./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product11.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_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/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_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/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_868ad8a8-5079-409e-9553-61778743c336/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 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:19:26,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:19:26,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:19:26,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:19:26,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:19:26,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:19:26,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:19:26,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:19:26,372 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:19:26,372 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:19:26,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:19:26,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:19:26,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:19:26,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:19:26,375 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:19:26,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:19:26,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:19:26,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:19:26,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:19:26,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:19:26,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:19:26,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:19:26,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:19:26,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:19:26,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:19:26,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:19:26,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:19:26,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:19:26,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:19:26,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:19:26,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:19:26,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:19:26,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:26,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:19:26,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:19:26,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:19:26,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:19:26,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:19:26,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:19:26,393 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:19:26,393 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:19:26,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:19:26,394 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_868ad8a8-5079-409e-9553-61778743c336/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d [2024-10-31 22:19:26,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:19:26,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:19:26,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:19:26,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:19:26,714 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:19:26,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c Unable to find full path for "g++" [2024-10-31 22:19:28,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:19:29,201 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:19:29,204 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c [2024-10-31 22:19:29,233 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/data/9053026c6/e17f3fb826a24cb6b2f35870c68422f3/FLAG042b27b2d [2024-10-31 22:19:29,256 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/data/9053026c6/e17f3fb826a24cb6b2f35870c68422f3 [2024-10-31 22:19:29,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:19:29,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:19:29,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:29,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:19:29,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:19:29,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:29" (1/1) ... [2024-10-31 22:19:29,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bda1dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:29, skipping insertion in model container [2024-10-31 22:19:29,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:29" (1/1) ... [2024-10-31 22:19:29,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:19:29,985 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_868ad8a8-5079-409e-9553-61778743c336/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-10-31 22:19:29,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:30,004 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:19:30,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-10-31 22:19:30,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [148] [2024-10-31 22:19:30,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [505] [2024-10-31 22:19:30,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [871] [2024-10-31 22:19:30,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1034] [2024-10-31 22:19:30,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1069] [2024-10-31 22:19:30,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1189] [2024-10-31 22:19:30,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1201] [2024-10-31 22:19:30,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2729] [2024-10-31 22:19:30,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3390] [2024-10-31 22:19:30,149 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_868ad8a8-5079-409e-9553-61778743c336/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-10-31 22:19:30,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:30,190 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:19:30,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30 WrapperNode [2024-10-31 22:19:30,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:30,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:30,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:19:30,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:19:30,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,316 INFO L138 Inliner]: procedures = 93, calls = 335, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1087 [2024-10-31 22:19:30,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:30,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:19:30,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:19:30,318 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:19:30,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,356 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,417 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 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 22:19:30,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:19:30,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:19:30,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:19:30,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:19:30,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (1/1) ... [2024-10-31 22:19:30,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:30,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:30,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:30,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868ad8a8-5079-409e-9553-61778743c336/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:19:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:19:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-10-31 22:19:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-10-31 22:19:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-31 22:19:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-31 22:19:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-10-31 22:19:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-10-31 22:19:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-31 22:19:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-31 22:19:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-31 22:19:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-31 22:19:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:19:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:19:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:19:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:19:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-31 22:19:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-31 22:19:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-31 22:19:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-31 22:19:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-31 22:19:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-31 22:19:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-31 22:19:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-31 22:19:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-31 22:19:30,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-31 22:19:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-31 22:19:30,637 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-31 22:19:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-10-31 22:19:30,637 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-10-31 22:19:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-31 22:19:30,637 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-31 22:19:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-31 22:19:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-31 22:19:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-31 22:19:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-31 22:19:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-31 22:19:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-31 22:19:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-10-31 22:19:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-10-31 22:19:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:19:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:19:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:19:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:19:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:19:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:19:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 22:19:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 22:19:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 22:19:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 22:19:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 22:19:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 22:19:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-31 22:19:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-31 22:19:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-31 22:19:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-31 22:19:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-31 22:19:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-31 22:19:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-31 22:19:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-31 22:19:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-31 22:19:30,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-31 22:19:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-31 22:19:30,641 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-31 22:19:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-31 22:19:30,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-31 22:19:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:19:30,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:19:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-31 22:19:30,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-31 22:19:30,901 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:19:30,904 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:19:32,583 INFO L? ?]: Removed 437 outVars from TransFormulas that were not future-live. [2024-10-31 22:19:32,584 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:19:32,626 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:19:32,627 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:19:32,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:32 BoogieIcfgContainer [2024-10-31 22:19:32,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:19:32,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:19:32,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:19:32,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:19:32,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:19:29" (1/3) ... [2024-10-31 22:19:32,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c53616b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:32, skipping insertion in model container [2024-10-31 22:19:32,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:30" (2/3) ... [2024-10-31 22:19:32,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c53616b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:32, skipping insertion in model container [2024-10-31 22:19:32,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:32" (3/3) ... [2024-10-31 22:19:32,644 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product11.cil.c [2024-10-31 22:19:32,663 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:19:32,664 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:19:32,743 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:19:32,749 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;@4c78b724, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:19:32,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:19:32,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 545 states, 429 states have (on average 1.6993006993006994) internal successors, (729), 450 states have internal predecessors, (729), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-31 22:19:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-31 22:19:32,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:32,805 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:32,806 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:19:32,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1289670013, now seen corresponding path program 1 times [2024-10-31 22:19:32,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:32,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852471302] [2024-10-31 22:19:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:32,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:33,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:19:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:33,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:33,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:19:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:19:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:19:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 22:19:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:19:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:19:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:19:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:19:34,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:34,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852471302] [2024-10-31 22:19:34,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852471302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:34,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:34,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:19:34,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652967148] [2024-10-31 22:19:34,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:34,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:19:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:34,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:19:34,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:19:34,754 INFO L87 Difference]: Start difference. First operand has 545 states, 429 states have (on average 1.6993006993006994) internal successors, (729), 450 states have internal predecessors, (729), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-31 22:19:43,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:43,111 INFO L93 Difference]: Finished difference Result 1313 states and 2243 transitions. [2024-10-31 22:19:43,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:19:43,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-10-31 22:19:43,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:43,140 INFO L225 Difference]: With dead ends: 1313 [2024-10-31 22:19:43,140 INFO L226 Difference]: Without dead ends: 780 [2024-10-31 22:19:43,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:19:43,153 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 949 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2957 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:19:43,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 1746 Invalid, 3154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [197 Valid, 2957 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-10-31 22:19:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-10-31 22:19:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 537. [2024-10-31 22:19:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 423 states have (on average 1.6950354609929077) internal successors, (717), 442 states have internal predecessors, (717), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-31 22:19:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 894 transitions. [2024-10-31 22:19:43,415 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 894 transitions. Word has length 104 [2024-10-31 22:19:43,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:43,416 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 894 transitions. [2024-10-31 22:19:43,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-31 22:19:43,417 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 894 transitions. [2024-10-31 22:19:43,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-31 22:19:43,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:43,424 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 22:19:43,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:19:43,424 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:19:43,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:43,426 INFO L85 PathProgramCache]: Analyzing trace with hash 851010391, now seen corresponding path program 1 times [2024-10-31 22:19:43,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:43,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604386277] [2024-10-31 22:19:43,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:43,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:43,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:19:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:43,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:43,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:19:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:19:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:19:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 22:19:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:19:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:19:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:19:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:19:44,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:44,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604386277] [2024-10-31 22:19:44,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604386277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:44,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:44,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:19:44,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418779431] [2024-10-31 22:19:44,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:44,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:19:44,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:44,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:19:44,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:19:44,393 INFO L87 Difference]: Start difference. First operand 537 states and 894 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-31 22:19:51,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:51,433 INFO L93 Difference]: Finished difference Result 1299 states and 2205 transitions. [2024-10-31 22:19:51,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:19:51,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2024-10-31 22:19:51,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:51,444 INFO L225 Difference]: With dead ends: 1299 [2024-10-31 22:19:51,444 INFO L226 Difference]: Without dead ends: 780 [2024-10-31 22:19:51,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:19:51,449 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 1826 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:19:51,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 1593 Invalid, 3207 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [483 Valid, 2724 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-10-31 22:19:51,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-10-31 22:19:51,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 537. [2024-10-31 22:19:51,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 423 states have (on average 1.6926713947990544) internal successors, (716), 442 states have internal predecessors, (716), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-31 22:19:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 893 transitions. [2024-10-31 22:19:51,628 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 893 transitions. Word has length 107 [2024-10-31 22:19:51,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:51,629 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 893 transitions. [2024-10-31 22:19:51,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-31 22:19:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 893 transitions. [2024-10-31 22:19:51,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-31 22:19:51,638 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:51,638 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 22:19:51,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:19:51,639 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:19:51,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:51,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1290038099, now seen corresponding path program 1 times [2024-10-31 22:19:51,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:51,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104316658] [2024-10-31 22:19:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:51,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:19:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:19:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:19:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 22:19:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:19:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:19:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:19:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:19:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:52,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:19:52,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:52,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104316658] [2024-10-31 22:19:52,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104316658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:52,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:52,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:19:52,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234945012] [2024-10-31 22:19:52,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:52,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:19:52,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:52,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:19:52,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:19:52,556 INFO L87 Difference]: Start difference. First operand 537 states and 893 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)