Trace number 1773587

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 5.11422 5.1164

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 benchmark3.72043
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 

5.09/5.11	c starting MXC with:
5.09/5.11	c cnf_path = HOME/instance-1773587-1241301622.cnf
5.09/5.11	c restart_strategy = auto
5.09/5.11	c sign_strategy = cached
5.09/5.11	c use_preprocessing = -1
5.09/5.11	c output_implicant = 1
5.09/5.11	c timeout_seconds = 0
5.09/5.11	c running SatELite... done
5.09/5.11	c 13108 vars eliminated
5.09/5.11	c received 18 units and 16619 clauses from SatELite
5.09/5.11	c 13125 assignments made, starting to guess now
5.09/5.11	c ===================================[MXC]=====================================
5.09/5.11	c | Conflicts |                Clause Statistics                   |   Vars   |
5.09/5.11	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
5.09/5.11	c =============================================================================
5.09/5.11	c |         0 |       0    6362    10257        0        0     nan |    14578 |
5.09/5.11	c |       100 |       0    6362    10257      100     1050    11.1 |     1453 |
5.09/5.11	c |       210 |       0    6362    10257      210     1105    23.1 |     1453 |
5.09/5.11	c |       441 |       0    6363    10257      440     1220    29.6 |     1453 |
5.09/5.11	c |       805 |       0    6363    10257      804     1402    26.0 |     1453 |
5.09/5.11	c |      1315 |       0    6365    10257     1312     1657    24.9 |     1453 |
5.09/5.11	c |      1986 |       0    6362    10256     1980     1993    30.2 |     1452 |
5.09/5.11	c |      2834 |       0    6362    10256     1845     2417    34.7 |     1452 |
5.09/5.11	c |      3876 |       0    6362    10256     2887     2938    36.0 |     1452 |
5.09/5.11	c |      5132 |       0    6364    10256     2648     3566    32.7 |     1452 |
5.09/5.11	c |      6623 |       0    6364    10256     4139     4311    40.9 |     1452 |
5.09/5.11	c |      8373 |       0    6364    10256     3656     5186    51.1 |     1452 |
5.09/5.11	c |     10408 |       0    6364    10256     5691     6204    57.1 |     1452 |
5.09/5.11	c |     12756 |       0    6364    10256     4681     7378    66.3 |     1452 |
5.09/5.11	c |     15449 |       0    6364    10256     7374     8724    72.6 |     1452 |
5.09/5.11	c |     18521 |       0    6235    10253     5410    10260    70.2 |     1450 |
5.09/5.11	c |     22010 |       0    6235    10253     8899    12005    73.6 |     1450 |
5.09/5.11	c |     25958 |       0    6236    10253    12846    13979    82.0 |     1450 |
5.09/5.11	c |     30411 |       0    6236    10253     9761    16205    86.1 |     1450 |
5.09/5.11	c |     31800 |       0    6240    10253    11140    16900    81.7 |     1315 |
5.09/5.11	c ----- stats for thread 0 -----
5.09/5.11	c restarts: 162
5.09/5.11	c decisions: 158631
5.09/5.11	c propagations: 2003884
5.09/5.11	c conflicts: 31800
5.09/5.11	c 5.111s elapsed
5.09/5.11	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-1773587-1241301622/watcher-1773587-1241301622 -o /tmp/evaluation-result-1773587-1241301622/solver-1773587-1241301622 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1773587-1241301622.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.07 3/64 24644
/proc/meminfo: memFree=1915936/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=3352 CPUtime=0
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 650 0 0 0 0 0 0 0 18 0 1 0 158190294 3432448 636 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 838 642 53 166 0 669 0

[startup+0.091892 s]
/proc/loadavg: 1.00 1.00 1.07 3/64 24644
/proc/meminfo: memFree=1915936/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=8116 CPUtime=0.08
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 1905 0 0 0 8 0 0 0 18 0 1 0 158190294 8310784 1731 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 2029 1732 56 166 0 1860 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 8116

