./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 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_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:20:08,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:20:08,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-12 02:20:08,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:20:08,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:20:08,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:20:08,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:20:08,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:20:08,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:20:08,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:20:08,399 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:20:08,400 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:20:08,400 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:20:08,402 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:20:08,402 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:20:08,403 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:20:08,403 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:20:08,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:20:08,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:20:08,405 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:20:08,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:20:08,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:20:08,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:20:08,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:20:08,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:20:08,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:20:08,408 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:20:08,409 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:20:08,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:20:08,410 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:20:08,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:20:08,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:20:08,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:20:08,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:20:08,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:20:08,441 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:20:08,441 INFO L153 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_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 [2023-11-12 02:20:08,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:20:08,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:20:08,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:20:08,791 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:20:08,792 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:20:08,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2023-11-12 02:20:11,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:20:12,143 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:20:12,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2023-11-12 02:20:12,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/data/8729ba609/68b4e0810a524b1eba10554f287dcc47/FLAGf17e29062 [2023-11-12 02:20:12,184 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/data/8729ba609/68b4e0810a524b1eba10554f287dcc47 [2023-11-12 02:20:12,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:20:12,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:20:12,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:12,199 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:20:12,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:20:12,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a210cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12, skipping insertion in model container [2023-11-12 02:20:12,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,265 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:20:12,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:12,625 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:20:12,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2023-11-12 02:20:12,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2023-11-12 02:20:12,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] [2023-11-12 02:20:12,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] [2023-11-12 02:20:12,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] [2023-11-12 02:20:12,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] [2023-11-12 02:20:12,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] [2023-11-12 02:20:12,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] [2023-11-12 02:20:12,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:12,767 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:20:12,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12 WrapperNode [2023-11-12 02:20:12,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:12,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:12,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:20:12,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:20:12,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,858 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 56, calls inlined = 86, statements flattened = 592 [2023-11-12 02:20:12,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:12,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:20:12,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:20:12,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:20:12,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:20:12,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:20:12,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:20:12,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:20:12,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (1/1) ... [2023-11-12 02:20:12,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:20:12,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:13,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:20:13,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:20:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:20:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:20:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:20:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:20:13,250 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:20:13,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:20:13,865 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:20:13,884 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:20:13,884 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:20:13,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:13 BoogieIcfgContainer [2023-11-12 02:20:13,887 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:20:13,888 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:20:13,888 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:20:13,892 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:20:13,893 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:20:13,893 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:20:12" (1/3) ... [2023-11-12 02:20:13,894 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@569bcc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:20:13, skipping insertion in model container [2023-11-12 02:20:13,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:20:13,894 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:12" (2/3) ... [2023-11-12 02:20:13,899 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@569bcc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:20:13, skipping insertion in model container [2023-11-12 02:20:13,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:20:13,900 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:13" (3/3) ... [2023-11-12 02:20:13,903 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2023-11-12 02:20:13,977 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:20:13,977 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:20:13,977 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:20:13,978 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:20:13,978 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:20:13,978 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:20:13,978 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:20:13,978 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:20:13,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 176 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 175 states have internal predecessors, (240), 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) [2023-11-12 02:20:14,017 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2023-11-12 02:20:14,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:20:14,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:20:14,026 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:14,026 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:14,027 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:20:14,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 176 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 175 states have internal predecessors, (240), 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) [2023-11-12 02:20:14,038 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2023-11-12 02:20:14,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:20:14,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:20:14,040 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:14,041 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:14,047 INFO L748 eck$LassoCheckResult]: Stem: 35#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 31#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 146#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 122#valid_product_returnLabel#1true main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 46#L988true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 98#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 123#L800-2true [2023-11-12 02:20:14,048 INFO L750 eck$LassoCheckResult]: Loop: 123#L800-2true assume !false; 155#L801true assume test_~splverifierCounter~0#1 < 4; 67#L802true havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 7#L810true assume !(0 != test_~tmp~8#1); 29#L810-2true havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 33#L820true assume !(0 != test_~tmp___0~3#1); 133#L820-2true havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 142#L830true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 70#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 140#L838-2true assume { :begin_inline_timeShift } true; 116#L576true assume !(0 != ~pumpRunning~0); 55#L576-2true assume !(0 != ~systemActive~0); 50#L583-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 165#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 9#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 171#L69-1true havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 87#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 123#L800-2true [2023-11-12 02:20:14,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:14,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-12 02:20:14,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:14,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711121841] [2023-11-12 02:20:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:14,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:14,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:14,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:14,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:14,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1941975181, now seen corresponding path program 1 times [2023-11-12 02:20:14,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:14,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756359168] [2023-11-12 02:20:14,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:14,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:14,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:14,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756359168] [2023-11-12 02:20:14,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756359168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:14,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:14,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:20:14,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359715427] [2023-11-12 02:20:14,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:14,397 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:20:14,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:14,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:14,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:14,444 INFO L87 Difference]: Start difference. First operand has 176 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 175 states have internal predecessors, (240), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-12 02:20:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:14,587 INFO L93 Difference]: Finished difference Result 331 states and 441 transitions. [2023-11-12 02:20:14,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 331 states and 441 transitions. [2023-11-12 02:20:14,605 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 216 [2023-11-12 02:20:14,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 331 states to 311 states and 420 transitions. [2023-11-12 02:20:14,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 311 [2023-11-12 02:20:14,622 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 311 [2023-11-12 02:20:14,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 311 states and 420 transitions. [2023-11-12 02:20:14,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:14,626 INFO L218 hiAutomatonCegarLoop]: Abstraction has 311 states and 420 transitions. [2023-11-12 02:20:14,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states and 420 transitions. [2023-11-12 02:20:14,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 308. [2023-11-12 02:20:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 308 states have (on average 1.3506493506493507) internal successors, (416), 307 states have internal predecessors, (416), 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) [2023-11-12 02:20:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 416 transitions. [2023-11-12 02:20:14,688 INFO L240 hiAutomatonCegarLoop]: Abstraction has 308 states and 416 transitions. [2023-11-12 02:20:14,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:14,693 INFO L428 stractBuchiCegarLoop]: Abstraction has 308 states and 416 transitions. [2023-11-12 02:20:14,694 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:20:14,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 416 transitions. [2023-11-12 02:20:14,699 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2023-11-12 02:20:14,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:20:14,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:20:14,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:14,704 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] [2023-11-12 02:20:14,705 INFO L748 eck$LassoCheckResult]: Stem: 566#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 567#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 560#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 561#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 666#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 584#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 585#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 642#L800-2 [2023-11-12 02:20:14,705 INFO L750 eck$LassoCheckResult]: Loop: 642#L800-2 assume !false; 667#L801 assume test_~splverifierCounter~0#1 < 4; 716#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 746#L810 assume !(0 != test_~tmp~8#1); 740#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 737#L820 assume !(0 != test_~tmp___0~3#1); 677#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 678#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 729#L838 assume !(0 != test_~tmp___1~1#1); 620#L838-2 assume { :begin_inline_timeShift } true; 658#L576 assume !(0 != ~pumpRunning~0); 596#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 597#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 739#L608-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 516#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 517#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 571#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 589#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 590#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 719#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 718#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 717#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 642#L800-2 [2023-11-12 02:20:14,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:14,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-12 02:20:14,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:14,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550764985] [2023-11-12 02:20:14,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:14,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:14,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:14,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:14,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:14,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2056880265, now seen corresponding path program 1 times [2023-11-12 02:20:14,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:14,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099648130] [2023-11-12 02:20:14,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:14,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:14,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099648130] [2023-11-12 02:20:14,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099648130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:14,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:14,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:20:14,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192668607] [2023-11-12 02:20:14,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:14,834 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:20:14,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:14,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:14,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:14,836 INFO L87 Difference]: Start difference. First operand 308 states and 416 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 02:20:14,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:14,962 INFO L93 Difference]: Finished difference Result 432 states and 563 transitions. [2023-11-12 02:20:14,963 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 432 states and 563 transitions. [2023-11-12 02:20:14,976 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2023-11-12 02:20:14,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 432 states to 432 states and 563 transitions. [2023-11-12 02:20:14,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 432 [2023-11-12 02:20:14,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 432 [2023-11-12 02:20:14,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 432 states and 563 transitions. [2023-11-12 02:20:14,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:14,986 INFO L218 hiAutomatonCegarLoop]: Abstraction has 432 states and 563 transitions. [2023-11-12 02:20:14,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states and 563 transitions. [2023-11-12 02:20:15,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2023-11-12 02:20:15,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 432 states have (on average 1.3032407407407407) internal successors, (563), 431 states have internal predecessors, (563), 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) [2023-11-12 02:20:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 563 transitions. [2023-11-12 02:20:15,028 INFO L240 hiAutomatonCegarLoop]: Abstraction has 432 states and 563 transitions. [2023-11-12 02:20:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:15,033 INFO L428 stractBuchiCegarLoop]: Abstraction has 432 states and 563 transitions. [2023-11-12 02:20:15,033 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-12 02:20:15,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 563 transitions. [2023-11-12 02:20:15,037 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2023-11-12 02:20:15,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:20:15,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:20:15,039 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:15,039 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, 1] [2023-11-12 02:20:15,039 INFO L748 eck$LassoCheckResult]: Stem: 1314#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1315#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1307#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1308#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1426#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1335#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1336#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1400#L800-2 [2023-11-12 02:20:15,040 INFO L750 eck$LassoCheckResult]: Loop: 1400#L800-2 assume !false; 1428#L801 assume test_~splverifierCounter~0#1 < 4; 1565#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1563#L810 assume !(0 != test_~tmp~8#1); 1561#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1559#L820 assume !(0 != test_~tmp___0~3#1); 1557#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1445#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1446#L838 assume !(0 != test_~tmp___1~1#1); 1370#L838-2 assume { :begin_inline_timeShift } true; 1444#L576 assume !(0 != ~pumpRunning~0); 1349#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1350#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1434#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1435#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1548#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1547#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1455#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1456#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 1536#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1537#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1570#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1569#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1568#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1474#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1475#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1478#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1479#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1400#L800-2 [2023-11-12 02:20:15,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:15,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-12 02:20:15,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:15,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615651538] [2023-11-12 02:20:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:15,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:15,070 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:15,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:15,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:15,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1587441165, now seen corresponding path program 1 times [2023-11-12 02:20:15,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:15,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812810243] [2023-11-12 02:20:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:15,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:15,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:15,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:15,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812810243] [2023-11-12 02:20:15,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812810243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:15,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:15,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:15,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307521765] [2023-11-12 02:20:15,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:15,247 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:20:15,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:15,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:20:15,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:15,248 INFO L87 Difference]: Start difference. First operand 432 states and 563 transitions. cyclomatic complexity: 134 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-12 02:20:15,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:15,415 INFO L93 Difference]: Finished difference Result 845 states and 1083 transitions. [2023-11-12 02:20:15,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 845 states and 1083 transitions. [2023-11-12 02:20:15,425 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 606 [2023-11-12 02:20:15,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 845 states to 845 states and 1083 transitions. [2023-11-12 02:20:15,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 845 [2023-11-12 02:20:15,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 845 [2023-11-12 02:20:15,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 845 states and 1083 transitions. [2023-11-12 02:20:15,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:15,445 INFO L218 hiAutomatonCegarLoop]: Abstraction has 845 states and 1083 transitions. [2023-11-12 02:20:15,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states and 1083 transitions. [2023-11-12 02:20:15,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 456. [2023-11-12 02:20:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 456 states have (on average 1.287280701754386) internal successors, (587), 455 states have internal predecessors, (587), 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) [2023-11-12 02:20:15,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 587 transitions. [2023-11-12 02:20:15,476 INFO L240 hiAutomatonCegarLoop]: Abstraction has 456 states and 587 transitions. [2023-11-12 02:20:15,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:20:15,479 INFO L428 stractBuchiCegarLoop]: Abstraction has 456 states and 587 transitions. [2023-11-12 02:20:15,480 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-12 02:20:15,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 456 states and 587 transitions. [2023-11-12 02:20:15,484 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2023-11-12 02:20:15,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:20:15,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:20:15,487 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:15,487 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, 1] [2023-11-12 02:20:15,488 INFO L748 eck$LassoCheckResult]: Stem: 2599#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2600#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 2593#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2594#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 2722#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2621#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 2622#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2690#L800-2 [2023-11-12 02:20:15,488 INFO L750 eck$LassoCheckResult]: Loop: 2690#L800-2 assume !false; 2866#L801 assume test_~splverifierCounter~0#1 < 4; 2654#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 2551#L810 assume !