Trace number 319849

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, and are wall clock time (not CPU 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 2007-02-08SAT 103.644 103.688

General information on the benchmark

Nameindustrial/grieu/
vmpc_24.cnf
MD5SUMa69847fa52646cc8016cf4fd8e9d428a
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.459929
Satisfiable
(Un)Satisfiability was proved
Number of variables576
Number of clauses67872
Sum of the clauses size178056
Maximum clause length24
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 226568
Number of clauses of size 341256
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 548

Solver Data (download as text)

103.57/103.68	c MXC attempting /tmp/evaluation/319849-1173037085/instance-319849-1173037085.cnf
103.57/103.68	c 0 assignments made, starting to guess now
103.57/103.68	c ===================================[MXC]=====================================
103.57/103.68	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
103.57/103.68	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
103.57/103.68	c =============================================================================
103.57/103.68	c |         0 |   41304   124920 |   13768       0       0     nan |  0.000 % |
103.57/103.68	c |       103 |   41304   124920 |   15144     103    4077    39.6 |  0.000 % |
103.57/103.68	c |       254 |   41304   124920 |   16659     254   16956    66.8 |  0.000 % |
103.57/103.68	c |       479 |   41304   124920 |   18325     479   29810    62.2 |  0.000 % |
103.57/103.68	c |       816 |   41304   124920 |   20157     816   51683    63.3 |  0.000 % |
103.57/103.68	c |      1322 |   41304   124920 |   22173    1321   75560    57.2 |  0.000 % |
103.57/103.68	c |      2081 |   41304   124920 |   24390    2079  122623    59.0 |  0.000 % |
103.57/103.68	c |      3220 |   41304   124920 |   26829    3218  193897    60.3 |  0.000 % |
103.57/103.68	c |      4930 |   41304   124920 |   29512    4926  302677    61.4 |  0.000 % |
103.57/103.68	c |      7494 |   41304   124920 |   32464    7490  442054    59.0 |  0.000 % |
103.57/103.68	c |     11339 |   41304   124920 |   35710   11333  661744    58.4 |  0.000 % |
103.57/103.68	c |     17105 |   41304   124920 |   39281   17098 1044580    61.1 |  0.000 % |
103.57/103.68	c |     25754 |   41304   124920 |   43209   25746 1600368    62.2 |  0.000 % |
103.57/103.68	c |     38729 |   41304   124920 |   47530   38720 2343597    60.5 |  0.000 % |
103.57/103.68	c |     58191 |   41304   124920 |   52283   34413 1920875    55.8 |  0.000 % |
103.57/103.68	c |     87383 |   41304   124920 |   57512   37457 1964328    52.4 |  0.000 % |
103.57/103.68	c |    131174 |   41304   124920 |   63263   52487 2697631    51.4 |  0.000 % |
103.57/103.68	c 103.650s elapsed
103.57/103.68	c restarts: 16
103.57/103.68	c decisions: 263483
103.57/103.68	c propagations: 18007432
103.57/103.68	c conflicts: 163652
103.57/103.68	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node18/watcher-319849-1173037085 -o ROOT/results/node18/solver-319849-1173037085 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/319849-1173037085/mxc /tmp/evaluation/319849-1173037085/instance-319849-1173037085.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): 2400 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: 0.91 0.97 0.93 2/77 32137
/proc/meminfo: memFree=1365880/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=1996 CPUtime=0
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 362 0 0 0 0 0 0 0 18 0 1 0 323663047 2043904 346 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 499 346 46 122 0 373 0

[startup+0.092907 s]
/proc/loadavg: 0.91 0.97 0.93 2/77 32137
/proc/meminfo: memFree=1365880/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=2932 CPUtime=0.08
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 817 0 0 0 8 0 0 0 18 0 1 0 323663047 3002368 568 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519319 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 733 568 59 122 0 607 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2932

[startup+0.102906 s]
/proc/loadavg: 0.91 0.97 0.93 2/77 32137
/proc/meminfo: memFree=1365880/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=2932 CPUtime=0.09
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 825 0 0 0 9 0 0 0 18 0 1 0 323663047 3002368 576 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 733 576 59 122 0 607 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2932

[startup+0.302926 s]
/proc/loadavg: 0.91 0.97 0.93 2/77 32137
/proc/meminfo: memFree=1365880/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=3592 CPUtime=0.29
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 962 0 0 0 29 0 0 0 20 0 1 0 323663047 3678208 713 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134535341 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 898 713 59 122 0 772 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3592

[startup+0.701965 s]
/proc/loadavg: 0.91 0.97 0.93 2/77 32137
/proc/meminfo: memFree=1365880/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=4384 CPUtime=0.69
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 1184 0 0 0 69 0 0 0 24 0 1 0 323663047 4489216 935 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 1096 935 59 122 0 970 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4384

[startup+1.50104 s]
/proc/loadavg: 0.91 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1361904/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=5704 CPUtime=1.49
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 1495 0 0 0 149 0 0 0 25 0 1 0 323663047 5840896 1246 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134530850 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 1426 1246 59 122 0 1300 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5704

[startup+3.1012 s]
/proc/loadavg: 0.91 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1360176/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=7816 CPUtime=3.09
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 2025 0 0 0 308 1 0 0 25 0 1 0 323663047 8003584 1776 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 1954 1776 59 122 0 1828 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7816

[startup+6.30151 s]
/proc/loadavg: 0.92 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1356592/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=10720 CPUtime=6.29
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 2744 0 0 0 627 2 0 0 25 0 1 0 323663047 10977280 2495 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134529875 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 2680 2495 59 122 0 2554 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10720

[startup+12.7011 s]
/proc/loadavg: 0.93 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1352824/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=14172 CPUtime=12.69
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 3587 0 0 0 1266 3 0 0 25 0 1 0 323663047 14512128 3338 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 3543 3338 59 122 0 3417 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 14172

[startup+25.5014 s]
/proc/loadavg: 0.94 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1349176/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=17540 CPUtime=25.49
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 4459 0 0 0 2545 4 0 0 25 0 1 0 323663047 17960960 4161 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 4385 4161 67 122 0 4259 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 17540

[startup+51.1028 s]
/proc/loadavg: 0.96 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1347896/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=19032 CPUtime=51.07
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 4830 0 0 0 5103 4 0 0 25 0 1 0 323663047 19488768 4480 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519964 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 4758 4480 67 122 0 4632 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 19032

[startup+102.306 s]
/proc/loadavg: 0.98 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1344824/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=22516 CPUtime=102.27
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 5718 0 0 0 10221 6 0 0 25 0 1 0 323663047 23056384 5249 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519564 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 5629 5249 67 122 0 5503 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 22516

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

[startup+103.103 s]
/proc/loadavg: 0.98 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1344824/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=22516 CPUtime=103.07
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 5718 0 0 0 10301 6 0 0 25 0 1 0 323663047 23056384 5249 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 5629 5249 67 122 0 5503 0
Current children cumulated CPU time (s) 103.07
Current children cumulated vsize (KiB) 22516

[startup+103.502 s]
/proc/loadavg: 0.98 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1344824/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=22516 CPUtime=103.47
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 5718 0 0 0 10341 6 0 0 25 0 1 0 323663047 23056384 5249 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 5629 5249 67 122 0 5503 0
Current children cumulated CPU time (s) 103.47
Current children cumulated vsize (KiB) 22516

[startup+103.602 s]
/proc/loadavg: 0.98 0.97 0.93 2/78 32138
/proc/meminfo: memFree=1344824/2055920 swapFree=4153516/4192956
[pid=32137] ppid=32135 vsize=22516 CPUtime=103.57
/proc/32137/stat : 32137 (mxc) R 32135 32137 31169 0 -1 4194304 5727 0 0 0 10351 6 0 0 25 0 1 0 323663047 23056384 5258 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519887 0 0 4096 0 0 0 0 17 1 0 0
/proc/32137/statm: 5629 5258 67 122 0 5503 0
Current children cumulated CPU time (s) 103.57
Current children cumulated vsize (KiB) 22516

Child status: 10
Real time (s): 103.688
CPU time (s): 103.644
CPU user time (s): 103.58
CPU system time (s): 0.06399
CPU usage (%): 99.9578
Max. virtual memory (cumulated for all children) (KiB): 22516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 103.58
system time used= 0.06399
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5730
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= 9
involuntary context switches= 2123

runsolver used 0.135979 second user time and 0.242963 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Sun Mar  4 19:38:05 UTC 2007

IDJOB= 319849
IDBENCH= 20489
IDSOLVER= 107
FILE ID= node18/319849-1173037085

PBS_JOBID= 4012235

Free space on /tmp= 66560 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/grieu/vmpc_24.cnf
COMMAND LINE= /tmp/evaluation/319849-1173037085/mxc /tmp/evaluation/319849-1173037085/instance-319849-1173037085.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-319849-1173037085 -o ROOT/results/node18/solver-319849-1173037085 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/319849-1173037085/mxc /tmp/evaluation/319849-1173037085/instance-319849-1173037085.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  a69847fa52646cc8016cf4fd8e9d428a

RANDOM SEED= 949531939

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.236
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		: 3000.236
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:       1366288 kB
Buffers:         40612 kB
Cached:         565512 kB
SwapCached:       3224 kB
Active:         242352 kB
Inactive:       390640 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1366288 kB
SwapTotal:     4192956 kB
SwapFree:      4153516 kB
Dirty:            1532 kB
Writeback:           0 kB
Mapped:          33984 kB
Slab:            42204 kB
Committed_AS:  1155792 kB
PageTables:       1676 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= 66560 MiB

End job on node18 on Sun Mar  4 19:39:49 UTC 2007