[startup+0.101893 s]
/proc/loadavg: 1.00 1.00 1.07 3/64 24644
/proc/meminfo: memFree=1915936/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=8512 CPUtime=0.09
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 1994 0 0 0 9 0 0 0 18 0 1 0 158190294 8716288 1820 1992294400 134512640 135192793 4294956224 18446744073709551615 134750359 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 2128 1821 56 166 0 1959 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8512

[startup+0.30191 s]
/proc/loadavg: 1.00 1.00 1.07 3/64 24644
/proc/meminfo: memFree=1915936/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=14488 CPUtime=0.29
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 3523 0 0 0 28 1 0 0 19 0 1 0 158190294 14835712 3349 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 3622 3349 56 166 0 3453 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14488

[startup+0.701947 s]
/proc/loadavg: 1.00 1.00 1.07 3/64 24644
/proc/meminfo: memFree=1915936/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=17452 CPUtime=0.69
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 4152 0 0 0 68 1 0 0 22 0 1 0 158190294 17870848 3978 1992294400 134512640 135192793 4294956224 18446744073709551615 134572746 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 4363 3978 56 166 0 4194 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17452

[startup+1.50202 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 24645
/proc/meminfo: memFree=1899736/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=18252 CPUtime=1.49
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 4385 0 0 0 147 2 0 0 25 0 1 0 158190294 18690048 4211 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 4563 4211 56 166 0 4394 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 18252

[startup+3.10116 s]
/proc/loadavg: 1.00 1.00 1.07 3/65 24645
/proc/meminfo: memFree=1899480/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=18252 CPUtime=3.09
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 4679 0 0 0 307 2 0 0 25 0 1 0 158190294 18690048 4303 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 4563 4303 73 166 0 4394 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 18252

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

[startup+3.90123 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 24645
/proc/meminfo: memFree=1898328/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=19968 CPUtime=3.89
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 5099 0 0 0 387 2 0 0 25 0 1 0 158190294 20447232 4723 1992294400 134512640 135192793 4294956224 18446744073709551615 134552442 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 4992 4723 73 166 0 4823 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 19968

[startup+4.70131 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 24645
/proc/meminfo: memFree=1895640/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=22748 CPUtime=4.69
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 5792 0 0 0 466 3 0 0 25 0 1 0 158190294 23293952 5416 1992294400 134512640 135192793 4294956224 18446744073709551615 134552552 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 5687 5416 73 166 0 5518 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 22748

[startup+5.10134 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 24645
/proc/meminfo: memFree=1895640/2055920 swapFree=4191900/4192956
[pid=24644] ppid=24642 vsize=22748 CPUtime=5.09
/proc/24644/stat : 24644 (mxc-sat09) R 24642 24644 24551 0 -1 4194304 5799 0 0 0 506 3 0 0 25 0 1 0 158190294 23293952 5423 1992294400 134512640 135192793 4294956224 18446744073709551615 134533849 0 0 4096 0 0 0 0 17 1 0 0
/proc/24644/statm: 5687 5423 73 166 0 5518 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 22748

Child status: 20
Real time (s): 5.1164
CPU time (s): 5.11422
CPU user time (s): 5.07423
CPU system time (s): 0.039993
CPU usage (%): 99.9574
Max. virtual memory (cumulated for all children) (KiB): 22748

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.07423
system time used= 0.039993
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= 10

runsolver used 0.006998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node43 at 2009-05-03 00:00:22
IDJOB=1773587
IDBENCH=70756
IDSOLVER=613
FILE ID=node43/1773587-1241301622
PBS_JOBID= 9225186
Free space on /tmp= 66348 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-1773587-1241301622/watcher-1773587-1241301622 -o /tmp/evaluation-result-1773587-1241301622/solver-1773587-1241301622 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1773587-1241301622.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 1a151a1e93387c74239b48070e3eed97
RANDOM SEED=973662382

node43.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		: 3000.237
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		: 3000.237
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1916352 kB
Buffers:         15424 kB
Cached:          55104 kB
SwapCached:        260 kB
Active:          17976 kB
Inactive:        65800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1916352 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            1320 kB
Writeback:           0 kB
Mapped:          21824 kB
Slab:            41764 kB
Committed_AS:   732088 kB
PageTables:       1444 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= 66348 MiB
End job on node43 at 2009-05-03 00:00:28