./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec13_product30.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_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/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_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/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_f5c17e7b-cbd4-4483-9884-f564e0464cad/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 d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:27:37,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:27:37,523 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-12 02:27:37,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:27:37,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:27:37,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:27:37,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:27:37,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:27:37,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:27:37,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:27:37,580 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:27:37,580 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:27:37,581 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:27:37,582 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:27:37,583 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:27:37,583 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:27:37,584 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:27:37,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:27:37,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:27:37,585 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:27:37,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:27:37,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:27:37,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:27:37,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:27:37,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:27:37,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:27:37,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:27:37,590 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:27:37,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:27:37,591 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:27:37,592 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:27:37,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:27:37,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:27:37,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:27:37,593 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:27:37,594 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:27:37,594 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_f5c17e7b-cbd4-4483-9884-f564e0464cad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f [2023-11-12 02:27:37,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:27:37,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:27:37,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:27:37,880 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:27:37,881 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:27:37,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2023-11-12 02:27:41,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:27:41,512 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:27:41,520 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2023-11-12 02:27:41,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/data/4f3d24cfd/05caed365fe74e67bb75ffc4d330d979/FLAG1b889e2fb [2023-11-12 02:27:41,574 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/data/4f3d24cfd/05caed365fe74e67bb75ffc4d330d979 [2023-11-12 02:27:41,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:27:41,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:27:41,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:41,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:27:41,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:27:41,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:41" (1/1) ... [2023-11-12 02:27:41,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0e9283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:41, skipping insertion in model container [2023-11-12 02:27:41,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:41" (1/1) ... [2023-11-12 02:27:41,689 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:27:42,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:42,342 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:27:42,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2023-11-12 02:27:42,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [169] [2023-11-12 02:27:42,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [837] [2023-11-12 02:27:42,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [932] [2023-11-12 02:27:42,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1290] [2023-11-12 02:27:42,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1382] [2023-11-12 02:27:42,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2960] [2023-11-12 02:27:42,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2995] [2023-11-12 02:27:42,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3004] [2023-11-12 02:27:42,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3019] [2023-11-12 02:27:42,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:42,484 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:27:42,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42 WrapperNode [2023-11-12 02:27:42,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:42,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:42,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:27:42,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:27:42,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:42,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:43,326 INFO L138 Inliner]: procedures = 93, calls = 347, calls flagged for inlining = 199, calls inlined = 1885, statements flattened = 66512 [2023-11-12 02:27:43,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:43,327 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:27:43,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:27:43,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:27:43,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:43,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:43,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:43,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:44,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:44,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:44,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:44,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:44,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:27:44,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:27:44,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:27:44,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:27:44,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (1/1) ... [2023-11-12 02:27:44,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:27:44,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:44,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:27:44,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:27:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:27:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:27:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:27:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:27:45,270 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:27:45,272 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:28:10,239 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:28:10,332 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:28:10,333 INFO L302 CfgBuilder]: Removed 61 assume(true) statements. [2023-11-12 02:28:10,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:10 BoogieIcfgContainer [2023-11-12 02:28:10,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:28:10,352 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:28:10,352 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:28:10,356 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:28:10,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:28:10,357 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:27:41" (1/3) ... [2023-11-12 02:28:10,358 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a7fc20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:28:10, skipping insertion in model container [2023-11-12 02:28:10,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:28:10,358 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:42" (2/3) ... [2023-11-12 02:28:10,358 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a7fc20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:28:10, skipping insertion in model container [2023-11-12 02:28:10,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:28:10,359 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:10" (3/3) ... [2023-11-12 02:28:10,360 INFO L332 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product30.cil.c [2023-11-12 02:28:10,653 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:28:10,653 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:28:10,654 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:28:10,654 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:28:10,655 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:28:10,655 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:28:10,655 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:28:10,655 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:28:10,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17942 states, 17941 states have (on average 1.8803299704587257) internal successors, (33735), 17941 states have internal predecessors, (33735), 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 02:28:11,052 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4074 [2023-11-12 02:28:11,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:28:11,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:28:11,062 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:11,063 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:11,063 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:28:11,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17942 states, 17941 states have (on average 1.8803299704587257) internal successors, (33735), 17941 states have internal predecessors, (33735), 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 02:28:11,296 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4074 [2023-11-12 02:28:11,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:28:11,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:28:11,298 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:11,299 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:11,306 INFO L748 eck$LassoCheckResult]: Stem: 4669#$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(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 37);~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~prevDir~0 := 0;~cleanupTimeShifts~0 := 12;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 4386#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 16602#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 16276#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~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 9632#valid_product_returnLabel#1true main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 9011#L1277true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 10459#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 2461#L95true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 2418#getOrigin_returnLabel#1true aliceCall_#t~ret13#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 17148#L530true assume 0 == initPersonOnFloor_~floor#1; 11856#L531true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 14404#L638-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 13174#L322true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 12614#L334-2true havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 9898#initPersonOnFloor_returnLabel#1true havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 16222#aliceCall_returnLabel#1true havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 89#L95-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 9403#getOrigin_returnLabel#2true angelinaCall_#t~ret14#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 7044#L530-1true assume 0 == initPersonOnFloor_~floor#1; 13078#L531-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 10115#L638-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 2952#L322-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 4390#L334-5true havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 3106#initPersonOnFloor_returnLabel#2true havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 7396#angelinaCall_returnLabel#1true havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 6809#getCurrentHeading_returnLabel#1true __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 12525#__utac_acc__Specification13_spec__1_returnLabel#1true havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 14232#areDoorsOpen_returnLabel#1true timeShift_#t~ret84#1 := areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 2458#L2587true assume 0 != timeShift_~tmp~24#1; 5500#L2588true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 17499#L2587-1true assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 5134#L869true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 3712#L870true assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 12393#L2807true assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~3#1 := 0;existInLiftCallsInDirection_~i~3#1 := 1 + ~currentFloorID~0; 6368#L2811-2true [2023-11-12 02:28:11,307 INFO L750 eck$LassoCheckResult]: Loop: 6368#L2811-2true assume !false; 4977#L2812true assume existInLiftCallsInDirection_~i~3#1 < 5; 523#L2813true assume !(0 == existInLiftCallsInDirection_~i~3#1); 15400#$Ultimate##7112true assume !(1 == existInLiftCallsInDirection_~i~3#1); 15878#$Ultimate##7116true assume !(2 == existInLiftCallsInDirection_~i~3#1); 6474#$Ultimate##7120true assume !(3 == existInLiftCallsInDirection_~i~3#1); 2234#$Ultimate##7124true assume !(4 == existInLiftCallsInDirection_~i~3#1); 1017#L2854-1true existInLiftCallsInDirection_~i~3#1 := 1 + existInLiftCallsInDirection_~i~3#1; 6368#L2811-2true [2023-11-12 02:28:11,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:11,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1529622645, now seen corresponding path program 1 times [2023-11-12 02:28:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:11,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900937629] [2023-11-12 02:28:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:11,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:11,792 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 02:28:11,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:11,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900937629] [2023-11-12 02:28:11,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900937629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:11,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:11,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:28:11,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957777771] [2023-11-12 02:28:11,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:11,801 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-12 02:28:11,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:11,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1374005635, now seen corresponding path program 1 times [2023-11-12 02:28:11,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:11,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305671108] [2023-11-12 02:28:11,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:11,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:11,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:11,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:28:11,931 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:28:11,931 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:28:11,931 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:28:11,932 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:28:11,932 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:28:11,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:11,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:28:11,932 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:28:11,932 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration1_Loop [2023-11-12 02:28:11,932 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:28:11,933 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:28:11,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:12,049 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:28:12,049 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:28:12,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:12,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:12,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:12,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-12 02:28:12,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:28:12,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:28:12,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:12,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:12,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:12,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:12,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:28:12,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:28:12,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-12 02:28:12,326 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:28:12,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-12 02:28:12,334 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:28:12,334 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:28:12,334 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:28:12,334 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:28:12,334 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:28:12,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:12,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:28:12,335 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:28:12,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration1_Loop [2023-11-12 02:28:12,335 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:28:12,335 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:28:12,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:12,414 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:28:12,419 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:28:12,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:12,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:12,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:12,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-12 02:28:12,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:12,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:28:12,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:12,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:12,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:12,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:28:12,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:28:12,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-12 02:28:12,464 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:28:12,471 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:28:12,471 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:28:12,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:12,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:12,503 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:12,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-12 02:28:12,505 