Trace number 1733045

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 17.5443 17.5493

General information on the benchmark

NameCRAFTED/ramseycube/
Q32inK09.cnf
MD5SUM58cbf73dc7f1fd4bb325152069db03fb
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.8174
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of clauses7938
Sum of the clauses size92232
Maximum clause length12
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 4378
Number of clauses of size 50
Number of clauses of size over 57560

Solver Data 

17.49/17.54	c starting MXC with:
17.49/17.54	c cnf_path = HOME/instance-1733045-1240784663.cnf
17.49/17.54	c restart_strategy = auto
17.49/17.54	c sign_strategy = cached
17.49/17.54	c use_preprocessing = -1
17.49/17.54	c output_implicant = 1
17.49/17.54	c timeout_seconds = 0
17.49/17.54	c running SatELite... done
17.49/17.54	c 1 vars eliminated
17.49/17.54	c received 0 units and 7938 clauses from SatELite
17.49/17.54	c 0 assignments made, starting to guess now
17.49/17.54	c ===================================[MXC]=====================================
17.49/17.54	c | Conflicts |                Clause Statistics                   |   Vars   |
17.49/17.54	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
17.49/17.54	c =============================================================================
17.49/17.54	c |         0 |       0       0     7938        0        0     nan |       36 |
17.49/17.54	c |       100 |       0       0     7938      100     1050    19.8 |       36 |
17.49/17.54	c |       210 |       0       0     7938      210     1105    18.8 |       36 |
17.49/17.54	c |       441 |       0       0     7938      441     1220    18.2 |       36 |
17.49/17.54	c |       805 |       0       0     7938      805     1402    17.8 |       36 |
17.49/17.54	c |      1315 |       0       0     7938     1315     1609    17.4 |       36 |
17.49/17.54	c |      1986 |       0       0     7938     1138     1754    16.2 |       36 |
17.49/17.54	c |      2834 |       0       0     7938     1046     1894    15.6 |       36 |
17.49/17.54	c |      3876 |       0       0     7938     1076     2031    15.8 |       36 |
17.49/17.54	c |      5132 |       0       0     7938     1260     2163    15.7 |       36 |
17.49/17.54	c |      6623 |       0       0     7938     1625     2292    15.2 |       36 |
17.49/17.54	c |      8373 |       0       0     7938     2202     2419    14.6 |       36 |
17.49/17.54	c |     10408 |       0       0     7938     1764     2543    15.5 |       36 |
17.49/17.54	c |     12756 |       0       0     7938     1491     2665    14.6 |       36 |
17.49/17.54	c |     15449 |       0       0     7938     1434     2786    15.8 |       36 |
17.49/17.54	c |     18521 |       0       0     7938     1637     2906    15.3 |       36 |
17.49/17.54	c |     22010 |       0       0     7938     2152     3025    14.3 |       36 |
17.49/17.54	c |     25958 |       0       0     7938     3026     3144    13.5 |       36 |
17.49/17.54	c |     30411 |       0       0     7938     2693     3262    15.2 |       36 |
17.49/17.54	c |     35419 |       0       0     7938     2728     3381    14.5 |       36 |
17.49/17.54	c |     41038 |       0       0     7938     3204     3499    13.7 |       36 |
17.49/17.54	c |     47329 |       0       0     7938     2392     3618    15.4 |       36 |
17.49/17.54	c |     54360 |       0       0     7938     2054     3737    14.5 |       36 |
17.49/17.54	c |     62205 |       0       0     7938     2289     3857    13.0 |       36 |
17.49/17.54	c |     70945 |       0       0     7938     3192     3978    13.8 |       36 |
17.49/17.54	c |     80669 |       0       0     7938     2824     4099    13.9 |       36 |
17.49/17.54	c |     91476 |       0       0     7938     3231     4222    12.8 |       36 |
17.49/17.54	c |    103474 |       0       0     7938     2374     4346    12.9 |       36 |
17.49/17.54	c |    116782 |       0       1     7938     2434     4471    14.2 |       36 |
17.49/17.54	c |    131532 |       0       1     7938     3573     4597    13.6 |       36 |
17.49/17.54	c |    147868 |       0       1     7938     3601     4726    12.4 |       36 |
17.49/17.54	c |    165948 |       0       3     7938     2506     4855    13.9 |       36 |
17.49/17.54	c |    185947 |       0      13     7938     2778     4987    13.3 |       35 |
17.49/17.54	c |    208057 |       0      13     7938     4672     5120    13.7 |       35 |
17.49/17.54	c |    232489 |       0      23     7938     3154     5255    12.9 |       34 |
17.49/17.54	c |    259475 |       0      24     7938     3502     5393    11.5 |       34 |
17.49/17.54	c |    289271 |       0      53     7938     3200     5532     9.5 |       31 |
17.49/17.54	c |    292260 |       0      87     7938     3373     5546     9.7 |       10 |
17.49/17.54	c ----- stats for thread 0 -----
17.49/17.54	c restarts: 7
17.49/17.54	c decisions: 308273
17.49/17.54	c propagations: 2036779
17.49/17.54	c conflicts: 292260
17.49/17.54	c 17.547s elapsed
17.49/17.54	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-1733045-1240784663/watcher-1733045-1240784663 -o /tmp/evaluation-result-1733045-1240784663/solver-1733045-1240784663 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1733045-1240784663.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: 1.00 1.00 1.00 3/67 11272
/proc/meminfo: memFree=1542944/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=1376 CPUtime=0
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 218 0 0 0 0 0 0 0 18 0 1 0 106492438 1409024 204 1992294400 134512640 135192793 4294956208 18446744073709551615 134539563 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 344 204 54 166 0 175 0

[startup+0.0196781 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 11272
/proc/meminfo: memFree=1542944/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=2080 CPUtime=0.01
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 456 0 0 0 1 0 0 0 18 0 1 0 106492438 2129920 375 1992294400 134512640 135192793 4294956208 18446744073709551615 134567773 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 520 375 55 166 0 351 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2080

[startup+0.101684 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 11272
/proc/meminfo: memFree=1542944/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=2080 CPUtime=0.09
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 456 0 0 0 9 0 0 0 18 0 1 0 106492438 2129920 375 1992294400 134512640 135192793 4294956208 18446744073709551615 134567648 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 520 375 55 166 0 351 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2080

[startup+0.301701 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 11272
/proc/meminfo: memFree=1542944/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=2080 CPUtime=0.29
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 456 0 0 0 29 0 0 0 19 0 1 0 106492438 2129920 375 1992294400 134512640 135192793 4294956208 18446744073709551615 134567773 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 520 375 55 166 0 351 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2080

[startup+0.701737 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 11272
/proc/meminfo: memFree=1542944/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=2932 CPUtime=0.69
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 667 0 0 0 69 0 0 0 22 0 1 0 106492438 3002368 586 1992294400 134512640 135192793 4294956208 18446744073709551615 134534264 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 733 586 71 166 0 564 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2932

[startup+1.50181 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 11273
/proc/meminfo: memFree=1540632/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=3368 CPUtime=1.49
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 770 0 0 0 149 0 0 0 25 0 1 0 106492438 3448832 689 1992294400 134512640 135192793 4294956208 18446744073709551615 134533815 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 842 689 72 166 0 673 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3368

[startup+3.10195 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 11273
/proc/meminfo: memFree=1540248/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=3648 CPUtime=3.09
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 850 0 0 0 309 0 0 0 25 0 1 0 106492438 3735552 769 1992294400 134512640 135192793 4294956208 18446744073709551615 134533920 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 912 769 72 166 0 743 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3648

[startup+6.30124 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 11273
/proc/meminfo: memFree=1539544/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=4080 CPUtime=6.29
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 953 0 0 0 629 0 0 0 25 0 1 0 106492438 4177920 872 1992294400 134512640 135192793 4294956208 18446744073709551615 134534131 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 1020 872 72 166 0 851 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4080

[startup+12.7018 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 11273
/proc/meminfo: memFree=1538712/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=5024 CPUtime=12.69
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 1144 0 0 0 1269 0 0 0 25 0 1 0 106492438 5144576 1063 1992294400 134512640 135192793 4294956208 18446744073709551615 134534131 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 1256 1063 72 166 0 1087 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 5024

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

[startup+15.9011 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 11273
/proc/meminfo: memFree=1538456/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=5408 CPUtime=15.89
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 1211 0 0 0 1589 0 0 0 25 0 1 0 106492438 5537792 1130 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 1352 1130 72 166 0 1183 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 5408

[startup+16.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 11273
/proc/meminfo: memFree=1538328/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=5600 CPUtime=16.69
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 1248 0 0 0 1669 0 0 0 25 0 1 0 106492438 5734400 1167 1992294400 134512640 135192793 4294956208 18446744073709551615 134533920 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 1400 1167 72 166 0 1231 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 5600

[startup+17.1012 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 11273
/proc/meminfo: memFree=1538328/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=5600 CPUtime=17.09
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 1248 0 0 0 1709 0 0 0 25 0 1 0 106492438 5734400 1167 1992294400 134512640 135192793 4294956208 18446744073709551615 134533892 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 1400 1167 72 166 0 1231 0
Current children cumulated CPU time (s) 17.09
Current children cumulated vsize (KiB) 5600

[startup+17.5012 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 11273
/proc/meminfo: memFree=1538264/2055920 swapFree=4192812/4192956
[pid=11272] ppid=11270 vsize=5600 CPUtime=17.49
/proc/11272/stat : 11272 (mxc-sat09) R 11270 11272 10992 0 -1 4194304 1248 0 0 0 1749 0 0 0 25 0 1 0 106492438 5734400 1167 1992294400 134512640 135192793 4294956208 18446744073709551615 134549692 0 0 4096 0 0 0 0 17 1 0 0
/proc/11272/statm: 1400 1167 72 166 0 1231 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 5600

Child status: 20
Real time (s): 17.5493
CPU time (s): 17.5443
CPU user time (s): 17.5373
CPU system time (s): 0.006998
CPU usage (%): 99.9718
Max. virtual memory (cumulated for all children) (KiB): 5600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.5373
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1251
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= 25

runsolver used 0.017997 second user time and 0.055991 second system time

The end

Launcher Data 

Begin job on node68 at 2009-04-27 00:24:23
IDJOB=1733045
IDBENCH=71133
IDSOLVER=504
FILE ID=node68/1733045-1240784663
PBS_JOBID= 9187273
Free space on /tmp= 66556 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/CRAFTED/ramseycube/Q32inK09.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1733045-1240784663/watcher-1733045-1240784663 -o /tmp/evaluation-result-1733045-1240784663/solver-1733045-1240784663 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1733045-1240784663.cnf

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

MD5SUM BENCH= 58cbf73dc7f1fd4bb325152069db03fb
RANDOM SEED=1783355988

node68.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		: 3000.223
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		: 3000.223
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:       1543424 kB
Buffers:         64876 kB
Cached:         355084 kB
SwapCached:        144 kB
Active:         187376 kB
Inactive:       249168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1543424 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             956 kB
Writeback:           0 kB
Mapped:          26440 kB
Slab:            61648 kB
Committed_AS:   318916 kB
PageTables:       1560 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66556 MiB
End job on node68 at 2009-04-27 00:24:40