./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.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_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/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_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/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_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/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 d88455bf5089be24833f69dfcbd91003e7e136bcd5efcd63ae18e59d7f59e87d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:38:43,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:38:43,847 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:38:43,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:38:43,860 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:38:43,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:38:43,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:38:43,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:38:43,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:38:43,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:38:43,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:38:43,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:38:43,913 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:38:43,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:38:43,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:38:43,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:38:43,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:38:43,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:38:43,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:38:43,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:38:43,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:38:43,918 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:38:43,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:38:43,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:38:43,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:38:43,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:43,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:38:43,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:38:43,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:38:43,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:38:43,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:38:43,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:38:43,925 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:38:43,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:38:43,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:38:43,926 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:38:43,926 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_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88455bf5089be24833f69dfcbd91003e7e136bcd5efcd63ae18e59d7f59e87d [2023-11-19 07:38:44,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:38:44,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:38:44,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:38:44,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:38:44,352 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:38:44,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i [2023-11-19 07:38:47,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:38:48,135 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:38:48,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i [2023-11-19 07:38:48,200 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/data/1f6e394f1/66e7772d217441fdb627c0663d7251d7/FLAGc0e41c9ad [2023-11-19 07:38:48,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/data/1f6e394f1/66e7772d217441fdb627c0663d7251d7 [2023-11-19 07:38:48,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:38:48,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:38:48,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:48,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:38:48,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:38:48,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:48" (1/1) ... [2023-11-19 07:38:48,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66fa8e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:48, skipping insertion in model container [2023-11-19 07:38:48,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:48" (1/1) ... [2023-11-19 07:38:48,504 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:38:49,586 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_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i[205251,205264] [2023-11-19 07:38:51,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:51,122 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:38:51,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [7017-7018] [2023-11-19 07:38:51,356 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_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i[205251,205264] [2023-11-19 07:38:51,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:51,791 WARN L675 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:38:51,799 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:38:51,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51 WrapperNode [2023-11-19 07:38:51,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:51,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:51,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:38:51,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:38:51,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:51,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,239 INFO L138 Inliner]: procedures = 239, calls = 3162, calls flagged for inlining = 111, calls inlined = 96, statements flattened = 6029 [2023-11-19 07:38:52,240 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:52,240 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:38:52,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:38:52,241 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:38:52,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:38:52,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:38:52,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:38:52,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:38:52,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (1/1) ... [2023-11-19 07:38:52,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:52,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:52,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:38:52,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a127f0b-b2ba-4ac9-a283-bad55c21cc14/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:38:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure at76_hw_scan [2023-11-19 07:38:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_hw_scan [2023-11-19 07:38:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure at76_dfu_get_status [2023-11-19 07:38:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_dfu_get_status [2023-11-19 07:38:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure at76_join [2023-11-19 07:38:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_join [2023-11-19 07:38:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-19 07:38:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-19 07:38:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:38:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:38:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:38:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:38:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-11-19 07:38:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-11-19 07:38:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure at76_submit_rx_urb [2023-11-19 07:38:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_submit_rx_urb [2023-11-19 07:38:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure at76_add_interface [2023-11-19 07:38:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_add_interface [2023-11-19 07:38:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_timeout [2023-11-19 07:38:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_timeout [2023-11-19 07:38:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:38:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:38:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-19 07:38:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-19 07:38:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure at76_bss_info_changed [2023-11-19 07:38:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_bss_info_changed [2023-11-19 07:38:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-19 07:38:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-19 07:38:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure at76_wait_completion [2023-11-19 07:38:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_wait_completion [2023-11-19 07:38:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:38:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:38:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-19 07:38:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-19 07:38:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:38:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:38:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:38:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:38:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:38:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:38:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:38:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 07:38:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 07:38:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:38:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-11-19 07:38:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-11-19 07:38:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure at76_delete_device [2023-11-19 07:38:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_delete_device [2023-11-19 07:38:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-11-19 07:38:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_mib [2023-11-19 07:38:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_mib [2023-11-19 07:38:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_radio [2023-11-19 07:38:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_radio [2023-11-19 07:38:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:38:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:38:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:38:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:38:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_event [2023-11-19 07:38:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_event [2023-11-19 07:38:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_card_command [2023-11-19 07:38:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_card_command [2023-11-19 07:38:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_cmd_status [2023-11-19 07:38:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_cmd_status [2023-11-19 07:38:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:38:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:38:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-19 07:38:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-19 07:38:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-19 07:38:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-19 07:38:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:38:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:38:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2023-11-19 07:38:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2023-11-19 07:38:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 07:38:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 07:38:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-19 07:38:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-19 07:38:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-19 07:38:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-19 07:38:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_mib [2023-11-19 07:38:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_mib [2023-11-19 07:38:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-19 07:38:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-19 07:38:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:38:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:38:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:38:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:38:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_pm_mode [2023-11-19 07:38:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_pm_mode [2023-11-19 07:38:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 07:38:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 07:38:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_key [2023-11-19 07:38:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_key [2023-11-19 07:38:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure at76_is_505a [2023-11-19 07:38:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_is_505a [2023-11-19 07:38:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:38:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_hw_cfg [2023-11-19 07:38:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_hw_cfg [2023-11-19 07:38:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure at76_config [2023-11-19 07:38:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_config [2023-11-19 07:38:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-19 07:38:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-19 07:38:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:38:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:38:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-11-19 07:38:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-11-19 07:38:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 07:38:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 07:38:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-19 07:38:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-19 07:38:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 07:38:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 07:38:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_op_mode [2023-11-19 07:38:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_op_mode [2023-11-19 07:38:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure at76_remove_interface [2023-11-19 07:38:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_remove_interface [2023-11-19 07:38:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2023-11-19 07:38:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2023-11-19 07:38:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:38:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:38:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:38:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:38:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:38:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_name [2023-11-19 07:38:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_name [2023-11-19 07:38:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-19 07:38:52,745 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-19 07:38:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:38:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure at76_start_monitor [2023-11-19 07:38:52,745 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_start_monitor [2023-11-19 07:38:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2023-11-19 07:38:52,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2023-11-19 07:38:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-19 07:38:52,746 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-19 07:38:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:38:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-19 07:38:52,746 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-19 07:38:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:38:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-19 07:38:52,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-19 07:38:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 07:38:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 07:38:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 07:38:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 07:38:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-19 07:38:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-19 07:38:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure at76_configure_filter [2023-11-19 07:38:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_configure_filter [2023-11-19 07:38:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 07:38:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 07:38:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_work [2023-11-19 07:38:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_work [2023-11-19 07:38:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 07:38:52,751 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 07:38:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:38:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure at76_mac80211_tx [2023-11-19 07:38:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_mac80211_tx [2023-11-19 07:38:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:38:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:38:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2023-11-19 07:38:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2023-11-19 07:38:53,490 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:38:53,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:38:54,148 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:39:05,092 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:05,123 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:05,123 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:39:05,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:05 BoogieIcfgContainer [2023-11-19 07:39:05,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:05,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:05,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:05,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:05,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:48" (1/3) ... [2023-11-19 07:39:05,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2208534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:05, skipping insertion in model container [2023-11-19 07:39:05,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:51" (2/3) ... [2023-11-19 07:39:05,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2208534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:05, skipping insertion in model container [2023-11-19 07:39:05,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:05" (3/3) ... [2023-11-19 07:39:05,152 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i [2023-11-19 07:39:05,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:05,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:39:05,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:05,296 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;@170e3013, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:05,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:39:05,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 1738 states, 1240 states have (on average 1.4112903225806452) internal successors, (1750), 1264 states have internal predecessors, (1750), 425 states have call successors, (425), 72 states have call predecessors, (425), 71 states have return successors, (420), 419 states have call predecessors, (420), 420 states have call successors, (420) [2023-11-19 07:39:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 07:39:05,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:05,345 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:05,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:05,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:05,352 INFO L85 PathProgramCache]: Analyzing trace with hash 944197232, now seen corresponding path program 1 times [2023-11-19 07:39:05,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:05,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265607211] [2023-11-19 07:39:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:05,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:06,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:39:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:06,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:39:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:06,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:39:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:39:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:06,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:39:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:06,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:39:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:06,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:39:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:07,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:39:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:07,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:39:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:39:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:07,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:39:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-19 07:39:07,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:07,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265607211] [2023-11-19 07:39:07,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265607211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:07,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:07,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:39:07,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688402911] [2023-11-19 07:39:07,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:07,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:39:07,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:07,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:39:07,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:07,161 INFO L87 Difference]: Start difference. First operand has 1738 states, 1240 states have (on average 1.4112903225806452) internal successors, (1750), 1264 states have internal predecessors, (1750), 425 states have call successors, (425), 72 states have call predecessors, (425), 71 states have return successors, (420), 419 states have call predecessors, (420), 420 states have call successors, (420) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:39:17,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:39:19,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:39:21,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:39:23,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:39:26,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:39:28,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:39:30,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:39:32,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:39:33,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:33,906 INFO L93 Difference]: Finished difference Result 5497 states and 8568 transitions. [2023-11-19 07:39:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:39:33,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2023-11-19 07:39:33,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:33,961 INFO L225 Difference]: With dead ends: 5497 [2023-11-19 07:39:33,961 INFO L226 Difference]: Without dead ends: 3746 [2023-11-19 07:39:33,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:39:33,981 INFO L413 NwaCegarLoop]: 2167 mSDtfsCounter, 3788 mSDsluCounter, 4212 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 2093 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4166 SdHoareTripleChecker+Valid, 6379 SdHoareTripleChecker+Invalid, 4815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2093 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:33,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4166 Valid, 6379 Invalid, 4815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2093 Valid, 2714 Invalid, 8 Unknown, 0 Unchecked, 26.0s Time] [2023-11-19 07:39:34,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2023-11-19 07:39:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3392. [2023-11-19 07:39:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3392 states, 2429 states have (on average 1.3993412927130506) internal successors, (3399), 2463 states have internal predecessors, (3399), 822 states have call successors, (822), 141 states have call predecessors, (822), 140 states have return successors, (821), 819 states have call predecessors, (821), 821 states have call successors, (821) [2023-11-19 07:39:34,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 5042 transitions. [2023-11-19 07:39:34,345 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 5042 transitions. Word has length 85 [2023-11-19 07:39:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:34,347 INFO L495 AbstractCegarLoop]: Abstraction has 3392 states and 5042 transitions. [2023-11-19 07:39:34,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:39:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 5042 transitions. [2023-11-19 07:39:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:39:34,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:34,359 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:34,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:39:34,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:34,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1482552200, now seen corresponding path program 1 times [2023-11-19 07:39:34,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:34,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336817109] [2023-11-19 07:39:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:34,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:39:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:39:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:39:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:39:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:39:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:39:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:39:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:39:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:39:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:39:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:39:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:39:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:39:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:39:35,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:35,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336817109] [2023-11-19 07:39:35,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336817109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:35,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:35,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:35,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708652373] [2023-11-19 07:39:35,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:35,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:39:35,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:35,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:39:35,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:39:35,868 INFO L87 Difference]: Start difference. First operand 3392 states and 5042 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)