./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 68ead1e29a6cc769e9e712c81a52de8a551f5275fff71a8b8c48675aa28de434 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:05:59,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:05:59,539 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-25 00:05:59,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:05:59,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:05:59,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:05:59,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:05:59,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:05:59,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:05:59,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:05:59,606 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:05:59,608 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:05:59,609 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:05:59,614 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:05:59,615 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:05:59,616 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:05:59,616 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:05:59,617 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:05:59,618 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:05:59,618 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:05:59,619 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:05:59,620 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:05:59,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:05:59,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:05:59,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:05:59,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:05:59,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:05:59,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:05:59,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:05:59,625 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:05:59,627 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:05:59,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:05:59,628 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:05:59,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:05:59,628 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:05:59,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:05:59,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:59,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:05:59,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:05:59,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:05:59,631 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:05:59,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:05:59,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:05:59,633 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:05:59,633 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:05:59,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:05:59,634 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68ead1e29a6cc769e9e712c81a52de8a551f5275fff71a8b8c48675aa28de434 [2023-11-25 00:05:59,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:06:00,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:06:00,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:06:00,023 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:06:00,025 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:06:00,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2023-11-25 00:06:03,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:06:04,291 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:06:04,292 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2023-11-25 00:06:04,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/data/ee6e1a970/27b73a1d6d8a461b8dbd040efdc89451/FLAG5450d2566 [2023-11-25 00:06:04,421 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/data/ee6e1a970/27b73a1d6d8a461b8dbd040efdc89451 [2023-11-25 00:06:04,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:06:04,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:06:04,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:04,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:06:04,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:06:04,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:04,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3789c2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04, skipping insertion in model container [2023-11-25 00:06:04,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:04,728 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:06:10,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:10,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:06:10,430 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 %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5691] [2023-11-25 00:06:10,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5732] [2023-11-25 00:06:10,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5735] [2023-11-25 00:06:10,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5738] [2023-11-25 00:06:10,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5741] [2023-11-25 00:06:11,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:11,422 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:11,431 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:06:11,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11 WrapperNode [2023-11-25 00:06:11,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:11,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:11,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:06:11,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:06:11,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:11,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:11,953 INFO L138 Inliner]: procedures = 643, calls = 3986, calls flagged for inlining = 294, calls inlined = 195, statements flattened = 6560 [2023-11-25 00:06:11,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:11,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:06:11,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:06:11,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:06:11,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:11,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:11,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:12,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:12,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:12,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:12,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:12,253 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:12,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:06:12,293 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:06:12,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:06:12,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:06:12,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (1/1) ... [2023-11-25 00:06:12,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:06:12,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:06:12,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:06:12,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f9936c-f9b8-4556-a7bc-52d948096554/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:06:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-25 00:06:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-25 00:06:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2023-11-25 00:06:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2023-11-25 00:06:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-11-25 00:06:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-11-25 00:06:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2023-11-25 00:06:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2023-11-25 00:06:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2023-11-25 00:06:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2023-11-25 00:06:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:06:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:06:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2023-11-25 00:06:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2023-11-25 00:06:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2023-11-25 00:06:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2023-11-25 00:06:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-25 00:06:12,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-25 00:06:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2023-11-25 00:06:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2023-11-25 00:06:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-11-25 00:06:12,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-11-25 00:06:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2023-11-25 00:06:12,402 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2023-11-25 00:06:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-25 00:06:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-25 00:06:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-11-25 00:06:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-11-25 00:06:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-11-25 00:06:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-11-25 00:06:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2023-11-25 00:06:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2023-11-25 00:06:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-25 00:06:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-25 00:06:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:06:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:06:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2023-11-25 00:06:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2023-11-25 00:06:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-25 00:06:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-25 00:06:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2023-11-25 00:06:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2023-11-25 00:06:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:06:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:06:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-11-25 00:06:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-11-25 00:06:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2023-11-25 00:06:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2023-11-25 00:06:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2023-11-25 00:06:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2023-11-25 00:06:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:06:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2023-11-25 00:06:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2023-11-25 00:06:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2023-11-25 00:06:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2023-11-25 00:06:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-11-25 00:06:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-11-25 00:06:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:06:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2023-11-25 00:06:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2023-11-25 00:06:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2023-11-25 00:06:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2023-11-25 00:06:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-25 00:06:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-25 00:06:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:06:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-11-25 00:06:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-11-25 00:06:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:06:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:06:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-25 00:06:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-25 00:06:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:06:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-11-25 00:06:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-11-25 00:06:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:06:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:06:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-11-25 00:06:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-11-25 00:06:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-25 00:06:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-25 00:06:12,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-25 00:06:12,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-25 00:06:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2023-11-25 00:06:12,421 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2023-11-25 00:06:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-11-25 00:06:12,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-11-25 00:06:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-25 00:06:12,422 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-25 00:06:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2023-11-25 00:06:12,422 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2023-11-25 00:06:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-25 00:06:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-25 00:06:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:06:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2023-11-25 00:06:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2023-11-25 00:06:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2023-11-25 00:06:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2023-11-25 00:06:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:06:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:06:12,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:06:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:06:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-25 00:06:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:06:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:06:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-25 00:06:12,427 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-25 00:06:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:06:12,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:06:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2023-11-25 00:06:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2023-11-25 00:06:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2023-11-25 00:06:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2023-11-25 00:06:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2023-11-25 00:06:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2023-11-25 00:06:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2023-11-25 00:06:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2023-11-25 00:06:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-11-25 00:06:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-11-25 00:06:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-25 00:06:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-25 00:06:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-11-25 00:06:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-11-25 00:06:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2023-11-25 00:06:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2023-11-25 00:06:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:06:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:06:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-25 00:06:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-25 00:06:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2023-11-25 00:06:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2023-11-25 00:06:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-25 00:06:12,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-25 00:06:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:06:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:06:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:06:12,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:06:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-25 00:06:12,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-25 00:06:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2023-11-25 00:06:12,436 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2023-11-25 00:06:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-25 00:06:12,438 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-25 00:06:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2023-11-25 00:06:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2023-11-25 00:06:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-25 00:06:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-25 00:06:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2023-11-25 00:06:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2023-11-25 00:06:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2023-11-25 00:06:12,447 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2023-11-25 00:06:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-25 00:06:12,452 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-25 00:06:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-25 00:06:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-25 00:06:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-11-25 00:06:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-11-25 00:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2023-11-25 00:06:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2023-11-25 00:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2023-11-25 00:06:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2023-11-25 00:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-11-25 00:06:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-11-25 00:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-25 00:06:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-25 00:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-25 00:06:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-25 00:06:12,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-11-25 00:06:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-11-25 00:06:12,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2023-11-25 00:06:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2023-11-25 00:06:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-11-25 00:06:12,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-11-25 00:06:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:06:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-25 00:06:12,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-25 00:06:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2023-11-25 00:06:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2023-11-25 00:06:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2023-11-25 00:06:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2023-11-25 00:06:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2023-11-25 00:06:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2023-11-25 00:06:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-25 00:06:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-25 00:06:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:06:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:06:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2023-11-25 00:06:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2023-11-25 00:06:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2023-11-25 00:06:12,460 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2023-11-25 00:06:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-11-25 00:06:12,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-11-25 00:06:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-11-25 00:06:12,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-11-25 00:06:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-25 00:06:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-25 00:06:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2023-11-25 00:06:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2023-11-25 00:06:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-25 00:06:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-25 00:06:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-11-25 00:06:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-11-25 00:06:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-25 00:06:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-25 00:06:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-25 00:06:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-25 00:06:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-11-25 00:06:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-11-25 00:06:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-25 00:06:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-25 00:06:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-25 00:06:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-25 00:06:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:06:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-25 00:06:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-25 00:06:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2023-11-25 00:06:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2023-11-25 00:06:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:06:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:06:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-25 00:06:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-25 00:06:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2023-11-25 00:06:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2023-11-25 00:06:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2023-11-25 00:06:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2023-11-25 00:06:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-25 00:06:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-25 00:06:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:06:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:06:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-25 00:06:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-25 00:06:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-25 00:06:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-25 00:06:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2023-11-25 00:06:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2023-11-25 00:06:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-25 00:06:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-25 00:06:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:06:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-25 00:06:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-25 00:06:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2023-11-25 00:06:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2023-11-25 00:06:13,611 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:06:13,621 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:06:13,855 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:06:21,155 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:06:22,866 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:06:22,867 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-25 00:06:22,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:22 BoogieIcfgContainer [2023-11-25 00:06:22,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:06:22,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:06:22,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:06:22,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:06:22,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:06:04" (1/3) ... [2023-11-25 00:06:22,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a49288d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:22, skipping insertion in model container [2023-11-25 00:06:22,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:11" (2/3) ... [2023-11-25 00:06:22,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a49288d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:22, skipping insertion in model container [2023-11-25 00:06:22,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:22" (3/3) ... [2023-11-25 00:06:22,883 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2023-11-25 00:06:22,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:06:22,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 105 error locations. [2023-11-25 00:06:23,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:06:23,042 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=FINITE_AUTOMATA, 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;@21375fd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:06:23,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2023-11-25 00:06:23,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 1737 states, 1058 states have (on average 1.4120982986767485) internal successors, (1494), 1213 states have internal predecessors, (1494), 461 states have call successors, (461), 113 states have call predecessors, (461), 112 states have return successors, (457), 450 states have call predecessors, (457), 457 states have call successors, (457) [2023-11-25 00:06:23,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2023-11-25 00:06:23,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:23,109 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:23,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting dev_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 102 more)] === [2023-11-25 00:06:23,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:23,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1589727743, now seen corresponding path program 1 times [2023-11-25 00:06:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:23,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645278047] [2023-11-25 00:06:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:23,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4019 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4019 trivial. 0 not checked. [2023-11-25 00:06:25,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:25,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645278047] [2023-11-25 00:06:25,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645278047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:25,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:25,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:06:25,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803360769] [2023-11-25 00:06:25,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:25,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:25,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:25,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:25,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:25,682 INFO L87 Difference]: Start difference. First operand has 1737 states, 1058 states have (on average 1.4120982986767485) internal successors, (1494), 1213 states have internal predecessors, (1494), 461 states have call successors, (461), 113 states have call predecessors, (461), 112 states have return successors, (457), 450 states have call predecessors, (457), 457 states have call successors, (457) Second operand has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-11-25 00:06:30,019 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 [] [2023-11-25 00:06:32,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:36,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:37,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:37,699 INFO L93 Difference]: Finished difference Result 5026 states and 7357 transitions. [2023-11-25 00:06:37,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:37,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 397 [2023-11-25 00:06:37,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:37,750 INFO L225 Difference]: With dead ends: 5026 [2023-11-25 00:06:37,750 INFO L226 Difference]: Without dead ends: 3045 [2023-11-25 00:06:37,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:37,775 INFO L413 NwaCegarLoop]: 3798 mSDtfsCounter, 2292 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 5802 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:37,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2292 Valid, 5802 Invalid, 775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 769 Invalid, 3 Unknown, 0 Unchecked, 11.5s Time] [2023-11-25 00:06:37,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2023-11-25 00:06:38,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 2958. [2023-11-25 00:06:38,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 1942 states have (on average 1.395468589083419) internal successors, (2710), 2066 states have internal predecessors, (2710), 745 states have call successors, (745), 180 states have call predecessors, (745), 180 states have return successors, (789), 731 states have call predecessors, (789), 745 states have call successors, (789) [2023-11-25 00:06:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 4244 transitions. [2023-11-25 00:06:38,120 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 4244 transitions. Word has length 397 [2023-11-25 00:06:38,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:38,123 INFO L495 AbstractCegarLoop]: Abstraction has 2958 states and 4244 transitions. [2023-11-25 00:06:38,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-11-25 00:06:38,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 4244 transitions. [2023-11-25 00:06:38,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-11-25 00:06:38,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:38,199 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:38,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:06:38,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_kernel_module_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 102 more)] === [2023-11-25 00:06:38,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:38,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1371553744, now seen corresponding path program 1 times [2023-11-25 00:06:38,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:38,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619613569] [2023-11-25 00:06:38,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:38,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4019 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4019 trivial. 0 not checked. [2023-11-25 00:06:40,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:40,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619613569] [2023-11-25 00:06:40,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619613569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:40,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:40,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:40,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788812494] [2023-11-25 00:06:40,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:40,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:06:40,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:40,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:06:40,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:06:40,266 INFO L87 Difference]: Start difference. First operand 2958 states and 4244 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-11-25 00:06:48,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []