./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/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_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/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_1427fa0d-5319-48e9-9d11-eccfe7051724/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 5ead0301c8481fccc00f115bae086423ed9e315d4392b2a0732a4d381346437b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:14,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:14,506 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:06:14,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:14,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:14,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:14,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:14,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:14,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:14,575 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:14,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:14,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:14,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:14,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:14,578 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:14,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:14,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:14,580 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:14,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:14,581 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:14,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:14,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:14,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:14,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:14,583 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:14,584 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:14,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:14,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:14,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:14,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:14,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:14,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:14,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:14,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:14,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:14,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:14,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:14,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:14,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:14,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:14,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:14,599 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:14,600 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_1427fa0d-5319-48e9-9d11-eccfe7051724/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ead0301c8481fccc00f115bae086423ed9e315d4392b2a0732a4d381346437b [2024-10-31 22:06:14,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:14,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:15,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:15,002 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:15,002 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:15,004 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c Unable to find full path for "g++" [2024-10-31 22:06:17,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:17,789 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:17,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c [2024-10-31 22:06:17,816 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/data/0b1a89872/047c1982c04845c69982329d0708ca14/FLAG04151dcb0 [2024-10-31 22:06:17,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/data/0b1a89872/047c1982c04845c69982329d0708ca14 [2024-10-31 22:06:17,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:17,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:17,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:17,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:17,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:17,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52124977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17, skipping insertion in model container [2024-10-31 22:06:17,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:18,830 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_1427fa0d-5319-48e9-9d11-eccfe7051724/sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c[71521,71534] [2024-10-31 22:06:18,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:18,919 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:18,933 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2024-10-31 22:06:18,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [169] [2024-10-31 22:06:18,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [187] [2024-10-31 22:06:18,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] [2024-10-31 22:06:18,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [911] [2024-10-31 22:06:18,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [946] [2024-10-31 22:06:18,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1042] [2024-10-31 22:06:18,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1709] [2024-10-31 22:06:18,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3370] [2024-10-31 22:06:18,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [3379] [2024-10-31 22:06:19,189 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_1427fa0d-5319-48e9-9d11-eccfe7051724/sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c[71521,71534] [2024-10-31 22:06:19,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:19,251 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:19,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19 WrapperNode [2024-10-31 22:06:19,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:19,257 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:19,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:19,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:19,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,401 INFO L138 Inliner]: procedures = 96, calls = 348, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 906 [2024-10-31 22:06:19,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:19,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:19,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:19,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:19,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,481 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 22:06:19,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:19,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:19,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:19,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:19,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (1/1) ... [2024-10-31 22:06:19,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:19,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:19,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:19,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1427fa0d-5319-48e9-9d11-eccfe7051724/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-31 22:06:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-31 22:06:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-31 22:06:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-31 22:06:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-10-31 22:06:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-10-31 22:06:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-31 22:06:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-31 22:06:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-10-31 22:06:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-10-31 22:06:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-31 22:06:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-31 22:06:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-10-31 22:06:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-10-31 22:06:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-31 22:06:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-31 22:06:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-10-31 22:06:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-10-31 22:06:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:06:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:06:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:06:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:06:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-10-31 22:06:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-10-31 22:06:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-31 22:06:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-31 22:06:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-31 22:06:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-31 22:06:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-31 22:06:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-31 22:06:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-31 22:06:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-31 22:06:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-31 22:06:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-31 22:06:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-31 22:06:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-31 22:06:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-31 22:06:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-31 22:06:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-31 22:06:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-31 22:06:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-31 22:06:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-31 22:06:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:06:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:06:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:06:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:06:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:06:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:06:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 22:06:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 22:06:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 22:06:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 22:06:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 22:06:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 22:06:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-31 22:06:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-31 22:06:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-31 22:06:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-31 22:06:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-31 22:06:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-31 22:06:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-31 22:06:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-31 22:06:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-10-31 22:06:19,703 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-10-31 22:06:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-31 22:06:19,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-31 22:06:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-31 22:06:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-31 22:06:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-31 22:06:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-31 22:06:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-31 22:06:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-31 22:06:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-10-31 22:06:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-10-31 22:06:19,972 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:19,974 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:21,987 INFO L? ?]: Removed 475 outVars from TransFormulas that were not future-live. [2024-10-31 22:06:21,987 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:22,037 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:22,040 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:06:22,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:22 BoogieIcfgContainer [2024-10-31 22:06:22,041 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:22,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:22,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:22,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:22,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:17" (1/3) ... [2024-10-31 22:06:22,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c67578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:22, skipping insertion in model container [2024-10-31 22:06:22,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:19" (2/3) ... [2024-10-31 22:06:22,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c67578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:22, skipping insertion in model container [2024-10-31 22:06:22,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:22" (3/3) ... [2024-10-31 22:06:22,055 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product32.cil.c [2024-10-31 22:06:22,090 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:22,090 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:06:22,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:22,300 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;@360bf389, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:22,301 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:06:22,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 581 states, 449 states have (on average 1.6614699331848553) internal successors, (746), 467 states have internal predecessors, (746), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2024-10-31 22:06:22,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-31 22:06:22,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:22,339 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:06:22,339 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:22,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:22,347 INFO L85 PathProgramCache]: Analyzing trace with hash 572434695, now seen corresponding path program 1 times [2024-10-31 22:06:22,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:22,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002846428] [2024-10-31 22:06:22,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:22,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:06:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:06:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:06:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-31 22:06:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-31 22:06:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:06:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:06:23,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:23,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002846428] [2024-10-31 22:06:23,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002846428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:23,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:23,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:23,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260605083] [2024-10-31 22:06:23,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:23,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:23,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:23,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:23,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:23,816 INFO L87 Difference]: Start difference. First operand has 581 states, 449 states have (on average 1.6614699331848553) internal successors, (746), 467 states have internal predecessors, (746), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:06:29,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:29,155 INFO L93 Difference]: Finished difference Result 1278 states and 2121 transitions. [2024-10-31 22:06:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:29,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2024-10-31 22:06:29,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:29,195 INFO L225 Difference]: With dead ends: 1278 [2024-10-31 22:06:29,195 INFO L226 Difference]: Without dead ends: 697 [2024-10-31 22:06:29,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:06:29,213 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 688 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:29,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 1571 Invalid, 1894 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-10-31 22:06:29,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-10-31 22:06:29,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 576. [2024-10-31 22:06:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 445 states have (on average 1.651685393258427) internal successors, (735), 462 states have internal predecessors, (735), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-31 22:06:29,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 940 transitions. [2024-10-31 22:06:29,432 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 940 transitions. Word has length 63 [2024-10-31 22:06:29,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:29,433 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 940 transitions. [2024-10-31 22:06:29,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:06:29,433 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 940 transitions. [2024-10-31 22:06:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-31 22:06:29,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:29,437 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:06:29,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:29,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:29,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:29,439 INFO L85 PathProgramCache]: Analyzing trace with hash -980358575, now seen corresponding path program 1 times [2024-10-31 22:06:29,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:29,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822441973] [2024-10-31 22:06:29,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:29,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:29,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:06:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:29,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:29,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:06:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:29,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:06:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:29,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:06:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:29,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:29,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:06:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:29,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-31 22:06:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:29,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:06:29,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:29,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822441973] [2024-10-31 22:06:29,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822441973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:29,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:29,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:29,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917038104] [2024-10-31 22:06:29,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:29,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:29,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:29,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:29,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:29,927 INFO L87 Difference]: Start difference. First operand 576 states and 940 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:06:33,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:33,993 INFO L93 Difference]: Finished difference Result 1256 states and 2065 transitions. [2024-10-31 22:06:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:06:33,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-10-31 22:06:33,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:34,002 INFO L225 Difference]: With dead ends: 1256 [2024-10-31 22:06:34,003 INFO L226 Difference]: Without dead ends: 697 [2024-10-31 22:06:34,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:34,009 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 681 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:34,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 1528 Invalid, 1891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [113 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-31 22:06:34,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-10-31 22:06:34,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 576. [2024-10-31 22:06:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 445 states have (on average 1.649438202247191) internal successors, (734), 462 states have internal predecessors, (734), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-31 22:06:34,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 939 transitions. [2024-10-31 22:06:34,180 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 939 transitions. Word has length 64 [2024-10-31 22:06:34,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:34,181 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 939 transitions. [2024-10-31 22:06:34,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:06:34,181 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 939 transitions. [2024-10-31 22:06:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-31 22:06:34,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:34,184 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:06:34,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:34,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:34,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:34,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1204370371, now seen corresponding path program 1 times [2024-10-31 22:06:34,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:34,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134099240] [2024-10-31 22:06:34,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:34,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:06:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:06:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-31 22:06:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:06:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:06:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:06:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:06:34,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:34,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134099240] [2024-10-31 22:06:34,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134099240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:34,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:34,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:34,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497018185] [2024-10-31 22:06:34,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:34,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:34,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:34,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:34,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:34,563 INFO L87 Difference]: Start difference. First operand 576 states and 939 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:06:38,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:38,501 INFO L93 Difference]: Finished difference Result 1256 states and 2064 transitions. [2024-10-31 22:06:38,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:06:38,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-10-31 22:06:38,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:38,509 INFO L225 Difference]: With dead ends: 1256 [2024-10-31 22:06:38,509 INFO L226 Difference]: Without dead ends: 697 [2024-10-31 22:06:38,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:38,514 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 679 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:38,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1528 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-31 22:06:38,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-10-31 22:06:38,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 576. [2024-10-31 22:06:38,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 445 states have (on average 1.6471910112359551) internal successors, (733), 462 states have internal predecessors, (733), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-31 22:06:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 938 transitions. [2024-10-31 22:06:38,697 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 938 transitions. Word has length 65 [2024-10-31 22:06:38,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:38,697 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 938 transitions. [2024-10-31 22:06:38,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:06:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 938 transitions. [2024-10-31 22:06:38,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-31 22:06:38,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:38,704 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:06:38,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:38,704 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:38,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1006796275, now seen corresponding path program 1 times [2024-10-31 22:06:38,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:38,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090136505] [2024-10-31 22:06:38,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:38,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:38,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:06:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:06:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:06:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:06:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:06:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:06:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:06:39,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:39,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090136505] [2024-10-31 22:06:39,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090136505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:39,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:39,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:39,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96175042] [2024-10-31 22:06:39,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:39,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:39,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:39,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:39,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:39,061 INFO L87 Difference]: Start difference. First operand 576 states and 938 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:06:43,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:43,034 INFO L93 Difference]: Finished difference Result 1256 states and 2063 transitions. [2024-10-31 22:06:43,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:06:43,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2024-10-31 22:06:43,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:43,042 INFO L225 Difference]: With dead ends: 1256 [2024-10-31 22:06:43,042 INFO L226 Difference]: Without dead ends: 697 [2024-10-31 22:06:43,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:43,046 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 677 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:43,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1528 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-31 22:06:43,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-10-31 22:06:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 576. [2024-10-31 22:06:43,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 445 states have (on average 1.644943820224719) internal successors, (732), 462 states have internal predecessors, (732), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-31 22:06:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 937 transitions. [2024-10-31 22:06:43,153 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 937 transitions. Word has length 66 [2024-10-31 22:06:43,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:43,154 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 937 transitions. [2024-10-31 22:06:43,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:06:43,155 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 937 transitions. [2024-10-31 22:06:43,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-31 22:06:43,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:43,156 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:06:43,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:43,157 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:43,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:43,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2051772801, now seen corresponding path program 1 times [2024-10-31 22:06:43,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:43,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117756485] [2024-10-31 22:06:43,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:43,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:06:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:06:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:06:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:06:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:06:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 22:06:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:06:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:06:43,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:43,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117756485] [2024-10-31 22:06:43,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117756485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:43,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:43,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:43,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355508021] [2024-10-31 22:06:43,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:43,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:43,545 INFO L87 Difference]: Start difference. First operand 576 states and 937 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)