./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 30e01a73 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_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/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_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire --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 0.2.3-dev-30e01a7 [2023-11-23 21:08:41,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:41,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:08:41,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:41,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:41,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:41,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:41,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:41,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:41,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:41,450 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:41,451 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:41,451 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:41,453 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:08:41,453 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:41,454 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:41,454 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:08:41,455 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:08:41,455 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:41,456 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:08:41,456 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:08:41,457 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:08:41,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:41,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:41,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:08:41,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:41,460 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:41,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:41,461 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:41,462 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:08:41,462 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:08:41,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:41,464 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:41,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:41,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:41,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:41,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:41,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:41,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:41,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:41,467 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:08:41,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:08:41,468 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:41,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:41,469 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:41,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:41,469 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_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68ead1e29a6cc769e9e712c81a52de8a551f5275fff71a8b8c48675aa28de434 [2023-11-23 21:08:41,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:41,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:41,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:41,813 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:41,815 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:41,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2023-11-23 21:08:44,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:45,659 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:45,663 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2023-11-23 21:08:45,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/data/2a07d2747/636d984fa00744c4a1d6ec69e6ce8d31/FLAG38a00a436 [2023-11-23 21:08:45,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/data/2a07d2747/636d984fa00744c4a1d6ec69e6ce8d31 [2023-11-23 21:08:45,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:45,741 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:45,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:45,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:45,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:45,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:45" (1/1) ... [2023-11-23 21:08:45,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735d8e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:45, skipping insertion in model container [2023-11-23 21:08:45,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:45" (1/1) ... [2023-11-23 21:08:45,942 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:50,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:50,976 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:51,203 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] [2023-11-23 21:08:51,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5732] [2023-11-23 21:08:51,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5735] [2023-11-23 21:08:51,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5738] [2023-11-23 21:08:51,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5741] [2023-11-23 21:08:51,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:52,159 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:08:52,167 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:52,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52 WrapperNode [2023-11-23 21:08:52,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:52,169 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:52,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:52,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:52,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,635 INFO L138 Inliner]: procedures = 643, calls = 3986, calls flagged for inlining = 294, calls inlined = 195, statements flattened = 6436 [2023-11-23 21:08:52,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:52,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:52,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:52,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:52,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:52,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:52,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:52,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:52,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (1/1) ... [2023-11-23 21:08:52,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:52,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:52,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:53,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d9d921-9b06-45d1-ac80-10ce8c794953/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-23 21:08:53,045 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-23 21:08:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2023-11-23 21:08:53,045 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2023-11-23 21:08:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-11-23 21:08:53,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-11-23 21:08:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2023-11-23 21:08:53,046 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2023-11-23 21:08:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2023-11-23 21:08:53,047 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2023-11-23 21:08:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:08:53,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:08:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2023-11-23 21:08:53,048 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2023-11-23 21:08:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2023-11-23 21:08:53,049 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2023-11-23 21:08:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-23 21:08:53,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-23 21:08:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2023-11-23 21:08:53,051 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2023-11-23 21:08:53,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-11-23 21:08:53,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-11-23 21:08:53,052 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2023-11-23 21:08:53,052 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2023-11-23 21:08:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-23 21:08:53,053 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-23 21:08:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-11-23 21:08:53,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-11-23 21:08:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-11-23 21:08:53,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-11-23 21:08:53,055 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2023-11-23 21:08:53,055 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2023-11-23 21:08:53,055 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-23 21:08:53,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-23 21:08:53,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:08:53,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:08:53,056 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2023-11-23 21:08:53,056 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2023-11-23 21:08:53,056 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:08:53,056 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:08:53,056 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2023-11-23 21:08:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2023-11-23 21:08:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:08:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:08:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-11-23 21:08:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-11-23 21:08:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2023-11-23 21:08:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2023-11-23 21:08:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2023-11-23 21:08:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2023-11-23 21:08:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:08:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2023-11-23 21:08:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2023-11-23 21:08:53,059 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2023-11-23 21:08:53,059 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2023-11-23 21:08:53,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-11-23 21:08:53,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-11-23 21:08:53,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:08:53,061 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2023-11-23 21:08:53,062 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2023-11-23 21:08:53,062 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2023-11-23 21:08:53,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2023-11-23 21:08:53,062 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 21:08:53,062 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 21:08:53,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:08:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-11-23 21:08:53,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-11-23 21:08:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:08:53,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:08:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-23 21:08:53,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-23 21:08:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:08:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-11-23 21:08:53,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-11-23 21:08:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:08:53,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:08:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-11-23 21:08:53,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-11-23 21:08:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 21:08:53,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 21:08:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:08:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:08:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2023-11-23 21:08:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2023-11-23 21:08:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-11-23 21:08:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-11-23 21:08:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:08:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:08:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2023-11-23 21:08:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2023-11-23 21:08:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-23 21:08:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-23 21:08:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:08:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2023-11-23 21:08:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2023-11-23 21:08:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2023-11-23 21:08:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2023-11-23 21:08:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:08:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:08:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:08:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:08:53,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:08:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:08:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-23 21:08:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-23 21:08:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:08:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:08:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2023-11-23 21:08:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2023-11-23 21:08:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2023-11-23 21:08:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2023-11-23 21:08:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2023-11-23 21:08:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2023-11-23 21:08:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2023-11-23 21:08:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2023-11-23 21:08:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-11-23 21:08:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-11-23 21:08:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-23 21:08:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-23 21:08:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-11-23 21:08:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-11-23 21:08:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2023-11-23 21:08:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2023-11-23 21:08:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-23 21:08:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-23 21:08:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2023-11-23 21:08:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2023-11-23 21:08:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 21:08:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 21:08:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:08:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:08:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:08:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:08:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-23 21:08:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-23 21:08:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2023-11-23 21:08:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2023-11-23 21:08:53,079 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:08:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:08:53,083 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2023-11-23 21:08:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2023-11-23 21:08:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-23 21:08:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-23 21:08:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2023-11-23 21:08:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2023-11-23 21:08:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2023-11-23 21:08:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2023-11-23 21:08:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 21:08:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 21:08:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:08:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:08:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-11-23 21:08:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-11-23 21:08:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2023-11-23 21:08:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2023-11-23 21:08:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2023-11-23 21:08:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2023-11-23 21:08:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-11-23 21:08:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-11-23 21:08:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:08:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-23 21:08:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-23 21:08:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:08:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:08:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:08:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-11-23 21:08:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-11-23 21:08:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2023-11-23 21:08:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2023-11-23 21:08:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-11-23 21:08:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-11-23 21:08:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:08:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:08:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:08:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2023-11-23 21:08:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2023-11-23 21:08:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2023-11-23 21:08:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2023-11-23 21:08:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2023-11-23 21:08:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2023-11-23 21:08:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-23 21:08:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-23 21:08:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:08:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:08:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2023-11-23 21:08:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2023-11-23 21:08:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2023-11-23 21:08:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2023-11-23 21:08:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-11-23 21:08:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-11-23 21:08:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-11-23 21:08:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-11-23 21:08:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-23 21:08:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-23 21:08:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2023-11-23 21:08:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2023-11-23 21:08:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-23 21:08:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-23 21:08:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-11-23 21:08:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-11-23 21:08:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 21:08:53,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 21:08:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-23 21:08:53,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-23 21:08:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-11-23 21:08:53,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-11-23 21:08:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:08:53,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:08:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-23 21:08:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-23 21:08:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:08:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-23 21:08:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-23 21:08:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2023-11-23 21:08:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2023-11-23 21:08:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:08:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:08:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-23 21:08:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-23 21:08:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2023-11-23 21:08:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2023-11-23 21:08:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2023-11-23 21:08:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2023-11-23 21:08:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:08:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:08:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:08:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:08:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-23 21:08:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-23 21:08:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:08:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:08:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2023-11-23 21:08:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2023-11-23 21:08:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:08:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:08:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:08:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:08:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:08:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2023-11-23 21:08:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2023-11-23 21:08:54,043 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:54,051 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:54,336 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:09:00,168 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:01,790 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:01,790 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:09:01,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:01 BoogieIcfgContainer [2023-11-23 21:09:01,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:01,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:01,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:01,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:01,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:45" (1/3) ... [2023-11-23 21:09:01,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a299076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:01, skipping insertion in model container [2023-11-23 21:09:01,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:52" (2/3) ... [2023-11-23 21:09:01,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a299076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:01, skipping insertion in model container [2023-11-23 21:09:01,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:01" (3/3) ... [2023-11-23 21:09:01,802 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2023-11-23 21:09:01,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:01,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 105 error locations. [2023-11-23 21:09:01,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:01,918 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;@1b9785b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:01,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2023-11-23 21:09:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 1736 states, 1057 states have (on average 1.412488174077578) internal successors, (1493), 1212 states have internal predecessors, (1493), 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) [2023-11-23 21:09:01,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2023-11-23 21:09:01,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:01,984 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] [2023-11-23 21:09:01,988 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)] === [2023-11-23 21:09:01,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash -808405217, now seen corresponding path program 1 times [2023-11-23 21:09:02,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:02,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432699022] [2023-11-23 21:09:02,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:02,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4019 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4019 trivial. 0 not checked. [2023-11-23 21:09:04,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:04,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432699022] [2023-11-23 21:09:04,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432699022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:04,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:04,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:09:04,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072919931] [2023-11-23 21:09:04,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:04,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:04,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:04,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:04,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:04,510 INFO L87 Difference]: Start difference. First operand has 1736 states, 1057 states have (on average 1.412488174077578) internal successors, (1493), 1212 states have internal predecessors, (1493), 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) [2023-11-23 21:09:08,715 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 [] [2023-11-23 21:09:10,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:09:14,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:09:14,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:14,998 INFO L93 Difference]: Finished difference Result 5023 states and 7354 transitions. [2023-11-23 21:09:14,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:15,001 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 [2023-11-23 21:09:15,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:15,050 INFO L225 Difference]: With dead ends: 5023 [2023-11-23 21:09:15,051 INFO L226 Difference]: Without dead ends: 3043 [2023-11-23 21:09:15,071 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 [2023-11-23 21:09:15,075 INFO L413 NwaCegarLoop]: 3795 mSDtfsCounter, 2291 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2291 SdHoareTripleChecker+Valid, 5798 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:15,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2291 Valid, 5798 Invalid, 775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 769 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2023-11-23 21:09:15,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2023-11-23 21:09:15,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2956. [2023-11-23 21:09:15,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 1940 states have (on average 1.3958762886597937) internal successors, (2708), 2064 states have internal predecessors, (2708), 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) [2023-11-23 21:09:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 4242 transitions. [2023-11-23 21:09:15,511 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 4242 transitions. Word has length 397 [2023-11-23 21:09:15,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:15,514 INFO L495 AbstractCegarLoop]: Abstraction has 2956 states and 4242 transitions. [2023-11-23 21:09:15,515 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) [2023-11-23 21:09:15,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 4242 transitions. [2023-11-23 21:09:15,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-11-23 21:09:15,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:15,527 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] [2023-11-23 21:09:15,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:09:15,528 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)] === [2023-11-23 21:09:15,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:15,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1204767438, now seen corresponding path program 1 times [2023-11-23 21:09:15,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:15,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389059376] [2023-11-23 21:09:15,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:15,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4019 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4019 trivial. 0 not checked. [2023-11-23 21:09:17,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:17,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389059376] [2023-11-23 21:09:17,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389059376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:17,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:17,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:17,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487669949] [2023-11-23 21:09:17,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:17,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:09:17,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:17,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:09:17,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:09:17,637 INFO L87 Difference]: Start difference. First operand 2956 states and 4242 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) [2023-11-23 21:09:24,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:09:27,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:09:29,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:09:31,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:09:33,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []