Trace number 1720141

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
CircUs 2009-03-23UNSAT 50.9193 50.9436

General information on the benchmark

Namevelev-engi-uns-1.0-4nd.cnf
MD5SUM700f8e86139a93fca212e22efa0f7d2b
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.1565
Satisfiable
(Un)Satisfiability was proved
Number of variables7000
Number of clauses67586
Sum of the clauses size190944
Maximum clause length58
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 256649
Number of clauses of size 35901
Number of clauses of size 4437
Number of clauses of size 5591
Number of clauses of size over 54007

Solver Data 

0.39/0.49	c CirCUs release 2.0 (compiled 25-Mar-09 at 4:46 PM)
0.39/0.49	c Eliminate time :        0.4 
50.87/50.94	c CNF read time  :       0.08 
50.87/50.94	c CNF solve time :      50.88 
50.87/50.94	c Memory usage :    13.8164 MB
50.87/50.94	c Restart : 385
50.87/50.94	c Decisions : random(1029), heuristic(275848), history(0/0)
50.87/50.94	c Implications : 48565872
50.87/50.94	c Forced Restart : 0
50.87/50.94	c Polarity Change : 648
50.87/50.94	c Learned clasues  : 15437 out of 174571
50.87/50.94	c Learned literals : 463236 out of 6845044
50.87/50.94	c Number of first UIP : 40373 out of 174571
50.87/50.94	c Number of simplify : 5
50.87/50.94	c Number of continuous distill : 525
50.87/50.94	c Average depth of OTS : 5
50.87/50.94	c Average depth of additional conflict : 24
50.87/50.94	c Saved conflict clasues : 175
50.87/50.94	c Saved conflict literals : 3319
50.87/50.94	c Additional conflict clauses : 3450
50.87/50.94	c Additional conflict literals : 124103
50.87/50.94	c Additional conflict analysis : 14789
50.87/50.94	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-1720141-1240652965/watcher-1720141-1240652965 -o /tmp/evaluation-result-1720141-1240652965/solver-1720141-1240652965 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/CirCUs HOME/instance-1720141-1240652965.cnf -t 1200 

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 3/64 26046
/proc/meminfo: memFree=1336336/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=2268 CPUtime=0
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 252 0 0 0 0 0 0 0 18 0 1 120000 93324508 2322432 237 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 567 238 70 173 0 392 0

[startup+0.083906 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 26046
/proc/meminfo: memFree=1336336/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=6356 CPUtime=0.07
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 1379 0 0 0 7 0 0 0 18 0 1 120000 93324508 6508544 1331 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 1589 1331 70 173 0 1414 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6356

[startup+0.101908 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 26046
/proc/meminfo: memFree=1336336/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=6740 CPUtime=0.09
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 1488 0 0 0 9 0 0 0 18 0 1 120000 93324508 6901760 1374 1992294400 134512640 135224549 4294956224 18446744073709551615 134571663 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 1685 1374 76 173 0 1510 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6740

[startup+0.301944 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 26046
/proc/meminfo: memFree=1336336/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=8292 CPUtime=0.29
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 1914 0 0 0 29 0 0 0 19 0 1 120000 93324508 8491008 1800 1992294400 134512640 135224549 4294956224 18446744073709551615 134570382 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 2073 1800 77 173 0 1898 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8292

[startup+0.702017 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 26046
/proc/meminfo: memFree=1336336/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=8516 CPUtime=0.69
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 2000 0 0 0 69 0 0 0 22 0 1 120000 93324508 8720384 1886 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 2129 1886 93 173 0 1954 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8516

[startup+1.50116 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1328840/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=9440 CPUtime=1.49
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 2208 0 0 0 149 0 0 0 25 0 1 120000 93324508 9666560 2094 1992294400 134512640 135224549 4294956224 18446744073709551615 134726407 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 2360 2094 93 173 0 2185 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9440

[startup+3.10145 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1327944/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=9704 CPUtime=3.09
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 2295 0 0 0 309 0 0 0 25 0 1 120000 93324508 9936896 2181 1992294400 134512640 135224549 4294956224 18446744073709551615 134595278 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 2426 2181 93 173 0 2251 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 9704

[startup+6.30104 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1327496/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=9968 CPUtime=6.28
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 2357 0 0 0 628 0 0 0 25 0 1 120000 93324508 10207232 2243 1992294400 134512640 135224549 4294956224 18446744073709551615 134619184 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 2492 2243 93 173 0 2317 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 9968

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1326664/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=10892 CPUtime=12.68
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 2573 0 0 0 1268 0 0 0 25 0 1 120000 93324508 11153408 2459 1992294400 134512640 135224549 4294956224 18446744073709551615 134587817 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 2723 2459 93 173 0 2548 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 10892

[startup+25.5015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1325256/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=12276 CPUtime=25.48
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 2936 0 0 0 2547 1 0 0 25 0 1 120000 93324508 12570624 2822 1992294400 134512640 135224549 4294956224 18446744073709551615 134595383 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 3069 2822 93 173 0 2894 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 12276

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

[startup+38.3019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1323720/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=13728 CPUtime=38.27
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 3302 0 0 0 3826 1 0 0 25 0 1 120000 93324508 14057472 3188 1992294400 134512640 135224549 4294956224 18446744073709551615 134595525 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 3432 3188 93 173 0 3257 0
Current children cumulated CPU time (s) 38.27
Current children cumulated vsize (KiB) 13728

[startup+44.702 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1323464/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=13996 CPUtime=44.67
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 3362 0 0 0 4465 2 0 0 25 0 1 120000 93324508 14331904 3248 1992294400 134512640 135224549 4294956224 18446744073709551615 134585011 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 3499 3248 93 173 0 3324 0
Current children cumulated CPU time (s) 44.67
Current children cumulated vsize (KiB) 13996

[startup+47.9016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1323464/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=14144 CPUtime=47.87
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 3384 0 0 0 4785 2 0 0 25 0 1 120000 93324508 14483456 3270 1992294400 134512640 135224549 4294956224 18446744073709551615 134595278 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 3536 3270 93 173 0 3361 0
Current children cumulated CPU time (s) 47.87
Current children cumulated vsize (KiB) 14144

[startup+49.5059 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1323272/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=14144 CPUtime=49.47
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 3408 0 0 0 4945 2 0 0 25 0 1 120000 93324508 14483456 3294 1992294400 134512640 135224549 4294956224 18446744073709551615 134595278 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 3536 3294 93 173 0 3361 0
Current children cumulated CPU time (s) 49.47
Current children cumulated vsize (KiB) 14144

[startup+50.3011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1323272/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=14144 CPUtime=50.27
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 3409 0 0 0 5025 2 0 0 25 0 1 120000 93324508 14483456 3295 1992294400 134512640 135224549 4294956224 18446744073709551615 134595278 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 3536 3295 93 173 0 3361 0
Current children cumulated CPU time (s) 50.27
Current children cumulated vsize (KiB) 14144

[startup+50.7011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1323272/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=14144 CPUtime=50.67
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 3409 0 0 0 5065 2 0 0 25 0 1 120000 93324508 14483456 3295 1992294400 134512640 135224549 4294956224 18446744073709551615 134595278 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 3536 3295 93 173 0 3361 0
Current children cumulated CPU time (s) 50.67
Current children cumulated vsize (KiB) 14144

[startup+50.9012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26047
/proc/meminfo: memFree=1323272/2055920 swapFree=4181900/4192956
[pid=26046] ppid=26044 vsize=14144 CPUtime=50.87
/proc/26046/stat : 26046 (CirCUs) R 26044 26046 25786 0 -1 4194304 3409 0 0 0 5085 2 0 0 25 0 1 120000 93324508 14483456 3295 1992294400 134512640 135224549 4294956224 18446744073709551615 134632577 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26046/statm: 3536 3295 93 173 0 3361 0
Current children cumulated CPU time (s) 50.87
Current children cumulated vsize (KiB) 14144

Child status: 0
Real time (s): 50.9436
CPU time (s): 50.9193
CPU user time (s): 50.8943
CPU system time (s): 0.024996
CPU usage (%): 99.9522
Max. virtual memory (cumulated for all children) (KiB): 14144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 50.8943
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3413
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= 87

runsolver used 0.039993 second user time and 0.119981 second system time

The end

Launcher Data 

Begin job on node44 at 2009-04-25 11:49:25
IDJOB=1720141
IDBENCH=69594
IDSOLVER=544
FILE ID=node44/1720141-1240652965
PBS_JOBID= 9186475
Free space on /tmp= 66216 MiB

SOLVER NAME= CircUs 2009-03-23
BENCH NAME= SAT_RACE08/cnf/velev-engi-uns-1.0-4nd.cnf
COMMAND LINE= HOME/CirCUs BENCHNAME -t TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1720141-1240652965/watcher-1720141-1240652965 -o /tmp/evaluation-result-1720141-1240652965/solver-1720141-1240652965 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/CirCUs HOME/instance-1720141-1240652965.cnf -t 1200

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

MD5SUM BENCH= 700f8e86139a93fca212e22efa0f7d2b
RANDOM SEED=1592963820

node44.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		: 3000.267
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	: 5931.00
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		: 3000.267
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:       1336752 kB
Buffers:         52128 kB
Cached:         606376 kB
SwapCached:       4904 kB
Active:          65820 kB
Inactive:       600628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1336752 kB
SwapTotal:     4192956 kB
SwapFree:      4181900 kB
Dirty:            2144 kB
Writeback:           0 kB
Mapped:          14020 kB
Slab:            38648 kB
Committed_AS:   353156 kB
PageTables:       1400 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= 66216 MiB
End job on node44 at 2009-04-25 11:50:16