./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/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_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/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_b71bf42d-4374-4908-98a0-b859a6e3741a/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 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:22:06,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:22:06,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:22:06,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:22:06,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:22:06,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:22:06,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:22:06,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:22:06,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:22:06,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:22:06,391 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:22:06,392 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:22:06,392 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:22:06,394 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:22:06,395 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:22:06,395 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:22:06,396 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:22:06,396 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:22:06,396 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:22:06,397 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:22:06,397 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:22:06,404 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:22:06,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:22:06,407 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:22:06,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:22:06,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:22:06,408 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:22:06,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:22:06,409 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:22:06,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:22:06,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:22:06,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:22:06,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:22:06,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:22:06,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:06,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:22:06,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:22:06,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:22:06,414 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:22:06,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:22:06,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:22:06,415 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:22:06,415 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:22:06,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:22:06,415 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_b71bf42d-4374-4908-98a0-b859a6e3741a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2023-11-23 21:22:06,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:22:06,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:22:06,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:22:06,824 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:22:06,824 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:22:06,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-23 21:22:10,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:22:10,726 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:22:10,726 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-23 21:22:10,784 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/data/afa2dfd00/97ebbc76bc00481f84a533d060acfb17/FLAG7d4367d1b [2023-11-23 21:22:10,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/data/afa2dfd00/97ebbc76bc00481f84a533d060acfb17 [2023-11-23 21:22:10,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:22:10,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:22:10,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:10,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:22:10,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:22:10,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:10" (1/1) ... [2023-11-23 21:22:10,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15af461e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:10, skipping insertion in model container [2023-11-23 21:22:10,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:10" (1/1) ... [2023-11-23 21:22:10,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:22:12,740 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_b71bf42d-4374-4908-98a0-b859a6e3741a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2023-11-23 21:22:14,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:14,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:22:14,589 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"); [3760] [2023-11-23 21:22:14,593 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3794-3795] [2023-11-23 21:22:14,593 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3798-3799] [2023-11-23 21:22:14,594 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3802-3803] [2023-11-23 21:22:14,594 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3806-3807] [2023-11-23 21:22:14,609 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_b71bf42d-4374-4908-98a0-b859a6e3741a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2023-11-23 21:22:15,087 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)); [7459] [2023-11-23 21:22:15,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7466] [2023-11-23 21:22:15,088 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7475-7476] [2023-11-23 21:22:15,089 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7492-7493] [2023-11-23 21:22:15,090 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)); [7507-7508] [2023-11-23 21:22:15,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [7521] [2023-11-23 21:22:15,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7524] [2023-11-23 21:22:15,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7527] [2023-11-23 21:22:15,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7530] [2023-11-23 21:22:15,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [7547] [2023-11-23 21:22:15,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7550] [2023-11-23 21:22:15,094 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7553] [2023-11-23 21:22:15,094 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7556] [2023-11-23 21:22:15,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:15,507 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:22:15,507 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:22:15,507 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:22:15,518 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:22:15,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15 WrapperNode [2023-11-23 21:22:15,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:15,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:15,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:22:15,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:22:15,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:15,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,024 INFO L138 Inliner]: procedures = 371, calls = 3106, calls flagged for inlining = 200, calls inlined = 181, statements flattened = 6466 [2023-11-23 21:22:16,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:16,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:22:16,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:22:16,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:22:16,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:22:16,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:22:16,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:22:16,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:22:16,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (1/1) ... [2023-11-23 21:22:16,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:16,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:16,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:22:16,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71bf42d-4374-4908-98a0-b859a6e3741a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:22:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2023-11-23 21:22:16,922 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2023-11-23 21:22:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2023-11-23 21:22:16,922 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2023-11-23 21:22:16,923 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2023-11-23 21:22:16,924 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2023-11-23 21:22:16,924 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2023-11-23 21:22:16,924 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2023-11-23 21:22:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:22:16,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:22:16,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2023-11-23 21:22:16,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2023-11-23 21:22:16,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-11-23 21:22:16,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-11-23 21:22:16,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:22:16,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:22:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-23 21:22:16,929 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-23 21:22:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2023-11-23 21:22:16,929 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2023-11-23 21:22:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2023-11-23 21:22:16,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2023-11-23 21:22:16,930 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2023-11-23 21:22:16,930 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2023-11-23 21:22:16,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-23 21:22:16,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-23 21:22:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2023-11-23 21:22:16,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2023-11-23 21:22:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:22:16,931 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:22:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 21:22:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 21:22:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2023-11-23 21:22:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2023-11-23 21:22:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:22:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:22:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-23 21:22:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-23 21:22:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-23 21:22:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-23 21:22:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2023-11-23 21:22:16,935 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2023-11-23 21:22:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2023-11-23 21:22:16,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2023-11-23 21:22:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2023-11-23 21:22:16,937 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2023-11-23 21:22:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-11-23 21:22:16,937 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-11-23 21:22:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-23 21:22:16,937 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-23 21:22:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:22:16,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:22:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:22:16,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:22:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2023-11-23 21:22:16,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2023-11-23 21:22:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2023-11-23 21:22:16,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2023-11-23 21:22:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2023-11-23 21:22:16,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2023-11-23 21:22:16,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-23 21:22:16,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-23 21:22:16,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-11-23 21:22:16,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-11-23 21:22:16,941 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:22:16,942 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:22:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:22:16,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:22:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2023-11-23 21:22:16,943 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2023-11-23 21:22:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2023-11-23 21:22:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2023-11-23 21:22:16,944 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2023-11-23 21:22:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2023-11-23 21:22:16,944 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2023-11-23 21:22:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2023-11-23 21:22:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2023-11-23 21:22:16,945 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2023-11-23 21:22:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2023-11-23 21:22:16,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2023-11-23 21:22:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-23 21:22:16,946 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-23 21:22:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:22:16,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:22:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:22:16,946 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:22:16,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:22:16,947 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:22:16,947 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:22:16,948 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:22:16,948 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2023-11-23 21:22:16,948 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2023-11-23 21:22:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2023-11-23 21:22:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2023-11-23 21:22:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2023-11-23 21:22:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2023-11-23 21:22:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2023-11-23 21:22:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2023-11-23 21:22:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-23 21:22:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-23 21:22:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:22:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:22:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:22:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:22:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2023-11-23 21:22:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2023-11-23 21:22:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2023-11-23 21:22:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2023-11-23 21:22:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:22:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:22:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:22:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:22:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-11-23 21:22:16,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-11-23 21:22:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2023-11-23 21:22:16,955 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2023-11-23 21:22:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:22:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:22:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:22:16,955 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:22:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:22:16,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:22:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-11-23 21:22:16,958 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-11-23 21:22:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:22:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:22:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-23 21:22:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-23 21:22:16,964 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:22:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:22:16,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2023-11-23 21:22:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2023-11-23 21:22:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2023-11-23 21:22:16,967 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2023-11-23 21:22:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:22:16,968 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:22:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:22:16,973 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:22:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:22:16,974 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:22:16,974 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2023-11-23 21:22:16,974 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2023-11-23 21:22:16,974 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-11-23 21:22:16,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-11-23 21:22:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-11-23 21:22:16,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-11-23 21:22:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:22:16,975 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:22:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2023-11-23 21:22:16,975 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2023-11-23 21:22:16,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2023-11-23 21:22:16,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2023-11-23 21:22:16,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:22:16,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:22:16,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2023-11-23 21:22:16,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2023-11-23 21:22:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:22:16,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:22:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-23 21:22:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-23 21:22:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:22:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:22:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2023-11-23 21:22:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2023-11-23 21:22:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2023-11-23 21:22:16,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2023-11-23 21:22:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2023-11-23 21:22:16,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2023-11-23 21:22:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2023-11-23 21:22:16,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2023-11-23 21:22:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:22:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-11-23 21:22:16,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-11-23 21:22:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-23 21:22:16,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-23 21:22:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2023-11-23 21:22:16,980 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2023-11-23 21:22:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 21:22:16,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 21:22:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2023-11-23 21:22:16,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2023-11-23 21:22:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2023-11-23 21:22:16,982 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2023-11-23 21:22:16,982 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:22:16,982 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:22:16,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 21:22:16,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 21:22:16,982 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-23 21:22:16,983 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-23 21:22:16,983 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2023-11-23 21:22:16,983 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2023-11-23 21:22:16,983 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:22:16,983 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:22:16,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2023-11-23 21:22:16,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2023-11-23 21:22:16,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2023-11-23 21:22:16,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2023-11-23 21:22:16,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-23 21:22:16,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-23 21:22:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:22:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2023-11-23 21:22:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2023-11-23 21:22:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:22:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:22:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2023-11-23 21:22:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2023-11-23 21:22:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-23 21:22:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-23 21:22:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:22:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:22:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-11-23 21:22:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2023-11-23 21:22:16,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2023-11-23 21:22:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2023-11-23 21:22:16,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2023-11-23 21:22:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2023-11-23 21:22:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:22:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2023-11-23 21:22:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2023-11-23 21:22:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:22:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:22:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:22:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:22:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:22:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2023-11-23 21:22:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2023-11-23 21:22:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2023-11-23 21:22:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2023-11-23 21:22:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:22:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:22:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:22:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:22:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2023-11-23 21:22:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2023-11-23 21:22:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:22:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:22:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-11-23 21:22:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-11-23 21:22:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2023-11-23 21:22:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2023-11-23 21:22:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2023-11-23 21:22:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2023-11-23 21:22:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2023-11-23 21:22:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2023-11-23 21:22:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2023-11-23 21:22:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2023-11-23 21:22:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-23 21:22:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-23 21:22:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:22:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:22:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2023-11-23 21:22:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2023-11-23 21:22:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:22:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:22:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2023-11-23 21:22:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2023-11-23 21:22:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:22:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:22:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-23 21:22:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-23 21:22:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:22:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:22:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:22:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-23 21:22:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-23 21:22:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-11-23 21:22:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-11-23 21:22:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:22:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:22:18,065 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:22:18,071 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:22:18,701 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:22:19,851 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2023-11-23 21:22:27,745 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:22:29,527 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:22:29,527 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:22:29,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:29 BoogieIcfgContainer [2023-11-23 21:22:29,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:22:29,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:22:29,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:22:29,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:22:29,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:22:10" (1/3) ... [2023-11-23 21:22:29,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc4fff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:29, skipping insertion in model container [2023-11-23 21:22:29,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:15" (2/3) ... [2023-11-23 21:22:29,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc4fff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:29, skipping insertion in model container [2023-11-23 21:22:29,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:29" (3/3) ... [2023-11-23 21:22:29,543 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-23 21:22:29,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:22:29,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:22:29,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:22:29,751 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;@6e85af8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:22:29,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:22:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 1824 states, 1168 states have (on average 1.3544520547945205) internal successors, (1582), 1209 states have internal predecessors, (1582), 529 states have call successors, (529), 127 states have call predecessors, (529), 125 states have return successors, (515), 504 states have call predecessors, (515), 515 states have call successors, (515) [2023-11-23 21:22:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 21:22:29,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:29,788 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:22:29,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:29,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:29,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1295323088, now seen corresponding path program 1 times [2023-11-23 21:22:29,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:29,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353616932] [2023-11-23 21:22:29,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:29,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-23 21:22:31,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:31,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353616932] [2023-11-23 21:22:31,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353616932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:31,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:31,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:22:31,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417346383] [2023-11-23 21:22:31,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:31,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:31,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:31,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:31,125 INFO L87 Difference]: Start difference. First operand has 1824 states, 1168 states have (on average 1.3544520547945205) internal successors, (1582), 1209 states have internal predecessors, (1582), 529 states have call successors, (529), 127 states have call predecessors, (529), 125 states have return successors, (515), 504 states have call predecessors, (515), 515 states have call successors, (515) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:22:34,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:35,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:35,907 INFO L93 Difference]: Finished difference Result 5351 states and 7915 transitions. [2023-11-23 21:22:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:35,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2023-11-23 21:22:35,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:35,985 INFO L225 Difference]: With dead ends: 5351 [2023-11-23 21:22:35,986 INFO L226 Difference]: Without dead ends: 3512 [2023-11-23 21:22:36,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:36,018 INFO L413 NwaCegarLoop]: 2373 mSDtfsCounter, 2522 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 4674 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:36,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 4674 Invalid, 517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2023-11-23 21:22:36,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2023-11-23 21:22:36,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3509. [2023-11-23 21:22:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 2274 states have (on average 1.3430079155672823) internal successors, (3054), 2317 states have internal predecessors, (3054), 989 states have call successors, (989), 246 states have call predecessors, (989), 245 states have return successors, (982), 960 states have call predecessors, (982), 982 states have call successors, (982) [2023-11-23 21:22:36,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 5025 transitions. [2023-11-23 21:22:36,546 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 5025 transitions. Word has length 65 [2023-11-23 21:22:36,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:36,546 INFO L495 AbstractCegarLoop]: Abstraction has 3509 states and 5025 transitions. [2023-11-23 21:22:36,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:22:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 5025 transitions. [2023-11-23 21:22:36,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-23 21:22:36,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:36,576 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:22:36,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:22:36,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:36,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:36,578 INFO L85 PathProgramCache]: Analyzing trace with hash 148498548, now seen corresponding path program 1 times [2023-11-23 21:22:36,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:36,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649878170] [2023-11-23 21:22:36,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:36,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-23 21:22:37,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:37,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649878170] [2023-11-23 21:22:37,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649878170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:37,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:37,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:22:37,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396256006] [2023-11-23 21:22:37,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:37,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:37,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:37,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:37,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:37,194 INFO L87 Difference]: Start difference. First operand 3509 states and 5025 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 21:22:40,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:43,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:45,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:46,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:46,449 INFO L93 Difference]: Finished difference Result 10135 states and 14459 transitions. [2023-11-23 21:22:46,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:46,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2023-11-23 21:22:46,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:46,518 INFO L225 Difference]: With dead ends: 10135 [2023-11-23 21:22:46,518 INFO L226 Difference]: Without dead ends: 6644 [2023-11-23 21:22:46,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:46,543 INFO L413 NwaCegarLoop]: 2345 mSDtfsCounter, 2293 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 4559 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:46,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 4559 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 601 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2023-11-23 21:22:46,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6644 states. [2023-11-23 21:22:47,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6611. [2023-11-23 21:22:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 4271 states have (on average 1.3352844767033483) internal successors, (5703), 4352 states have internal predecessors, (5703), 1863 states have call successors, (1863), 477 states have call predecessors, (1863), 476 states have return successors, (1856), 1811 states have call predecessors, (1856), 1856 states have call successors, (1856) [2023-11-23 21:22:47,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 9422 transitions. [2023-11-23 21:22:47,093 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 9422 transitions. Word has length 83 [2023-11-23 21:22:47,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:47,095 INFO L495 AbstractCegarLoop]: Abstraction has 6611 states and 9422 transitions. [2023-11-23 21:22:47,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 21:22:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 9422 transitions. [2023-11-23 21:22:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 21:22:47,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:47,103 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:22:47,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:22:47,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:47,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1113381436, now seen corresponding path program 1 times [2023-11-23 21:22:47,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:47,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820224038] [2023-11-23 21:22:47,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:47,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:47,612 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-23 21:22:47,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820224038] [2023-11-23 21:22:47,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820224038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:47,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:47,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:22:47,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101726597] [2023-11-23 21:22:47,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:47,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:47,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:47,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:47,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:47,623 INFO L87 Difference]: Start difference. First operand 6611 states and 9422 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 21:22:50,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:53,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:55,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:56,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:56,603 INFO L93 Difference]: Finished difference Result 19559 states and 28116 transitions. [2023-11-23 21:22:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:56,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2023-11-23 21:22:56,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted.