Trace number 2682502

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
PB/CT 0.1 fixedUNSAT 23.4144 23.4191

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110976730.opb
MD5SUM43d4c8496523b3f19caabfccdbd3abfa
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.135979
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 1183
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 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.00	c constraints 71/0 clauses 30/0 units 0
0.00/0.00	c vars 169
23.39/23.40	c 21.1498 8.03906 948 119788
23.39/23.41	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682502-1277475658/watcher-2682502-1277475658 -o /tmp/evaluation-result-2682502-1277475658/solver-2682502-1277475658 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682502-1277475658.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.39 0.09 0.03 3/107 23435
/proc/meminfo: memFree=1754668/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=3444 CPUtime=0
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 555 0 0 0 0 0 0 0 20 0 1 0 121221547 3526656 475 1992294400 134512640 136421960 4292022272 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 861 477 193 467 0 392 0

[startup+0.103276 s]
/proc/loadavg: 0.39 0.09 0.03 3/107 23435
/proc/meminfo: memFree=1754668/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=7336 CPUtime=0.1
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1545 0 0 0 9 1 0 0 20 0 1 0 121221547 7512064 1465 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 1834 1465 213 467 0 1365 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 7336

[startup+0.201284 s]
/proc/loadavg: 0.39 0.09 0.03 3/107 23435
/proc/meminfo: memFree=1754668/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=7464 CPUtime=0.19
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1569 0 0 0 18 1 0 0 20 0 1 0 121221547 7643136 1489 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 1866 1489 213 467 0 1397 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7464

[startup+0.301293 s]
/proc/loadavg: 0.39 0.09 0.03 3/107 23435
/proc/meminfo: memFree=1754668/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=7592 CPUtime=0.29
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1594 0 0 0 26 3 0 0 20 0 1 0 121221547 7774208 1514 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 1898 1514 213 467 0 1429 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7592

[startup+0.701328 s]
/proc/loadavg: 0.39 0.09 0.03 3/107 23435
/proc/meminfo: memFree=1754668/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=7592 CPUtime=0.69
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1616 0 0 0 62 7 0 0 21 0 1 0 121221547 7774208 1536 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 1898 1536 213 467 0 1429 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7592

[startup+1.5014 s]
/proc/loadavg: 0.39 0.09 0.03 2/108 23436
/proc/meminfo: memFree=1749204/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=7720 CPUtime=1.5
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1639 0 0 0 135 15 0 0 23 0 1 0 121221547 7905280 1559 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 1930 1559 213 467 0 1461 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 7720

[startup+3.10154 s]
/proc/loadavg: 0.44 0.11 0.03 2/108 23436
/proc/meminfo: memFree=1748708/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=7852 CPUtime=3.09
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1682 0 0 0 279 30 0 0 25 0 1 0 121221547 8040448 1602 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 1963 1602 213 467 0 1494 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7852

[startup+6.30083 s]
/proc/loadavg: 0.44 0.11 0.03 2/108 23436
/proc/meminfo: memFree=1748708/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=7980 CPUtime=6.29
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1704 0 0 0 567 62 0 0 25 0 1 0 121221547 8171520 1624 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 1995 1624 213 467 0 1526 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7980

[startup+12.7004 s]
/proc/loadavg: 0.53 0.14 0.04 2/108 23436
/proc/meminfo: memFree=1748468/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=8108 CPUtime=12.69
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1734 0 0 0 1145 124 0 0 25 0 1 0 121221547 8302592 1654 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 2027 1654 213 467 0 1558 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8108

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

[startup+12.8004 s]
/proc/loadavg: 0.53 0.14 0.04 2/108 23436
/proc/meminfo: memFree=1748468/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=8108 CPUtime=12.79
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1734 0 0 0 1154 125 0 0 25 0 1 0 121221547 8302592 1654 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 2027 1654 213 467 0 1558 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 8108

[startup+19.201 s]
/proc/loadavg: 0.56 0.15 0.05 2/108 23436
/proc/meminfo: memFree=1748344/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=8228 CPUtime=19.19
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1747 0 0 0 1733 186 0 0 25 0 1 0 121221547 8425472 1667 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 2057 1667 213 467 0 1588 0
Current children cumulated CPU time (s) 19.19
Current children cumulated vsize (KiB) 8228

[startup+20.8011 s]
/proc/loadavg: 0.56 0.15 0.05 2/108 23438
/proc/meminfo: memFree=1748344/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=8228 CPUtime=20.79
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1749 0 0 0 1878 201 0 0 25 0 1 0 121221547 8425472 1669 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 2057 1669 213 467 0 1588 0
Current children cumulated CPU time (s) 20.79
Current children cumulated vsize (KiB) 8228

[startup+22.4003 s]
/proc/loadavg: 0.60 0.17 0.05 2/108 23438
/proc/meminfo: memFree=1748220/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=8228 CPUtime=22.39
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1749 0 0 0 2024 215 0 0 25 0 1 0 121221547 8425472 1669 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 2057 1669 213 467 0 1588 0
Current children cumulated CPU time (s) 22.39
Current children cumulated vsize (KiB) 8228

[startup+23.2083 s]
/proc/loadavg: 0.60 0.17 0.05 2/108 23438
/proc/meminfo: memFree=1748220/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=8228 CPUtime=23.2
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1758 0 0 0 2097 223 0 0 25 0 1 0 121221547 8425472 1678 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 2057 1678 213 467 0 1588 0
Current children cumulated CPU time (s) 23.2
Current children cumulated vsize (KiB) 8228

[startup+23.4014 s]
/proc/loadavg: 0.60 0.17 0.05 2/108 23438
/proc/meminfo: memFree=1748220/2059040 swapFree=4139780/4192956
[pid=23435] ppid=23433 vsize=8228 CPUtime=23.39
/proc/23435/stat : 23435 (pbct) R 23433 23435 23356 0 -1 4202496 1758 0 0 0 2114 225 0 0 25 0 1 0 121221547 8425472 1678 1992294400 134512640 136421960 4292022272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23435/statm: 2057 1678 213 467 0 1588 0
Current children cumulated CPU time (s) 23.39
Current children cumulated vsize (KiB) 8228

Child status: 0
Real time (s): 23.4191
CPU time (s): 23.4144
CPU user time (s): 21.1628
CPU system time (s): 2.25166
CPU usage (%): 99.9802
Max. virtual memory (cumulated for all children) (KiB): 8236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.1628
system time used= 2.25166
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1784
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= 1
involuntary context switches= 68

runsolver used 0.033994 second user time and 0.124981 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-25 16:20:58
IDJOB=2682502
IDBENCH=1240
IDSOLVER=1192
FILE ID=node025/2682502-1277475658
PBS_JOBID= 11190517
Free space on /tmp= 62308 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110976730.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682502-1277475658/watcher-2682502-1277475658 -o /tmp/evaluation-result-2682502-1277475658/solver-2682502-1277475658 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682502-1277475658.opb

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

MD5SUM BENCH= 43d4c8496523b3f19caabfccdbd3abfa
RANDOM SEED=240930374

node025.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.242
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.48
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		: 3000.242
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1755196 kB
Buffers:         42684 kB
Cached:         156800 kB
SwapCached:       5912 kB
Active:          73956 kB
Inactive:       138952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1755196 kB
SwapTotal:     4192956 kB
SwapFree:      4139780 kB
Dirty:            2072 kB
Writeback:           0 kB
AnonPages:       12052 kB
Mapped:          11872 kB
Slab:            69032 kB
PageTables:       4324 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182884 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62304 MiB
End job on node025 at 2010-06-25 16:21:22