./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu --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 64bit --witnessprinter.graph.data.programhash 4d59f12bf134f1df229541fa7d7be9025273d18d299c01e889ca23a568445b7a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:03:47,990 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:03:48,066 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 08:03:48,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:03:48,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:03:48,124 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:03:48,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:03:48,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:03:48,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:03:48,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:03:48,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:03:48,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:03:48,134 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:03:48,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:03:48,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:03:48,136 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:03:48,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:03:48,137 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:03:48,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:03:48,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:03:48,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:03:48,139 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:03:48,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:03:48,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:03:48,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:03:48,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:48,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:03:48,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:03:48,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:03:48,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:03:48,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:03:48,145 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:03:48,145 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:03:48,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:03:48,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:03:48,146 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:03:48,146 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_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d59f12bf134f1df229541fa7d7be9025273d18d299c01e889ca23a568445b7a [2023-11-19 08:03:48,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:03:48,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:03:48,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:03:48,444 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:03:48,445 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:03:48,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2023-11-19 08:03:51,590 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:03:52,189 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:03:52,194 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2023-11-19 08:03:52,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/data/a54acaaad/582d480d94d54fa99f47d4dc4cfb15b2/FLAG326dc2f0b [2023-11-19 08:03:52,255 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/data/a54acaaad/582d480d94d54fa99f47d4dc4cfb15b2 [2023-11-19 08:03:52,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:03:52,259 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:03:52,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:52,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:03:52,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:03:52,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:52" (1/1) ... [2023-11-19 08:03:52,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606b6db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:52, skipping insertion in model container [2023-11-19 08:03:52,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:52" (1/1) ... [2023-11-19 08:03:52,420 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:03:54,052 WARN L240 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_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[216842,216855] [2023-11-19 08:03:54,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:54,179 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:03:54,566 WARN L240 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_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[216842,216855] [2023-11-19 08:03:54,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:54,689 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:03:54,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54 WrapperNode [2023-11-19 08:03:54,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:54,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:54,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:03:54,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:03:54,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:54,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:54,988 INFO L138 Inliner]: procedures = 205, calls = 1435, calls flagged for inlining = 91, calls inlined = 85, statements flattened = 3691 [2023-11-19 08:03:54,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:54,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:03:54,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:03:54,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:03:55,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:55,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:55,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:55,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:55,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:55,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:55,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:55,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:55,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:03:55,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:03:55,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:03:55,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:03:55,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (1/1) ... [2023-11-19 08:03:55,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:55,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:55,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:55,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5777a55d-a8c2-48ec-b86c-31b8d3f2ad52/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:03:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-19 08:03:55,396 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-19 08:03:55,396 INFO L130 BoogieDeclarations]: Found specification of procedure uas_zap_pending [2023-11-19 08:03:55,397 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_zap_pending [2023-11-19 08:03:55,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 08:03:55,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 08:03:55,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 08:03:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 08:03:55,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 08:03:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 08:03:55,398 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-19 08:03:55,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-19 08:03:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_data_urb [2023-11-19 08:03:55,399 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_data_urb [2023-11-19 08:03:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 08:03:55,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 08:03:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 08:03:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 08:03:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-19 08:03:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-19 08:03:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-19 08:03:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-19 08:03:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-19 08:03:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-19 08:03:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 08:03:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 08:03:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure uas_add_work [2023-11-19 08:03:55,405 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_add_work [2023-11-19 08:03:55,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2023-11-19 08:03:55,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2023-11-19 08:03:55,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 08:03:55,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 08:03:55,406 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:03:55,408 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:03:55,408 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_endpoints [2023-11-19 08:03:55,408 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_endpoints [2023-11-19 08:03:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 08:03:55,410 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 08:03:55,410 INFO L130 BoogieDeclarations]: Found specification of procedure uas_log_cmd_state [2023-11-19 08:03:55,410 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_log_cmd_state [2023-11-19 08:03:55,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:03:55,411 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 08:03:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 08:03:55,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-19 08:03:55,412 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-19 08:03:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_urb [2023-11-19 08:03:55,412 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_urb [2023-11-19 08:03:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:03:55,417 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2023-11-19 08:03:55,418 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2023-11-19 08:03:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-19 08:03:55,419 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-19 08:03:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 08:03:55,420 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 08:03:55,420 INFO L130 BoogieDeclarations]: Found specification of procedure uas_xfer_data [2023-11-19 08:03:55,420 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_xfer_data [2023-11-19 08:03:55,420 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-11-19 08:03:55,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-11-19 08:03:55,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wait_anchor_empty_timeout [2023-11-19 08:03:55,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wait_anchor_empty_timeout [2023-11-19 08:03:55,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:03:55,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:03:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 08:03:55,422 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 08:03:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure uas_try_complete [2023-11-19 08:03:55,422 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_try_complete [2023-11-19 08:03:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_report_bus_reset [2023-11-19 08:03:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_report_bus_reset [2023-11-19 08:03:55,423 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 08:03:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 08:03:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-19 08:03:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-19 08:03:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 08:03:55,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 08:03:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure uas_wait_for_pending_cmnds [2023-11-19 08:03:55,427 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_wait_for_pending_cmnds [2023-11-19 08:03:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-11-19 08:03:55,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-11-19 08:03:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-19 08:03:55,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-19 08:03:55,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 08:03:55,428 INFO L130 BoogieDeclarations]: Found specification of procedure uas_data_cmplt [2023-11-19 08:03:55,428 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_data_cmplt [2023-11-19 08:03:55,428 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 08:03:55,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 08:03:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2023-11-19 08:03:55,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2023-11-19 08:03:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 08:03:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure uas_shutdown [2023-11-19 08:03:55,429 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_shutdown [2023-11-19 08:03:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:03:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure uas_do_work [2023-11-19 08:03:55,430 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_do_work [2023-11-19 08:03:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 08:03:55,431 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 08:03:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 08:03:55,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 08:03:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 08:03:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 08:03:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 08:03:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 08:03:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure uas_disconnect [2023-11-19 08:03:55,433 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_disconnect [2023-11-19 08:03:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-11-19 08:03:55,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-11-19 08:03:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-11-19 08:03:55,433 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-11-19 08:03:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:03:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2023-11-19 08:03:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2023-11-19 08:03:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_out [2023-11-19 08:03:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_out [2023-11-19 08:03:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 08:03:55,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 08:03:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 08:03:55,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 08:03:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure uas_stat_cmplt [2023-11-19 08:03:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_stat_cmplt [2023-11-19 08:03:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:03:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:03:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:03:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 08:03:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 08:03:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2023-11-19 08:03:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2023-11-19 08:03:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure uas_configure_endpoints [2023-11-19 08:03:55,439 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_configure_endpoints [2023-11-19 08:03:55,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 08:03:55,439 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 08:03:55,439 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_unsubmitted_urbs [2023-11-19 08:03:55,439 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_unsubmitted_urbs [2023-11-19 08:03:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_uas_alt_setting [2023-11-19 08:03:55,440 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_uas_alt_setting [2023-11-19 08:03:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-19 08:03:55,440 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-19 08:03:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_in [2023-11-19 08:03:55,441 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_in [2023-11-19 08:03:55,441 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 08:03:55,441 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 08:03:55,441 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2023-11-19 08:03:55,441 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2023-11-19 08:03:55,441 INFO L130 BoogieDeclarations]: Found specification of procedure uas_submit_urbs [2023-11-19 08:03:55,442 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_submit_urbs [2023-11-19 08:03:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2023-11-19 08:03:55,443 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2023-11-19 08:03:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2023-11-19 08:03:55,444 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2023-11-19 08:03:55,444 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 08:03:55,444 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 08:03:55,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:03:55,445 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_streams [2023-11-19 08:03:55,445 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_streams [2023-11-19 