./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--usb--serial--io_edgeport.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_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/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_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/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--usb--serial--io_edgeport.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/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_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/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 30733f200dc8370f05e0b3b892e3f5dfad9349a4937c910381098403fe8691aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:55,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:55,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:33:55,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:55,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:55,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:55,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:55,401 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:55,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:55,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:55,403 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:55,404 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:55,404 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:55,405 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:55,405 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:55,406 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:55,407 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:55,407 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:55,412 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:55,413 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:55,414 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:55,415 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:55,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:55,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:55,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:55,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:55,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:55,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:55,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:55,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:55,425 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:55,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:55,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:55,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:55,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:55,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:55,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:55,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:55,428 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:55,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:55,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:55,432 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:55,433 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:55,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:55,433 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_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30733f200dc8370f05e0b3b892e3f5dfad9349a4937c910381098403fe8691aa [2023-11-23 20:33:55,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:55,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:55,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:55,773 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:55,773 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:55,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--io_edgeport.ko-entry_point.cil.out.i [2023-11-23 20:33:58,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:59,448 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:59,448 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--io_edgeport.ko-entry_point.cil.out.i [2023-11-23 20:33:59,510 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire/data/eea5e3f01/95788c31c667498a869ff564e353fc97/FLAG5590726fa [2023-11-23 20:33:59,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire/data/eea5e3f01/95788c31c667498a869ff564e353fc97 [2023-11-23 20:33:59,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:59,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:59,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:59,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:59,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:59,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a8aed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59, skipping insertion in model container [2023-11-23 20:33:59,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,727 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:02,271 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_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--io_edgeport.ko-entry_point.cil.out.i[400138,400151] [2023-11-23 20:34:02,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:02,429 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:02,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [4108] [2023-11-23 20:34:02,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4239] [2023-11-23 20:34:02,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4242] [2023-11-23 20:34:02,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4245] [2023-11-23 20:34:02,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4248] [2023-11-23 20:34:02,629 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; incl %0": "+m" (v->counter)); [4270] [2023-11-23 20:34:02,630 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; decl %0": "+m" (v->counter)); [4277] [2023-11-23 20:34:03,079 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_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--io_edgeport.ko-entry_point.cil.out.i[400138,400151] [2023-11-23 20:34:03,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:03,191 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:03,199 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:03,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03 WrapperNode [2023-11-23 20:34:03,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:03,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:03,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:03,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:03,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:03,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:03,710 INFO L138 Inliner]: procedures = 204, calls = 6200, calls flagged for inlining = 78, calls inlined = 75, statements flattened = 10845 [2023-11-23 20:34:03,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:03,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:03,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:03,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:03,723 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:03,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:03,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:03,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:04,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:04,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:04,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:04,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:04,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:04,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:04,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:04,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:04,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (1/1) ... [2023-11-23 20:34:04,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:04,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:04,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:04,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e5cc55-23c4-4f0a-b789-f23a7a6e0ede/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 20:34:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 20:34:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure edge_ioctl [2023-11-23 20:34:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_ioctl [2023-11-23 20:34:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure edge_write_room [2023-11-23 20:34:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_write_room [2023-11-23 20:34:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:34:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:34:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:34:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:34:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:34:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:34:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure edge_disconnect [2023-11-23 20:34:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_disconnect [2023-11-23 20:34:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure send_iosp_ext_cmd [2023-11-23 20:34:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure send_iosp_ext_cmd [2023-11-23 20:34:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure edge_bulk_in_callback [2023-11-23 20:34:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_bulk_in_callback [2023-11-23 20:34:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure edge_break [2023-11-23 20:34:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_break [2023-11-23 20:34:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_tiocmiwait [2023-11-23 20:34:04,546 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_tiocmiwait [2023-11-23 20:34:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 20:34:04,547 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 20:34:04,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 20:34:04,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 20:34:04,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:34:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:34:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-23 20:34:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-23 20:34:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2023-11-23 20:34:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2023-11-23 20:34:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_get_icount [2023-11-23 20:34:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_get_icount [2023-11-23 20:34:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure edge_set_termios [2023-11-23 20:34:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_set_termios [2023-11-23 20:34:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-23 20:34:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-23 20:34:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:34:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:34:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-23 20:34:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-23 20:34:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_lsr [2023-11-23 20:34:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_lsr [2023-11-23 20:34:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 20:34:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 20:34:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:34:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:34:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure edge_tiocmget [2023-11-23 20:34:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_tiocmget [2023-11-23 20:34:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-23 20:34:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-23 20:34:04,552 INFO L130 BoogieDeclarations]: Found specification of procedure unicode_to_ascii [2023-11-23 20:34:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure unicode_to_ascii [2023-11-23 20:34:04,553 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:34:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:34:04,553 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2023-11-23 20:34:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2023-11-23 20:34:04,553 INFO L130 BoogieDeclarations]: Found specification of procedure edge_throttle [2023-11-23 20:34:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_throttle [2023-11-23 20:34:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:34:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2023-11-23 20:34:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2023-11-23 20:34:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_msr [2023-11-23 20:34:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_msr [2023-11-23 20:34:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:34:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 20:34:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 20:34:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:34:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:34:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:34:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:34:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure edge_unthrottle [2023-11-23 20:34:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_unthrottle [2023-11-23 20:34:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure edge_interrupt_callback [2023-11-23 20:34:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_interrupt_callback [2023-11-23 20:34:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:34:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:34:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure change_port_settings [2023-11-23 20:34:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure change_port_settings [2023-11-23 20:34:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure edge_open [2023-11-23 20:34:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_open [2023-11-23 20:34:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:34:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:34:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 20:34:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 20:34:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure dump_product_info [2023-11-23 20:34:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_product_info [2023-11-23 20:34:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 20:34:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 20:34:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-23 20:34:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-23 20:34:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure edge_bulk_out_data_callback [2023-11-23 20:34:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_bulk_out_data_callback [2023-11-23 20:34:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:34:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 20:34:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 20:34:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:34:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure edge_release [2023-11-23 20:34:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_release [2023-11-23 20:34:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure edge_tty_recv [2023-11-23 20:34:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_tty_recv [2023-11-23 20:34:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure send_more_port_data [2023-11-23 20:34:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure send_more_port_data [2023-11-23 20:34:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure edge_close [2023-11-23 20:34:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_close [2023-11-23 20:34:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:34:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-23 20:34:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-23 20:34:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure edge_chars_in_buffer [2023-11-23 20:34:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_chars_in_buffer [2023-11-23 20:34:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2023-11-23 20:34:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2023-11-23 20:34:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:34:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:34:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure rom_read [2023-11-23 20:34:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rom_read [2023-11-23 20:34:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 20:34:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 20:34:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 20:34:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 20:34:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 20:34:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 20:34:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-23 20:34:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-23 20:34:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:34:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:34:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure process_rcvd_status [2023-11-23 20:34:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure process_rcvd_status [2023-11-23 20:34:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:34:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 20:34:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 20:34:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 20:34:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 20:34:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure send_cmd_write_uart_register [2023-11-23 20:34:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure send_cmd_write_uart_register [2023-11-23 20:34:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure edge_tiocmset [2023-11-23 20:34:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_tiocmset [2023-11-23 20:34:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:34:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:34:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure request_ihex_firmware [2023-11-23 20:34:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure request_ihex_firmware [2023-11-23 20:34:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 20:34:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 20:34:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:34:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 20:34:04,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 20:34:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure edge_startup [2023-11-23 20:34:04,579 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_startup [2023-11-23 20:34:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:34:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:34:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-23 20:34:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-23 20:34:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-23 20:34:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-23 20:34:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 20:34:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 20:34:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 20:34:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 20:34:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure edge_port_remove [2023-11-23 20:34:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_port_remove [2023-11-23 20:34:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure write_cmd_usb [2023-11-23 20:34:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure write_cmd_usb [2023-11-23 20:34:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure block_until_chase_response [2023-11-23 20:34:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure block_until_chase_response [2023-11-23 20:34:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-11-23 20:34:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-11-23 20:34:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 20:34:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 20:34:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure edge_write [2023-11-23 20:34:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_write [2023-11-23 20:34:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-23 20:34:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-23 20:34:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-23 20:34:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-23 20:34:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2023-11-23 20:34:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2023-11-23 20:34:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2023-11-23 20:34:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2023-11-23 20:34:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure edge_port_probe [2023-11-23 20:34:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure edge_port_probe [2023-11-23 20:34:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-23 20:34:04,584 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-23 20:34:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:04,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:05,438 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:05,442 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:06,707 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:34:26,438 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:29,415 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:29,415 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:34:29,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:29 BoogieIcfgContainer [2023-11-23 20:34:29,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:29,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:29,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:29,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:29,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:59" (1/3) ... [2023-11-23 20:34:29,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c84c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:29, skipping insertion in model container [2023-11-23 20:34:29,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:03" (2/3) ... [2023-11-23 20:34:29,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c84c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:29, skipping insertion in model container [2023-11-23 20:34:29,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:29" (3/3) ... [2023-11-23 20:34:29,435 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--io_edgeport.ko-entry_point.cil.out.i [2023-11-23 20:34:29,463 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:29,463 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:29,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:29,647 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;@7a5bb0ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:29,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:29,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 2811 states, 1822 states have (on average 1.4050493962678376) internal successors, (2560), 1921 states have internal predecessors, (2560), 902 states have call successors, (902), 86 states have call predecessors, (902), 85 states have return successors, (896), 882 states have call predecessors, (896), 896 states have call successors, (896) [2023-11-23 20:34:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2023-11-23 20:34:29,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:29,734 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:29,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:29,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:29,744 INFO L85 PathProgramCache]: Analyzing trace with hash -582997731, now seen corresponding path program 1 times [2023-11-23 20:34:29,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:29,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270094658] [2023-11-23 20:34:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:29,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2023-11-23 20:34:36,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:36,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270094658] [2023-11-23 20:34:36,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270094658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:36,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:36,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:34:36,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200491649] [2023-11-23 20:34:36,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:36,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:36,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:36,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:36,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:37,001 INFO L87 Difference]: Start difference. First operand has 2811 states, 1822 states have (on average 1.4050493962678376) internal successors, (2560), 1921 states have internal predecessors, (2560), 902 states have call successors, (902), 86 states have call predecessors, (902), 85 states have return successors, (896), 882 states have call predecessors, (896), 896 states have call successors, (896) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-11-23 20:34:39,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []