./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/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_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/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_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/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 89950477a2818e2be847e3014c0e2f9e906834037b4e328723302699ed4d9564 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:45:47,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:48,018 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:45:48,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:48,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:48,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:48,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:48,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:48,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:48,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:48,083 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:48,084 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:45:48,084 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:45:48,086 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:45:48,087 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:45:48,087 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:45:48,088 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:45:48,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:48,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:45:48,090 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:45:48,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:48,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:45:48,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:48,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:45:48,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:45:48,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:45:48,095 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:45:48,096 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:45:48,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:45:48,097 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:45:48,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:48,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:48,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:48,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:48,099 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:45:48,100 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:45:48,100 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_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89950477a2818e2be847e3014c0e2f9e906834037b4e328723302699ed4d9564 [2023-11-19 07:45:48,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:48,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:48,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:48,551 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:48,552 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:48,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2023-11-19 07:45:51,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:45:52,286 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:45:52,287 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2023-11-19 07:45:52,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/data/608a9ecee/43d6c232ae0e443b934d26c2c1b40415/FLAG37287e511 [2023-11-19 07:45:52,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/data/608a9ecee/43d6c232ae0e443b934d26c2c1b40415 [2023-11-19 07:45:52,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:45:52,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:45:52,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:52,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:45:52,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:45:52,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:52" (1/1) ... [2023-11-19 07:45:52,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc41f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:52, skipping insertion in model container [2023-11-19 07:45:52,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:52" (1/1) ... [2023-11-19 07:45:52,535 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:53,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:53,216 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:45:53,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-11-19 07:45:53,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [414] [2023-11-19 07:45:53,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [434] [2023-11-19 07:45:53,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2095] [2023-11-19 07:45:53,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2449] [2023-11-19 07:45:53,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2458] [2023-11-19 07:45:53,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2549] [2023-11-19 07:45:53,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [3210] [2023-11-19 07:45:53,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3299] [2023-11-19 07:45:53,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3417] [2023-11-19 07:45:53,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:53,468 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:45:53,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53 WrapperNode [2023-11-19 07:45:53,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:53,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:53,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:45:53,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:45:53,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:53,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:54,660 INFO L138 Inliner]: procedures = 96, calls = 353, calls flagged for inlining = 205, calls inlined = 1945, statements flattened = 67293 [2023-11-19 07:45:54,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:54,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:45:54,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:45:54,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:45:54,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:54,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:54,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:54,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:55,405 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:55,935 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:55,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:56,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:56,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:45:56,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:45:56,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:45:56,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:45:56,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (1/1) ... [2023-11-19 07:45:56,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:45:56,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:45:56,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:45:56,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:45:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:45:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:45:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:45:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:45:56,581 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:45:56,584 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:22,532 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:22,638 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:22,638 INFO L302 CfgBuilder]: Removed 61 assume(true) statements. [2023-11-19 07:46:22,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:22 BoogieIcfgContainer [2023-11-19 07:46:22,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:22,701 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:46:22,701 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:46:22,705 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:46:22,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:46:22,706 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:45:52" (1/3) ... [2023-11-19 07:46:22,707 