-13 21:10:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:00,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:10:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:10:00,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:00,277 INFO L85 PathProgramCache]: Analyzing trace with hash -232248349, now seen corresponding path program 1 times [2022-12-13 21:10:00,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:00,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568163708] [2022-12-13 21:10:00,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:00,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:10:00,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:00,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568163708] [2022-12-13 21:10:00,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568163708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:00,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:00,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:10:00,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640475842] [2022-12-13 21:10:00,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:00,293 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:10:00,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:00,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:10:00,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:10:00,294 INFO L87 Difference]: Start difference. First operand 92 states and 120 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:10:00,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:00,330 INFO L93 Difference]: Finished difference Result 144 states and 182 transitions. [2022-12-13 21:10:00,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 182 transitions. [2022-12-13 21:10:00,333 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2022-12-13 21:10:00,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 144 states and 182 transitions. [2022-12-13 21:10:00,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2022-12-13 21:10:00,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2022-12-13 21:10:00,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 182 transitions. [2022-12-13 21:10:00,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:10:00,336 INFO L218 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2022-12-13 21:10:00,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 182 transitions. [2022-12-13 21:10:00,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-12-13 21:10:00,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.2638888888888888) internal successors, (182), 143 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:10:00,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2022-12-13 21:10:00,342 INFO L240 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2022-12-13 21:10:00,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:10:00,343 INFO L428 stractBuchiCegarLoop]: Abstraction has 144 states and 182 transitions. [2022-12-13 21:10:00,343 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 21:10:00,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 182 transitions. [2022-12-13 21:10:00,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2022-12-13 21:10:00,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:10:00,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:10:00,344 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:00,345 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:00,345 INFO L748 eck$LassoCheckResult]: Stem: 529#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 530#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 520#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 521#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 517#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 518#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 469#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 470#L565-2 [2022-12-13 21:10:00,345 INFO L750 eck$LassoCheckResult]: Loop: 470#L565-2 assume !false; 546#L566 assume test_~splverifierCounter~0#1 < 4; 547#L567 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 495#L575 assume !(0 != test_~tmp~4#1); 497#L575-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 485#L585 assume !(0 != test_~tmp___0~0#1); 487#L585-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 549#L595 assume 0 != test_~tmp___2~0#1; 491#L601-2 assume { :begin_inline_timeShift } true; 492#L730 assume !(0 != ~pumpRunning~0); 560#L730-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 512#L762 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 493#L708 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 494#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 506#L864 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 553#L864-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 539#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 476#L766 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 477#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 490#L762-1 assume { :end_inline_processEnvironment } true; 608#L737-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 607#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 605#L892 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 502#L892-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 503#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 470#L565-2 [2022-12-13 21:10:00,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:00,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 21:10:00,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:00,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735076020] [2022-12-13 21:10:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:00,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:10:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:10:00,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:00,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1748467795, now seen corresponding path program 1 times [2022-12-13 21:10:00,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:00,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675014238] [2022-12-13 21:10:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:00,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:00,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:10:00,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:00,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675014238] [2022-12-13 21:10:00,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675014238] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:00,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:00,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:10:00,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979017488] [2022-12-13 21:10:00,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:00,391 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:10:00,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:00,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:10:00,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:10:00,392 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:10:00,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:00,440 INFO L93 Difference]: Finished difference Result 406 states and 508 transitions. [2022-12-13 21:10:00,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 406 states and 508 transitions. [2022-12-13 21:10:00,445 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 298 [2022-12-13 21:10:00,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 406 states to 406 states and 508 transitions. [2022-12-13 21:10:00,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 406 [2022-12-13 21:10:00,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 406 [2022-12-13 21:10:00,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 406 states and 508 transitions. [2022-12-13 21:10:00,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:10:00,450 INFO L218 hiAutomatonCegarLoop]: Abstraction has 406 states and 508 transitions. [2022-12-13 21:10:00,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states and 508 transitions. [2022-12-13 21:10:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 150. [2022-12-13 21:10:00,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.2533333333333334) internal successors, (188), 149 