Trace number 426547

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 2007-02-08SAT 4.34734 4.35008

General information on the benchmark

Namerandom/OnTreshold/5SAT/v70/
unif-k5-r21.3-v70-c1491-S2081149830-10.SAT.shuffled.cnf
MD5SUMd0cf7e3234604bad410cc03581b4891e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009998
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses1491
Sum of the clauses size7455
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51491
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Starting solver ...
0.00/0.01	c Restarting after 100 conflicts
0.00/0.01	c Restarting after 251 conflicts
0.00/0.02	c Restarting after 477 conflicts
0.00/0.03	c Restarting after 814 conflicts
0.00/0.05	c Restarting after 1321 conflicts
0.05/0.07	c Restarting after 2082 conflicts
0.10/0.11	c Restarting after 3221 conflicts
0.10/0.17	c Restarting after 4929 conflicts
0.20/0.27	c Restarting after 7493 conflicts
0.40/0.41	c Restarting after 11337 conflicts
0.60/0.63	c Restarting after 17105 conflicts
0.90/0.97	c Restarting after 25754 conflicts
1.40/1.49	c Restarting after 38729 conflicts
2.29/2.31	c Restarting after 58190 conflicts
3.49/3.55	c Restarting after 87382 conflicts
4.30/4.34	s SATISFIABLE
4.30/4.34	v -1 -2 -3 -4 5 6 -7 -8 -9 -10 11 12 -13 -14 15 -16 17 -18 -19 -20 -21 22 -23 -24 -25 26 -27 28 -29 -30 31 -32 -33 34 35 36 37 38 -39 40 41 42 -43 44 45 -46 47 48 -49 -50 -51 -52 -53 54 55 56 57 -58 59 -60 -61 62 -63 64 -65 66 67 68 -69 -70 
4.30/4.34	v 0

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/node7/watcher-426547-1177826539 -o ROOT/results/node7/solver-426547-1177826539 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/426547-1177826539/sat7_bin /tmp/evaluation/426547-1177826539/instance-426547-1177826539.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: 0.85 0.95 0.98 3/77 14178
/proc/meminfo: memFree=1635952/2055920 swapFree=4156360/4192956
[pid=14178] ppid=14176 vsize=1064 CPUtime=0
/proc/14178/stat : 14178 (sat7_bin) R 14176 14178 13601 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 258691521 1089536 113 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134547035 0 0 4096 0 0 0 0 17 1 0 0
/proc/14178/statm: 266 113 87 220 0 43 0

[startup+0.058878 s]
/proc/loadavg: 0.85 0.95 0.98 3/77 14178
/proc/meminfo: memFree=1635952/2055920 swapFree=4156360/4192956
[pid=14178] ppid=14176 vsize=1200 CPUtime=0.05
/proc/14178/stat : 14178 (sat7_bin) R 14176 14178 13601 0 -1 4194304 185 0 0 0 5 0 0 0 18 0 1 0 258691521 1228800 169 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134530079 0 0 4096 0 0 0 0 17 1 0 0
/proc/14178/statm: 300 169 95 220 0 77 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1200

[startup+0.102883 s]
/proc/loadavg: 0.85 0.95 0.98 3/77 14178
/proc/meminfo: memFree=1635952/2055920 swapFree=4156360/4192956
[pid=14178] ppid=14176 vsize=1460 CPUtime=0.1
/proc/14178/stat : 14178 (sat7_bin) R 14176 14178 13601 0 -1 4194304 191 0 0 0 10 0 0 0 18 0 1 0 258691521 1495040 175 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532381 0 0 4096 0 0 0 0 17 1 0 0
/proc/14178/statm: 365 175 95 220 0 142 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1460

[startup+0.301903 s]
/proc/loadavg: 0.85 0.95 0.98 3/77 14178
/proc/meminfo: memFree=1635952/2055920 swapFree=4156360/4192956
[pid=14178] ppid=14176 vsize=1460 CPUtime=0.3
/proc/14178/stat : 14178 (sat7_bin) R 14176 14178 13601 0 -1 4194304 209 0 0 0 30 0 0 0 19 0 1 0 258691521 1495040 193 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/14178/statm: 365 193 95 220 0 142 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1460

[startup+0.702946 s]
/proc/loadavg: 0.85 0.95 0.98 3/77 14178
/proc/meminfo: memFree=1635952/2055920 swapFree=4156360/4192956
[pid=14178] ppid=14176 vsize=1592 CPUtime=0.7
/proc/14178/stat : 14178 (sat7_bin) R 14176 14178 13601 0 -1 4194304 228 0 0 0 70 0 0 0 22 0 1 0 258691521 1630208 212 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532552 0 0 4096 0 0 0 0 17 1 0 0
/proc/14178/statm: 398 212 95 220 0 175 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1592

[startup+1.50103 s]
/proc/loadavg: 0.85 0.95 0.98 2/78 14179
/proc/meminfo: memFree=1635432/2055920 swapFree=4156360/4192956
[pid=14178] ppid=14176 vsize=1592 CPUtime=1.49
/proc/14178/stat : 14178 (sat7_bin) R 14176 14178 13601 0 -1 4194304 242 0 0 0 149 0 0 0 25 0 1 0 258691521 1630208 226 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/14178/statm: 398 226 95 220 0 175 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1592

[startup+3.1012 s]
/proc/loadavg: 0.85 0.95 0.98 2/78 14179
/proc/meminfo: memFree=1635176/2055920 swapFree=4156360/4192956
[pid=14178] ppid=14176 vsize=1592 CPUtime=3.09
/proc/14178/stat : 14178 (sat7_bin) R 14176 14178 13601 0 -1 4194304 273 0 0 0 309 0 0 0 25 0 1 0 258691521 1630208 257 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532571 0 0 4096 0 0 0 0 17 1 0 0
/proc/14178/statm: 398 257 95 220 0 175 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1592

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

[startup+3.90128 s]
/proc/loadavg: 0.85 0.95 0.98 2/78 14179
/proc/meminfo: memFree=1635112/2055920 swapFree=4156360/4192956
[pid=14178] ppid=14176 vsize=1724 CPUtime=3.89
/proc/14178/stat : 14178 (sat7_bin) R 14176 14178 13601 0 -1 4194304 284 0 0 0 389 0 0 0 25 0 1 0 258691521 1765376 268 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134533251 0 0 4096 0 0 0 0 17 1 0 0
/proc/14178/statm: 431 268 95 220 0 208 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 1724

[startup+4.30132 s]
/proc/loadavg: 0.86 0.95 0.98 3/78 14179
/proc/meminfo: memFree=1635048/2055920 swapFree=4156360/4192956
[pid=14178] ppid=14176 vsize=1724 CPUtime=4.3
/proc/14178/stat : 14178 (sat7_bin) R 14176 14178 13601 0 -1 4194304 289 0 0 0 430 0 0 0 25 0 1 0 258691521 1765376 273 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532433 0 0 4096 0 0 0 0 17 1 0 0
/proc/14178/statm: 431 273 95 220 0 208 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 1724

Child status: 10
Real time (s): 4.35008
CPU time (s): 4.34734
CPU user time (s): 4.34634
CPU system time (s): 0.000999
CPU usage (%): 99.937
Max. virtual memory (cumulated for all children) (KiB): 1724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.34634
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 291
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= 5

runsolver used 0.002999 second user time and 0.018997 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Sun Apr 29 06:02:19 UTC 2007

IDJOB= 426547
IDBENCH= 19832
IDSOLVER= 183
FILE ID= node7/426547-1177826539

PBS_JOBID= 4718266

Free space on /tmp= 66563 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v70/unif-k5-r21.3-v70-c1491-S2081149830-10.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426547-1177826539/sat7_bin /tmp/evaluation/426547-1177826539/instance-426547-1177826539.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-426547-1177826539 -o ROOT/results/node7/solver-426547-1177826539 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/426547-1177826539/sat7_bin /tmp/evaluation/426547-1177826539/instance-426547-1177826539.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  d0cf7e3234604bad410cc03581b4891e

RANDOM SEED= 988100572

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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		: 3000.231
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		: 3000.231
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:       1636360 kB
Buffers:         42980 kB
Cached:         302840 kB
SwapCached:      17164 kB
Active:         227768 kB
Inactive:       142540 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1636360 kB
SwapTotal:     4192956 kB
SwapFree:      4156360 kB
Dirty:            1328 kB
Writeback:           0 kB
Mapped:          30040 kB
Slab:            34700 kB
Committed_AS:  8963008 kB
PageTables:       1860 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= 66563 MiB

End job on node7 on Sun Apr 29 06:02:24 UTC 2007