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d1e2cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:46:22, skipping insertion in model container [2023-11-19 07:46:22,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:46:22,707 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:53" (2/3) ... [2023-11-19 07:46:22,708 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d1e2cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:46:22, skipping insertion in model container [2023-11-19 07:46:22,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:46:22,708 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:22" (3/3) ... [2023-11-19 07:46:22,709 INFO L332 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product24.cil.c [2023-11-19 07:46:23,009 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:46:23,009 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:46:23,009 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:46:23,009 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:46:23,009 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:46:23,010 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:46:23,010 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:46:23,010 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:46:23,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17952 states, 17951 states have (on average 1.8770542031084618) internal successors, (33695), 17951 states have internal predecessors, (33695), 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 07:46:23,425 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4076 [2023-11-19 07:46:23,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:46:23,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:46:23,437 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 07:46:23,437 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:23,437 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:46:23,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17952 states, 17951 states have (on average 1.8770542031084618) internal successors, (33695), 17951 states have internal predecessors, (33695), 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 07:46:23,715 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4076 [2023-11-19 07:46:23,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:46:23,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:46:23,719 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 07:46:23,719 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:23,733 INFO L748 eck$LassoCheckResult]: Stem: 4595#$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;~executiveFloor~0 := 4;~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;~cleanupTimeShifts~0 := 12;~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;~prevDir~0 := 0; 4332#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret129#1, main_~retValue_acc~23#1, main_~tmp~27#1;havoc main_~retValue_acc~23#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 16533#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 16183#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~31#1;havoc valid_product_~retValue_acc~31#1;valid_product_~retValue_acc~31#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~31#1; 9548#valid_product_returnLabel#1true main_#t~ret129#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~31#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret129#1;havoc main_#t~ret129#1; 17091#L2436true assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 10378#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~ret118#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~28#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~28#1; 10939#L3343true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~28#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~28#1; 2383#getOrigin_returnLabel#1true aliceCall_#t~ret118#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~28#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret118#1;havoc aliceCall_#t~ret118#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; 10938#L2903true assume 0 == initPersonOnFloor_~floor#1; 5076#L2904true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 12188#L3011-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 4422#L2695true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 8135#L2707-2true havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 9847#initPersonOnFloor_returnLabel#1true havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 16121#aliceCall_returnLabel#1true havoc aliceCall_#t~ret118#1, aliceCall_~tmp~20#1;assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret119#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~28#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~28#1; 17518#L3343-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~28#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~28#1; 9265#getOrigin_returnLabel#2true angelinaCall_#t~ret119#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~28#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret119#1;havoc angelinaCall_#t~ret119#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; 4650#L2903-1true assume 0 == initPersonOnFloor_~floor#1; 1145#L2904-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 2951#L3011-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 11549#L2695-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 17877#L2707-5true havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 3127#initPersonOnFloor_returnLabel#2true havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 7388#angelinaCall_returnLabel#1true havoc angelinaCall_#t~ret119#1, angelinaCall_~tmp~21#1;assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret86#1, timeShift_~tmp~16#1;havoc timeShift_~tmp~16#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret136#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; 6825#getCurrentHeading_returnLabel#1true __utac_acc__Specification13_spec__1_#t~ret136#1 := getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret136#1;havoc __utac_acc__Specification13_spec__1_#t~ret136#1; 12422#__utac_acc__Specification13_spec__1_returnLabel#1true havoc __utac_acc__Specification13_spec__1_#t~ret136#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; 14147#areDoorsOpen_returnLabel#1true timeShift_#t~ret86#1 := areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~16#1 := timeShift_#t~ret86#1;havoc timeShift_#t~ret86#1; 17002#L1702true assume 0 != timeShift_~tmp~16#1; 8562#L1703true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 3738#L1702-1true assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret137#1, __utac_acc__Specification13_spec__2_#t~ret138#1, __utac_acc__Specification13_spec__2_#t~ret139#1, __utac_acc__Specification13_spec__2_#t~ret140#1, __utac_acc__Specification13_spec__2_#t~ret141#1, __utac_acc__Specification13_spec__2_#t~ret142#1, __utac_acc__Specification13_spec__2_~tmp~30#1, __utac_acc__Specification13_spec__2_~tmp___0~13#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_tmp7~7#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~8#1;havoc __utac_acc__Specification13_spec__2_~tmp~30#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~13#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_tmp7~7#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~8#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~8#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 / 3); 1562#L3236true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~8#1; 7801#L3237true 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~19#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~19#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 17337#L1922true assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~0#1 := 0;existInLiftCallsInDirection_~i~0#1 := 1 + ~currentFloorID~0; 13701#L1926-2true [2023-11-19 07:46:23,734 INFO L750 eck$LassoCheckResult]: Loop: 13701#L1926-2true assume !false; 17211#L1927true assume existInLiftCallsInDirection_~i~0#1 < 5; 17543#L1928true assume !(0 == existInLiftCallsInDirection_~i~0#1); 14213#$Ultimate##7080true assume !(1 == existInLiftCallsInDirection_~i~0#1); 10820#$Ultimate##7084true assume !(2 == existInLiftCallsInDirection_~i~0#1); 3881#$Ultimate##7088true assume !