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:10:00,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 188 transitions. [2022-12-13 21:10:00,458 INFO L240 hiAutomatonCegarLoop]: Abstraction has 150 states and 188 transitions. [2022-12-13 21:10:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:10:00,458 INFO L428 stractBuchiCegarLoop]: Abstraction has 150 states and 188 transitions. [2022-12-13 21:10:00,459 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 21:10:00,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 188 transitions. [2022-12-13 21:10:00,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-12-13 21:10:00,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:10:00,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:10:00,460 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:00,460 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:00,460 INFO L748 eck$LassoCheckResult]: Stem: 1089#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1090#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1080#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1081#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1077#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1078#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1029#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1030#L565-2 [2022-12-13 21:10:00,460 INFO L750 eck$LassoCheckResult]: Loop: 1030#L565-2 assume !false; 1108#L566 assume test_~splverifierCounter~0#1 < 4; 1109#L567 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1056#L575 assume !(0 != test_~tmp~4#1); 1058#L575-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1045#L585 assume !(0 != test_~tmp___0~0#1); 1047#L585-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1111#L595 assume 0 != test_~tmp___2~0#1; 1051#L601-2 assume { :begin_inline_timeShift } true; 1052#L730 assume !(0 != ~pumpRunning~0); 1126#L730-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1072#L762 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1053#L708 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1054#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 1116#L864 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1117#L864-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1100#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 1036#L766 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1037#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1050#L762-1 assume { :end_inline_processEnvironment } true; 1175#L737-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1174#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 1172#L892 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 1170#L892-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1169#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1030#L565-2 [2022-12-13 21:10:00,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:00,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 21:10:00,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:00,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501415593] [2022-12-13 21:10:00,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:00,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:10:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:10:00,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:00,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1047403217, now seen corresponding path program 1 times [2022-12-13 21:10:00,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:00,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831513390] [2022-12-13 21:10:00,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:00,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:10:00,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:00,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831513390] [2022-12-13 21:10:00,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831513390] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:00,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:00,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:10:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437868341] [2022-12-13 21:10:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:00,548 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:10:00,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:00,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:10:00,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:10:00,549 INFO L87 Difference]: Start difference. First operand 150 states and 188 transitions. cyclomatic complexity: 40 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:10:00,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:00,611 INFO L93 Difference]: Finished difference Result 345 states and 434 transitions. [2022-12-13 21:10:00,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 345 states and 434 transitions. [2022-12-13 21:10:00,613 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 252 [2022-12-13 21:10:00,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 345 states to 345 states and 434 transitions. [2022-12-13 21:10:00,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 345 [2022-12-13 21:10:00,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 345 [2022-12-13 21:10:00,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 345 states and 434 transitions. [2022-12-13 21:10:00,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:10:00,616 INFO L218 hiAutomatonCegarLoop]: Abstraction has 345 states and 434 transitions. [2022-12-13 21:10:00,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states and 434 transitions. [2022-12-13 21:10:00,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 159. [2022-12-13 21:10:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.2389937106918238) internal successors, (197), 158 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:10:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 197 transitions. [2022-12-13 21:10:00,622 INFO L240 hiAutomatonCegarLoop]: Abstraction has 159 states and 197 transitions. [2022-12-13 21:10:00,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:10:00,623 INFO L428 stractBuchiCegarLoop]: Abstraction has 159 states and 197 transitions. [2022-12-13 21:10:00,623 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 21:10:00,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 197 transitions. [2022-12-13 21:10:00,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2022-12-13 21:10:00,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:10:00,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:10:00,625 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:00,625 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:00,625 INFO L748 eck$LassoCheckResult]: Stem: 1598#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1599#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1589#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1590#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1586#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1587#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1538#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1539#L565-2 [2022-12-13 21:10:00,625 INFO L750 eck$LassoCheckResult]: Loop: 1539#L565-2 assume !false; 1614#L566 assume test_~splverifierCounter~0#1 < 4; 1615#L567 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1693#L575 assume !(0 != test_~tmp~4#1); 1568#L575-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1553#L585 assume !(0 != test_~tmp___0~0#1); 1555#L585-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1617#L595 assume 0 != test_~tmp___2~0#1; 1560#L601-2 assume { :begin_inline_timeShift } true; 1561#L730 assume !(0 != ~pumpRunning~0); 1631#L730-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1581#L762 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1562#L708 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1564#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 1646#L864 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1644#L864-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1642#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 1640#L766 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1558#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1559#L762-1 assume { :end_inline_processEnvironment } true; 1603#L737-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1606#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 1627#L892 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 1557#L892-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1572#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1539#L565-2 [2022-12-13 21:10:00,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:00,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-12-13 21:10:00,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:00,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073583568] [2022-12-13 21:10:00,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:00,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:10:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:10:00,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:00,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1161661781, now seen corresponding path program 1 times [2022-12-13 21:10:00,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:00,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367752224] [2022-12-13 21:10:00,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:00,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:10:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:10:00,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:00,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1882300775, now seen corresponding path program 1 times [2022-12-13 21:10:00,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:00,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719237802] [2022-12-13 21:10:00,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:00,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:10:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:00,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:10:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:01,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:10:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:01,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 09:10:01 BoogieIcfgContainer [2022-12-13 21:10:01,483 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 21:10:01,483 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:10:01,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:10:01,483 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:10:01,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:09:59" (3/4) ... [2022-12-13 21:10:01,485 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 21:10:01,522 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:10:01,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:10:01,523 INFO L158 Benchmark]: Toolchain (without parser) took 2737.73ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 124.4MB in the beginning and 127.4MB in the end (delta: -3.0MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2022-12-13 21:10:01,524 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:10:01,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.60ms. Allocated memory is still 161.5MB. Free memory was 124.4MB in the beginning and 106.3MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 21:10:01,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.54ms. Allocated memory is still 161.5MB. Free memory was 106.3MB in the beginning and 103.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:10:01,525 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 161.5MB. Free memory was 103.9MB in the beginning and 102.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:10:01,525 INFO L158 Benchmark]: RCFGBuilder took 414.42ms. Allocated memory is still 161.5MB. Free memory was 102.1MB in the beginning and 128.6MB in the end (delta: -26.6MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2022-12-13 21:10:01,526 INFO L158 Benchmark]: BuchiAutomizer took 1854.21ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 128.6MB in the beginning and 129.5MB in the end (delta: -870.6kB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-12-13 21:10:01,526 INFO L158 Benchmark]: Witness Printer took 39.75ms. Allocated memory is still 195.0MB. Free memory was 129.5MB in the beginning and 127.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:10:01,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.60ms. Allocated memory is still 161.5MB. Free memory was 124.4MB in the beginning and 106.3MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.54ms. Allocated memory is still 161.5MB. Free memory was 106.3MB in the beginning and 103.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 161.5MB. Free memory was 103.9MB in the beginning and 102.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.42ms. Allocated memory is still 161.5MB. Free memory was 102.1MB in the beginning and 128.6MB in the end (delta: -26.6MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 1854.21ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 128.6MB in the beginning and 129.5MB in the end (delta: -870.6kB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Witness Printer took 39.75ms. Allocated memory is still 195.0MB. Free memory was 129.5MB in the beginning and 127.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 442 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1146 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1146 mSDsluCounter, 1520 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 852 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 668 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 565]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L625] int waterLevel = 1; [L626] int methaneLevelCritical = 0; [L722] int pumpRunning = 0; [L723] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) [L608] CALL timeShift() [L730] COND FALSE !(\read(pumpRunning)) [L737] COND TRUE \read(systemActive) [L739] CALL processEnvironment() [L759] int tmp ; [L762] COND TRUE ! pumpRunning [L764] CALL, EXPR isHighWaterLevel() [L856] int retValue_acc ; [L857] int tmp ; [L858] int tmp___0 ; [L862] CALL, EXPR isHighWaterSensorDry() [L705] int retValue_acc ; [L708] COND TRUE waterLevel < 2 [L709] retValue_acc = 1 [L710] return (retValue_acc); [L862] RET, EXPR isHighWaterSensorDry() [L862] tmp = isHighWaterSensorDry() [L864] COND TRUE \read(tmp) [L865] tmp___0 = 0 [L869] retValue_acc = tmp___0 [L870] return (retValue_acc); [L764] RET, EXPR isHighWaterLevel() [L764] tmp = isHighWaterLevel() [L766] COND FALSE !(\read(tmp)) [L772] FCALL processEnvironment__wrappee__base() [L739] RET processEnvironment() [L745] CALL __utac_acc__Specification4_spec__1() [L885] int tmp ; [L886] int tmp___0 ; [L890] CALL, EXPR getWaterLevel() [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); [L890] RET, EXPR getWaterLevel() [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) [L745] RET __utac_acc__Specification4_spec__1() [L608] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 565]: 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; [L416] int cleanupTimeShifts = 4; [L625] int waterLevel = 1; [L626] int methaneLevelCritical = 0; [L722] int pumpRunning = 0; [L723] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) [L608] CALL timeShift() [L730] COND FALSE !(\read(pumpRunning)) [L737] COND TRUE \read(systemActive) [L739] CALL processEnvironment() [L759] int tmp ; [L762] COND TRUE ! pumpRunning [L764] CALL, EXPR isHighWaterLevel() [L856] int retValue_acc ; [L857] int tmp ; [L858] int tmp___0 ; [L862] CALL, EXPR isHighWaterSensorDry() [L705] int retValue_acc ; [L708] COND TRUE waterLevel < 2 [L709] retValue_acc = 1 [L710] return (retValue_acc); [L862] RET, EXPR isHighWaterSensorDry() [L862] tmp = isHighWaterSensorDry() [L864] COND TRUE \read(tmp) [L865] tmp___0 = 0 [L869] retValue_acc = tmp___0 [L870] return (retValue_acc); [L764] RET, EXPR isHighWaterLevel() [L764] tmp = isHighWaterLevel() [L766] COND FALSE !(\read(tmp)) [L772] FCALL processEnvironment__wrappee__base() [L739] RET processEnvironment() [L745] CALL __utac_acc__Specification4_spec__1() [L885] int tmp ; [L886] int tmp___0 ; [L890] CALL, EXPR getWaterLevel() [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); [L890] RET, EXPR getWaterLevel() [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) [L745] RET __utac_acc__Specification4_spec__1() [L608] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 21:10:01,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be069e4b-6725-418c-9b0f-077c9376e8f7/bin/uautomizer-uyxdKDjOR8/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)