./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:20:20,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:20:20,146 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:20:20,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:20:20,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:20:20,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:20:20,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:20:20,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:20:20,185 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:20:20,185 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:20:20,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:20:20,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:20:20,188 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:20:20,189 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:20:20,190 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:20:20,190 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:20:20,191 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:20:20,192 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:20:20,192 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:20:20,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:20:20,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:20:20,195 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:20:20,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:20:20,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:20:20,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:20:20,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:20:20,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:20:20,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:20:20,199 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:20:20,199 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:20:20,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:20:20,200 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:20:20,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:20:20,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:20:20,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:20:20,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:20:20,202 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:20:20,203 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:20:20,203 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_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f [2023-11-21 22:20:20,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:20:20,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:20:20,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:20:20,562 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:20:20,563 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:20:20,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2023-11-21 22:20:23,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:20:24,278 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:20:24,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2023-11-21 22:20:24,307 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/data/753f922e3/b1a3ff2264344246aa41c3f6518624b1/FLAG77285ec71 [2023-11-21 22:20:24,324 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/data/753f922e3/b1a3ff2264344246aa41c3f6518624b1 [2023-11-21 22:20:24,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:20:24,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:20:24,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:24,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:20:24,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:20:24,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:24" (1/1) ... [2023-11-21 22:20:24,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@348da3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:24, skipping insertion in model container [2023-11-21 22:20:24,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:24" (1/1) ... [2023-11-21 22:20:24,454 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:20:25,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:25,165 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:20:25,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2023-11-21 22:20:25,180 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [169] [2023-11-21 22:20:25,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [837] [2023-11-21 22:20:25,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [932] [2023-11-21 22:20:25,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1290] [2023-11-21 22:20:25,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1382] [2023-11-21 22:20:25,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2960] [2023-11-21 22:20:25,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2995] [2023-11-21 22:20:25,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3004] [2023-11-21 22:20:25,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3019] [2023-11-21 22:20:25,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:25,398 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:20:25,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25 WrapperNode [2023-11-21 22:20:25,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:25,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:25,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:20:25,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:20:25,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:25,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:26,489 INFO L138 Inliner]: procedures = 93, calls = 347, calls flagged for inlining = 199, calls inlined = 1885, statements flattened = 66512 [2023-11-21 22:20:26,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:26,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:20:26,492 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:20:26,492 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:20:26,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:26,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:26,808 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:27,277 INFO L187 HeapSplitter]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2] [2023-11-21 22:20:27,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:27,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:27,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:28,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:28,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:28,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:28,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:20:28,787 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:20:28,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:20:28,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:20:28,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (1/1) ... [2023-11-21 22:20:28,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:28,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:28,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:28,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:20:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:20:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:20:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:20:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:20:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:20:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:20:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:20:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:20:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:20:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 22:20:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 22:20:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 22:20:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 22:20:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 22:20:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-21 22:20:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-21 22:20:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-21 22:20:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-21 22:20:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-21 22:20:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-21 22:20:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-21 22:20:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:20:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:20:29,176 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:20:29,179 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:54,456 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:54,660 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:54,661 INFO L308 CfgBuilder]: Removed 61 assume(true) statements. [2023-11-21 22:20:54,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:54 BoogieIcfgContainer [2023-11-21 22:20:54,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:54,674 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:20:54,674 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:20:54,678 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:20:54,679 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:20:54,679 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:20:24" (1/3) ... [2023-11-21 22:20:54,681 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24199bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:20:54, skipping insertion in model container [2023-11-21 22:20:54,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:20:54,681 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:25" (2/3) ... [2023-11-21 22:20:54,682 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24199bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:20:54, skipping insertion in model container [2023-11-21 22:20:54,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:20:54,683 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:54" (3/3) ... [2023-11-21 22:20:54,684 INFO L332 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product30.cil.c [2023-11-21 22:20:55,072 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:20:55,073 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:20:55,073 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:20:55,078 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:20:55,078 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:20:55,078 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:20:55,079 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:20:55,079 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:20:55,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17942 states, 17941 states have (on average 1.8803299704587257) internal successors, (33735), 17941 states have internal predecessors, (33735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:55,553 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4074 [2023-11-21 22:20:55,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:20:55,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:20:55,563 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] [2023-11-21 22:20:55,563 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:55,563 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:20:55,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17942 states, 17941 states have (on average 1.8803299704587257) internal successors, (33735), 17941 states have internal predecessors, (33735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:55,893 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4074 [2023-11-21 22:20:55,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:20:55,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:20:55,896 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] [2023-11-21 22:20:55,896 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:55,904 INFO L748 eck$LassoCheckResult]: Stem: 4669#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int#1(91, 5, 0, 1);call write~init~int#1(95, 5, 1, 1);call write~init~int#1(93, 5, 2, 1);call write~init~int#1(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int#2(91, 6, 0, 1);call write~init~int#2(93, 6, 1, 1);call write~init~int#2(32, 6, 2, 1);call write~init~int#2(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int#3(32, 7, 0, 1);call write~init~int#3(97, 7, 1, 1);call write~init~int#3(116, 7, 2, 1);call write~init~int#3(32, 7, 3, 1);call write~init~int#3(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int#4(37, 8, 0, 1);call write~init~int#4(105, 8, 1, 1);call write~init~int#4(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int#5(117, 10, 0, 1);call write~init~int#5(112, 10, 1, 1);call write~init~int#5(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int#6(100, 11, 0, 1);call write~init~int#6(111, 11, 1, 1);call write~init~int#6(119, 11, 2, 1);call write~init~int#6(110, 11, 3, 1);call write~init~int#6(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int#7(32, 12, 0, 1);call write~init~int#7(73, 12, 1, 1);call write~init~int#7(76, 12, 2, 1);call write~init~int#7(95, 12, 3, 1);call write~init~int#7(112, 12, 4, 1);call write~init~int#7(58, 12, 5, 1);call write~init~int#7(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int#8(32, 13, 0, 1);call write~init~int#8(37, 13, 1, 1);call write~init~int#8(105, 13, 2, 1);call write~init~int#8(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int#9(32, 14, 0, 1);call write~init~int#9(37, 14, 1, 1);call write~init~int#9(105, 14, 2, 1);call write~init~int#9(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int#10(32, 15, 0, 1);call write~init~int#10(37, 15, 1, 1);call write~init~int#10(105, 15, 2, 1);call write~init~int#10(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int#11(32, 16, 0, 1);call write~init~int#11(37, 16, 1, 1);call write~init~int#11(105, 16, 2, 1);call write~init~int#11(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int#12(32, 17, 0, 1);call write~init~int#12(37, 17, 1, 1);call write~init~int#12(105, 17, 2, 1);call write~init~int#12(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int#13(32, 18, 0, 1);call write~init~int#13(70, 18, 1, 1);call write~init~int#13(95, 18, 2, 1);call write~init~int#13(112, 18, 3, 1);call write~init~int#13(58, 18, 4, 1);call write~init~int#13(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int#14(32, 19, 0, 1);call write~init~int#14(37, 19, 1, 1);call write~init~int#14(105, 19, 2, 1);call write~init~int#14(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int#15(32, 20, 0, 1);call write~init~int#15(37, 20, 1, 1);call write~init~int#15(105, 20, 2, 1);call write~init~int#15(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int#16(32, 21, 0, 1);call write~init~int#16(37, 21, 1, 1);call write~init~int#16(105, 21, 2, 1);call write~init~int#16(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int#17(32, 22, 0, 1);call write~init~int#17(37, 22, 1, 1);call write~init~int#17(105, 22, 2, 1);call write~init~int#17(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int#18(32, 23, 0, 1);call write~init~int#18(37, 23, 1, 1);call write~init~int#18(105, 23, 2, 1);call write~init~int#18(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int#19(10, 24, 0, 1);call write~init~int#19(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 37);~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~prevDir~0 := 0;~cleanupTimeShifts~0 := 12;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 4386#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 16602#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 16276#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 9632#valid_product_returnLabel#1true main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 9011#L1277true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 10459#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 2461#L95true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 2418#getOrigin_returnLabel#1true aliceCall_#t~ret13#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 17148#L530true assume 0 == initPersonOnFloor_~floor#1; 11856#L531true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 14404#L638-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 13174#L322true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 12614#L334-2true havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 9898#initPersonOnFloor_returnLabel#1true havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 16222#aliceCall_returnLabel#1true havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 89#L95-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 9403#getOrigin_returnLabel#2true angelinaCall_#t~ret14#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 7044#L530-1true assume 0 == initPersonOnFloor_~floor#1; 13078#L531-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 10115#L638-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 2952#L322-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 4390#L334-5true havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 3106#initPersonOnFloor_returnLabel#2true havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 7396#angelinaCall_returnLabel#1true havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 6809#getCurrentHeading_returnLabel#1true __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 12525#__utac_acc__Specification13_spec__1_returnLabel#1true havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 14232#areDoorsOpen_returnLabel#1true timeShift_#t~ret84#1 := areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 2458#L2587true assume 0 != timeShift_~tmp~24#1; 5500#L2588true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 17499#L2587-1true assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 5134#L869true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 3712#L870true assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 12393#L2807true assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~3#1 := 0;existInLiftCallsInDirection_~i~3#1 := 1 + ~currentFloorID~0; 6368#L2811-2true [2023-11-21 22:20:55,904 INFO L750 eck$LassoCheckResult]: Loop: 6368#L2811-2true assume !false; 4977#L2812true assume existInLiftCallsInDirection_~i~3#1 < 5; 523#L2813true assume !(0 == existInLiftCallsInDirection_~i~3#1); 15400#$Ultimate##7112true assume !(1 == existInLiftCallsInDirection_~i~3#1); 15878#$Ultimate##7116true assume !(2 == existInLiftCallsInDirection_~i~3#1); 6474#$Ultimate##7120true assume !(3 == existInLiftCallsInDirection_~i~3#1); 2234#$Ultimate##7124true assume !(4 == existInLiftCallsInDirection_~i~3#1); 1017#L2854-1true existInLiftCallsInDirection_~i~3#1 := 1 + existInLiftCallsInDirection_~i~3#1; 6368#L2811-2true [2023-11-21 22:20:55,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:55,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1529622645, now seen corresponding path program 1 times [2023-11-21 22:20:55,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:55,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207562201] [2023-11-21 22:20:55,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:55,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:56,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:56,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207562201] [2023-11-21 22:20:56,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207562201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:56,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:56,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:56,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286944020] [2023-11-21 22:20:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:56,526 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:20:56,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:56,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1374005635, now seen corresponding path program 1 times [2023-11-21 22:20:56,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:56,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708153695] [2023-11-21 22:20:56,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:56,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:56,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:56,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:20:56,651 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:20:56,651 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:20:56,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:20:56,652 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:20:56,652 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:20:56,652 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:56,652 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:20:56,652 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:20:56,653 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration1_Loop [2023-11-21 22:20:56,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:20:56,653 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:20:56,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:56,780 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:20:56,780 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:20:56,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:56,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:56,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:56,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:20:56,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:20:56,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:20:56,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:56,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:56,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:56,837 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:56,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:20:56,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:20:56,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:20:56,894 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:20:56,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:56,900 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:20:56,900 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:20:56,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:20:56,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:20:56,905 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:20:56,905 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:56,905 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:20:56,905 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:20:56,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration1_Loop [2023-11-21 22:20:56,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:20:56,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:20:56,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:56,977 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:20:56,981 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:20:56,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:56,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:56,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:56,993 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 [2023-11-21 22:20:57,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:20:57,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:20:57,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:20:57,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:20:57,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:20:57,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:20:57,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:20:57,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:20:57,028 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:20:57,037 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 22:20:57,037 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-21 22:20:57,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:57,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:57,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:57,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:20:57,092 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:20:57,092 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:20:57,092 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:20:57,093 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~3#1 Supporting invariants [] [2023-11-21 22:20:57,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:57,117 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:20:57,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:57,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:20:57,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:57,366 WARN L260 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:20:57,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:57,631 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 [2023-11-21 22:20:57,667 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17942 states, 17941 states have (on average 1.8803299704587257) internal successors, (33735), 17941 states have internal predecessors, (33735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:00,194 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17942 states, 17941 states have (on average 1.8803299704587257) internal successors, (33735), 17941 states have internal predecessors, (33735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46774 states and 87886 transitions. Complement of second has 18 states. [2023-11-21 22:21:00,197 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 [2023-11-21 22:21:00,202 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) [2023-11-21 22:21:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 60831 transitions. [2023-11-21 22:21:00,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 60831 transitions. Stem has 34 letters. Loop has 8 letters. [2023-11-21 22:21:00,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:21:00,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 60831 transitions. Stem has 42 letters. Loop has 8 letters. [2023-11-21 22:21:00,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:21:00,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 60831 transitions. Stem has 34 letters. Loop has 16 letters. [2023-11-21 22:21:00,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:21:00,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46774 states and 87886 transitions. [2023-11-21 22:21:00,749 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 8066 [2023-11-21 22:21:01,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46774 states to 32281 states and 60573 transitions. [2023-11-21 22:21:01,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32251 [2023-11-21 22:21:01,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32252 [2023-11-21 22:21:01,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32281 states and 60573 transitions. [2023-11-21 22:21:01,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:21:01,146 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32281 states and 60573 transitions. [2023-11-21 22:21:01,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32281 states and 60573 transitions. [2023-11-21 22:21:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32281 to 32255. [2023-11-21 22:21:01,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32255 states, 32255 states have (on average 1.876732289567509) internal successors, (60534), 32254 states have internal predecessors, (60534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:02,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32255 states to 32255 states and 60534 transitions. [2023-11-21 22:21:02,124 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32255 states and 60534 transitions. [2023-11-21 22:21:02,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:02,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:21:02,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:21:02,131 INFO L87 Difference]: Start difference. First operand 32255 states and 60534 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:03,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:03,412 INFO L93 Difference]: Finished difference Result 32239 states and 60405 transitions. [2023-11-21 22:21:03,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32239 states and 60405 transitions. [2023-11-21 22:21:03,665 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 8050 [2023-11-21 22:21:03,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32239 states to 32230 states and 60396 transitions. [2023-11-21 22:21:03,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32211 [2023-11-21 22:21:03,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32211 [2023-11-21 22:21:03,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32230 states and 60396 transitions. [2023-11-21 22:21:03,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:21:03,921 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32230 states and 60396 transitions. [2023-11-21 22:21:03,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32230 states and 60396 transitions. [2023-11-21 22:21:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32230 to 17929. [2023-11-21 22:21:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17929 states, 17929 states have (on average 1.874003011880194) internal successors, (33599), 17928 states have internal predecessors, (33599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:04,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17929 states to 17929 states and 33599 transitions. [2023-11-21 22:21:04,497 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17929 states and 33599 transitions. [2023-11-21 22:21:04,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:21:04,499 INFO L428 stractBuchiCegarLoop]: Abstraction has 17929 states and 33599 transitions. [2023-11-21 22:21:04,499 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:21:04,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17929 states and 33599 transitions. [2023-11-21 22:21:04,600 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2023-11-21 22:21:04,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:21:04,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:21:04,602 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] [2023-11-21 22:21:04,602 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:04,603 INFO L748 eck$LassoCheckResult]: Stem: 138470#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int#1(91, 5, 0, 1);call write~init~int#1(95, 5, 1, 1);call write~init~int#1(93, 5, 2, 1);call write~init~int#1(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int#2(91, 6, 0, 1);call write~init~int#2(93, 6, 1, 1);call write~init~int#2(32, 6, 2, 1);call write~init~int#2(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int#3(32, 7, 0, 1);call write~init~int#3(97, 7, 1, 1);call write~init~int#3(116, 7, 2, 1);call write~init~int#3(32, 7, 3, 1);call write~init~int#3(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int#4(37, 8, 0, 1);call write~init~int#4(105, 8, 1, 1);call write~init~int#4(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int#5(117, 10, 0, 1);call write~init~int#5(112, 10, 1, 1);call write~init~int#5(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int#6(100, 11, 0, 1);call write~init~int#6(111, 11, 1, 1);call write~init~int#6(119, 11, 2, 1);call write~init~int#6(110, 11, 3, 1);call write~init~int#6(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int#7(32, 12, 0, 1);call write~init~int#7(73, 12, 1, 1);call write~init~int#7(76, 12, 2, 1);call write~init~int#7(95, 12, 3, 1);call write~init~int#7(112, 12, 4, 1);call write~init~int#7(58, 12, 5, 1);call write~init~int#7(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int#8(32, 13, 0, 1);call write~init~int#8(37, 13, 1, 1);call write~init~int#8(105, 13, 2, 1);call write~init~int#8(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int#9(32, 14, 0, 1);call write~init~int#9(37, 14, 1, 1);call write~init~int#9(105, 14, 2, 1);call write~init~int#9(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int#10(32, 15, 0, 1);call write~init~int#10(37, 15, 1, 1);call write~init~int#10(105, 15, 2, 1);call write~init~int#10(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int#11(32, 16, 0, 1);call write~init~int#11(37, 16, 1, 1);call write~init~int#11(105, 16, 2, 1);call write~init~int#11(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int#12(32, 17, 0, 1);call write~init~int#12(37, 17, 1, 1);call write~init~int#12(105, 17, 2, 1);call write~init~int#12(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int#13(32, 18, 0, 1);call write~init~int#13(70, 18, 1, 1);call write~init~int#13(95, 18, 2, 1);call write~init~int#13(112, 18, 3, 1);call write~init~int#13(58, 18, 4, 1);call write~init~int#13(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int#14(32, 19, 0, 1);call write~init~int#14(37, 19, 1, 1);call write~init~int#14(105, 19, 2, 1);call write~init~int#14(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int#15(32, 20, 0, 1);call write~init~int#15(37, 20, 1, 1);call write~init~int#15(105, 20, 2, 1);call write~init~int#15(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int#16(32, 21, 0, 1);call write~init~int#16(37, 21, 1, 1);call write~init~int#16(105, 21, 2, 1);call write~init~int#16(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int#17(32, 22, 0, 1);call write~init~int#17(37, 22, 1, 1);call write~init~int#17(105, 22, 2, 1);call write~init~int#17(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int#18(32, 23, 0, 1);call write~init~int#18(37, 23, 1, 1);call write~init~int#18(105, 23, 2, 1);call write~init~int#18(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int#19(10, 24, 0, 1);call write~init~int#19(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 37);~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~prevDir~0 := 0;~cleanupTimeShifts~0 := 12;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 138056#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 138057#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 147172#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 144069#valid_product_returnLabel#1 main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 143554#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 143555#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 134869#L95 assume !(0 == getOrigin_~person#1); 131170#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 131171#getOrigin_returnLabel#1 aliceCall_#t~ret13#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 134786#L530 assume 0 == initPersonOnFloor_~floor#1; 145626#L531 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 129538#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 146275#L322 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 129791#L334-2 havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 144278#initPersonOnFloor_returnLabel#1 havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 144279#aliceCall_returnLabel#1 havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 129627#L95-1 assume !(0 == getOrigin_~person#1); 129628#L99-1 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 130386#getOrigin_returnLabel#2 angelinaCall_#t~ret14#1 := getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;havoc getOrigin_#in~person#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 141604#L530-1 assume 0 == initPersonOnFloor_~floor#1; 141605#L531-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 129914#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 135738#L322-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 130457#L334-5 havoc callOnFloor_~floorID#1;havoc callOnFloor_#in~floorID#1;assume { :end_inline_callOnFloor } true; 135987#initPersonOnFloor_returnLabel#2 havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;havoc initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1;assume { :end_inline_initPersonOnFloor } true; 135988#angelinaCall_returnLabel#1 havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 141340#getCurrentHeading_returnLabel#1 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 141341#__utac_acc__Specification13_spec__1_returnLabel#1 havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 145968#areDoorsOpen_returnLabel#1 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 134862#L2587 assume 0 != timeShift_~tmp~24#1; 134863#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 136473#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 139158#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 137007#L870 assume !(1 == ~prevDir~0); 137008#L896 assume 0 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 1;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 146676#L2807-2 assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~3#1 := 0;existInLiftCallsInDirection_~i~3#1 := 1 + ~currentFloorID~0; 141303#L2811-8 [2023-11-21 22:21:04,604 INFO L750 eck$LassoCheckResult]: Loop: 141303#L2811-8 assume !false; 141304#L2812-2 assume existInLiftCallsInDirection_~i~3#1 < 5; 141889#L2813-2 assume !