Trace number 311145

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
SAT7 2007-02-08UNSAT 22.3086 22.3168

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S834531569-01-UNSAT.cnf
MD5SUM4899d6582d732ef8e47904f161487c51
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.72943
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c Starting solver ...
0.00/0.03	c Restarting after 100 conflicts
0.00/0.04	c Restarting after 251 conflicts
0.00/0.07	c Restarting after 477 conflicts
0.10/0.11	c Restarting after 814 conflicts
0.10/0.17	c Restarting after 1320 conflicts
0.20/0.26	c Restarting after 2080 conflicts
0.41/0.42	c Restarting after 3219 conflicts
0.61/0.65	c Restarting after 4927 conflicts
0.92/1.01	c Restarting after 7489 conflicts
1.53/1.56	c Restarting after 11333 conflicts
2.35/2.39	c Restarting after 17099 conflicts
3.58/3.68	c Restarting after 25749 conflicts
5.63/5.65	c Restarting after 38723 conflicts
8.60/8.69	c Restarting after 58187 conflicts
13.30/13.38	c Restarting after 87380 conflicts
20.47/20.56	c Restarting after 131170 conflicts
22.21/22.31	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node34/watcher-311145-1172564573 -o ROOT/results/node34/solver-311145-1172564573 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311145-1172564573/sat7_bin /tmp/evaluation/311145-1172564573/instance-311145-1172564573.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.99 0.98 0.99 3/64 23434
/proc/meminfo: memFree=1090968/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=1256 CPUtime=0
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 163 0 0 0 0 0 0 0 18 0 1 0 250221145 1286144 146 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 135013975 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 314 147 87 220 0 91 0

[startup+0.107081 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 23434
/proc/meminfo: memFree=1090968/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=1660 CPUtime=0.1
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 265 0 0 0 10 0 0 0 18 0 1 0 250221145 1699840 248 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134529366 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 415 248 95 220 0 192 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1660

[startup+0.515113 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 23434
/proc/meminfo: memFree=1090968/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=2176 CPUtime=0.51
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 333 0 0 0 51 0 0 0 21 0 1 0 250221145 2228224 316 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134531650 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 544 316 95 220 0 321 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2176

[startup+1.33518 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1089936/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=2176 CPUtime=1.33
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 364 0 0 0 133 0 0 0 25 0 1 0 250221145 2228224 347 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 135029249 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 544 347 95 220 0 321 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2176

[startup+2.97131 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1089680/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3204 CPUtime=2.96
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 408 0 0 0 296 0 0 0 25 0 1 0 250221145 3280896 391 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 801 391 95 220 0 578 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 3204

[startup+6.25157 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1089360/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3204 CPUtime=6.24
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 461 0 0 0 624 0 0 0 25 0 1 0 250221145 3280896 444 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 801 444 95 220 0 578 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 3204

[startup+12.7031 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1089040/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3336 CPUtime=12.69
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 530 0 0 0 1269 0 0 0 25 0 1 0 250221145 3416064 513 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 834 513 95 220 0 611 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3336

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

[startup+13.1121 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1089040/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3336 CPUtime=13.1
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 534 0 0 0 1310 0 0 0 25 0 1 0 250221145 3416064 517 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134536713 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 834 517 95 220 0 611 0
Current children cumulated CPU time (s) 13.1
Current children cumulated vsize (KiB) 3336

[startup+16.3914 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1088912/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3336 CPUtime=16.38
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 565 0 0 0 1638 0 0 0 25 0 1 0 250221145 3416064 548 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134535949 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 834 548 95 220 0 611 0
Current children cumulated CPU time (s) 16.38
Current children cumulated vsize (KiB) 3336

[startup+19.6676 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1088848/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3336 CPUtime=19.65
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 579 0 0 0 1965 0 0 0 25 0 1 0 250221145 3416064 562 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134533771 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 834 562 95 220 0 611 0
Current children cumulated CPU time (s) 19.65
Current children cumulated vsize (KiB) 3336

[startup+21.3038 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1088848/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3336 CPUtime=21.29
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 589 0 0 0 2129 0 0 0 25 0 1 0 250221145 3416064 572 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532542 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 834 572 95 220 0 611 0
Current children cumulated CPU time (s) 21.29
Current children cumulated vsize (KiB) 3336

[startup+21.7158 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1088784/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3336 CPUtime=21.7
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 590 0 0 0 2170 0 0 0 25 0 1 0 250221145 3416064 573 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134578894 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 834 573 95 220 0 611 0
Current children cumulated CPU time (s) 21.7
Current children cumulated vsize (KiB) 3336

[startup+22.1238 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1088784/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3336 CPUtime=22.11
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 591 0 0 0 2211 0 0 0 25 0 1 0 250221145 3416064 574 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134533257 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 834 574 95 220 0 611 0
Current children cumulated CPU time (s) 22.11
Current children cumulated vsize (KiB) 3336

[startup+22.2259 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 23435
/proc/meminfo: memFree=1088784/2055920 swapFree=4183908/4192956
[pid=23434] ppid=23432 vsize=3336 CPUtime=22.21
/proc/23434/stat : 23434 (sat7_bin) R 23432 23434 23146 0 -1 4194304 591 0 0 0 2221 0 0 0 25 0 1 0 250221145 3416064 574 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134529290 0 0 4096 0 0 0 0 17 1 0 0
/proc/23434/statm: 834 574 95 220 0 611 0
Current children cumulated CPU time (s) 22.21
Current children cumulated vsize (KiB) 3336

Child status: 20
Real time (s): 22.3168
CPU time (s): 22.3086
CPU user time (s): 22.3036
CPU system time (s): 0.004999
CPU usage (%): 99.9634
Max. virtual memory (cumulated for all children) (KiB): 3336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.3036
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 591
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= 8
involuntary context switches= 36

runsolver used 0.021996 second user time and 0.044993 second system time

The end

Launcher Data (download as text)

Begin job on node34 on Tue Feb 27 08:22:53 UTC 2007

IDJOB= 311145
IDBENCH= 20306
IDSOLVER= 101
FILE ID= node34/311145-1172564573

PBS_JOBID= 3971891

Free space on /tmp= 66561 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S834531569-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/311145-1172564573/sat7_bin /tmp/evaluation/311145-1172564573/instance-311145-1172564573.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-311145-1172564573 -o ROOT/results/node34/solver-311145-1172564573 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311145-1172564573/sat7_bin /tmp/evaluation/311145-1172564573/instance-311145-1172564573.cnf            

META MD5SUM SOLVER= 499b432f7af158d8586c91b2e490220f
MD5SUM BENCH=  4899d6582d732ef8e47904f161487c51

RANDOM SEED= 923408434

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node34.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:       1091440 kB
Buffers:         23748 kB
Cached:         888720 kB
SwapCached:       3220 kB
Active:          48208 kB
Inactive:       873912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1091440 kB
SwapTotal:     4192956 kB
SwapFree:      4183908 kB
Dirty:            1196 kB
Writeback:           0 kB
Mapped:          15220 kB
Slab:            28464 kB
Committed_AS:   566596 kB
PageTables:       1396 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= 66561 MiB

End job on node34 on Tue Feb 27 08:23:16 UTC 2007