(0 != test_~tmp~8#1); 2553#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2590#L820 assume !(0 != test_~tmp___0~3#1); 2596#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2731#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2659#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2602#L838-2 assume { :begin_inline_timeShift } true; 2851#L576 assume !(0 != ~pumpRunning~0); 2807#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2849#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2729#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2730#L177-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2804#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2805#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 2753#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 2754#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 2845#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2613#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2614#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2888#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 2887#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2886#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 2881#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 2880#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2877#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2690#L800-2 [2023-11-12 02:20:15,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:15,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-12 02:20:15,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:15,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581169994] [2023-11-12 02:20:15,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:15,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:15,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:15,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:15,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:15,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1500178279, now seen corresponding path program 1 times [2023-11-12 02:20:15,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:15,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420158316] [2023-11-12 02:20:15,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:15,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:15,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:15,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:15,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420158316] [2023-11-12 02:20:15,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420158316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:15,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:15,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:20:15,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691892990] [2023-11-12 02:20:15,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:15,656 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:20:15,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:15,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:20:15,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:15,658 INFO L87 Difference]: Start difference. First operand 456 states and 587 transitions. cyclomatic complexity: 134 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2023-11-12 02:20:15,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:15,846 INFO L93 Difference]: Finished difference Result 833 states and 1059 transitions. [2023-11-12 02:20:15,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 833 states and 1059 transitions. [2023-11-12 02:20:15,853 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 598 [2023-11-12 02:20:15,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 833 states to 833 states and 1059 transitions. [2023-11-12 02:20:15,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 833 [2023-11-12 02:20:15,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 833 [2023-11-12 02:20:15,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 833 states and 1059 transitions. [2023-11-12 02:20:15,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:15,864 INFO L218 hiAutomatonCegarLoop]: Abstraction has 833 states and 1059 transitions. [2023-11-12 02:20:15,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states and 1059 transitions. [2023-11-12 02:20:15,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 492. [2023-11-12 02:20:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 492 states have (on average 1.266260162601626) internal successors, (623), 491 states have internal predecessors, (623), 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) [2023-11-12 02:20:15,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 623 transitions. [2023-11-12 02:20:15,880 INFO L240 hiAutomatonCegarLoop]: Abstraction has 492 states and 623 transitions. [2023-11-12 02:20:15,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:20:15,883 INFO L428 stractBuchiCegarLoop]: Abstraction has 492 states and 623 transitions. [2023-11-12 02:20:15,883 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-12 02:20:15,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 492 states and 623 transitions. [2023-11-12 02:20:15,886 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2023-11-12 02:20:15,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:20:15,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:20:15,888 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:15,888 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, 1] [2023-11-12 02:20:15,888 INFO L748 eck$LassoCheckResult]: Stem: 3901#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 3902#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 3893#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3894#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 4034#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3923#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 3924#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3999#L800-2 [2023-11-12 02:20:15,888 INFO L750 eck$LassoCheckResult]: Loop: 3999#L800-2 assume !false; 4201#L801 assume test_~splverifierCounter~0#1 < 4; 4200#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 4198#L810 assume !(0 != test_~tmp~8#1); 4196#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 3895#L820 assume !(0 != test_~tmp___0~3#1); 3897#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 4044#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3960#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 3961#L838-2 assume { :begin_inline_timeShift } true; 4025#L576 assume !(0 != ~pumpRunning~0); 3935#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3936#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 4039#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 4043#L177-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3925#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 3926#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4065#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 4066#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 4106#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4107#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 4212#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4211#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 4210#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 4209#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 4204#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 4203#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4202#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3999#L800-2 [2023-11-12 02:20:15,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:15,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2023-11-12 02:20:15,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:15,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517941755] [2023-11-12 02:20:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:15,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:15,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:15,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:15,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:15,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1758343717, now seen corresponding path program 1 times [2023-11-12 02:20:15,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:15,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170273092] [2023-11-12 02:20:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:15,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:15,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:15,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170273092] [2023-11-12 02:20:15,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170273092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:15,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:15,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:15,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348572086] [2023-11-12 02:20:15,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:15,972 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:20:15,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:15,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:20:15,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:15,973 INFO L87 Difference]: Start difference. First operand 492 states and 623 transitions. cyclomatic complexity: 134 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-12 02:20:16,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:16,075 INFO L93 Difference]: Finished difference Result 821 states and 1035 transitions. [2023-11-12 02:20:16,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 821 states and 1035 transitions. [2023-11-12 02:20:16,082 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 590 [2023-11-12 02:20:16,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 821 states to 821 states and 1035 transitions. [2023-11-12 02:20:16,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 821 [2023-11-12 02:20:16,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 821 [2023-11-12 02:20:16,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 821 states and 1035 transitions. [2023-11-12 02:20:16,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:16,092 INFO L218 hiAutomatonCegarLoop]: Abstraction has 821 states and 1035 transitions. [2023-11-12 02:20:16,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states and 1035 transitions. [2023-11-12 02:20:16,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 492. [2023-11-12 02:20:16,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 492 states have (on average 1.241869918699187) internal successors, (611), 491 states have internal predecessors, (611), 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) [2023-11-12 02:20:16,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 611 transitions. [2023-11-12 02:20:16,108 INFO L240 hiAutomatonCegarLoop]: Abstraction has 492 states and 611 transitions. [2023-11-12 02:20:16,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:20:16,109 INFO L428 stractBuchiCegarLoop]: Abstraction has 492 states and 611 transitions. [2023-11-12 02:20:16,109 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-12 02:20:16,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 492 states and 611 transitions. [2023-11-12 02:20:16,113 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2023-11-12 02:20:16,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:20:16,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:20:16,114 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:16,114 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, 1] [2023-11-12 02:20:16,114 INFO L748 eck$LassoCheckResult]: Stem: 5221#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 5222#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 5213#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5214#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 5343#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 5243#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 5244#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5316#L800-2 [2023-11-12 02:20:16,114 INFO L750 eck$LassoCheckResult]: Loop: 5316#L800-2 assume !false; 5475#L801 assume test_~splverifierCounter~0#1 < 4; 5586#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 5661#L810 assume !(0 != test_~tmp~8#1); 5659#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 5215#L820 assume !(0 != test_~tmp___0~3#1); 5217#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 5355#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 5223#L838 assume !(0 != test_~tmp___1~1#1); 5224#L838-2 assume { :begin_inline_timeShift } true; 5333#L576 assume !(0 != ~pumpRunning~0); 5255#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 5256#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 5351#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 5352#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 5245#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 5246#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 5379#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 5380#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 5420#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5235#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 5236#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5315#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 5655#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 5654#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 5484#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 5480#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5477#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 5316#L800-2 [2023-11-12 02:20:16,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:16,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2023-11-12 02:20:16,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:16,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078609947] [2023-11-12 02:20:16,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:16,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:16,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:16,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1329275727, now seen corresponding path program 1 times [2023-11-12 02:20:16,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:16,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408419587] [2023-11-12 02:20:16,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:16,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:16,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:16,147 INFO L85 PathProgramCache]: Analyzing trace with hash 78293779, now seen corresponding path program 1 times [2023-11-12 02:20:16,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:16,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211932737] [2023-11-12 02:20:16,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:16,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:16,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:16,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211932737] [2023-11-12 02:20:16,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211932737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:16,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:16,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:16,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402262991] [2023-11-12 02:20:16,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:16,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:16,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:20:16,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:16,470 INFO L87 Difference]: Start difference. First operand 492 states and 611 transitions. cyclomatic complexity: 122 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-11-12 02:20:16,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:16,573 INFO L93 Difference]: Finished difference Result 1276 states and 1566 transitions. [2023-11-12 02:20:16,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1276 states and 1566 transitions. [2023-11-12 02:20:16,583 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 956 [2023-11-12 02:20:16,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1276 states to 1276 states and 1566 transitions. [2023-11-12 02:20:16,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1276 [2023-11-12 02:20:16,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1276 [2023-11-12 02:20:16,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1276 states and 1566 transitions. [2023-11-12 02:20:16,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:16,597 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1276 states and 1566 transitions. [2023-11-12 02:20:16,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states and 1566 transitions. [2023-11-12 02:20:16,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 977. [2023-11-12 02:20:16,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 977 states have (on average 1.2272262026612077) internal successors, (1199), 976 states have internal predecessors, (1199), 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) [2023-11-12 02:20:16,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1199 transitions. [2023-11-12 02:20:16,623 INFO L240 hiAutomatonCegarLoop]: Abstraction has 977 states and 1199 transitions. [2023-11-12 02:20:16,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:20:16,625 INFO L428 stractBuchiCegarLoop]: Abstraction has 977 states and 1199 transitions. [2023-11-12 02:20:16,625 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-12 02:20:16,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 977 states and 1199 transitions. [2023-11-12 02:20:16,631 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 694 [2023-11-12 02:20:16,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:20:16,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:20:16,632 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:16,632 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, 1, 1, 1] [2023-11-12 02:20:16,632 INFO L748 eck$LassoCheckResult]: Stem: 7002#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 7003#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 6995#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6996#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 7117#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 7026#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 7027#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 7085#L800-2 [2023-11-12 02:20:16,632 INFO L750 eck$LassoCheckResult]: Loop: 7085#L800-2 assume !false; 7120#L801 assume test_~splverifierCounter~0#1 < 4; 7055#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 7056#L810 assume !(0 != test_~tmp~8#1); 7541#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 7531#L820 assume !(0 != test_~tmp___0~3#1); 7529#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 7527#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 7524#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 7523#L838-2 assume { :begin_inline_timeShift } true; 7522#L576 assume !(0 != ~pumpRunning~0); 7521#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 7505#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 7465#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 7500#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 7498#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 7493#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 7494#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 7603#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 7596#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 7017#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 7007#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 7008#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 7030#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 7031#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 6961#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 6962#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 7506#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 7508#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 7084#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 7085#L800-2 [2023-11-12 02:20:16,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:16,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 7 times [2023-11-12 02:20:16,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:16,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137375487] [2023-11-12 02:20:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:16,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:16,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:16,653 INFO L85 PathProgramCache]: Analyzing trace with hash -823901966, now seen corresponding path program 1 times [2023-11-12 02:20:16,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:16,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326583710] [2023-11-12 02:20:16,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:16,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:16,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash -426711114, now seen corresponding path program 1 times [2023-11-12 02:20:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:16,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574591818] [2023-11-12 02:20:16,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:16,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:16,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:17,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:17,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:20:17 BoogieIcfgContainer [2023-11-12 02:20:17,963 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:20:17,964 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:20:17,964 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:20:17,964 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:20:17,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:13" (3/4) ... [2023-11-12 02:20:17,966 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-12 02:20:18,034 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:20:18,034 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:20:18,035 INFO L158 Benchmark]: Toolchain (without parser) took 5842.31ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 156.4MB in the beginning and 148.2MB in the end (delta: 8.2MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2023-11-12 02:20:18,035 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 97.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:20:18,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.88ms. Allocated memory is still 188.7MB. Free memory was 156.2MB in the beginning and 139.7MB in the end (delta: 16.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-11-12 02:20:18,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.41ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 136.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:20:18,037 INFO L158 Benchmark]: Boogie Preprocessor took 81.49ms. Allocated memory is still 188.7MB. Free memory was 136.9MB in the beginning and 134.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:20:18,037 INFO L158 Benchmark]: RCFGBuilder took 940.91ms. Allocated memory is still 188.7MB. Free memory was 134.5MB in the beginning and 133.0MB in the end (delta: 1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:20:18,037 INFO L158 Benchmark]: BuchiAutomizer took 4075.36ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 133.0MB in the beginning and 151.4MB in the end (delta: -18.4MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2023-11-12 02:20:18,038 INFO L158 Benchmark]: Witness Printer took 70.34ms. Allocated memory is still 226.5MB. Free memory was 151.4MB in the beginning and 148.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:20:18,040 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 97.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.88ms. Allocated memory is still 188.7MB. Free memory was 156.2MB in the beginning and 139.7MB in the end (delta: 16.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.41ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 136.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.49ms. Allocated memory is still 188.7MB. Free memory was 136.9MB in the beginning and 134.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 940.91ms. Allocated memory is still 188.7MB. Free memory was 134.5MB in the beginning and 133.0MB in the end (delta: 1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 4075.36ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 133.0MB in the beginning and 151.4MB in the end (delta: -18.4MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Witness Printer took 70.34ms. Allocated memory is still 226.5MB. Free memory was 151.4MB in the beginning and 148.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 196]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] - GenericResultAtLocation [Line: 788]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] - GenericResultAtLocation [Line: 858]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] - GenericResultAtLocation [Line: 867]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (6 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.6 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 977 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.4s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 0. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 1361 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.1s 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, 1381 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1381 mSDsluCounter, 4635 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2861 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 356 IncrementalHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 1774 mSDtfsCounter, 356 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI5 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: 800]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___2) [L832] CALL startSystem() [L784] systemActive = 1 [L832] RET startSystem() [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 800]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___2) [L832] CALL startSystem() [L784] systemActive = 1 [L832] RET startSystem() [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:20:18,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c912dbe-e161-45e6-a305-bd84b0922e15/bin/uautomizer-verify-uTZkv6EMXl/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)