./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/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_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d14c8a5550a448f5c68a45f15ec5a237f47fb2aec22c64bccafbe44b31bb62a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:37:48,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:37:48,760 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:37:48,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:37:48,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:37:48,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:37:48,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:37:48,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:37:48,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:37:48,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:37:48,822 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:37:48,823 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:37:48,824 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:37:48,826 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:37:48,826 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:37:48,827 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:37:48,827 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:37:48,828 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:37:48,828 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:37:48,829 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:37:48,829 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:37:48,830 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:37:48,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:37:48,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:37:48,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:37:48,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:37:48,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:37:48,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:37:48,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:37:48,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:37:48,837 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:37:48,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:37:48,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:37:48,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:37:48,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:48,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:37:48,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:37:48,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:37:48,839 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:37:48,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:37:48,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:37:48,841 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:37:48,841 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:37:48,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:37:48,842 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_c7f45333-aeef-4224-b9e6-6136d1a4468c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d14c8a5550a448f5c68a45f15ec5a237f47fb2aec22c64bccafbe44b31bb62a [2023-11-23 20:37:49,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:37:49,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:37:49,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:37:49,240 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:37:49,241 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:37:49,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i [2023-11-23 20:37:52,406 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:37:53,180 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:37:53,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i [2023-11-23 20:37:53,238 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/data/7dc21369b/fd488691c1be41ddb2cbdf0de2222a56/FLAGeaca8ba8e [2023-11-23 20:37:53,255 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/data/7dc21369b/fd488691c1be41ddb2cbdf0de2222a56 [2023-11-23 20:37:53,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:37:53,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:37:53,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:53,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:37:53,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:37:53,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:53" (1/1) ... [2023-11-23 20:37:53,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36249a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:53, skipping insertion in model container [2023-11-23 20:37:53,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:53" (1/1) ... [2023-11-23 20:37:53,481 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:37:54,125 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4417] [2023-11-23 20:37:56,196 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i[318291,318304] [2023-11-23 20:37:56,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:56,521 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:37:56,624 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4417] [2023-11-23 20:37:56,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [5042-5043] [2023-11-23 20:37:56,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5058] [2023-11-23 20:37:56,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5061] [2023-11-23 20:37:56,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5064] [2023-11-23 20:37:56,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5067] [2023-11-23 20:37:56,947 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"); [8755] [2023-11-23 20:37:56,948 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [8762] [2023-11-23 20:37:57,045 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i[318291,318304] [2023-11-23 20:37:57,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:57,259 WARN L675 CHandler]: The function strcat is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:57,259 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:57,267 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:37:57,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57 WrapperNode [2023-11-23 20:37:57,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:57,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:57,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:37:57,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:37:57,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:57,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,442 INFO L138 Inliner]: procedures = 359, calls = 4237, calls flagged for inlining = 163, calls inlined = 153, statements flattened = 8499 [2023-11-23 20:37:58,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:58,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:37:58,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:37:58,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:37:58,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:59,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:59,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:59,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:59,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:38:00,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:38:00,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:38:00,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:38:00,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:38:00,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:38:00,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:38:00,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:38:00,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:38:00,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f45333-aeef-4224-b9e6-6136d1a4468c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:38:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_change_streaming_alternate [2023-11-23 20:38:00,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_change_streaming_alternate [2023-11-23 20:38:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_stream_pause [2023-11-23 20:38:00,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_stream_pause [2023-11-23 20:38:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure set_vw_size [2023-11-23 20:38:00,118 INFO L138 BoogieDeclarations]: Found implementation of procedure set_vw_size [2023-11-23 20:38:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 20:38:00,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 20:38:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 20:38:00,120 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 20:38:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-23 20:38:00,120 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-23 20:38:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:38:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:38:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:38:00,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:38:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:38:00,122 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:38:00,124 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-23 20:38:00,124 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-23 20:38:00,124 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 20:38:00,124 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 20:38:00,124 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_send_command [2023-11-23 20:38:00,124 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_send_command [2023-11-23 20:38:00,125 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_set_low_power [2023-11-23 20:38:00,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_set_low_power [2023-11-23 20:38:00,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:38:00,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:38:00,126 INFO L130 BoogieDeclarations]: Found specification of procedure set_alternate [2023-11-23 20:38:00,126 INFO L138 BoogieDeclarations]: Found implementation of procedure set_alternate [2023-11-23 20:38:00,126 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-23 20:38:00,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-23 20:38:00,126 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:38:00,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:38:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:38:00,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:38:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:38:00,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:38:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_set_high_power [2023-11-23 20:38:00,127 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_set_high_power [2023-11-23 20:38:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:38:00,127 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:38:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_reset_camera [2023-11-23 20:38:00,128 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_reset_camera [2023-11-23 20:38:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 20:38:00,128 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 20:38:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2023-11-23 20:38:00,129 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2023-11-23 20:38:00,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:38:00,129 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 20:38:00,129 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 20:38:00,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:38:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2023-11-23 20:38:00,131 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2023-11-23 20:38:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2023-11-23 20:38:00,131 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2023-11-23 20:38:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_do_command [2023-11-23 20:38:00,131 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_do_command [2023-11-23 20:38:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 20:38:00,131 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 20:38:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-23 20:38:00,132 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-23 20:38:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2023-11-23 20:38:00,132 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2023-11-23 20:38:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2023-11-23 20:38:00,133 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2023-11-23 20:38:00,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:38:00,133 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-23 20:38:00,133 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-23 20:38:00,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_v4l2_lock_of_camera_data [2023-11-23 20:38:00,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_v4l2_lock_of_camera_data [2023-11-23 20:38:00,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:38:00,133 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:38:00,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:38:00,134 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2023-11-23 20:38:00,134 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:38:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:38:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_disconnect [2023-11-23 20:38:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_disconnect [2023-11-23 20:38:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_try_fmt_vid_cap [2023-11-23 20:38:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_try_fmt_vid_cap [2023-11-23 20:38:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc_to_page [2023-11-23 20:38:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc_to_page [2023-11-23 20:38:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_g_parm [2023-11-23 20:38:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_g_parm [2023-11-23 20:38:00,136 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-23 20:38:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-23 20:38:00,136 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_resume [2023-11-23 20:38:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_resume [2023-11-23 20:38:00,136 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-23 20:38:00,137 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-23 20:38:00,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:38:00,137 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 20:38:00,137 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 20:38:00,137 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2023-11-23 20:38:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2023-11-23 20:38:00,138 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2023-11-23 20:38:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2023-11-23 20:38:00,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:38:00,138 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:38:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:38:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2023-11-23 20:38:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2023-11-23 20:38:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:38:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_stream_stop [2023-11-23 20:38:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_stream_stop [2023-11-23 20:38:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:38:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:38:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 20:38:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 20:38:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-11-23 20:38:00,141 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-11-23 20:38:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:38:00,141 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:38:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_stream_resume [2023-11-23 20:38:00,141 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_stream_resume [2023-11-23 20:38:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:38:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2023-11-23 20:38:00,142 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2023-11-23 20:38:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_v4l2_lock_of_camera_data [2023-11-23 20:38:00,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_v4l2_lock_of_camera_data [2023-11-23 20:38:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:38:00,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:38:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2023-11-23 20:38:00,142 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2023-11-23 20:38:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 20:38:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 20:38:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_v4l2_lock_of_camera_data [2023-11-23 20:38:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_v4l2_lock_of_camera_data [2023-11-23 20:38:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_match_video_size [2023-11-23 20:38:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_match_video_size [2023-11-23 20:38:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-23 20:38:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-23 20:38:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:38:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 20:38:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 20:38:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_send_onebyte_command [2023-11-23 20:38:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_send_onebyte_command [2023-11-23 20:38:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_v4l_poll [2023-11-23 20:38:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_v4l_poll [2023-11-23 20:38:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:38:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure configure_transfer_mode [2023-11-23 20:38:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_transfer_mode [2023-11-23 20:38:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:38:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:38:00,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:38:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:38:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_set_fps [2023-11-23 20:38:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_set_fps [2023-11-23 20:38:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-23 20:38:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-23 20:38:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 20:38:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 20:38:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 20:38:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 20:38:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_is_singular_file [2023-11-23 20:38:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_is_singular_file [2023-11-23 20:38:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_release [2023-11-23 20:38:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_release [2023-11-23 20:38:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_stream_start [2023-11-23 20:38:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_stream_start [2023-11-23 20:38:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 20:38:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 20:38:00,158 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_dbg_dump_registers [2023-11-23 20:38:00,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_dbg_dump_registers [2023-11-23 20:38:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-23 20:38:00,159 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-23 20:38:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:38:00,161 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_mmap [2023-11-23 20:38:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_mmap [2023-11-23 20:38:00,161 INFO L130 BoogieDeclarations]: Found specification of procedure set_all_properties [2023-11-23 20:38:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure set_all_properties [2023-11-23 20:38:00,162 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-23 20:38:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-23 20:38:00,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:38:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:38:01,078 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:38:01,082 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:38:04,099 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:38:30,457 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:38:34,543 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:38:34,543 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:38:34,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:34 BoogieIcfgContainer [2023-11-23 20:38:34,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:38:34,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:38:34,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:38:34,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:38:34,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:37:53" (1/3) ... [2023-11-23 20:38:34,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a92078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:34, skipping insertion in model container [2023-11-23 20:38:34,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (2/3) ... [2023-11-23 20:38:34,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a92078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:34, skipping insertion in model container [2023-11-23 20:38:34,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:34" (3/3) ... [2023-11-23 20:38:34,556 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i [2023-11-23 20:38:34,578 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:38:34,578 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:38:34,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:38:34,683 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;@1b5c8d4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:38:34,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:38:34,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 1461 states, 946 states have (on average 1.3742071881606766) internal successors, (1300), 967 states have internal predecessors, (1300), 435 states have call successors, (435), 79 states have call predecessors, (435), 78 states have return successors, (428), 428 states have call predecessors, (428), 428 states have call successors, (428) [2023-11-23 20:38:34,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2023-11-23 20:38:34,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:34,734 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 37, 37, 37, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:38:34,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:34,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash -29582575, now seen corresponding path program 1 times [2023-11-23 20:38:34,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:34,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303992587] [2023-11-23 20:38:34,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:34,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:37,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6767 trivial. 0 not checked. [2023-11-23 20:38:37,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:37,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303992587] [2023-11-23 20:38:37,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303992587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:37,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:37,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:37,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145687101] [2023-11-23 20:38:37,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:37,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:37,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:37,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:37,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:37,224 INFO L87 Difference]: Start difference. First operand has 1461 states, 946 states have (on average 1.3742071881606766) internal successors, (1300), 967 states have internal predecessors, (1300), 435 states have call successors, (435), 79 states have call predecessors, (435), 78 states have return successors, (428), 428 states have call predecessors, (428), 428 states have call successors, (428) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)