Trace number 1553151

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
MXC 2009-03-10UNSAT 4.87626 4.87786

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor064.cnf
MD5SUM1a151a1e93387c74239b48070e3eed97
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.72543
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

4.79/4.87	c starting MXC with:
4.79/4.87	c cnf_path = HOME/instance-1553151-1238711884.cnf
4.79/4.87	c restart_strategy = auto
4.79/4.87	c sign_strategy = cached
4.79/4.87	c use_preprocessing = -1
4.79/4.87	c output_implicant = 1
4.79/4.87	c timeout_seconds = 0
4.79/4.87	c running SatELite... done
4.79/4.87	c 13108 vars eliminated
4.79/4.87	c received 18 units and 16619 clauses from SatELite
4.79/4.87	c 13125 assignments made, starting to guess now
4.79/4.87	c ===================================[MXC]=====================================
4.79/4.87	c | Conflicts |                Clause Statistics                   |   Vars   |
4.79/4.87	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
4.79/4.87	c =============================================================================
4.79/4.87	c |         0 |       0    6362    10257        0        0     nan |    14578 |
4.79/4.87	c |       100 |       0    6362    10257      100     1050    11.1 |     1453 |
4.79/4.87	c |       210 |       0    6362    10257      210     1105    23.1 |     1453 |
4.79/4.87	c |       441 |       0    6363    10257      440     1220    29.6 |     1453 |
4.79/4.87	c |       805 |       0    6363    10257      804     1402    26.0 |     1453 |
4.79/4.87	c |      1315 |       0    6365    10257     1312     1657    24.9 |     1453 |
4.79/4.87	c |      1986 |       0    6362    10256     1980     1993    30.2 |     1452 |
4.79/4.87	c |      2834 |       0    6362    10256     1845     2417    34.7 |     1452 |
4.79/4.87	c |      3876 |       0    6362    10256     2887     2938    36.0 |     1452 |
4.79/4.87	c |      5132 |       0    6364    10256     2648     3566    32.7 |     1452 |
4.79/4.87	c |      6623 |       0    6364    10256     4139     4311    40.9 |     1452 |
4.79/4.87	c |      8373 |       0    6364    10256     3656     5186    51.1 |     1452 |
4.79/4.87	c |     10408 |       0    6364    10256     5691     6204    57.1 |     1452 |
4.79/4.87	c |     12756 |       0    6364    10256     4681     7378    66.3 |     1452 |
4.79/4.87	c |     15449 |       0    6364    10256     7374     8724    72.6 |     1452 |
4.79/4.87	c |     18521 |       0    6235    10253     5410    10260    70.2 |     1450 |
4.79/4.87	c |     22010 |       0    6235    10253     8899    12005    73.6 |     1450 |
4.79/4.87	c |     25958 |       0    6236    10253    12846    13979    82.0 |     1450 |
4.79/4.87	c |     30411 |       0    6236    10253     9761    16205    86.1 |     1450 |
4.79/4.87	c |     31800 |       0    6240    10253    11140    16900    81.7 |     1315 |
4.79/4.87	c ----- stats for thread 0 -----
4.79/4.87	c restarts: 162
4.79/4.87	c decisions: 158631
4.79/4.87	c propagations: 2003884
4.79/4.87	c conflicts: 31800
4.79/4.87	c 4.872s elapsed
4.79/4.87	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1553151-1238711884/watcher-1553151-1238711884 -o /tmp/evaluation-result-1553151-1238711884/solver-1553151-1238711884 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1553151-1238711884.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.05 1.53 1.80 3/64 4440
/proc/meminfo: memFree=1493352/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=3492 CPUtime=0
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 667 0 0 0 0 0 0 0 20 0 1 0 1143852079 3575808 653 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 873 655 53 166 0 704 0

[startup+0.053466 s]
/proc/loadavg: 1.05 1.53 1.80 3/64 4440
/proc/meminfo: memFree=1493352/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=6796 CPUtime=0.05
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 1578 0 0 0 4 1 0 0 20 0 1 0 1143852079 6959104 1404 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 1699 1404 56 166 0 1530 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6796

[startup+0.101473 s]
/proc/loadavg: 1.05 1.53 1.80 3/64 4440
/proc/meminfo: memFree=1493352/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=8644 CPUtime=0.09
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 2044 0 0 0 8 1 0 0 20 0 1 0 1143852079 8851456 1870 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 2161 1870 56 166 0 1992 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8644

[startup+0.301513 s]
/proc/loadavg: 1.05 1.53 1.80 3/64 4440
/proc/meminfo: memFree=1493352/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=14756 CPUtime=0.29
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 3579 0 0 0 28 1 0 0 22 0 1 0 1143852079 15110144 3405 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 3689 3405 56 166 0 3520 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14756

[startup+0.701592 s]
/proc/loadavg: 1.05 1.53 1.80 3/64 4440
/proc/meminfo: memFree=1493352/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=17452 CPUtime=0.69
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 4173 0 0 0 67 2 0 0 25 0 1 0 1143852079 17870848 3999 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 4363 3999 56 166 0 4194 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17452

[startup+1.50175 s]
/proc/loadavg: 1.05 1.53 1.80 2/65 4441
/proc/meminfo: memFree=1477216/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=18384 CPUtime=1.49
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 4408 0 0 0 147 2 0 0 25 0 1 0 1143852079 18825216 4234 1992294400 134512640 135192793 4294956224 18446744073709551615 134573925 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 4596 4234 56 166 0 4427 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 18384

[startup+3.10107 s]
/proc/loadavg: 1.05 1.53 1.80 2/65 4441
/proc/meminfo: memFree=1477024/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=18912 CPUtime=3.09
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 4853 0 0 0 307 2 0 0 25 0 1 0 1143852079 19365888 4477 1992294400 134512640 135192793 4294956224 18446744073709551615 134532620 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 4728 4477 73 166 0 4559 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 18912

Solver just ended. Dumping a history of the last processes samples

[startup+3.90123 s]
/proc/loadavg: 1.05 1.52 1.80 2/65 4441
/proc/meminfo: memFree=1475104/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=20364 CPUtime=3.89
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 5219 0 0 0 387 2 0 0 25 0 1 0 1143852079 20852736 4843 1992294400 134512640 135192793 4294956224 18446744073709551615 134552144 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 5091 4843 73 166 0 4922 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 20364

[startup+4.3013 s]
/proc/loadavg: 1.05 1.52 1.80 2/65 4441
/proc/meminfo: memFree=1472352/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=22220 CPUtime=4.29
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 5666 0 0 0 427 2 0 0 25 0 1 0 1143852079 22753280 5290 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 5555 5290 73 166 0 5386 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 22220

[startup+4.70138 s]
/proc/loadavg: 1.05 1.52 1.80 2/65 4441
/proc/meminfo: memFree=1472352/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=22748 CPUtime=4.69
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 5797 0 0 0 467 2 0 0 25 0 1 0 1143852079 23293952 5421 1992294400 134512640 135192793 4294956224 18446744073709551615 134548918 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 5687 5421 73 166 0 5518 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 22748

[startup+4.8014 s]
/proc/loadavg: 1.05 1.52 1.80 2/65 4441
/proc/meminfo: memFree=1472352/2055920 swapFree=4178884/4192956
[pid=4440] ppid=4438 vsize=22748 CPUtime=4.79
/proc/4440/stat : 4440 (mxc-sat09) R 4438 4440 4319 0 -1 4194304 5799 0 0 0 477 2 0 0 25 0 1 0 1143852079 23293952 5423 1992294400 134512640 135192793 4294956224 18446744073709551615 134534131 0 0 4096 0 0 0 0 17 1 0 0
/proc/4440/statm: 5687 5423 73 166 0 5518 0
Current children cumulated CPU time (s) 4.79
Current children cumulated vsize (KiB) 22748

Child status: 20
Real time (s): 4.87786
CPU time (s): 4.87626
CPU user time (s): 4.84326
CPU system time (s): 0.032994
CPU usage (%): 99.9672
Max. virtual memory (cumulated for all children) (KiB): 22748

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.84326
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5802
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 8

runsolver used 0.007998 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node75 at 2009-04-03 00:38:04
IDJOB=1553151
IDBENCH=70756
IDSOLVER=504
FILE ID=node75/1553151-1238711884
PBS_JOBID= 9085325
Free space on /tmp= 64884 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor064.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553151-1238711884/watcher-1553151-1238711884 -o /tmp/evaluation-result-1553151-1238711884/solver-1553151-1238711884 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1553151-1238711884.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 1a151a1e93387c74239b48070e3eed97
RANDOM SEED=1642749943

node75.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.263
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.263
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1493832 kB
Buffers:         82976 kB
Cached:         389992 kB
SwapCached:       8268 kB
Active:         264692 kB
Inactive:       218056 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1493832 kB
SwapTotal:     4192956 kB
SwapFree:      4178884 kB
Dirty:            1548 kB
Writeback:           0 kB
Mapped:          15320 kB
Slab:            65176 kB
Committed_AS:  2331272 kB
PageTables:       1420 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 64884 MiB
End job on node75 at 2009-04-03 00:38:09