./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/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_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ --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-9bd2c7f [2023-11-19 05:11:35,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:11:35,676 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 05:11:35,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:11:35,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:11:35,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:11:35,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:11:35,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:11:35,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:11:35,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:11:35,715 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:11:35,716 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:11:35,716 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:11:35,717 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:11:35,718 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:11:35,718 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:11:35,719 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:11:35,720 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:11:35,721 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:11:35,721 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:11:35,722 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:11:35,723 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:11:35,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:11:35,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:11:35,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:11:35,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:11:35,727 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:11:35,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:11:35,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:11:35,729 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:11:35,729 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:11:35,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:11:35,731 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:11:35,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:11:35,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:11:35,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:11:35,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:11:35,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:11:35,734 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:11:35,735 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:11:35,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:11:35,736 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:11:35,736 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:11:35,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:11:35,738 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_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68ead1e29a6cc769e9e712c81a52de8a551f5275fff71a8b8c48675aa28de434 [2023-11-19 05:11:36,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:11:36,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:11:36,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:11:36,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:11:36,146 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:11:36,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2023-11-19 05:11:39,438 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:11:40,241 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:11:40,242 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2023-11-19 05:11:40,328 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/data/51920b20d/0a26ee8226cd495c8adb061dd28834f0/FLAG8d0256363 [2023-11-19 05:11:40,349 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/data/51920b20d/0a26ee8226cd495c8adb061dd28834f0 [2023-11-19 05:11:40,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:11:40,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:11:40,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:11:40,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:11:40,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:11:40,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:40" (1/1) ... [2023-11-19 05:11:40,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac96980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:40, skipping insertion in model container [2023-11-19 05:11:40,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:40" (1/1) ... [2023-11-19 05:11:40,620 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:11:45,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:11:45,673 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:11:45,838 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] [2023-11-19 05:11:45,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5732] [2023-11-19 05:11:45,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5735] [2023-11-19 05:11:45,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5738] [2023-11-19 05:11:45,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5741] [2023-11-19 05:11:46,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:11:46,784 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:11:46,792 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:11:46,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46 WrapperNode [2023-11-19 05:11:46,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:11:46,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:11:46,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:11:46,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:11:46,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:46,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,341 INFO L138 Inliner]: procedures = 643, calls = 3986, calls flagged for inlining = 294, calls inlined = 195, statements flattened = 6436 [2023-11-19 05:11:47,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:11:47,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:11:47,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:11:47,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:11:47,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:11:47,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:11:47,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:11:47,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:11:47,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (1/1) ... [2023-11-19 05:11:47,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:11:47,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:11:47,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:11:47,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78449632-cfd2-4ff8-bad4-cc76340597fe/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:11:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-19 05:11:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-19 05:11:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2023-11-19 05:11:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2023-11-19 05:11:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-11-19 05:11:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-11-19 05:11:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2023-11-19 05:11:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2023-11-19 05:11:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2023-11-19 05:11:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2023-11-19 05:11:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:11:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:11:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2023-11-19 05:11:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2023-11-19 05:11:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2023-11-19 05:11:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2023-11-19 05:11:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-19 05:11:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-19 05:11:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2023-11-19 05:11:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2023-11-19 05:11:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-11-19 05:11:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-11-19 05:11:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2023-11-19 05:11:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2023-11-19 05:11:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-19 05:11:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-19 05:11:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-11-19 05:11:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-11-19 05:11:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-11-19 05:11:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-11-19 05:11:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2023-11-19 05:11:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2023-11-19 05:11:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-19 05:11:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-19 05:11:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:11:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:11:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2023-11-19 05:11:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2023-11-19 05:11:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:11:47,798 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:11:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2023-11-19 05:11:47,798 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2023-11-19 05:11:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:11:47,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:11:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-11-19 05:11:47,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-11-19 05:11:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2023-11-19 05:11:47,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2023-11-19 05:11:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2023-11-19 05:11:47,799 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2023-11-19 05:11:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:11:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2023-11-19 05:11:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2023-11-19 05:11:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2023-11-19 05:11:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2023-11-19 05:11:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-11-19 05:11:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-11-19 05:11:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:11:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2023-11-19 05:11:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2023-11-19 05:11:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2023-11-19 05:11:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2023-11-19 05:11:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 05:11:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 05:11:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:11:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-11-19 05:11:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-11-19 05:11:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:11:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:11:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-19 05:11:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-19 05:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-11-19 05:11:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-11-19 05:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:11:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:11:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-11-19 05:11:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-11-19 05:11:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 05:11:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 05:11:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:11:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:11:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2023-11-19 05:11:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2023-11-19 05:11:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-11-19 05:11:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-11-19 05:11:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 05:11:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 05:11:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2023-11-19 05:11:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2023-11-19 05:11:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-19 05:11:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-19 05:11:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:11:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2023-11-19 05:11:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2023-11-19 05:11:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2023-11-19 05:11:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2023-11-19 05:11:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:11:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:11:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:11:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:11:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:11:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:11:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:11:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-19 05:11:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-19 05:11:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:11:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:11:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2023-11-19 05:11:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2023-11-19 05:11:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2023-11-19 05:11:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2023-11-19 05:11:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2023-11-19 05:11:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2023-11-19 05:11:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2023-11-19 05:11:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2023-11-19 05:11:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-11-19 05:11:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-11-19 05:11:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-19 05:11:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-19 05:11:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-11-19 05:11:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-11-19 05:11:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2023-11-19 05:11:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2023-11-19 05:11:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:11:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:11:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 05:11:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 05:11:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2023-11-19 05:11:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2023-11-19 05:11:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-19 05:11:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-19 05:11:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:11:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:11:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:11:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:11:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-19 05:11:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-19 05:11:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2023-11-19 05:11:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2023-11-19 05:11:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 05:11:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 05:11:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2023-11-19 05:11:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2023-11-19 05:11:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-19 05:11:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-19 05:11:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2023-11-19 05:11:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2023-11-19 05:11:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2023-11-19 05:11:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2023-11-19 05:11:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 05:11:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 05:11:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:11:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:11:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-11-19 05:11:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-11-19 05:11:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2023-11-19 05:11:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2023-11-19 05:11:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2023-11-19 05:11:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2023-11-19 05:11:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-11-19 05:11:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-11-19 05:11:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:11:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-19 05:11:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-19 05:11:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:11:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 05:11:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 05:11:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-11-19 05:11:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-11-19 05:11:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2023-11-19 05:11:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2023-11-19 05:11:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-11-19 05:11:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-11-19 05:11:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:11:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:11:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:11:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2023-11-19 05:11:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2023-11-19 05:11:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2023-11-19 05:11:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2023-11-19 05:11:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2023-11-19 05:11:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2023-11-19 05:11:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-19 05:11:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-19 05:11:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:11:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:11:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2023-11-19 05:11:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2023-11-19 05:11:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2023-11-19 05:11:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2023-11-19 05:11:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-11-19 05:11:47,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-11-19 05:11:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-11-19 05:11:47,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-11-19 05:11:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-19 05:11:47,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-19 05:11:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2023-11-19 05:11:47,840 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2023-11-19 05:11:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-19 05:11:47,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-19 05:11:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-11-19 05:11:47,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-11-19 05:11:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 05:11:47,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 05:11:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-19 05:11:47,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-19 05:11:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-11-19 05:11:47,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-11-19 05:11:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:11:47,842 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:11:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-19 05:11:47,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-19 05:11:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:11:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-19 05:11:47,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-19 05:11:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2023-11-19 05:11:47,843 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2023-11-19 05:11:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:11:47,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:11:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-19 05:11:47,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-19 05:11:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2023-11-19 05:11:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2023-11-19 05:11:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2023-11-19 05:11:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2023-11-19 05:11:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 05:11:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 05:11:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:11:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:11:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-19 05:11:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-19 05:11:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 05:11:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 05:11:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2023-11-19 05:11:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2023-11-19 05:11:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 05:11:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 05:11:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:11:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-19 05:11:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-19 05:11:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2023-11-19 05:11:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2023-11-19 05:11:48,789 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:11:48,794 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:11:49,023 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:11:56,383 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:11:58,416 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:11:58,417 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:11:58,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:11:58 BoogieIcfgContainer [2023-11-19 05:11:58,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:11:58,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:11:58,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:11:58,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:11:58,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:11:40" (1/3) ... [2023-11-19 05:11:58,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67129a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:11:58, skipping insertion in model container [2023-11-19 05:11:58,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:46" (2/3) ... [2023-11-19 05:11:58,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67129a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:11:58, skipping insertion in model container [2023-11-19 05:11:58,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:11:58" (3/3) ... [2023-11-19 05:11:58,448 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2023-11-19 05:11:58,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:11:58,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 105 error locations. [2023-11-19 05:11:58,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:11:58,608 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;@288fe533, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:11:58,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2023-11-19 05:11:58,623 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) [2023-11-19 05:11:58,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2023-11-19 05:11:58,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:11:58,658 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] [2023-11-19 05:11:58,659 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)] === [2023-11-19 05:11:58,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:11:58,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1072802370, now seen corresponding path program 1 times [2023-11-19 05:11:58,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:11:58,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199236388] [2023-11-19 05:11:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:11:58,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:11:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:01,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4019 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4019 trivial. 0 not checked. [2023-11-19 05:12:01,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:01,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199236388] [2023-11-19 05:12:01,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199236388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:01,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:01,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:12:01,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019756655] [2023-11-19 05:12:01,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:01,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:01,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:01,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:01,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:01,296 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) [2023-11-19 05:12:03,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:06,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:08,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:11,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:12,846 INFO L93 Difference]: Finished difference Result 5023 states and 7354 transitions. [2023-11-19 05:12:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:12,848 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 [2023-11-19 05:12:12,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:12,891 INFO L225 Difference]: With dead ends: 5023 [2023-11-19 05:12:12,891 INFO L226 Difference]: Without dead ends: 3043 [2023-11-19 05:12:12,911 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 [2023-11-19 05:12:12,914 INFO L413 NwaCegarLoop]: 3795 mSDtfsCounter, 2291 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s 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, 11.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:12,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2291 Valid, 5798 Invalid, 775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 769 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2023-11-19 05:12:12,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2023-11-19 05:12:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2956. [2023-11-19 05:12:13,166 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) [2023-11-19 05:12:13,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 4242 transitions. [2023-11-19 05:12:13,211 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 4242 transitions. Word has length 397 [2023-11-19 05:12:13,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:13,214 INFO L495 AbstractCegarLoop]: Abstraction has 2956 states and 4242 transitions. [2023-11-19 05:12:13,215 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) [2023-11-19 05:12:13,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 4242 transitions. [2023-11-19 05:12:13,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-11-19 05:12:13,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:13,228 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] [2023-11-19 05:12:13,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:12:13,229 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)] === [2023-11-19 05:12:13,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:13,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1517328365, now seen corresponding path program 1 times [2023-11-19 05:12:13,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:13,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452315968] [2023-11-19 05:12:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:13,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4019 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4019 trivial. 0 not checked. [2023-11-19 05:12:15,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:15,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452315968] [2023-11-19 05:12:15,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452315968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:15,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:15,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:15,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811716961] [2023-11-19 05:12:15,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:15,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:15,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:15,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:15,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:15,123 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) [2023-11-19 05:12:22,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:24,649 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 []