Trace number 367671

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 103.542 103.588

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 benchmark0.465928
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)

103.46/103.58	c MXC attempting /tmp/evaluation/367671-1177551253/instance-367671-1177551253.cnf
103.46/103.58	c 0 assignments made, starting to guess now
103.46/103.58	c ===================================[MXC]=====================================
103.46/103.58	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
103.46/103.58	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
103.46/103.58	c =============================================================================
103.46/103.58	c |         0 |   41304   124920 |   13768       0       0     nan |  0.000 % |
103.46/103.58	c |       103 |   41304   124920 |   15144     103    4077    39.6 |  0.000 % |
103.46/103.58	c |       254 |   41304   124920 |   16659     254   16956    66.8 |  0.000 % |
103.46/103.58	c |       479 |   41304   124920 |   18325     479   29810    62.2 |  0.000 % |
103.46/103.58	c |       816 |   41304   124920 |   20157     816   51683    63.3 |  0.000 % |
103.46/103.58	c |      1322 |   41304   124920 |   22173    1321   75560    57.2 |  0.000 % |
103.46/103.58	c |      2081 |   41304   124920 |   24390    2079  122623    59.0 |  0.000 % |
103.46/103.58	c |      3220 |   41304   124920 |   26829    3218  193897    60.3 |  0.000 % |
103.46/103.58	c |      4930 |   41304   124920 |   29512    4926  302677    61.4 |  0.000 % |
103.46/103.58	c |      7494 |   41304   124920 |   32464    7490  442054    59.0 |  0.000 % |
103.46/103.58	c |     11339 |   41304   124920 |   35710   11333  661744    58.4 |  0.000 % |
103.46/103.58	c |     17105 |   41304   124920 |   39281   17098 1044580    61.1 |  0.000 % |
103.46/103.58	c |     25754 |   41304   124920 |   43209   25746 1600368    62.2 |  0.000 % |
103.46/103.58	c |     38729 |   41304   124920 |   47530   38720 2343597    60.5 |  0.000 % |
103.46/103.58	c |     58191 |   41304   124920 |   52283   34413 1920875    55.8 |  0.000 % |
103.46/103.58	c |     87383 |   41304   124920 |   57512   37457 1964328    52.4 |  0.000 % |
103.46/103.58	c |    131174 |   41304   124920 |   63263   52487 2697631    51.4 |  0.000 % |
103.46/103.58	c 103.550s elapsed
103.46/103.58	c restarts: 16
103.46/103.58	c decisions: 263483
103.46/103.58	c propagations: 18007432
103.46/103.58	c conflicts: 163652
103.46/103.58	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node54/watcher-367671-1177551253 -o ROOT/results/node54/solver-367671-1177551253 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/367671-1177551253/mxc /tmp/evaluation/367671-1177551253/instance-367671-1177551253.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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 0.95 0.94 3/66 22295
/proc/meminfo: memFree=1586368/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=1996 CPUtime=0
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 363 0 0 0 0 0 0 0 18 0 1 0 202499782 2043904 348 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 499 349 46 122 0 373 0

[startup+0.0280549 s]
/proc/loadavg: 0.91 0.95 0.94 3/66 22295
/proc/meminfo: memFree=1586368/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=3732 CPUtime=0.02
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 751 0 0 0 2 0 0 0 18 0 1 0 202499782 3821568 736 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 933 736 46 122 0 807 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3732

[startup+0.101064 s]
/proc/loadavg: 0.91 0.95 0.94 3/66 22295
/proc/meminfo: memFree=1586368/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=2932 CPUtime=0.09
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 824 0 0 0 9 0 0 0 18 0 1 0 202499782 3002368 576 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 733 576 59 122 0 607 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2932

[startup+0.301089 s]
/proc/loadavg: 0.91 0.95 0.94 3/66 22295
/proc/meminfo: memFree=1586368/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=3592 CPUtime=0.29
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 964 0 0 0 29 0 0 0 19 0 1 0 202499782 3678208 716 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134703188 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 898 716 59 122 0 772 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3592

[startup+0.701139 s]
/proc/loadavg: 0.91 0.95 0.94 3/66 22295
/proc/meminfo: memFree=1586368/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=4384 CPUtime=0.69
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 1188 0 0 0 69 0 0 0 22 0 1 0 202499782 4489216 940 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519890 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 1096 940 59 122 0 970 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4384

[startup+1.50124 s]
/proc/loadavg: 0.91 0.95 0.94 2/67 22296
/proc/meminfo: memFree=1582264/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=5704 CPUtime=1.49
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 1499 0 0 0 149 0 0 0 25 0 1 0 202499782 5840896 1251 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134518088 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 1426 1251 59 122 0 1300 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5704

[startup+3.10144 s]
/proc/loadavg: 0.91 0.95 0.94 2/67 22296
/proc/meminfo: memFree=1580600/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=7816 CPUtime=3.09
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 2026 0 0 0 308 1 0 0 25 0 1 0 202499782 8003584 1778 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 1954 1778 59 122 0 1828 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7816

[startup+6.30185 s]
/proc/loadavg: 1.00 0.97 0.95 2/67 22296
/proc/meminfo: memFree=1577080/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=10720 CPUtime=6.29
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 2744 0 0 0 628 1 0 0 25 0 1 0 202499782 10977280 2496 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519235 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 2680 2496 59 122 0 2554 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10720

[startup+12.7017 s]
/proc/loadavg: 1.00 0.97 0.95 2/67 22296
/proc/meminfo: memFree=1573304/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=14172 CPUtime=12.68
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 3585 0 0 0 1266 2 0 0 25 0 1 0 202499782 14512128 3337 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530375 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 3543 3337 59 122 0 3417 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 14172

[startup+25.5013 s]
/proc/loadavg: 1.00 0.97 0.95 2/67 22296
/proc/meminfo: memFree=1569656/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=17540 CPUtime=25.48
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 4458 0 0 0 2545 3 0 0 25 0 1 0 202499782 17960960 4161 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 4385 4161 67 122 0 4259 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 17540

[startup+51.1015 s]
/proc/loadavg: 1.00 0.97 0.95 2/67 22296
/proc/meminfo: memFree=1568440/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=19032 CPUtime=51.07
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 4829 0 0 0 5104 3 0 0 25 0 1 0 202499782 19488768 4480 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 4758 4480 67 122 0 4632 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 19032

[startup+102.305 s]
/proc/loadavg: 1.00 0.97 0.95 2/67 22296
/proc/meminfo: memFree=1565304/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=22516 CPUtime=102.26
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 5717 0 0 0 10221 5 0 0 25 0 1 0 202499782 23056384 5249 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519212 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 5629 5249 67 122 0 5503 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 22516

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

[startup+103.101 s]
/proc/loadavg: 1.00 0.97 0.95 2/67 22296
/proc/meminfo: memFree=1565304/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=22516 CPUtime=103.06
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 5717 0 0 0 10301 5 0 0 25 0 1 0 202499782 23056384 5249 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 5629 5249 67 122 0 5503 0
Current children cumulated CPU time (s) 103.06
Current children cumulated vsize (KiB) 22516

[startup+103.501 s]
/proc/loadavg: 1.00 0.97 0.95 2/67 22296
/proc/meminfo: memFree=1565304/2055920 swapFree=4182160/4192956
[pid=22295] ppid=22293 vsize=22516 CPUtime=103.46
/proc/22295/stat : 22295 (mxc) R 22293 22295 21403 0 -1 4194304 5726 0 0 0 10341 5 0 0 25 0 1 0 202499782 23056384 5258 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/22295/statm: 5629 5258 67 122 0 5503 0
Current children cumulated CPU time (s) 103.46
Current children cumulated vsize (KiB) 22516

Child status: 10
Real time (s): 103.588
CPU time (s): 103.542
CPU user time (s): 103.485
CPU system time (s): 0.056991
CPU usage (%): 99.9562
Max. virtual memory (cumulated for all children) (KiB): 22516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 103.485
system time used= 0.056991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5729
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= 236

runsolver used 0.091986 second user time and 0.291955 second system time

The end

Launcher Data (download as text)

Begin job on node54 on Thu Apr 26 01:34:13 UTC 2007

IDJOB= 367671
IDBENCH= 20489
IDSOLVER= 174
FILE ID= node54/367671-1177551253

PBS_JOBID= 4696633

Free space on /tmp= 66339 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/grieu/vmpc_24.cnf
COMMAND LINE= /tmp/evaluation/367671-1177551253/mxc /tmp/evaluation/367671-1177551253/instance-367671-1177551253.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node54/watcher-367671-1177551253 -o ROOT/results/node54/solver-367671-1177551253 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/367671-1177551253/mxc /tmp/evaluation/367671-1177551253/instance-367671-1177551253.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  a69847fa52646cc8016cf4fd8e9d428a

RANDOM SEED= 346829929

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node54.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		: 3000.234
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		: 3000.234
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:       1586840 kB
Buffers:         43988 kB
Cached:         329620 kB
SwapCached:       4132 kB
Active:         192360 kB
Inactive:       205560 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1586840 kB
SwapTotal:     4192956 kB
SwapFree:      4182160 kB
Dirty:            1512 kB
Writeback:           0 kB
Mapped:          30168 kB
Slab:            57096 kB
Committed_AS:  2352452 kB
PageTables:       1452 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= 66339 MiB

End job on node54 on Thu Apr 26 01:35:57 UTC 2007