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:28:12,505 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:28:12,506 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:28:12,507 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~3#1 Supporting invariants [] [2023-11-12 02:28:12,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-12 02:28:12,514 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:28:12,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:12,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:28:12,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:12,795 WARN L260 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 02:28:12,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:13,026 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 02:28:13,073 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2023-11-12 02:28:13,113 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17942 states, 17941 states have (on average 1.8803299704587257) internal successors, (33735), 17941 states have internal predecessors, (33735), 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 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 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 02:28:15,661 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17942 states, 17941 states have (on average 1.8803299704587257) internal successors, (33735), 17941 states have internal predecessors, (33735), 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 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 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) Result 46774 states and 87886 transitions. Complement of second has 18 states. [2023-11-12 02:28:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-12 02:28:15,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 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 02:28:15,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 60831 transitions. [2023-11-12 02:28:15,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 60831 transitions. Stem has 34 letters. Loop has 8 letters. [2023-11-12 02:28:15,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:28:15,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 60831 transitions. Stem has 42 letters. Loop has 8 letters. [2023-11-12 02:28:15,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:28:15,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 60831 transitions. Stem has 34 letters. Loop has 16 letters. [2023-11-12 02:28:15,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:28:15,748 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46774 states and 87886 transitions. [2023-11-12 02:28:16,307 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 8066 [2023-11-12 02:28:16,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46774 states to 32281 states and 60573 transitions. [2023-11-12 02:28:16,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32251 [2023-11-12 02:28:16,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32252 [2023-11-12 02:28:16,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32281 states and 60573 transitions. [2023-11-12 02:28:16,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:28:16,644 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32281 states and 60573 transitions. [2023-11-12 02:28:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32281 states and 60573 transitions. [2023-11-12 02:28:17,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32281 to 32255. [2023-11-12 02:28:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32255 states, 32255 states have (on average 1.876732289567509) internal successors, (60534), 32254 states have internal predecessors, (60534), 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 02:28:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32255 states to 32255 states and 60534 transitions. [2023-11-12 02:28:17,527 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32255 states and 60534 transitions. [2023-11-12 02:28:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:17,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:28:17,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:28:17,533 INFO L87 Difference]: Start difference. First operand 32255 states and 60534 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:28:18,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:19,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:19,225 INFO L93 Difference]: Finished difference Result 32239 states and 60405 transitions. [2023-11-12 02:28:19,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32239 states and 60405 transitions. [2023-11-12 02:28:19,406 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 8050 [2023-11-12 02:28:19,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32239 states to 32230 states and 60396 transitions. [2023-11-12 02:28:19,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32211 [2023-11-12 02:28:19,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32211 [2023-11-12 02:28:19,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32230 states and 60396 transitions. [2023-11-12 02:28:19,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:28:19,614 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32230 states and 60396 transitions. [2023-11-12 02:28:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32230 states and 60396 transitions. [2023-11-12 02:28:19,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32230 to 17929. [2023-11-12 02:28:19,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17929 states, 17929 states have (on average 1.874003011880194) internal successors, (33599), 17928 states have internal predecessors, (33599), 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 02:28:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17929 states to 17929 states and 33599 transitions. [2023-11-12 02:28:20,036 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17929 states and 33599 transitions. [2023-11-12 02:28:20,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:28:20,038 INFO L428 stractBuchiCegarLoop]: Abstraction has 17929 states and 33599 transitions. [2023-11-12 02:28:20,038 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:28:20,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17929 states and 33599 transitions. [2023-11-12 02:28:20,109 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2023-11-12 02:28:20,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:28:20,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:28:20,112 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:20,113 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:20,113 INFO L748 eck$LassoCheckResult]: Stem: 138470#$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(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 37);~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~prevDir~0 := 0;~cleanupTimeShifts~0 := 12;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 138056#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 138057#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 147172#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~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 144069#valid_product_returnLabel#1 main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 143554#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 143555#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 134869#L95 assume !(0 == getOrigin_~person#1); 131170#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 131171#getOrigin_returnLabel#1 aliceCall_#t~ret13#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 134786#L530 assume 0 == initPersonOnFloor_~floor#1; 145626#L531 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 129538#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 146275#L322 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 129791#L334-2 havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 144278#initPersonOnFloor_returnLabel#1 havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 144279#aliceCall_returnLabel#1 havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 129627#L95-1 assume !(0 == getOrigin_~person#1); 129628#L99-1 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 130386#getOrigin_returnLabel#2 angelinaCall_#t~ret14#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 141604#L530-1 assume 0 == initPersonOnFloor_~floor#1; 141605#L531-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 129914#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 135738#L322-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 130457#L334-5 havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 135987#initPersonOnFloor_returnLabel#2 havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 135988#angelinaCall_returnLabel#1 havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 141340#getCurrentHeading_returnLabel#1 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 141341#__utac_acc__Specification13_spec__1_returnLabel#1 havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 145968#areDoorsOpen_returnLabel#1 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 134862#L2587 assume 0 != timeShift_~tmp~24#1; 134863#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 136473#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 139158#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 137007#L870 assume !(1 == ~prevDir~0); 137008#L896 assume 0 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 1;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 146676#L2807-2 assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~3#1 := 0;existInLiftCallsInDirection_~i~3#1 := 1 + ~currentFloorID~0; 141303#L2811-8 [2023-11-12 02:28:20,114 INFO L750 eck$LassoCheckResult]: Loop: 141303#L2811-8 assume !false; 141304#L2812-2 assume existInLiftCallsInDirection_~i~3#1 < 5; 141889#L2813-2 assume !(0 == existInLiftCallsInDirection_~i~3#1); 137275#$Ultimate##7268 assume !(1 == existInLiftCallsInDirection_~i~3#1); 137277#$Ultimate##7272 assume !(2 == existInLiftCallsInDirection_~i~3#1); 140198#$Ultimate##7276 assume !(3 == existInLiftCallsInDirection_~i~3#1); 140199#$Ultimate##7280 assume !(4 == existInLiftCallsInDirection_~i~3#1); 146232#L2854-5 existInLiftCallsInDirection_~i~3#1 := 1 + existInLiftCallsInDirection_~i~3#1; 141303#L2811-8 [2023-11-12 02:28:20,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:20,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1898793016, now seen corresponding path program 1 times [2023-11-12 02:28:20,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:20,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108227094] [2023-11-12 02:28:20,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:20,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,340 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 02:28:20,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:20,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108227094] [2023-11-12 02:28:20,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108227094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:20,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:20,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:28:20,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636732306] [2023-11-12 02:28:20,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:20,342 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-12 02:28:20,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:20,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1728061053, now seen corresponding path program 1 times [2023-11-12 02:28:20,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:20,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31279552] [2023-11-12 02:28:20,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:20,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:20,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:20,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:28:20,407 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:28:20,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:28:20,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:28:20,408 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:28:20,408 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:28:20,408 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:20,408 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:28:20,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:28:20,408 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration2_Loop [2023-11-12 02:28:20,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:28:20,408 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:28:20,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:20,472 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:28:20,472 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:28:20,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:20,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:20,474 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:20,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:28:20,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:28:20,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-12 02:28:20,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:20,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:20,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:20,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:20,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:28:20,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:28:20,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-12 02:28:20,565 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:28:20,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:20,569 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:28:20,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:28:20,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:28:20,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:28:20,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:28:20,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:20,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:28:20,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:28:20,570 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration2_Loop [2023-11-12 02:28:20,570 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:28:20,570 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:28:20,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:20,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:28:20,634 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:28:20,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:20,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:20,640 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:20,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-12 02:28:20,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:20,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:28:20,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:20,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:20,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:20,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:28:20,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:28:20,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-12 02:28:20,680 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:28:20,685 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:28:20,685 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:28:20,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:20,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:20,687 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:20,695 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:28:20,695 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:28:20,696 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:28:20,696 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~3#1 Supporting invariants [] [2023-11-12 02:28:20,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-12 02:28:20,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:20,705 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:28:20,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:28:20,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,903 WARN L260 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 02:28:20,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:21,103 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 02:28:21,104 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2023-11-12 02:28:21,104 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17929 states and 33599 transitions. cyclomatic complexity: 15704 Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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 02:28:22,439 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17929 states and 33599 transitions. cyclomatic complexity: 15704. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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) Result 32286 states and 60479 transitions. Complement of second has 17 states. [2023-11-12 02:28:22,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-12 02:28:22,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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 02:28:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 33588 transitions. [2023-11-12 02:28:22,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 33588 transitions. Stem has 37 letters. Loop has 8 letters. [2023-11-12 02:28:22,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:28:22,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 33588 transitions. Stem has 45 letters. Loop has 8 letters. [2023-11-12 02:28:22,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:28:22,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 33588 transitions. Stem has 37 letters. Loop has 16 letters. [2023-11-12 02:28:22,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:28:22,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32286 states and 60479 transitions. [2023-11-12 02:28:22,672 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 8064 [2023-11-12 02:28:22,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32286 states to 32278 states and 60471 transitions. [2023-11-12 02:28:22,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32229 [2023-11-12 02:28:22,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32230 [2023-11-12 02:28:22,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32278 states and 60471 transitions. [2023-11-12 02:28:22,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:28:22,858 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32278 states and 60471 transitions. [2023-11-12 02:28:22,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32278 states and 60471 transitions. [2023-11-12 02:28:23,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32278 to 17953. [2023-11-12 02:28:23,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17953 states, 17953 states have (on average 1.8736144376984347) internal successors, (33637), 17952 states have internal predecessors, (33637), 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 02:28:23,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c17e7b-cbd4-4483-9884-f564e0464cad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17953 states to 17953 states and 33637 transitions. [2023-11-12 02:28:23,772 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17953 states and 33637 transitions. [2023-11-12 02:28:23,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:23,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:28:23,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:28:23,773 INFO L87 Difference]: Start difference. First operand 17953 states and 33637 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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)