Trace number 333131

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
MiraXT v2SAT 2.70559 2.70841

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
MD5SUM0a1b9434c65125233161905ac395e7f3
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.34864
Satisfiable
(Un)Satisfiability was proved
Number of variables2901
Number of clauses18243
Sum of the clauses size130564
Maximum clause length13
Minimum clause length1
Number of clauses of size 128
Number of clauses of size 2401
Number of clauses of size 32345
Number of clauses of size 4462
Number of clauses of size 5637
Number of clauses of size over 514370

Solver Data (download as text)

0.00/0.00	c Starting MiraXTv2...
2.59/2.69	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node21/watcher-333131-1178896966 -o ROOT/results/node21/solver-333131-1178896966 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/333131-1178896966/MiraXTv2_dyn /tmp/evaluation/333131-1178896966/instance-333131-1178896966.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: 1.91 1.83 1.45 3/77 1360
/proc/meminfo: memFree=1667296/2055920 swapFree=4156344/4192956
[pid=1360] ppid=1358 vsize=3788 CPUtime=0
/proc/1360/stat : 1360 (MiraXTv2_dyn) R 1358 1360 910 0 -1 4194304 387 0 0 0 0 0 0 0 18 0 1 0 337613912 3878912 362 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/1360/statm: 947 370 202 20 0 305 0

[startup+0.079404 s]
/proc/loadavg: 1.91 1.83 1.45 3/77 1360
/proc/meminfo: memFree=1667296/2055920 swapFree=4156344/4192956
[pid=1360] ppid=1358 vsize=6012 CPUtime=0.07
/proc/1360/stat : 1360 (MiraXTv2_dyn) R 1358 1360 910 0 -1 4194304 982 0 0 0 7 0 0 0 18 0 1 0 337613912 6156288 957 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 134583922 0 0 4096 0 0 0 0 17 1 0 0
/proc/1360/statm: 1503 957 207 20 0 861 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6012

[startup+0.101406 s]
/proc/loadavg: 1.91 1.83 1.45 3/77 1360
/proc/meminfo: memFree=1667296/2055920 swapFree=4156344/4192956
[pid=1360] ppid=1358 vsize=6012 CPUtime=0.09
/proc/1360/stat : 1360 (MiraXTv2_dyn) R 1358 1360 910 0 -1 4194304 984 0 0 0 9 0 0 0 18 0 1 0 337613912 6156288 959 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 134583683 0 0 4096 0 0 0 0 17 1 0 0
/proc/1360/statm: 1503 959 207 20 0 861 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6012

[startup+0.301428 s]
/proc/loadavg: 1.91 1.83 1.45 3/77 1360
/proc/meminfo: memFree=1667296/2055920 swapFree=4156344/4192956
[pid=1360] ppid=1358 vsize=8700 CPUtime=0.29
/proc/1360/stat : 1360 (MiraXTv2_dyn) S 1358 1360 910 0 -1 4194304 1370 0 0 0 29 0 0 0 19 0 2 0 337613912 8908800 1302 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/1360/statm: 2175 1302 218 20 0 1533 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8700

[startup+0.701472 s]
/proc/loadavg: 1.91 1.83 1.45 3/77 1360
/proc/meminfo: memFree=1667296/2055920 swapFree=4156344/4192956
[pid=1360] ppid=1358 vsize=9888 CPUtime=0.69
/proc/1360/stat : 1360 (MiraXTv2_dyn) S 1358 1360 910 0 -1 4194304 1719 0 0 0 69 0 0 0 19 0 2 0 337613912 10125312 1651 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/1360/statm: 2472 1651 218 20 0 1830 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9888

[startup+1.50156 s]
/proc/loadavg: 1.84 1.82 1.45 2/79 1362
/proc/meminfo: memFree=1660496/2055920 swapFree=4156344/4192956
[pid=1360] ppid=1358 vsize=12276 CPUtime=1.49
/proc/1360/stat : 1360 (MiraXTv2_dyn) S 1358 1360 910 0 -1 4194304 2188 0 0 0 149 0 0 0 19 0 2 0 337613912 12570624 2120 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/1360/statm: 3069 2120 218 20 0 2427 0
[pid=1360/tid=1362] ppid=1358 vsize=12276 CPUtime=1.29
/proc/1360/task/1362/stat : 1362 (MiraXTv2_dyn) R 1358 1360 910 0 -1 4194368 1042 0 0 0 129 0 0 0 25 0 2 0 337613933 12570624 2120 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 134520259 0 0 4096 0 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12276

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

[startup+2.30165 s]
/proc/loadavg: 1.84 1.82 1.45 2/79 1362
/proc/meminfo: memFree=1659152/2055920 swapFree=4156344/4192956
[pid=1360] ppid=1358 vsize=12792 CPUtime=2.29
/proc/1360/stat : 1360 (MiraXTv2_dyn) S 1358 1360 910 0 -1 4194304 2334 0 0 0 228 1 0 0 19 0 2 0 337613912 13099008 2266 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/1360/statm: 3198 2266 218 20 0 2556 0
[pid=1360/tid=1362] ppid=1358 vsize=12792 CPUtime=2.08
/proc/1360/task/1362/stat : 1362 (MiraXTv2_dyn) R 1358 1360 910 0 -1 4194368 1188 0 0 0 208 0 0 0 25 0 2 0 337613933 13099008 2266 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 8873595 0 0 4096 0 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 12792

[startup+2.70169 s]
/proc/loadavg: 1.84 1.82 1.45 2/79 1362
/proc/meminfo: memFree=1659152/2055920 swapFree=4156344/4192956
[pid=1360] ppid=1358 vsize=11644 CPUtime=2.69
/proc/1360/stat : 1360 (MiraXTv2_dyn) R 1358 1360 910 0 -1 4194304 2509 0 0 0 268 1 0 0 17 0 1 0 337613912 11923456 2211 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 8869378 0 0 4096 0 0 0 0 17 1 0 0
/proc/1360/statm: 2911 2211 225 20 0 2269 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 11644

Child status: 10
Real time (s): 2.70841
CPU time (s): 2.70559
CPU user time (s): 2.68559
CPU system time (s): 0.019996
CPU usage (%): 99.8958
Max. virtual memory (cumulated for all children) (KiB): 13164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.68559
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2512
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= 15
involuntary context switches= 10

runsolver used 0.008998 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Fri May 11 15:22:46 UTC 2007

IDJOB= 333131
IDBENCH= 24596
IDSOLVER= 129
FILE ID= node21/333131-1178896966

PBS_JOBID= 5251082

Free space on /tmp= 66551 MiB

SOLVER NAME= MiraXT v2
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/others/QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/333131-1178896966/MiraXTv2_dyn /tmp/evaluation/333131-1178896966/instance-333131-1178896966.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-333131-1178896966 -o ROOT/results/node21/solver-333131-1178896966 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/333131-1178896966/MiraXTv2_dyn /tmp/evaluation/333131-1178896966/instance-333131-1178896966.cnf            

META MD5SUM SOLVER= 2ad149617ed8d249d89b067eb44c33da
MD5SUM BENCH=  0a1b9434c65125233161905ac395e7f3

RANDOM SEED= 151900446

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.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		: 3000.232
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		: 3000.232
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:       1667512 kB
Buffers:         47852 kB
Cached:         252780 kB
SwapCached:      15772 kB
Active:         139932 kB
Inactive:       184364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1667512 kB
SwapTotal:     4192956 kB
SwapFree:      4156344 kB
Dirty:            4628 kB
Writeback:           0 kB
Mapped:          30148 kB
Slab:            49624 kB
Committed_AS:  5159892 kB
PageTables:       1784 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= 66551 MiB

End job on node21 on Fri May 11 15:22:49 UTC 2007