./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-43_2a-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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/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_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/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_c6291d92-7ebf-4af5-ae86-362cddf92368/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 c5f620f8f64e85902bfcee16ed337cdb7c2b8705ba4f69a4e3c65d7455f9a0f3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:19,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:19,946 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:16:19,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:19,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:20,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:20,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:20,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:20,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:20,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:20,036 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:20,038 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:20,039 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:20,041 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:20,042 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:20,042 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:20,043 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:20,044 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:20,045 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:20,045 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:20,046 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:20,047 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:20,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:20,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:20,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:20,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:20,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:20,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:20,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:20,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:20,054 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:20,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:20,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:20,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:20,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:20,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:20,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:20,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:20,058 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:20,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:20,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:20,059 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:20,059 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:20,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:20,060 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_c6291d92-7ebf-4af5-ae86-362cddf92368/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5f620f8f64e85902bfcee16ed337cdb7c2b8705ba4f69a4e3c65d7455f9a0f3 [2023-11-23 21:16:20,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:20,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:20,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:20,539 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:20,540 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:20,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i [2023-11-23 21:16:24,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:25,139 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:25,139 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i [2023-11-23 21:16:25,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/data/4e5b2b208/c51d8e0ca76146e1b9748df4d6dda9cb/FLAG369b53789 [2023-11-23 21:16:25,214 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/data/4e5b2b208/c51d8e0ca76146e1b9748df4d6dda9cb [2023-11-23 21:16:25,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:25,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:25,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:25,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:25,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:25,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:25,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f612060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25, skipping insertion in model container [2023-11-23 21:16:25,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:25,424 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:26,163 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4425] [2023-11-23 21:16:28,172 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_c6291d92-7ebf-4af5-ae86-362cddf92368/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i[307018,307031] [2023-11-23 21:16:28,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:28,343 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:28,474 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4425] [2023-11-23 21:16:28,487 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)); [5047-5048] [2023-11-23 21:16:28,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5162] [2023-11-23 21:16:28,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5165] [2023-11-23 21:16:28,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5168] [2023-11-23 21:16:28,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5171] [2023-11-23 21:16:28,785 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"); [8403] [2023-11-23 21:16:28,786 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)); [8410] [2023-11-23 21:16:28,923 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_c6291d92-7ebf-4af5-ae86-362cddf92368/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i[307018,307031] [2023-11-23 21:16:28,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:29,033 WARN L675 CHandler]: The function strcat is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:29,034 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:29,042 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:29,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29 WrapperNode [2023-11-23 21:16:29,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:29,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:29,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:29,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:29,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:29,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:30,356 INFO L138 Inliner]: procedures = 259, calls = 4056, calls flagged for inlining = 140, calls inlined = 131, statements flattened = 8320 [2023-11-23 21:16:30,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:30,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:30,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:30,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:30,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:30,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:31,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:31,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:32,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:32,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:32,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:32,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:32,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:32,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:32,592 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:32,592 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:32,593 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (1/1) ... [2023-11-23 21:16:32,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:32,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:32,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:32,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6291d92-7ebf-4af5-ae86-362cddf92368/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_change_streaming_alternate [2023-11-23 21:16:32,678 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_change_streaming_alternate [2023-11-23 21:16:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_stream_pause [2023-11-23 21:16:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_stream_pause [2023-11-23 21:16:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure set_vw_size [2023-11-23 21:16:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure set_vw_size [2023-11-23 21:16:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 21:16:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 21:16:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 21:16:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 21:16:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:16:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:16:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:16:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:16:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:16:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:16:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-23 21:16:32,685 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-23 21:16:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:16:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:16:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_send_command [2023-11-23 21:16:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_send_command [2023-11-23 21:16:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_set_low_power [2023-11-23 21:16:32,688 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_set_low_power [2023-11-23 21:16:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:16:32,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:16:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure set_alternate [2023-11-23 21:16:32,689 INFO L138 BoogieDeclarations]: Found implementation of procedure set_alternate [2023-11-23 21:16:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-23 21:16:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-23 21:16:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-23 21:16:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-23 21:16:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:16:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:16:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:16:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:16:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:16:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:16:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_set_high_power [2023-11-23 21:16:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_set_high_power [2023-11-23 21:16:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_reset_camera [2023-11-23 21:16:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_reset_camera [2023-11-23 21:16:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2023-11-23 