./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.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_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/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_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/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_04da36e9-6186-4fd4-a314-2805004a0092/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 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 --- 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 17:52:01,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:52:01,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:52:01,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:52:01,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:52:01,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:52:01,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:52:01,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:52:01,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:52:01,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:52:01,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:52:01,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:52:01,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:52:01,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:52:01,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:52:01,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:52:01,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:52:01,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:52:01,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:52:01,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:52:01,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:52:01,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:52:01,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:52:01,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:52:01,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:52:01,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:52:01,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:52:01,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:52:01,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:52:01,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:52:01,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:52:01,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:52:01,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:52:01,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:52:01,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:52:01,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:52:01,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:52:01,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:52:01,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:52:01,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:52:01,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:52:01,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 17:52:01,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:52:01,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:52:01,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:52:01,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:52:01,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:52:01,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:52:01,621 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:52:01,621 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 17:52:01,621 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 17:52:01,621 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 17:52:01,621 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 17:52:01,622 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 17:52:01,622 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 17:52:01,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:52:01,622 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:52:01,622 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:52:01,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:52:01,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:52:01,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:52:01,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 17:52:01,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 17:52:01,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 17:52:01,624 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:52:01,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:52:01,624 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 17:52:01,624 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:52:01,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 17:52:01,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:52:01,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:52:01,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:52:01,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:52:01,626 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 17:52:01,626 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_04da36e9-6186-4fd4-a314-2805004a0092/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 [2022-12-13 17:52:01,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:52:01,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:52:01,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:52:01,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:52:01,841 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:52:01,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2022-12-13 17:52:04,338 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:52:04,517 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:52:04,518 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2022-12-13 17:52:04,525 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/data/14a09aefb/e678e008b07345dea1254804c7b0f5a0/FLAG33e63a6ae [2022-12-13 17:52:04,922 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/data/14a09aefb/e678e008b07345dea1254804c7b0f5a0 [2022-12-13 17:52:04,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:52:04,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:52:04,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:52:04,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:52:04,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:52:04,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:52:04" (1/1) ... [2022-12-13 17:52:04,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6c2dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:04, skipping insertion in model container [2022-12-13 17:52:04,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:52:04" (1/1) ... [2022-12-13 17:52:04,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:52:04,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:52:05,107 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_04da36e9-6186-4fd4-a314-2805004a0092/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2022-12-13 17:52:05,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:52:05,149 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:52:05,172 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_04da36e9-6186-4fd4-a314-2805004a0092/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2022-12-13 17:52:05,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:52:05,206 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:52:05,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05 WrapperNode [2022-12-13 17:52:05,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:52:05,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:52:05,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:52:05,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:52:05,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,244 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 54, calls inlined = 80, statements flattened = 566 [2022-12-13 17:52:05,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:52:05,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:52:05,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:52:05,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:52:05,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,265 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:52:05,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:52:05,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:52:05,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:52:05,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (1/1) ... [2022-12-13 17:52:05,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:52:05,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:52:05,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:52:05,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 17:52:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:52:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:52:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:52:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:52:05,400 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:52:05,402 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:52:05,759 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:52:05,767 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:52:05,767 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 17:52:05,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:52:05 BoogieIcfgContainer [2022-12-13 17:52:05,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:52:05,771 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 17:52:05,771 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 17:52:05,774 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 17:52:05,775 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:52:05,775 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 05:52:04" (1/3) ... [2022-12-13 17:52:05,776 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2556809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 05:52:05, skipping insertion in model container [2022-12-13 17:52:05,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:52:05,776 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:52:05" (2/3) ... [2022-12-13 17:52:05,777 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2556809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 05:52:05, skipping insertion in model container [2022-12-13 17:52:05,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:52:05,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:52:05" (3/3) ... [2022-12-13 17:52:05,778 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2022-12-13 17:52:05,831 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 17:52:05,831 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 17:52:05,831 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 17:52:05,831 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 17:52:05,831 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 17:52:05,831 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 17:52:05,831 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 17:52:05,832 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 17:52:05,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 169 states have internal predecessors, (234), 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 17:52:05,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-12-13 17:52:05,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:52:05,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:52:05,867 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:05,867 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 17:52:05,867 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 17:52:05,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 169 states have internal predecessors, (234), 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 17:52:05,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-12-13 17:52:05,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:52:05,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:52:05,875 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:05,875 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 17:52:05,880 INFO L748 eck$LassoCheckResult]: Stem: 41#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 34#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 137#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; 118#valid_product_returnLabel#1true main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 101#L609true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 89#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 135#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 52#L65-2true [2022-12-13 17:52:05,880 INFO L750 eck$LassoCheckResult]: Loop: 52#L65-2true assume !false; 44#L66true assume test_~splverifierCounter~0#1 < 4; 156#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 80#L75true assume !(0 != test_~tmp~0#1); 154#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 45#L85true assume !(0 != test_~tmp___0~0#1); 8#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 116#L95true assume 0 != test_~tmp___2~0#1; 111#L101-2true assume { :begin_inline_timeShift } true; 40#L139true assume !(0 != ~pumpRunning~0); 28#L139-2true assume !(0 != ~systemActive~0); 30#L146-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 160#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 163#L362true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 36#L362-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 81#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 52#L65-2true [2022-12-13 17:52:05,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:05,885 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-12-13 17:52:05,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:05,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267019660] [2022-12-13 17:52:05,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:05,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:05,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:52:06,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1250870358, now seen corresponding path program 1 times [2022-12-13 17:52:06,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121867814] [2022-12-13 17:52:06,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:52:06,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1413157741, now seen corresponding path program 1 times [2022-12-13 17:52:06,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350160968] [2022-12-13 17:52:06,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:06,200 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 17:52:06,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:52:06,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350160968] [2022-12-13 17:52:06,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350160968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:52:06,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:52:06,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:52:06,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109198892] [2022-12-13 17:52:06,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:52:06,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:52:06,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:52:06,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:52:06,337 INFO L87 Difference]: Start difference. First operand has 170 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 169 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:52:06,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:52:06,446 INFO L93 Difference]: Finished difference Result 393 states and 522 transitions. [2022-12-13 17:52:06,448 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 393 states and 522 transitions. [2022-12-13 17:52:06,454 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 253 [2022-12-13 17:52:06,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 393 states to 363 states and 492 transitions. [2022-12-13 17:52:06,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2022-12-13 17:52:06,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2022-12-13 17:52:06,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 492 transitions. [2022-12-13 17:52:06,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:52:06,465 INFO L218 hiAutomatonCegarLoop]: Abstraction has 363 states and 492 transitions. [2022-12-13 17:52:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 492 transitions. [2022-12-13 17:52:06,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 212. [2022-12-13 17:52:06,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 211 states have internal predecessors, (287), 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 17:52:06,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 287 transitions. [2022-12-13 17:52:06,503 INFO L240 hiAutomatonCegarLoop]: Abstraction has 212 states and 287 transitions. [2022-12-13 17:52:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:52:06,507 INFO L428 stractBuchiCegarLoop]: Abstraction has 212 states and 287 transitions. [2022-12-13 17:52:06,507 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 17:52:06,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 287 transitions. [2022-12-13 17:52:06,508 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2022-12-13 17:52:06,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:52:06,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:52:06,509 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:06,509 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] [2022-12-13 17:52:06,509 INFO L748 eck$LassoCheckResult]: Stem: 645#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 646#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 635#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 636#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; 723#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 708#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 696#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 697#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 664#L65-2 [2022-12-13 17:52:06,509 INFO L750 eck$LassoCheckResult]: Loop: 664#L65-2 assume !false; 651#L66 assume test_~splverifierCounter~0#1 < 4; 652#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 689#L75 assume !(0 != test_~tmp~0#1); 690#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 654#L85 assume !(0 != test_~tmp___0~0#1); 589#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 590#L95 assume 0 != test_~tmp___2~0#1; 717#L101-2 assume { :begin_inline_timeShift } true; 643#L139 assume !(0 != ~pumpRunning~0); 625#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 626#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 705#L171-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 585#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 586#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 610#L197-1 assume { :end_inline_processEnvironment } true; 611#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 628#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 737#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 620#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 637#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 664#L65-2 [2022-12-13 17:52:06,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,510 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-12-13 17:52:06,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652741399] [2022-12-13 17:52:06,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:52:06,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1497844822, now seen corresponding path program 1 times [2022-12-13 17:52:06,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937156108] [2022-12-13 17:52:06,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:06,535 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 17:52:06,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:52:06,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937156108] [2022-12-13 17:52:06,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937156108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:52:06,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:52:06,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:52:06,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419865907] [2022-12-13 17:52:06,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:52:06,536 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 17:52:06,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:52:06,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:52:06,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:52:06,537 INFO L87 Difference]: Start difference. First operand 212 states and 287 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 17:52:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:52:06,588 INFO L93 Difference]: Finished difference Result 265 states and 344 transitions. [2022-12-13 17:52:06,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 344 transitions. [2022-12-13 17:52:06,591 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 189 [2022-12-13 17:52:06,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 265 states and 344 transitions. [2022-12-13 17:52:06,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2022-12-13 17:52:06,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2022-12-13 17:52:06,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 344 transitions. [2022-12-13 17:52:06,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:52:06,593 INFO L218 hiAutomatonCegarLoop]: Abstraction has 265 states and 344 transitions. [2022-12-13 17:52:06,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 344 transitions. [2022-12-13 17:52:06,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2022-12-13 17:52:06,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 264 states have internal predecessors, (344), 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 17:52:06,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 344 transitions. [2022-12-13 17:52:06,600 INFO L240 hiAutomatonCegarLoop]: Abstraction has 265 states and 344 transitions. [2022-12-13 17:52:06,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:52:06,600 INFO L428 stractBuchiCegarLoop]: Abstraction has 265 states and 344 transitions. [2022-12-13 17:52:06,601 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 17:52:06,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 265 states and 344 transitions. [2022-12-13 17:52:06,602 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 189 [2022-12-13 17:52:06,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:52:06,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:52:06,602 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:06,602 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, 1, 1] [2022-12-13 17:52:06,603 INFO L748 eck$LassoCheckResult]: Stem: 1126#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1118#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1119#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; 1209#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1193#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1180#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1181#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1174#L65-2 [2022-12-13 17:52:06,603 INFO L750 eck$LassoCheckResult]: Loop: 1174#L65-2 assume !false; 1289#L66 assume test_~splverifierCounter~0#1 < 4; 1290#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1172#L75 assume !(0 != test_~tmp~0#1); 1173#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1135#L85 assume !(0 != test_~tmp___0~0#1); 1073#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1074#L95 assume 0 != test_~tmp___2~0#1; 1201#L101-2 assume { :begin_inline_timeShift } true; 1125#L139 assume !(0 != ~pumpRunning~0); 1108#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1109#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1190#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1184#L506-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1144#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1145#L299-3 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1123#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1124#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1162#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1138#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1139#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1092#L197-1 assume { :end_inline_processEnvironment } true; 1093#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1111#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 1227#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 1103#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1120#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1174#L65-2 [2022-12-13 17:52:06,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,603 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-12-13 17:52:06,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354709620] [2022-12-13 17:52:06,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:52:06,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1757303124, now seen corresponding path program 1 times [2022-12-13 17:52:06,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628888952] [2022-12-13 17:52:06,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:06,645 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 17:52:06,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:52:06,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628888952] [2022-12-13 17:52:06,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628888952] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:52:06,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:52:06,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:52:06,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216789020] [2022-12-13 17:52:06,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:52:06,647 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 17:52:06,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:52:06,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:52:06,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:52:06,648 INFO L87 Difference]: Start difference. First operand 265 states and 344 transitions. cyclomatic complexity: 82 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:52:06,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:52:06,716 INFO L93 Difference]: Finished difference Result 516 states and 662 transitions. [2022-12-13 17:52:06,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 516 states and 662 transitions. [2022-12-13 17:52:06,721 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 374 [2022-12-13 17:52:06,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 516 states to 516 states and 662 transitions. [2022-12-13 17:52:06,723 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 516 [2022-12-13 17:52:06,724 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 516 [2022-12-13 17:52:06,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 516 states and 662 transitions. [2022-12-13 17:52:06,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:52:06,725 INFO L218 hiAutomatonCegarLoop]: Abstraction has 516 states and 662 transitions. [2022-12-13 17:52:06,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states and 662 transitions. [2022-12-13 17:52:06,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 277. [2022-12-13 17:52:06,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 277 states have (on average 1.2851985559566788) internal successors, (356), 276 states have internal predecessors, (356), 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 17:52:06,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 356 transitions. [2022-12-13 17:52:06,733 INFO L240 hiAutomatonCegarLoop]: Abstraction has 277 states and 356 transitions. [2022-12-13 17:52:06,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:52:06,733 INFO L428 stractBuchiCegarLoop]: Abstraction has 277 states and 356 transitions. [2022-12-13 17:52:06,734 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 17:52:06,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states and 356 transitions. [2022-12-13 17:52:06,735 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-12-13 17:52:06,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:52:06,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:52:06,735 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:06,735 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, 1, 1] [2022-12-13 17:52:06,735 INFO L748 eck$LassoCheckResult]: Stem: 1921#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1922#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1911#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1912#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; 2015#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1996#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1980#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1981#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2023#L65-2 [2022-12-13 17:52:06,736 INFO L750 eck$LassoCheckResult]: Loop: 2023#L65-2 assume !false; 2109#L66 assume test_~splverifierCounter~0#1 < 4; 2108#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2106#L75 assume !(0 != test_~tmp~0#1); 2104#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2103#L85 assume !(0 != test_~tmp___0~0#1); 2102#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2013#L95 assume 0 != test_~tmp___2~0#1; 2005#L101-2 assume { :begin_inline_timeShift } true; 1919#L139 assume !(0 != ~pumpRunning~0); 1920#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1991#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1992#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1984#L506-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1985#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 2045#L299-3 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1917#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1918#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1961#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1932#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1933#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1883#L197-1 assume { :end_inline_processEnvironment } true; 1884#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2131#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 2129#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 1913#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1914#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2023#L65-2 [2022-12-13 17:52:06,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,736 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-12-13 17:52:06,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345721552] [2022-12-13 17:52:06,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:52:06,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1526546922, now seen corresponding path program 1 times [2022-12-13 17:52:06,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030247077] [2022-12-13 17:52:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:06,794 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 17:52:06,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:52:06,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030247077] [2022-12-13 17:52:06,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030247077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:52:06,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:52:06,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:52:06,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538639791] [2022-12-13 17:52:06,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:52:06,795 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 17:52:06,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:52:06,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:52:06,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:52:06,796 INFO L87 Difference]: Start difference. First operand 277 states and 356 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:52:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:52:06,904 INFO L93 Difference]: Finished difference Result 886 states and 1142 transitions. [2022-12-13 17:52:06,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 886 states and 1142 transitions. [2022-12-13 17:52:06,910 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 656 [2022-12-13 17:52:06,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 886 states to 886 states and 1142 transitions. [2022-12-13 17:52:06,915 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 886 [2022-12-13 17:52:06,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 886 [2022-12-13 17:52:06,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 886 states and 1142 transitions. [2022-12-13 17:52:06,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:52:06,918 INFO L218 hiAutomatonCegarLoop]: Abstraction has 886 states and 1142 transitions. [2022-12-13 17:52:06,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states and 1142 transitions. [2022-12-13 17:52:06,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 295. [2022-12-13 17:52:06,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 295 states have (on average 1.2677966101694915) internal successors, (374), 294 states have internal predecessors, (374), 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 17:52:06,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 374 transitions. [2022-12-13 17:52:06,932 INFO L240 hiAutomatonCegarLoop]: Abstraction has 295 states and 374 transitions. [2022-12-13 17:52:06,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:52:06,933 INFO L428 stractBuchiCegarLoop]: Abstraction has 295 states and 374 transitions. [2022-12-13 17:52:06,933 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 17:52:06,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 295 states and 374 transitions. [2022-12-13 17:52:06,935 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 209 [2022-12-13 17:52:06,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:52:06,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:52:06,936 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:06,936 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:06,936 INFO L748 eck$LassoCheckResult]: Stem: 3096#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3097#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 3088#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3089#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; 3189#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 3169#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 3152#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3153#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3199#L65-2 [2022-12-13 17:52:06,936 INFO L750 eck$LassoCheckResult]: Loop: 3199#L65-2 assume !false; 3304#L66 assume test_~splverifierCounter~0#1 < 4; 3303#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 3301#L75 assume !(0 != test_~tmp~0#1); 3215#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 3104#L85 assume !(0 != test_~tmp___0~0#1); 3059#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 3295#L95 assume 0 != test_~tmp___2~0#1; 3179#L101-2 assume { :begin_inline_timeShift } true; 3095#L139 assume !(0 != ~pumpRunning~0); 3077#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3078#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3163#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3156#L506-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3157#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 3234#L299-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3093#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3094#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 3229#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3106#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3107#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3060#L197-1 assume { :end_inline_processEnvironment } true; 3061#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 3311#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 3309#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 3306#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3305#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3199#L65-2 [2022-12-13 17:52:06,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,937 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-12-13 17:52:06,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488113928] [2022-12-13 17:52:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:06,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:52:06,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:06,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1268381484, now seen corresponding path program 1 times [2022-12-13 17:52:06,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:06,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096868278] [2022-12-13 17:52:06,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:06,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:06,982 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 17:52:06,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:52:06,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096868278] [2022-12-13 17:52:06,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096868278] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:52:06,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:52:06,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:52:06,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131883371] [2022-12-13 17:52:06,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:52:06,983 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 17:52:06,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:52:06,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:52:06,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:52:06,984 INFO L87 Difference]: Start difference. First operand 295 states and 374 transitions. cyclomatic complexity: 82 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:52:07,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:52:07,050 INFO L93 Difference]: Finished difference Result 504 states and 638 transitions. [2022-12-13 17:52:07,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 504 states and 638 transitions. [2022-12-13 17:52:07,053 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 366 [2022-12-13 17:52:07,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 504 states to 504 states and 638 transitions. [2022-12-13 17:52:07,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 504 [2022-12-13 17:52:07,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 504 [2022-12-13 17:52:07,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 504 states and 638 transitions. [2022-12-13 17:52:07,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:52:07,057 INFO L218 hiAutomatonCegarLoop]: Abstraction has 504 states and 638 transitions. [2022-12-13 17:52:07,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states and 638 transitions. [2022-12-13 17:52:07,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 295. [2022-12-13 17:52:07,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 295 states have (on average 1.2474576271186442) internal successors, (368), 294 states have internal predecessors, (368), 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 17:52:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 368 transitions. [2022-12-13 17:52:07,065 INFO L240 hiAutomatonCegarLoop]: Abstraction has 295 states and 368 transitions. [2022-12-13 17:52:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:52:07,066 INFO L428 stractBuchiCegarLoop]: Abstraction has 295 states and 368 transitions. [2022-12-13 17:52:07,066 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 17:52:07,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 295 states and 368 transitions. [2022-12-13 17:52:07,068 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 209 [2022-12-13 17:52:07,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:52:07,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:52:07,069 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:07,069 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, 1, 1] [2022-12-13 17:52:07,069 INFO L748 eck$LassoCheckResult]: Stem: 3906#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3907#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 3896#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3897#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; 3995#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 3977#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 3961#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3962#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3923#L65-2 [2022-12-13 17:52:07,069 INFO L750 eck$LassoCheckResult]: Loop: 3923#L65-2 assume !false; 3911#L66 assume test_~splverifierCounter~0#1 < 4; 3912#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 3953#L75 assume !(0 != test_~tmp~0#1); 3955#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 3914#L85 assume !(0 != test_~tmp___0~0#1); 3847#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 3848#L95 assume 0 != test_~tmp___2~0#1; 3986#L101-2 assume { :begin_inline_timeShift } true; 3905#L139 assume !