./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu --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 f89a8ce65f650dd979d04d2db9dc53ba483e2a2b64be3f70ae15b036e4b11b5a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:08,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:08,649 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:46:08,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:08,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:08,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:08,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:08,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:08,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:08,705 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:08,706 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:08,706 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:46:08,707 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:46:08,709 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:46:08,709 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:46:08,710 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:46:08,710 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:46:08,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:08,712 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:46:08,712 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:08,713 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:08,713 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:08,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:08,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:46:08,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:46:08,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:46:08,716 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:08,716 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:08,717 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:08,717 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:46:08,719 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:08,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:08,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:08,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:08,720 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:08,721 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:46:08,721 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_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f89a8ce65f650dd979d04d2db9dc53ba483e2a2b64be3f70ae15b036e4b11b5a [2023-11-19 07:46:09,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:09,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:09,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:09,131 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:09,132 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:09,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c [2023-11-19 07:46:12,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:12,661 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:12,661 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c [2023-11-19 07:46:12,685 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/data/c47010ab6/0f1510a0ffbc40829dcd331b8325f3d6/FLAGd0dcfe8fd [2023-11-19 07:46:12,704 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/data/c47010ab6/0f1510a0ffbc40829dcd331b8325f3d6 [2023-11-19 07:46:12,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:12,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:12,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:12,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:12,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:12,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:12" (1/1) ... [2023-11-19 07:46:12,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b210f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:12, skipping insertion in model container [2023-11-19 07:46:12,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:12" (1/1) ... [2023-11-19 07:46:12,827 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:13,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:13,488 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:13,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-11-19 07:46:13,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [68] [2023-11-19 07:46:13,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [77] [2023-11-19 07:46:13,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [443] [2023-11-19 07:46:13,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2020] [2023-11-19 07:46:13,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2682] [2023-11-19 07:46:13,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2775] [2023-11-19 07:46:13,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2893] [2023-11-19 07:46:13,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2931] [2023-11-19 07:46:13,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [3279] [2023-11-19 07:46:13,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:13,689 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:13,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13 WrapperNode [2023-11-19 07:46:13,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:13,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:13,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:13,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:13,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:13,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:14,589 INFO L138 Inliner]: procedures = 92, calls = 345, calls flagged for inlining = 197, calls inlined = 1765, statements flattened = 63932 [2023-11-19 07:46:14,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:14,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:14,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:14,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:14,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:14,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:14,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:14,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:15,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:15,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:16,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:16,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:16,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:16,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:16,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:16,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:16,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (1/1) ... [2023-11-19 07:46:16,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:16,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:16,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:16,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:16,712 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:16,715 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:42,676 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:42,811 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:42,813 INFO L302 CfgBuilder]: Removed 61 assume(true) statements. [2023-11-19 07:46:42,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:42 BoogieIcfgContainer [2023-11-19 07:46:42,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:42,904 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:46:42,904 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:46:42,908 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:46:42,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:46:42,909 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:46:12" (1/3) ... [2023-11-19 07:46:42,912 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a0c6746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:46:42, skipping insertion in model container [2023-11-19 07:46:42,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:46:42,913 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:13" (2/3) ... [2023-11-19 07:46:42,915 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a0c6746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:46:42, skipping insertion in model container [2023-11-19 07:46:42,915 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:46:42,915 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:42" (3/3) ... [2023-11-19 07:46:42,919 INFO L332 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product22.cil.c [2023-11-19 07:46:43,241 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:46:43,241 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:46:43,241 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:46:43,242 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:46:43,242 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:46:43,242 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:46:43,242 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:46:43,242 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:46:43,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17402 states, 17401 states have (on average 1.8835124418136888) internal successors, (32775), 17401 states have internal predecessors, (32775), 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) [2023-11-19 07:46:43,694 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3966 [2023-11-19 07:46:43,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:46:43,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:46:43,710 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] [2023-11-19 07:46:43,710 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:43,710 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:46:43,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17402 states, 17401 states have (on average 1.8835124418136888) internal successors, (32775), 17401 states have internal predecessors, (32775), 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) [2023-11-19 07:46:44,241 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3966 [2023-11-19 07:46:44,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:46:44,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:46:44,244 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] [2023-11-19 07:46:44,244 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:44,253 INFO L748 eck$LassoCheckResult]: Stem: 4464#$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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~head~0.base, ~head~0.offset := 0, 0;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~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;~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;~cleanupTimeShifts~0 := 12;~prevDir~0 := 0; 4219#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 16048#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 15733#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~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 9233#valid_product_returnLabel#1true main_#t~ret128#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 16069#L3266true assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 10059#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~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 404#L2819true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 2330#getOrigin_returnLabel#1true aliceCall_#t~ret117#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 3877#L2375true assume 0 == initPersonOnFloor_~floor#1; 15891#L2376true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 13627#L2483-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 7134#L2167true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 11150#L2179-2true havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 9544#initPersonOnFloor_returnLabel#1true havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 15671#aliceCall_returnLabel#1true havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 2570#L2819-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 8944#getOrigin_returnLabel#2true angelinaCall_#t~ret118#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 7086#L2375-1true assume 0 == initPersonOnFloor_~floor#1; 10016#L2376-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 12645#L2483-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 16569#L2167-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 4296#L2179-5true havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 3095#initPersonOnFloor_returnLabel#2true havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 7077#angelinaCall_returnLabel#1true havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 6584#getCurrentHeading_returnLabel#1true __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 12012#__utac_acc__Specification13_spec__1_returnLabel#1true havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 13757#areDoorsOpen_returnLabel#1true timeShift_#t~ret79#1 := areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 9427#L1647true assume 0 != timeShift_~tmp~14#1; 13564#L1648true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 16850#L1647-1true assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 12996#L3305true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 10174#L3306true 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~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 2437#L1867true assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~0#1 := 0;existInLiftCallsInDirection_~i~0#1 := 1 + ~currentFloorID~0; 7347#L1871-2true [2023-11-19 07:46:44,254 INFO L750 eck$LassoCheckResult]: Loop: 7347#L1871-2true assume !false; 71#L1872true assume existInLiftCallsInDirection_~i~0#1 < 5; 2744#L1873true assume !(0 == existInLiftCallsInDirection_~i~0#1); 884#$Ultimate##6932true assume !(1 == existInLiftCallsInDirection_~i~0#1); 3361#$Ultimate##6936true assume !(2 == existInLiftCallsInDirection_~i~0#1); 7267#$Ultimate##6940true assume !(3 == existInLiftCallsInDirection_~i~0#1); 6412#$Ultimate##6944true assume !(4 == existInLiftCallsInDirection_~i~0#1); 16549#L1914-1true existInLiftCallsInDirection_~i~0#1 := 1 + existInLiftCallsInDirection_~i~0#1; 7347#L1871-2true [2023-11-19 07:46:44,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:44,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1544398965, now seen corresponding path program 1 times [2023-11-19 07:46:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:44,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368253353] [2023-11-19 07:46:44,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:44,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:44,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:44,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368253353] [2023-11-19 07:46:44,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368253353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:44,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:44,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:46:44,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742904314] [2023-11-19 07:46:44,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:44,845 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:46:44,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:44,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1775462013, now seen corresponding path program 1 times [2023-11-19 07:46:44,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:44,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441773892] [2023-11-19 07:46:44,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:44,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:44,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:46:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:44,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:46:44,960 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:46:44,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:46:44,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:46:44,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:46:44,961 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:46:44,962 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:44,962 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:46:44,962 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:46:44,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product22.cil.c_Iteration1_Loop [2023-11-19 07:46:44,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:46:44,963 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:46:44,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:46:45,067 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:46:45,068 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:46:45,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:45,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:45,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:45,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:46:45,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:46:45,113 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:46:45,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-19 07:46:45,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:45,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:45,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:45,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:46:45,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:46:45,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:46:45,246 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:46:45,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:45,257 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:46:45,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:46:45,258 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:46:45,258 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:46:45,258 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:46:45,258 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:45,258 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:46:45,258 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:46:45,259 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product22.cil.c_Iteration1_Loop [2023-11-19 07:46:45,259 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:46:45,259 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:46:45,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:46:45,343 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:46:45,348 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:46:45,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:45,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:45,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:45,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:46:45,382 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 [2023-11-19 07:46:45,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:46:45,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:46:45,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:46:45,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:46:45,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:46:45,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:46:45,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:46:45,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:46:45,418 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:46:45,419 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:46:45,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:45,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:45,460 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:45,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:46:45,474 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:46:45,474 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:46:45,475 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:46:45,475 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~0#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~0#1 Supporting invariants [] [2023-11-19 07:46:45,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-19 07:46:45,503 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:46:45,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:45,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:46:45,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:45,819 WARN L260 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:46:45,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:46,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:46,122 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 [2023-11-19 07:46:46,153 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17402 states, 17401 states have (on average 1.8835124418136888) internal successors, (32775), 17401 states have internal predecessors, (32775), 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) [2023-11-19 07:46:47,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:49,100 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17402 states, 17401 states have (on average 1.8835124418136888) internal successors, (32775), 17401 states have internal predecessors, (32775), 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 45370 states and 85390 transitions. Complement of second has 18 states. [2023-11-19 07:46:49,102 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 [2023-11-19 07:46:49,107 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) [2023-11-19 07:46:49,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 59103 transitions. [2023-11-19 07:46:49,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 59103 transitions. Stem has 34 letters. Loop has 8 letters. [2023-11-19 07:46:49,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:46:49,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 59103 transitions. Stem has 42 letters. Loop has 8 letters. [2023-11-19 07:46:49,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:46:49,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 59103 transitions. Stem has 34 letters. Loop has 16 letters. [2023-11-19 07:46:49,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:46:49,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45370 states and 85390 transitions. [2023-11-19 07:46:49,806 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 7850 [2023-11-19 07:46:50,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45370 states to 31309 states and 58845 transitions. [2023-11-19 07:46:50,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31279 [2023-11-19 07:46:50,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31280 [2023-11-19 07:46:50,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31309 states and 58845 transitions. [2023-11-19 07:46:50,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:46:50,182 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31309 states and 58845 transitions. [2023-11-19 07:46:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31309 states and 58845 transitions. [2023-11-19 07:46:51,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31309 to 31283. [2023-11-19 07:46:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31283 states, 31283 states have (on average 1.879806923888374) internal successors, (58806), 31282 states have internal predecessors, (58806), 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) [2023-11-19 07:46:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31283 states to 31283 states and 58806 transitions. [2023-11-19 07:46:51,496 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31283 states and 58806 transitions. [2023-11-19 07:46:51,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:51,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:51,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:51,503 INFO L87 Difference]: Start difference. First operand 31283 states and 58806 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) [2023-11-19 07:46:53,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:53,133 INFO L93 Difference]: Finished difference Result 31267 states and 58677 transitions. [2023-11-19 07:46:53,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31267 states and 58677 transitions. [2023-11-19 07:46:53,460 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 7834 [2023-11-19 07:46:53,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31267 states to 31258 states and 58668 transitions. [2023-11-19 07:46:53,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31239 [2023-11-19 07:46:53,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31239 [2023-11-19 07:46:53,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31258 states and 58668 transitions. [2023-11-19 07:46:53,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:46:53,699 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31258 states and 58668 transitions. [2023-11-19 07:46:53,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31258 states and 58668 transitions. [2023-11-19 07:46:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31258 to 17389. [2023-11-19 07:46:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17389 states, 17389 states have (on average 1.8769912013341767) internal successors, (32639), 17388 states have internal predecessors, (32639), 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) [2023-11-19 07:46:54,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17389 states to 17389 states and 32639 transitions. [2023-11-19 07:46:54,439 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17389 states and 32639 transitions. [2023-11-19 07:46:54,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:54,441 INFO L428 stractBuchiCegarLoop]: Abstraction has 17389 states and 32639 transitions. [2023-11-19 07:46:54,441 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:46:54,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17389 states and 32639 transitions. [2023-11-19 07:46:54,524 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2023-11-19 07:46:54,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:46:54,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:46:54,528 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] [2023-11-19 07:46:54,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:54,529 INFO L748 eck$LassoCheckResult]: Stem: 134248#$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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~head~0.base, ~head~0.offset := 0, 0;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~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;~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;~cleanupTimeShifts~0 := 12;~prevDir~0 := 0; 133900#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 133901#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 142732#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~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 139579#valid_product_returnLabel#1 main_#t~ret128#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 139580#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 140250#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~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 126544#L2819 assume !(0 == getOrigin_~person#1); 126545#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 130670#getOrigin_returnLabel#1 aliceCall_#t~ret117#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 130671#L2375 assume 0 == initPersonOnFloor_~floor#1; 133360#L2376 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 125854#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 137598#L2167 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 131437#L2179-2 havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 139858#initPersonOnFloor_returnLabel#1 havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 139859#aliceCall_returnLabel#1 havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 131128#L2819-1 assume !(0 == getOrigin_~person#1); 131129#L2823-1 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 135666#getOrigin_returnLabel#2 angelinaCall_#t~ret118#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 137551#L2375-1 assume 0 == initPersonOnFloor_~floor#1; 137552#L2376-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 125985#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 141784#L2167-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 134004#L2179-5 havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 132090#initPersonOnFloor_returnLabel#2 havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 132091#angelinaCall_returnLabel#1 havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 137010#getCurrentHeading_returnLabel#1 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 137011#__utac_acc__Specification13_spec__1_returnLabel#1 havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 141472#areDoorsOpen_returnLabel#1 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 139759#L1647 assume 0 != timeShift_~tmp~14#1; 139760#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 141825#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 141929#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 140324#L3306 assume !(1 == ~prevDir~0); 138902#L3332 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~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 138903#L1867-2 assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~0#1 := 0;existInLiftCallsInDirection_~i~0#1 := 1 + ~currentFloorID~0; 133694#L1871-8 [2023-11-19 07:46:54,530 INFO L750 eck$LassoCheckResult]: Loop: 133694#L1871-8 assume !false; 133695#L1872-2 assume existInLiftCallsInDirection_~i~0#1 < 5; 126497#L1873-2 assume !(0 == existInLiftCallsInDirection_~i~0#1); 126498#$Ultimate##7088 assume !(1 == existInLiftCallsInDirection_~i~0#1); 133286#$Ultimate##7092 assume !(2 == existInLiftCallsInDirection_~i~0#1); 139386#$Ultimate##7096 assume !(3 == existInLiftCallsInDirection_~i~0#1); 137860#$Ultimate##7100 assume !(4 == existInLiftCallsInDirection_~i~0#1); 137862#L1914-5 existInLiftCallsInDirection_~i~0#1 := 1 + existInLiftCallsInDirection_~i~0#1; 133694#L1871-8 [2023-11-19 07:46:54,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:54,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1440726616, now seen corresponding path program 1 times [2023-11-19 07:46:54,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:54,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332553084] [2023-11-19 07:46:54,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:54,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:54,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:54,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:54,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332553084] [2023-11-19 07:46:54,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332553084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:54,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:54,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:54,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282074847] [2023-11-19 07:46:54,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:54,747 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:46:54,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:54,748 INFO L85 PathProgramCache]: Analyzing trace with hash 582561405, now seen corresponding path program 1 times [2023-11-19 07:46:54,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:54,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316776618] [2023-11-19 07:46:54,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:54,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:54,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:46:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:54,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:46:54,812 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:46:54,812 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:46:54,813 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:46:54,813 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:46:54,813 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:46:54,813 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:54,813 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:46:54,813 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:46:54,814 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product22.cil.c_Iteration2_Loop [2023-11-19 07:46:54,814 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:46:54,814 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:46:54,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:46:54,873 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:46:54,874 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:46:54,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:54,875 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:54,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:46:54,878 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:46:54,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:46:54,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:54,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:54,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:54,925 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:54,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:46:54,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:46:54,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:46:54,987 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:46:54,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:54,996 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:46:54,996 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:46:54,996 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:46:54,996 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:46:54,996 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:46:54,996 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:54,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:46:54,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:46:54,997 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product22.cil.c_Iteration2_Loop [2023-11-19 07:46:54,997 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:46:54,997 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:46:54,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:46:55,051 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:46:55,052 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:46:55,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:55,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:55,053 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:55,062 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 [2023-11-19 07:46:55,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:46:55,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:46:55,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:46:55,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:46:55,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:46:55,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:46:55,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:46:55,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:46:55,090 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:46:55,093 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:46:55,093 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:46:55,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:55,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:55,095 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:55,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:46:55,102 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:46:55,102 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:46:55,102 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~0#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~0#1 Supporting invariants [] [2023-11-19 07:46:55,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:46:55,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:55,125 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:46:55,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:55,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:46:55,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:55,314 WARN L260 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:46:55,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:55,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:55,501 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 [2023-11-19 07:46:55,501 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17389 states and 32639 transitions. cyclomatic complexity: 15284 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) [2023-11-19 07:46:56,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b035895c-180d-4532-96d2-d8d42d556a8c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0