(3 == existInLiftCallsInDirection_~i~0#1); 10072#$Ultimate##7092true assume !(4 == existInLiftCallsInDirection_~i~0#1); 13134#L1969-1true existInLiftCallsInDirection_~i~0#1 := 1 + existInLiftCallsInDirection_~i~0#1; 13701#L1926-2true [2023-11-19 07:46:23,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:23,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1530792437, now seen corresponding path program 1 times [2023-11-19 07:46:23,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:23,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936508343] [2023-11-19 07:46:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:23,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:24,260 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 07:46:24,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:24,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936508343] [2023-11-19 07:46:24,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936508343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:24,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:24,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:46:24,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877942887] [2023-11-19 07:46:24,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:24,268 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:46:24,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:24,269 INFO L85 PathProgramCache]: Analyzing trace with hash 629105533, now seen corresponding path program 1 times [2023-11-19 07:46:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:24,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143400298] [2023-11-19 07:46:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:24,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:24,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:46:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:24,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:46:24,534 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:46:24,535 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:46:24,535 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:46:24,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:46:24,536 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:46:24,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:24,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:46:24,536 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:46:24,536 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product24.cil.c_Iteration1_Loop [2023-11-19 07:46:24,537 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:46:24,537 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:46:24,562 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 07:46:24,672 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:46:24,673 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:46:24,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:24,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:24,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:24,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:46:24,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:46:24,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:46:24,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:24,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:24,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:24,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:24,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:46:24,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:46:24,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:46:24,784 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:46:24,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:24,794 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:46:24,794 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:46:24,794 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:46:24,794 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:46:24,794 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:46:24,794 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:24,794 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:46:24,794 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:46:24,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product24.cil.c_Iteration1_Loop [2023-11-19 07:46:24,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:46:24,795 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:46:24,796 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 07:46:24,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:46:24,877 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:46:24,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:24,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:24,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:24,883 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 07:46:24,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:46:24,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:46:24,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:46:24,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:46:24,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:46:24,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:46:24,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:46:24,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:46:24,906 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:46:24,911 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:46:24,911 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:46:24,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:24,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:24,946 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:24,958 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:46:24,958 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:46:24,959 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:46:24,959 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 07:46:24,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:46:24,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:24,986 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:46:25,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:25,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:46:25,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:25,264 WARN L260 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:46:25,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:25,446 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 07:46:25,481 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 07:46:25,507 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17952 states, 17951 states have (on average 1.8770542031084618) internal successors, (33695), 17951 states have internal predecessors, (33695), 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 07:46:27,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:28,282 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17952 states, 17951 states have (on average 1.8770542031084618) internal successors, (33695), 17951 states have internal predecessors, (33695), 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 46800 states and 87782 transitions. Complement of second has 18 states. [2023-11-19 07:46:28,284 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 07:46:28,290 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 07:46:28,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 60759 transitions. [2023-11-19 07:46:28,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 60759 transitions. Stem has 34 letters. Loop has 8 letters. [2023-11-19 07:46:28,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:46:28,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 60759 transitions. Stem has 42 letters. Loop has 8 letters. [2023-11-19 07:46:28,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:46:28,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 60759 transitions. Stem has 34 letters. Loop has 16 letters. [2023-11-19 07:46:28,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:46:28,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46800 states and 87782 transitions. [2023-11-19 07:46:29,069 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 8070 [2023-11-19 07:46:29,361 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46800 states to 32299 states and 60501 transitions. [2023-11-19 07:46:29,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32269 [2023-11-19 07:46:29,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32270 [2023-11-19 07:46:29,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32299 states and 60501 transitions. [2023-11-19 07:46:29,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:46:29,416 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32299 states and 60501 transitions. [2023-11-19 07:46:29,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32299 states and 60501 transitions. [2023-11-19 07:46:30,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32299 to 32273. [2023-11-19 07:46:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32273 states, 32273 states have (on average 1.8734545905245872) internal successors, (60462), 32272 states have internal predecessors, (60462), 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 07:46:30,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32273 states to 32273 states and 60462 transitions. [2023-11-19 07:46:30,464 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32273 states and 60462 transitions. [2023-11-19 07:46:30,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:30,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:30,470 INFO L87 Difference]: Start difference. First operand 32273 states and 60462 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 07:46:32,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:32,042 INFO L93 Difference]: Finished difference Result 32257 states and 60333 transitions. [2023-11-19 07:46:32,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32257 states and 60333 transitions. [2023-11-19 07:46:32,287 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 8054 [2023-11-19 07:46:32,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32257 states to 32248 states and 60324 transitions. [2023-11-19 07:46:32,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32229 [2023-11-19 07:46:32,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32229 [2023-11-19 07:46:32,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32248 states and 60324 transitions. [2023-11-19 07:46:32,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:46:32,822 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32248 states and 60324 transitions. [2023-11-19 07:46:32,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32248 states and 60324 transitions. [2023-11-19 07:46:33,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32248 to 17939. [2023-11-19 07:46:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17939 states, 17939 states have (on average 1.8707285801884164) internal successors, (33559), 17938 states have internal predecessors, (33559), 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 07:46:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17939 states to 17939 states and 33559 transitions. [2023-11-19 07:46:33,291 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17939 states and 33559 transitions. [2023-11-19 07:46:33,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:33,292 INFO L428 stractBuchiCegarLoop]: Abstraction has 17939 states and 33559 transitions. [2023-11-19 07:46:33,292 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:46:33,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17939 states and 33559 transitions. [2023-11-19 07:46:33,361 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4074 [2023-11-19 07:46:33,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:46:33,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:46:33,364 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 07:46:33,365 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:33,366 INFO L748 eck$LassoCheckResult]: Stem: 138381#$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;~executiveFloor~0 := 4;~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;~cleanupTimeShifts~0 := 12;~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;~prevDir~0 := 0; 138017#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret129#1, main_~retValue_acc~23#1, main_~tmp~27#1;havoc main_~retValue_acc~23#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 138018#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 147247#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~31#1;havoc valid_product_~retValue_acc~31#1;valid_product_~retValue_acc~31#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~31#1; 144068#valid_product_returnLabel#1 main_#t~ret129#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~31#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret129#1;havoc main_#t~ret129#1; 144069#L2436 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 144675#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~ret118#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~28#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~28#1; 144676#L3343 assume !(0 == getOrigin_~person#1); 145038#L3347 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~28#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~28#1; 134597#getOrigin_returnLabel#1 aliceCall_#t~ret118#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~28#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret118#1;havoc aliceCall_#t~ret118#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; 134719#L2903 assume 0 == initPersonOnFloor_~floor#1; 139071#L2904 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 132213#L3011-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 138137#L2695 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 137091#L2707-2 havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 142847#initPersonOnFloor_returnLabel#1 havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 144290#aliceCall_returnLabel#1 havoc aliceCall_#t~ret118#1, aliceCall_~tmp~20#1;assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret119#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~28#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~28#1; 147233#L3343-1 assume !(0 == getOrigin_~person#1); 147388#L3347-1 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~28#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~28#1; 132368#getOrigin_returnLabel#2 angelinaCall_#t~ret119#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~28#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret119#1;havoc angelinaCall_#t~ret119#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; 138463#L2903-1 assume 0 == initPersonOnFloor_~floor#1; 132220#L2904-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 129498#L3011-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 135760#L2695-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 143374#L2707-5 havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 136061#initPersonOnFloor_returnLabel#2 havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 136062#angelinaCall_returnLabel#1 havoc angelinaCall_#t~ret119#1, angelinaCall_~tmp~21#1;assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret86#1, timeShift_~tmp~16#1;havoc timeShift_~tmp~16#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret136#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; 141402#getCurrentHeading_returnLabel#1 __utac_acc__Specification13_spec__1_#t~ret136#1 := getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret136#1;havoc __utac_acc__Specification13_spec__1_#t~ret136#1; 141403#__utac_acc__Specification13_spec__1_returnLabel#1 havoc __utac_acc__Specification13_spec__1_#t~ret136#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; 145910#areDoorsOpen_returnLabel#1 timeShift_#t~ret86#1 := areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~16#1 := timeShift_#t~ret86#1;havoc timeShift_#t~ret86#1; 146693#L1702 assume 0 != timeShift_~tmp~16#1; 143224#L1703 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 134604#L1702-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret137#1, __utac_acc__Specification13_spec__2_#t~ret138#1, __utac_acc__Specification13_spec__2_#t~ret139#1, __utac_acc__Specification13_spec__2_#t~ret140#1, __utac_acc__Specification13_spec__2_#t~ret141#1, __utac_acc__Specification13_spec__2_#t~ret142#1, __utac_acc__Specification13_spec__2_~tmp~30#1, __utac_acc__Specification13_spec__2_~tmp___0~13#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_tmp7~7#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~8#1;havoc __utac_acc__Specification13_spec__2_~tmp~30#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~13#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_tmp7~7#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~8#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~8#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~7#1 / 3); 133105#L3236 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~8#1; 133106#L3237 assume !(1 == ~prevDir~0); 131985#L3263 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~19#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~19#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 131987#L1922-2 assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~0#1 := 0;existInLiftCallsInDirection_~i~0#1 := 1 + ~currentFloorID~0; 143618#L1926-8 [2023-11-19 07:46:33,367 INFO L750 eck$LassoCheckResult]: Loop: 143618#L1926-8 assume !false; 144615#L1927-2 assume existInLiftCallsInDirection_~i~0#1 < 5; 131332#L1928-2 assume !(0 == existInLiftCallsInDirection_~i~0#1); 131334#$Ultimate##7236 assume !(1 == existInLiftCallsInDirection_~i~0#1); 145966#$Ultimate##7240 assume !(2 == existInLiftCallsInDirection_~i~0#1); 146363#$Ultimate##7244 assume !(3 == existInLiftCallsInDirection_~i~0#1); 131013#$Ultimate##7248 assume !(4 == existInLiftCallsInDirection_~i~0#1); 131015#L1969-5 existInLiftCallsInDirection_~i~0#1 := 1 + existInLiftCallsInDirection_~i~0#1; 143618#L1926-8 [2023-11-19 07:46:33,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1862529426, now seen corresponding path program 1 times [2023-11-19 07:46:33,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:33,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311534014] [2023-11-19 07:46:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:33,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:33,593 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 07:46:33,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:33,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311534014] [2023-11-19 07:46:33,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311534014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:33,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:33,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:33,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309738358] [2023-11-19 07:46:33,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:33,596 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:46:33,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:33,598 INFO L85 PathProgramCache]: Analyzing trace with hash -563795075, now seen corresponding path program 1 times [2023-11-19 07:46:33,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:33,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544049876] [2023-11-19 07:46:33,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:33,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:33,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:46:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:33,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:46:33,663 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:46:33,664 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:46:33,664 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:46:33,664 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:46:33,664 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:46:33,664 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:33,664 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:46:33,664 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:46:33,664 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product24.cil.c_Iteration2_Loop [2023-11-19 07:46:33,665 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:46:33,665 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:46:33,667 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 07:46:33,722 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:46:33,722 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:46:33,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:33,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:33,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:33,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:46:33,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:46:33,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:46:33,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:33,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:33,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:33,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:33,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:46:33,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:46:33,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:46:33,837 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:46:33,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:33,847 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:46:33,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:46:33,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:46:33,847 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:46:33,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:46:33,848 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:33,848 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:46:33,848 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:46:33,848 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product24.cil.c_Iteration2_Loop [2023-11-19 07:46:33,848 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:46:33,848 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:46:33,849 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 07:46:33,903 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:46:33,903 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:46:33,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:33,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:33,905 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:33,914 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 07:46:33,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:46:33,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:46:33,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:46:33,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:46:33,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:46:33,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:46:33,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:46:33,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:46:33,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:46:33,937 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:46:33,937 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:46:33,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:46:33,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:33,938 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:34,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:46:34,125 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:46:34,125 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:46:34,125 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:46:34,125 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 07:46:34,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18dc5ab5-c2f3-45b9-8a6f-28bdcc79c0eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:34,149 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:46:34,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:34,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:46:34,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:34,337 WARN L260 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:46:34,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:34,515 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 07:46:34,516 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 07:46:34,516 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17939 states and 33559 transitions. cyclomatic complexity: 15654 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)