(0 != ~pumpRunning~0); 3885#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3886#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3972#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3965#L506-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3966#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 4035#L299-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4034#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 4031#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 4028#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3916#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3917#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3868#L197-1 assume { :end_inline_processEnvironment } true; 3869#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 4125#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 4123#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 3898#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3899#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3923#L65-2 [2022-12-13 17:52:07,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2022-12-13 17:52:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:07,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443248921] [2022-12-13 17:52:07,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:07,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:07,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:07,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:52:07,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:07,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2015468562, now seen corresponding path program 1 times [2022-12-13 17:52:07,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:07,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428684934] [2022-12-13 17:52:07,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:07,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:07,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:07,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:52:07,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:07,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1844693147, now seen corresponding path program 1 times [2022-12-13 17:52:07,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:07,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682503345] [2022-12-13 17:52:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:07,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:07,107 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:07,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:52:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:07,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:52:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:52:07,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 05:52:07 BoogieIcfgContainer [2022-12-13 17:52:07,918 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 17:52:07,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:52:07,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:52:07,918 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:52:07,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:52:05" (3/4) ... [2022-12-13 17:52:07,920 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 17:52:07,958 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:52:07,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:52:07,959 INFO L158 Benchmark]: Toolchain (without parser) took 3031.01ms. Allocated memory is still 127.9MB. Free memory was 84.9MB in the beginning and 58.9MB in the end (delta: 26.0MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-12-13 17:52:07,959 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:52:07,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.97ms. Allocated memory is still 127.9MB. Free memory was 84.9MB in the beginning and 66.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 17:52:07,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.75ms. Allocated memory is still 127.9MB. Free memory was 66.0MB in the beginning and 62.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:52:07,960 INFO L158 Benchmark]: Boogie Preprocessor took 24.32ms. Allocated memory is still 127.9MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:52:07,961 INFO L158 Benchmark]: RCFGBuilder took 500.90ms. Allocated memory is still 127.9MB. Free memory was 60.6MB in the beginning and 85.2MB in the end (delta: -24.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-12-13 17:52:07,961 INFO L158 Benchmark]: BuchiAutomizer took 2146.82ms. Allocated memory is still 127.9MB. Free memory was 85.2MB in the beginning and 62.1MB in the end (delta: 23.1MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-12-13 17:52:07,961 INFO L158 Benchmark]: Witness Printer took 40.51ms. Allocated memory is still 127.9MB. Free memory was 62.1MB in the beginning and 58.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:52:07,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.97ms. Allocated memory is still 127.9MB. Free memory was 84.9MB in the beginning and 66.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.75ms. Allocated memory is still 127.9MB. Free memory was 66.0MB in the beginning and 62.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.32ms. Allocated memory is still 127.9MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 500.90ms. Allocated memory is still 127.9MB. Free memory was 60.6MB in the beginning and 85.2MB in the end (delta: -24.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2146.82ms. Allocated memory is still 127.9MB. Free memory was 85.2MB in the beginning and 62.1MB in the end (delta: 23.1MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Witness Printer took 40.51ms. Allocated memory is still 127.9MB. Free memory was 62.1MB in the beginning and 58.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 295 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1190 StatesRemovedByMinimization, 4 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, 2498 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2498 mSDsluCounter, 3955 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2494 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 1461 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 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: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L345] int methAndRunningLastTime ; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L526] int cleanupTimeShifts = 4; [L801] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L600] int retValue_acc ; [L601] int tmp ; [L605] FCALL select_helpers() [L606] FCALL select_features() [L607] CALL, EXPR valid_product() [L413] int retValue_acc ; [L416] retValue_acc = 1 [L417] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L607] RET, EXPR valid_product() [L607] tmp = valid_product() [L609] COND TRUE \read(tmp) [L611] FCALL setup() [L612] CALL runTest() [L593] CALL __utac_acc__Specification2_spec__1() [L350] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L593] RET __utac_acc__Specification2_spec__1() [L594] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] return (retValue_acc); [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND TRUE \read(tmp) [L300] tmp___0 = 0 [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification2_spec__2() [L355] int tmp ; [L356] int tmp___0 ; [L360] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L360] RET, EXPR isMethaneLevelCritical() [L360] tmp = isMethaneLevelCritical() [L362] COND FALSE !(\read(tmp)) [L378] methAndRunningLastTime = 0 [L154] RET __utac_acc__Specification2_spec__2() [L110] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L345] int methAndRunningLastTime ; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L526] int cleanupTimeShifts = 4; [L801] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L600] int retValue_acc ; [L601] int tmp ; [L605] FCALL select_helpers() [L606] FCALL select_features() [L607] CALL, EXPR valid_product() [L413] int retValue_acc ; [L416] retValue_acc = 1 [L417] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L607] RET, EXPR valid_product() [L607] tmp = valid_product() [L609] COND TRUE \read(tmp) [L611] FCALL setup() [L612] CALL runTest() [L593] CALL __utac_acc__Specification2_spec__1() [L350] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L593] RET __utac_acc__Specification2_spec__1() [L594] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] return (retValue_acc); [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND TRUE \read(tmp) [L300] tmp___0 = 0 [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification2_spec__2() [L355] int tmp ; [L356] int tmp___0 ; [L360] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L360] RET, EXPR isMethaneLevelCritical() [L360] tmp = isMethaneLevelCritical() [L362] COND FALSE !(\read(tmp)) [L378] methAndRunningLastTime = 0 [L154] RET __utac_acc__Specification2_spec__2() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 17:52:07,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04da36e9-6186-4fd4-a314-2805004a0092/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)