./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3416b3e017f399176a4f7a837e050107ced7390b025fd07360efb8b6075a94d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:08:43,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:08:43,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:08:43,594 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:08:43,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:08:43,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:08:43,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:08:43,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:08:43,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:08:43,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:08:43,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:08:43,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:08:43,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:08:43,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:08:43,622 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:08:43,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:08:43,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:08:43,623 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:08:43,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:08:43,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:08:43,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:08:43,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:08:43,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:08:43,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:08:43,626 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:08:43,626 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:08:43,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:08:43,627 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:08:43,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:08:43,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:08:43,628 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:08:43,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:08:43,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:43,629 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:08:43,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:08:43,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:08:43,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:08:43,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:08:43,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:08:43,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:08:43,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:08:43,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:08:43,632 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3416b3e017f399176a4f7a837e050107ced7390b025fd07360efb8b6075a94d [2024-10-31 22:08:44,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:08:44,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:08:44,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:08:44,156 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:08:44,160 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:08:44,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c Unable to find full path for "g++" [2024-10-31 22:08:46,442 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:08:46,815 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:08:46,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c [2024-10-31 22:08:46,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/data/c3c6b744a/e556435ffe404752839213318c472e55/FLAG638997893 [2024-10-31 22:08:46,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/data/c3c6b744a/e556435ffe404752839213318c472e55 [2024-10-31 22:08:46,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:08:46,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:08:46,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:46,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:08:46,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:08:46,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:46" (1/1) ... [2024-10-31 22:08:46,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc6a9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:46, skipping insertion in model container [2024-10-31 22:08:46,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:46" (1/1) ... [2024-10-31 22:08:46,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:08:47,340 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c[10611,10624] [2024-10-31 22:08:47,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:47,693 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:08:47,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2024-10-31 22:08:47,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2024-10-31 22:08:47,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [532] [2024-10-31 22:08:47,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [627] [2024-10-31 22:08:47,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [636] [2024-10-31 22:08:47,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1303] [2024-10-31 22:08:47,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1338] [2024-10-31 22:08:47,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [1350] [2024-10-31 22:08:47,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1533] [2024-10-31 22:08:47,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3112] [2024-10-31 22:08:47,758 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c[10611,10624] [2024-10-31 22:08:47,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:47,935 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:08:47,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47 WrapperNode [2024-10-31 22:08:47,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:47,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:47,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:08:47,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:08:47,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:47,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,103 INFO L138 Inliner]: procedures = 95, calls = 347, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 919 [2024-10-31 22:08:48,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:48,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:08:48,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:08:48,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:08:48,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,124 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,173 INFO L175 MemorySlicer]: 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]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-10-31 22:08:48,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:08:48,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:08:48,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:08:48,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:08:48,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (1/1) ... [2024-10-31 22:08:48,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:48,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:48,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:08:48,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af2251d-7f72-4547-8c1f-2b32ef25a2e4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:08:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:08:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-31 22:08:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-31 22:08:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-10-31 22:08:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-10-31 22:08:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-31 22:08:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-31 22:08:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-31 22:08:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-31 22:08:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-31 22:08:48,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-31 22:08:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-10-31 22:08:48,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-10-31 22:08:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:08:48,377 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:08:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:08:48,378 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:08:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-10-31 22:08:48,378 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-10-31 22:08:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-31 22:08:48,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-31 22:08:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-31 22:08:48,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-31 22:08:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-31 22:08:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-31 22:08:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-31 22:08:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-31 22:08:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-31 22:08:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-31 22:08:48,382 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-31 22:08:48,382 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-31 22:08:48,382 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-31 22:08:48,382 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-31 22:08:48,382 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-31 22:08:48,382 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-31 22:08:48,382 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-31 22:08:48,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-31 22:08:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-31 22:08:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-31 22:08:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:08:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:08:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:08:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:08:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:08:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:08:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 22:08:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 22:08:48,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 22:08:48,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 22:08:48,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 22:08:48,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 22:08:48,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-31 22:08:48,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-31 22:08:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-31 22:08:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-31 22:08:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-31 22:08:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-31 22:08:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-31 22:08:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-31 22:08:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-10-31 22:08:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-10-31 22:08:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-31 22:08:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-31 22:08:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-31 22:08:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-31 22:08:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-31 22:08:48,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-31 22:08:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2024-10-31 22:08:48,391 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2024-10-31 22:08:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:08:48,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:08:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-31 22:08:48,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-31 22:08:48,666 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:08:48,670 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:08:50,341 INFO L? ?]: Removed 462 outVars from TransFormulas that were not future-live. [2024-10-31 22:08:50,341 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:08:50,377 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:08:50,377 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:08:50,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:50 BoogieIcfgContainer [2024-10-31 22:08:50,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:08:50,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:08:50,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:08:50,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:08:50,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:08:46" (1/3) ... [2024-10-31 22:08:50,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238c612c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:50, skipping insertion in model container [2024-10-31 22:08:50,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:47" (2/3) ... [2024-10-31 22:08:50,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238c612c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:50, skipping insertion in model container [2024-10-31 22:08:50,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:50" (3/3) ... [2024-10-31 22:08:50,387 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product30.cil.c [2024-10-31 22:08:50,406 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:08:50,406 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:08:50,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:08:50,501 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36067aea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:08:50,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:08:50,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 581 states, 456 states have (on average 1.6929824561403508) internal successors, (772), 479 states have internal predecessors, (772), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) [2024-10-31 22:08:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-31 22:08:50,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:50,533 INFO L215 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:50,533 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:08:50,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:50,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1129781487, now seen corresponding path program 1 times [2024-10-31 22:08:50,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:50,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238463509] [2024-10-31 22:08:50,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:50,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:51,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:08:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:51,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:08:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:51,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:08:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:08:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:08:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:08:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:52,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:52,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238463509] [2024-10-31 22:08:52,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238463509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:52,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:52,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:52,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766314686] [2024-10-31 22:08:52,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:52,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:52,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:52,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:52,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:52,161 INFO L87 Difference]: Start difference. First operand has 581 states, 456 states have (on average 1.6929824561403508) internal successors, (772), 479 states have internal predecessors, (772), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-31 22:09:00,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:00,594 INFO L93 Difference]: Finished difference Result 1305 states and 2205 transitions. [2024-10-31 22:09:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:09:00,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-10-31 22:09:00,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:00,621 INFO L225 Difference]: With dead ends: 1305 [2024-10-31 22:09:00,621 INFO L226 Difference]: Without dead ends: 736 [2024-10-31 22:09:00,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:09:00,634 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 710 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 2823 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:00,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1205 Invalid, 2946 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2823 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-10-31 22:09:00,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-10-31 22:09:00,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 573. [2024-10-31 22:09:00,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 450 states have (on average 1.6888888888888889) internal successors, (760), 471 states have internal predecessors, (760), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-10-31 22:09:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 951 transitions. [2024-10-31 22:09:00,950 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 951 transitions. Word has length 60 [2024-10-31 22:09:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:00,951 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 951 transitions. [2024-10-31 22:09:00,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-31 22:09:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 951 transitions. [2024-10-31 22:09:00,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-31 22:09:00,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:00,962 INFO L215 NwaCegarLoop]: trace 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, 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] [2024-10-31 22:09:00,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:09:00,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:00,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:00,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1483396888, now seen corresponding path program 1 times [2024-10-31 22:09:00,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:00,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390720834] [2024-10-31 22:09:00,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:00,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:01,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:09:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:01,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:01,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:09:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:01,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:09:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:01,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:02,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:02,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:09:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:02,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:02,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390720834] [2024-10-31 22:09:02,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390720834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:02,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:02,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:09:02,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652695691] [2024-10-31 22:09:02,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:02,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:09:02,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:02,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:09:02,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:09:02,028 INFO L87 Difference]: Start difference. First operand 573 states and 951 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-31 22:09:09,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:09,128 INFO L93 Difference]: Finished difference Result 1291 states and 2171 transitions. [2024-10-31 22:09:09,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:09:09,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-10-31 22:09:09,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:09,136 INFO L225 Difference]: With dead ends: 1291 [2024-10-31 22:09:09,136 INFO L226 Difference]: Without dead ends: 736 [2024-10-31 22:09:09,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:09:09,141 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 708 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 2813 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:09,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1141 Invalid, 2940 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [127 Valid, 2813 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-10-31 22:09:09,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-10-31 22:09:09,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 573. [2024-10-31 22:09:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 450 states have (on average 1.6866666666666668) internal successors, (759), 471 states have internal predecessors, (759), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-10-31 22:09:09,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 950 transitions. [2024-10-31 22:09:09,299 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 950 transitions. Word has length 63 [2024-10-31 22:09:09,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:09,300 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 950 transitions. [2024-10-31 22:09:09,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-31 22:09:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 950 transitions. [2024-10-31 22:09:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-31 22:09:09,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:09,305 INFO L215 NwaCegarLoop]: trace 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, 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] [2024-10-31 22:09:09,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:09:09,305 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:09,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2110645953, now seen corresponding path program 1 times [2024-10-31 22:09:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:09,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199930076] [2024-10-31 22:09:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:09,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:09:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:09,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:09,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:09:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:10,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:09:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:10,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:10,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:10,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:09:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:10,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:10,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199930076] [2024-10-31 22:09:10,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199930076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:10,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:10,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:09:10,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800370977] [2024-10-31 22:09:10,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:10,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:09:10,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:10,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:09:10,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:09:10,100 INFO L87 Difference]: Start difference. First operand 573 states and 950 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)