(0 == existInLiftCallsInDirection_~i~3#1); 137275#$Ultimate##7268 assume !(1 == existInLiftCallsInDirection_~i~3#1); 137277#$Ultimate##7272 assume !(2 == existInLiftCallsInDirection_~i~3#1); 140198#$Ultimate##7276 assume !(3 == existInLiftCallsInDirection_~i~3#1); 140199#$Ultimate##7280 assume !(4 == existInLiftCallsInDirection_~i~3#1); 146232#L2854-5 existInLiftCallsInDirection_~i~3#1 := 1 + existInLiftCallsInDirection_~i~3#1; 141303#L2811-8 [2023-11-21 22:21:04,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1898793016, now seen corresponding path program 1 times [2023-11-21 22:21:04,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:04,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436406492] [2023-11-21 22:21:04,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:04,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:04,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:04,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:04,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436406492] [2023-11-21 22:21:04,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436406492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:04,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:04,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:21:04,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653160203] [2023-11-21 22:21:04,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:04,842 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:21:04,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:04,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1728061053, now seen corresponding path program 1 times [2023-11-21 22:21:04,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:04,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064212136] [2023-11-21 22:21:04,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:04,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:21:04,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:21:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:21:04,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:21:04,913 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:21:04,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:21:04,914 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:21:04,914 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:21:04,914 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:21:04,915 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:21:04,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:21:04,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:21:04,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration2_Loop [2023-11-21 22:21:04,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:21:04,915 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:21:04,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:21:04,984 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:21:04,984 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:21:04,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:21:04,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:04,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:04,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:21:04,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:21:05,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:21:05,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:21:05,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:21:05,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:05,050 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:05,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:21:05,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:21:05,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 22:21:05,116 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:21:05,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:21:05,126 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:21:05,126 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:21:05,126 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:21:05,126 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:21:05,126 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:21:05,126 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:21:05,127 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:21:05,127 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:21:05,127 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration2_Loop [2023-11-21 22:21:05,127 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:21:05,127 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:21:05,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:21:05,190 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:21:05,190 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:21:05,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:21:05,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:05,192 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:05,200 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 [2023-11-21 22:21:05,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:21:05,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:21:05,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:21:05,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:21:05,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:21:05,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:21:05,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:21:05,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 22:21:05,228 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:21:05,231 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 22:21:05,231 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-21 22:21:05,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:21:05,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:05,234 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:05,245 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:21:05,245 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:21:05,246 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:21:05,246 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~3#1 Supporting invariants [] [2023-11-21 22:21:05,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 22:21:05,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2176fb7a-5f6f-47d3-b7e8-b80ffdcb8a01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:21:05,270 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:21:05,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:05,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:21:05,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:21:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:05,468 WARN L260 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:21:05,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:21:05,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:05,643 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 [2023-11-21 22:21:05,644 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17929 states and 33599 transitions. cyclomatic complexity: 15704 Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)