08:03:55,445 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-19 08:03:55,445 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-19 08:03:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:03:55,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:03:56,170 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:03:56,175 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:03:56,490 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 08:04:00,115 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:00,145 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:00,145 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:04:00,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:00 BoogieIcfgContainer [2023-11-19 08:04:00,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:00,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:00,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:00,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:00,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:52" (1/3) ... [2023-11-19 08:04:00,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8e11c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:00, skipping insertion in model container [2023-11-19 08:04:00,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:54" (2/3) ... [2023-11-19 08:04:00,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8e11c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:00, skipping insertion in model container [2023-11-19 08:04:00,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:00" (3/3) ... [2023-11-19 08:04:00,182 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2023-11-19 08:04:00,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:00,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:04:00,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:00,317 INFO L357 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, mHoare=true, 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;@64147e78, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:00,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:04:00,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 1257 states, 929 states have (on average 1.4155005382131325) internal successors, (1315), 962 states have internal predecessors, (1315), 257 states have call successors, (257), 70 states have call predecessors, (257), 69 states have return successors, (252), 244 states have call predecessors, (252), 252 states have call successors, (252) [2023-11-19 08:04:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 08:04:00,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:00,375 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-19 08:04:00,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:00,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:00,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2008316773, now seen corresponding path program 1 times [2023-11-19 08:04:00,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:00,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880355069] [2023-11-19 08:04:00,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:00,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:04:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:04:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:04:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 08:04:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 08:04:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 08:04:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 08:04:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 08:04:02,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:02,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880355069] [2023-11-19 08:04:02,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880355069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:02,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:02,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:04:02,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492549645] [2023-11-19 08:04:02,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:02,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:04:02,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:02,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:02,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:02,692 INFO L87 Difference]: Start difference. First operand has 1257 states, 929 states have (on average 1.4155005382131325) internal successors, (1315), 962 states have internal predecessors, (1315), 257 states have call successors, (257), 70 states have call predecessors, (257), 69 states have return successors, (252), 244 states have call predecessors, (252), 252 states have call successors, (252) Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 08:04:09,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:09,805 INFO L93 Difference]: Finished difference Result 2902 states and 4392 transitions. [2023-11-19 08:04:09,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:04:09,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2023-11-19 08:04:09,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:09,860 INFO L225 Difference]: With dead ends: 2902 [2023-11-19 08:04:09,861 INFO L226 Difference]: Without dead ends: 1634 [2023-11-19 08:04:09,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:04:09,879 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 2394 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 1276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 3682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1276 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:09,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 2589 Invalid, 3682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1276 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-19 08:04:09,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2023-11-19 08:04:10,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1241. [2023-11-19 08:04:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 920 states have (on average 1.392391304347826) internal successors, (1281), 946 states have internal predecessors, (1281), 252 states have call successors, (252), 69 states have call predecessors, (252), 68 states have return successors, (251), 243 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-19 08:04:10,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1784 transitions. [2023-11-19 08:04:10,075 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1784 transitions. Word has length 101 [2023-11-19 08:04:10,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:10,076 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1784 transitions. [2023-11-19 08:04:10,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 08:04:10,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1784 transitions. [2023-11-19 08:04:10,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 08:04:10,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:10,085 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-19 08:04:10,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:04:10,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:10,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:10,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1189698389, now seen corresponding path program 1 times [2023-11-19 08:04:10,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:10,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161012333] [2023-11-19 08:04:10,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:10,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:04:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:04:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:04:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 08:04:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 08:04:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 08:04:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 08:04:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:11,601 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 08:04:11,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:11,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161012333] [2023-11-19 08:04:11,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161012333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:11,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:11,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:04:11,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613233583] [2023-11-19 08:04:11,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:11,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:04:11,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:11,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:04:11,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:04:11,607 INFO L87 Difference]: Start difference. First operand 1241 states and 1784 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 08:04:18,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:18,932 INFO L93 Difference]: Finished difference Result 1638 states and 2449 transitions. [2023-11-19 08:04:18,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:04:18,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 101 [2023-11-19 08:04:18,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:18,948 INFO L225 Difference]: With dead ends: 1638 [2023-11-19 08:04:18,948 INFO L226 Difference]: Without dead ends: 1635 [2023-11-19 08:04:18,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:04:18,951 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 2392 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 1265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2459 SdHoareTripleChecker+Valid, 3827 SdHoareTripleChecker+Invalid, 5188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1265 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:18,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2459 Valid, 3827 Invalid, 5188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1265 Valid, 3923 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-11-19 08:04:18,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2023-11-19 08:04:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1242. [2023-11-19 08:04:19,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 921 states have (on average 1.3919652551574375) internal successors, (1282), 947 states have internal predecessors, (1282), 252 states have call successors, (252), 69 states have call predecessors, (252), 68 states have return successors, (251), 243 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-19 08:04:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1785 transitions. [2023-11-19 08:04:19,045 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1785 transitions. Word has length 101 [2023-11-19 08:04:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:19,046 INFO L495 AbstractCegarLoop]: Abstraction has 1242 states and 1785 transitions. [2023-11-19 08:04:19,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 08:04:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1785 transitions. [2023-11-19 08:04:19,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 08:04:19,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:19,052 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-19 08:04:19,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:04:19,053 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:19,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash 600900044, now seen corresponding path program 1 times [2023-11-19 08:04:19,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:19,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231425459] [2023-11-19 08:04:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:19,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:04:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:04:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:04:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 08:04:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 08:04:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 08:04:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 08:04:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 08:04:20,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:20,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231425459] [2023-11-19 08:04:20,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231425459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:20,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:20,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:04:20,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083408614] [2023-11-19 08:04:20,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:20,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:04:20,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:20,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:04:20,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:04:20,900 INFO L87 Difference]: Start difference. First operand 1242 states and 1785 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 08:04:26,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 08:04:30,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:30,177 INFO L93 Difference]: Finished difference Result 2867 states and 4248 transitions. [2023-11-19 08:04:30,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:04:30,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 106 [2023-11-19 08:04:30,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:30,193 INFO L225 Difference]: With dead ends: 2867 [2023-11-19 08:04:30,193 INFO L226 Difference]: Without dead ends: 1638 [2023-11-19 08:04:30,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:04:30,201 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 2384 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 3963 mSolverCounterSat, 1250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2450 SdHoareTripleChecker+Valid, 3812 SdHoareTripleChecker+Invalid, 5213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1250 IncrementalHoareTripleChecker+Valid, 3963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:30,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2450 Valid, 3812 Invalid, 5213 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1250 Valid, 3963 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-11-19 08:04:30,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2023-11-19 08:04:30,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1243. [2023-11-19 08:04:30,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 922 states have (on average 1.3915401301518437) internal successors, (1283), 948 states have internal predecessors, (1283), 252 states have call successors, (252), 69 states have call predecessors, (252), 68 states have return successors, (251), 243 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-19 08:04:30,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1786 transitions. [2023-11-19 08:04:30,285 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1786 transitions. Word has length 106 [2023-11-19 08:04:30,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:30,286 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1786 transitions. [2023-11-19 08:04:30,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 08:04:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1786 transitions. [2023-11-19 08:04:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-19 08:04:30,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:30,290 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-19 08:04:30,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:04:30,291 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:30,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:30,292 INFO L85 PathProgramCache]: Analyzing trace with hash -548358952, now seen corresponding path program 1 times [2023-11-19 08:04:30,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:30,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817798700] [2023-11-19 08:04:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:30,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:04:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:04:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:04:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:04:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:04:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 08:04:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 08:04:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 08:04:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-19 08:04:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 08:04:31,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:31,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817798700] [2023-11-19 08:04:31,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817798700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:31,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:31,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:04:31,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685874993] [2023-11-19 08:04:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:31,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:04:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:31,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:04:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:04:31,920 INFO L87 Difference]: Start difference. First operand 1243 states and 1786 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)