Trace number 358937

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
PBS4 2007-03-23UNSAT 12.4731 12.4778

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111224059.opb
MD5SUMa18d21f73a1079a5fbd022c0c033271e
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.012997
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1314
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/358937-1176918568/instance-358937-1176918568.opb ......
12.39/12.47	c done parsing opb.
12.39/12.47	s UNSATISFIABLE
12.39/12.47	c Total Run Time					12.4661

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358937-1176918568/instance-358937-1176918568.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node69/watcher-358937-1176918568 -o ROOT/results/node69/solver-358937-1176918568 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358937-1176918568/PBS4 /tmp/evaluation/358937-1176918568/instance-358937-1176918568.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 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: 0.97 0.95 0.94 3/64 27182
/proc/meminfo: memFree=1809884/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=1320 CPUtime=0
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 167846243 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 330 125 92 219 0 107 0

[startup+0.074156 s]
/proc/loadavg: 0.97 0.95 0.94 3/64 27182
/proc/meminfo: memFree=1809884/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=1456 CPUtime=0.07
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 187 0 0 0 7 0 0 0 18 0 1 0 167846243 1490944 169 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596339 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 364 170 92 219 0 141 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1456

[startup+0.101159 s]
/proc/loadavg: 0.97 0.95 0.94 3/64 27182
/proc/meminfo: memFree=1809884/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=1456 CPUtime=0.09
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 212 0 0 0 9 0 0 0 18 0 1 0 167846243 1490944 194 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 364 194 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301191 s]
/proc/loadavg: 0.97 0.95 0.94 3/64 27182
/proc/meminfo: memFree=1809884/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=2384 CPUtime=0.29
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 319 0 0 0 29 0 0 0 19 0 1 0 167846243 2441216 301 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 596 301 93 219 0 373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2384

[startup+0.702257 s]
/proc/loadavg: 0.97 0.95 0.94 3/64 27182
/proc/meminfo: memFree=1809884/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=3604 CPUtime=0.69
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 496 0 0 0 69 0 0 0 22 0 1 0 167846243 3690496 478 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 901 478 93 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.50139 s]
/proc/loadavg: 0.97 0.95 0.94 2/65 27183
/proc/meminfo: memFree=1807956/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=3928 CPUtime=1.49
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 839 0 0 0 149 0 0 0 25 0 1 0 167846243 4022272 772 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 982 772 94 219 0 759 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3928

[startup+3.10165 s]
/proc/loadavg: 0.97 0.95 0.94 2/65 27183
/proc/meminfo: memFree=1806292/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=6896 CPUtime=3.09
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 1370 0 0 0 308 1 0 0 25 0 1 0 167846243 7061504 1206 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 1724 1206 94 219 0 1501 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6896

[startup+6.30117 s]
/proc/loadavg: 0.97 0.95 0.94 2/65 27183
/proc/meminfo: memFree=1804116/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=7588 CPUtime=6.29
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 1817 0 0 0 627 2 0 0 25 0 1 0 167846243 7770112 1653 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 1897 1653 94 219 0 1674 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7588

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

[startup+9.50169 s]
/proc/loadavg: 0.97 0.95 0.94 2/65 27183
/proc/meminfo: memFree=1802964/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=8776 CPUtime=9.49
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 2193 0 0 0 945 4 0 0 25 0 1 0 167846243 8986624 1836 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 2194 1836 94 219 0 1971 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 8776

[startup+11.1029 s]
/proc/loadavg: 0.98 0.95 0.94 2/65 27183
/proc/meminfo: memFree=1802260/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=9068 CPUtime=11.09
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 2315 0 0 0 1104 5 0 0 25 0 1 0 167846243 9285632 1958 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134563062 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 2267 1958 94 219 0 2044 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 9068

[startup+11.9011 s]
/proc/loadavg: 0.98 0.95 0.94 2/65 27183
/proc/meminfo: memFree=1802260/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=9204 CPUtime=11.89
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 2356 0 0 0 1184 5 0 0 25 0 1 0 167846243 9424896 1999 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134548030 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 2301 1999 94 219 0 2078 0
Current children cumulated CPU time (s) 11.89
Current children cumulated vsize (KiB) 9204

[startup+12.3011 s]
/proc/loadavg: 0.98 0.95 0.94 2/65 27183
/proc/meminfo: memFree=1801876/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=9348 CPUtime=12.29
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 2404 0 0 0 1224 5 0 0 25 0 1 0 167846243 9572352 2047 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 2337 2047 94 219 0 2114 0
Current children cumulated CPU time (s) 12.29
Current children cumulated vsize (KiB) 9348

[startup+12.4012 s]
/proc/loadavg: 0.98 0.95 0.94 2/65 27183
/proc/meminfo: memFree=1801876/2055920 swapFree=4182908/4192956
[pid=27182] ppid=27180 vsize=9348 CPUtime=12.39
/proc/27182/stat : 27182 (PBS4) R 27180 27182 26441 0 -1 4194304 2406 0 0 0 1234 5 0 0 25 0 1 0 167846243 9572352 2049 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27182/statm: 2337 2049 94 219 0 2114 0
Current children cumulated CPU time (s) 12.39
Current children cumulated vsize (KiB) 9348

Child status: 0
Real time (s): 12.4778
CPU time (s): 12.4731
CPU user time (s): 12.4161
CPU system time (s): 0.056991
CPU usage (%): 99.962
Max. virtual memory (cumulated for all children) (KiB): 9348

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.4161
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= 2423
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= 13

runsolver used 0.012998 second user time and 0.027995 second system time

The end

Launcher Data (download as text)

Begin job on node69 on Wed Apr 18 17:49:28 UTC 2007

IDJOB= 358937
IDBENCH= 1250
IDSOLVER= 157
FILE ID= node69/358937-1176918568

PBS_JOBID= 4605636

Free space on /tmp= 66497 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111224059.opb
COMMAND LINE= /tmp/evaluation/358937-1176918568/PBS4 /tmp/evaluation/358937-1176918568/instance-358937-1176918568.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node69/convwatcher-358937-1176918568 -o ROOT/results/node69/conversion-358937-1176918568 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358937-1176918568/instance-358937-1176918568.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node69/watcher-358937-1176918568 -o ROOT/results/node69/solver-358937-1176918568 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358937-1176918568/PBS4 /tmp/evaluation/358937-1176918568/instance-358937-1176918568.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  a18d21f73a1079a5fbd022c0c033271e

RANDOM SEED= 900028656

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node69.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		: 3000.264
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		: 3000.264
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:       1810420 kB
Buffers:         10052 kB
Cached:         173980 kB
SwapCached:       3580 kB
Active:          68340 kB
Inactive:       124972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1810420 kB
SwapTotal:     4192956 kB
SwapFree:      4182908 kB
Dirty:            1140 kB
Writeback:           0 kB
Mapped:          15476 kB
Slab:            38176 kB
Committed_AS:  1492408 kB
PageTables:       1472 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= 66497 MiB

End job on node69 on Wed Apr 18 17:49:41 UTC 2007