Trace number 357971

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 35.4316 35.4432

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111223220.opb
MD5SUMc0dca940756ea4be5f7b1224240a8526
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 benchmark0.089985
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 1230
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/357971-1176910367/instance-357971-1176910367.opb ......
35.38/35.43	c done parsing opb.
35.38/35.43	s UNSATISFIABLE
35.38/35.44	c Total Run Time					35.4246

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/357971-1176910367/instance-357971-1176910367.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/node55/watcher-357971-1176910367 -o ROOT/results/node55/solver-357971-1176910367 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/357971-1176910367/PBS4 /tmp/evaluation/357971-1176910367/instance-357971-1176910367.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: 0.94 1.03 1.00 3/64 31546
/proc/meminfo: memFree=1696324/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=1320 CPUtime=0
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 138946701 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 330 125 92 219 0 107 0

[startup+0.0619699 s]
/proc/loadavg: 0.94 1.03 1.00 3/64 31546
/proc/meminfo: memFree=1696324/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=1456 CPUtime=0.05
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 190 0 0 0 5 0 0 0 18 0 1 0 138946701 1490944 172 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 364 172 92 219 0 141 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1456

[startup+0.101972 s]
/proc/loadavg: 0.94 1.03 1.00 3/64 31546
/proc/meminfo: memFree=1696324/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=1456 CPUtime=0.09
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 218 0 0 0 9 0 0 0 18 0 1 0 138946701 1490944 200 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 364 200 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301991 s]
/proc/loadavg: 0.94 1.03 1.00 3/64 31546
/proc/meminfo: memFree=1696324/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=2384 CPUtime=0.29
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 335 0 0 0 29 0 0 0 19 0 1 0 138946701 2441216 317 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134590670 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 596 318 93 219 0 373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2384

[startup+0.701028 s]
/proc/loadavg: 0.94 1.03 1.00 3/64 31546
/proc/meminfo: memFree=1696324/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=3604 CPUtime=0.69
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 543 0 0 0 69 0 0 0 22 0 1 0 138946701 3690496 525 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 901 525 93 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.5011 s]
/proc/loadavg: 0.94 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1694204/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=3940 CPUtime=1.49
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 864 0 0 0 148 1 0 0 25 0 1 0 138946701 4034560 797 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 985 797 94 219 0 762 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3940

[startup+3.10125 s]
/proc/loadavg: 0.94 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1692796/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=6768 CPUtime=3.09
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 1415 0 0 0 307 2 0 0 25 0 1 0 138946701 6930432 1251 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 1692 1251 94 219 0 1469 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6768

[startup+6.30155 s]
/proc/loadavg: 0.94 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1689668/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=11400 CPUtime=6.28
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 2040 0 0 0 626 2 0 0 25 0 1 0 138946701 11673600 1876 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 2850 1876 94 219 0 2627 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 11400

[startup+12.7011 s]
/proc/loadavg: 0.95 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1687044/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=13288 CPUtime=12.68
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 2744 0 0 0 1263 5 0 0 25 0 1 0 138946701 13606912 2387 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 3322 2387 94 219 0 3099 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13288

[startup+25.5013 s]
/proc/loadavg: 0.96 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1682500/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=16276 CPUtime=25.48
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 4272 0 0 0 2539 9 0 0 25 0 1 0 138946701 16666624 3530 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 4069 3530 94 219 0 3846 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16276

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

[startup+31.9059 s]
/proc/loadavg: 0.96 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1681284/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=17172 CPUtime=31.88
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 4542 0 0 0 3178 10 0 0 25 0 1 0 138946701 17584128 3800 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 4293 3800 94 219 0 4070 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 17172

[startup+33.5021 s]
/proc/loadavg: 0.96 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1681156/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=17172 CPUtime=33.48
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 4579 0 0 0 3337 11 0 0 25 0 1 0 138946701 17584128 3837 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547071 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 4293 3837 94 219 0 4070 0
Current children cumulated CPU time (s) 33.48
Current children cumulated vsize (KiB) 17172

[startup+34.3012 s]
/proc/loadavg: 0.96 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1680836/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=17304 CPUtime=34.28
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 4659 0 0 0 3417 11 0 0 25 0 1 0 138946701 17719296 3917 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547091 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 4326 3917 94 219 0 4103 0
Current children cumulated CPU time (s) 34.28
Current children cumulated vsize (KiB) 17304

[startup+35.1012 s]
/proc/loadavg: 0.96 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1680772/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=17304 CPUtime=35.09
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 4669 0 0 0 3497 12 0 0 25 0 1 0 138946701 17719296 3927 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 4326 3927 94 219 0 4103 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 17304

[startup+35.3013 s]
/proc/loadavg: 0.96 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1680772/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=17304 CPUtime=35.28
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 4671 0 0 0 3516 12 0 0 25 0 1 0 138946701 17719296 3929 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 4326 3929 94 219 0 4103 0
Current children cumulated CPU time (s) 35.28
Current children cumulated vsize (KiB) 17304

[startup+35.4013 s]
/proc/loadavg: 0.96 1.03 1.00 2/65 31547
/proc/meminfo: memFree=1680772/2055920 swapFree=4184496/4192956
[pid=31546] ppid=31544 vsize=17304 CPUtime=35.38
/proc/31546/stat : 31546 (PBS4) R 31544 31546 30842 0 -1 4194304 4672 0 0 0 3526 12 0 0 25 0 1 0 138946701 17719296 3930 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31546/statm: 4326 3930 94 219 0 4103 0
Current children cumulated CPU time (s) 35.38
Current children cumulated vsize (KiB) 17304

Child status: 0
Real time (s): 35.4432
CPU time (s): 35.4316
CPU user time (s): 35.3076
CPU system time (s): 0.123981
CPU usage (%): 99.9673
Max. virtual memory (cumulated for all children) (KiB): 17304

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 35.3076
system time used= 0.123981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4687
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= 7
involuntary context switches= 36

runsolver used 0.023996 second user time and 0.081987 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Wed Apr 18 15:32:47 UTC 2007

IDJOB= 357971
IDBENCH= 1181
IDSOLVER= 157
FILE ID= node55/357971-1176910367

PBS_JOBID= 4595182

Free space on /tmp= 66354 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111223220.opb
COMMAND LINE= /tmp/evaluation/357971-1176910367/PBS4 /tmp/evaluation/357971-1176910367/instance-357971-1176910367.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node55/convwatcher-357971-1176910367 -o ROOT/results/node55/conversion-357971-1176910367 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/357971-1176910367/instance-357971-1176910367.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-357971-1176910367 -o ROOT/results/node55/solver-357971-1176910367 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/357971-1176910367/PBS4 /tmp/evaluation/357971-1176910367/instance-357971-1176910367.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  c0dca940756ea4be5f7b1224240a8526

RANDOM SEED= 377334070

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.216
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		: 3000.216
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:       1696796 kB
Buffers:         12404 kB
Cached:         266444 kB
SwapCached:       2196 kB
Active:          35504 kB
Inactive:       253228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1696796 kB
SwapTotal:     4192956 kB
SwapFree:      4184496 kB
Dirty:            1140 kB
Writeback:           0 kB
Mapped:          16356 kB
Slab:            56464 kB
Committed_AS:  1068884 kB
PageTables:       1380 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= 66354 MiB

End job on node55 on Wed Apr 18 15:33:22 UTC 2007