21:16:32,694 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2023-11-23 21:16:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:16:32,694 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:16:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:16:32,695 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2023-11-23 21:16:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2023-11-23 21:16:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2023-11-23 21:16:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2023-11-23 21:16:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_do_command [2023-11-23 21:16:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_do_command [2023-11-23 21:16:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:16:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:16:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2023-11-23 21:16:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2023-11-23 21:16:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2023-11-23 21:16:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2023-11-23 21:16:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-23 21:16:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-23 21:16:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:16:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:16:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:16:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2023-11-23 21:16:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:16:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:16:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_disconnect [2023-11-23 21:16:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_disconnect [2023-11-23 21:16:32,702 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_try_fmt_vid_cap [2023-11-23 21:16:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_try_fmt_vid_cap [2023-11-23 21:16:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc_to_page [2023-11-23 21:16:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc_to_page [2023-11-23 21:16:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_g_parm [2023-11-23 21:16:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_g_parm [2023-11-23 21:16:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:16:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:16:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-23 21:16:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-23 21:16:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_resume [2023-11-23 21:16:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_resume [2023-11-23 21:16:32,706 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-23 21:16:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-23 21:16:32,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:16:32,706 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 21:16:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 21:16:32,707 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2023-11-23 21:16:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2023-11-23 21:16:32,707 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2023-11-23 21:16:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2023-11-23 21:16:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:16:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:16:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:16:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2023-11-23 21:16:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2023-11-23 21:16:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:32,710 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_stream_stop [2023-11-23 21:16:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_stream_stop [2023-11-23 21:16:32,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:16:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:16:32,710 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 21:16:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 21:16:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:16:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:16:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-11-23 21:16:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-11-23 21:16:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:16:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:16:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_stream_resume [2023-11-23 21:16:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_stream_resume [2023-11-23 21:16:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2023-11-23 21:16:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2023-11-23 21:16:32,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:16:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:16:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2023-11-23 21:16:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2023-11-23 21:16:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:16:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:16:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_match_video_size [2023-11-23 21:16:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_match_video_size [2023-11-23 21:16:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-23 21:16:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-23 21:16:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:16:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:16:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_send_onebyte_command [2023-11-23 21:16:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_send_onebyte_command [2023-11-23 21:16:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_v4l_poll [2023-11-23 21:16:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_v4l_poll [2023-11-23 21:16:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure configure_transfer_mode [2023-11-23 21:16:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_transfer_mode [2023-11-23 21:16:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:16:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:16:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_set_fps [2023-11-23 21:16:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_set_fps [2023-11-23 21:16:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-23 21:16:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-23 21:16:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:16:32,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:16:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 21:16:32,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 21:16:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_is_singular_file [2023-11-23 21:16:32,736 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_is_singular_file [2023-11-23 21:16:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_release [2023-11-23 21:16:32,736 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_release [2023-11-23 21:16:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_usb_stream_start [2023-11-23 21:16:32,737 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_usb_stream_start [2023-11-23 21:16:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:16:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:16:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_dbg_dump_registers [2023-11-23 21:16:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_dbg_dump_registers [2023-11-23 21:16:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-23 21:16:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-23 21:16:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure cpia2_mmap [2023-11-23 21:16:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure cpia2_mmap [2023-11-23 21:16:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure set_all_properties [2023-11-23 21:16:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure set_all_properties [2023-11-23 21:16:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-23 21:16:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-23 21:16:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:33,802 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:33,806 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:36,843 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:17:03,955 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:17:07,952 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:17:07,952 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:17:07,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:07 BoogieIcfgContainer [2023-11-23 21:17:07,958 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:17:07,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:17:07,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:17:07,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:17:07,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:25" (1/3) ... [2023-11-23 21:17:07,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dee345f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:07, skipping insertion in model container [2023-11-23 21:17:07,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:29" (2/3) ... [2023-11-23 21:17:07,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dee345f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:07, skipping insertion in model container [2023-11-23 21:17:07,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:07" (3/3) ... [2023-11-23 21:17:07,971 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--media--usb--cpia2--cpia2.ko-entry_point.cil.out.i [2023-11-23 21:17:07,997 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:17:07,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:17:08,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:17:08,125 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;@16440018, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:17:08,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:17:08,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 1401 states, 917 states have (on average 1.3794983642311887) internal successors, (1265), 932 states have internal predecessors, (1265), 408 states have call successors, (408), 75 states have call predecessors, (408), 74 states have return successors, (401), 401 states have call predecessors, (401), 401 states have call successors, (401) [2023-11-23 21:17:08,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2023-11-23 21:17:08,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:08,233 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:08,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:08,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:08,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1434786895, now seen corresponding path program 1 times [2023-11-23 21:17:08,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:08,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935228474] [2023-11-23 21:17:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:08,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat