Trace number 2668878

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 0.1UNSAT 20.8688 20.8741

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111221203.opb
MD5SUM85d02cb4edf665957c01ae4f54b30e83
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 benchmark0.226965
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 1228
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 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
20.79/20.86	c 18.8951 7.98438 112 111458
20.79/20.87	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-2668878-1276432175/watcher-2668878-1276432175 -o /tmp/evaluation-result-2668878-1276432175/solver-2668878-1276432175 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668878-1276432175.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: 0.96 0.98 0.99 3/107 22686
/proc/meminfo: memFree=1745164/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=3384 CPUtime=0
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 547 0 0 0 0 0 0 0 20 0 1 0 16873235 3465216 470 1992294400 134512640 136485738 4293019808 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 846 471 196 482 0 362 0

[startup+0.0828149 s]
/proc/loadavg: 0.96 0.98 0.99 3/107 22686
/proc/meminfo: memFree=1745164/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=7404 CPUtime=0.07
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1545 0 0 0 7 0 0 0 20 0 1 0 16873235 7581696 1468 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 1851 1468 223 482 0 1367 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 7404

[startup+0.100816 s]
/proc/loadavg: 0.96 0.98 0.99 3/107 22686
/proc/meminfo: memFree=1745164/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=7404 CPUtime=0.09
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1550 0 0 0 9 0 0 0 20 0 1 0 16873235 7581696 1473 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 1851 1473 223 482 0 1367 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7404

[startup+0.300833 s]
/proc/loadavg: 0.96 0.98 0.99 3/107 22686
/proc/meminfo: memFree=1745164/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=7532 CPUtime=0.29
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1590 0 0 0 27 2 0 0 20 0 1 0 16873235 7712768 1513 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 1883 1513 223 482 0 1399 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7532

[startup+0.700869 s]
/proc/loadavg: 0.96 0.98 0.99 3/107 22686
/proc/meminfo: memFree=1745164/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=7660 CPUtime=0.69
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1613 0 0 0 63 6 0 0 20 0 1 0 16873235 7843840 1536 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 1915 1536 223 482 0 1431 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7660

[startup+1.50094 s]
/proc/loadavg: 0.96 0.98 0.99 2/108 22687
/proc/meminfo: memFree=1739824/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=7788 CPUtime=1.49
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1631 0 0 0 137 12 0 0 23 0 1 0 16873235 7974912 1554 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 1947 1554 223 482 0 1463 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7788

[startup+3.10108 s]
/proc/loadavg: 0.96 0.98 0.99 2/108 22687
/proc/meminfo: memFree=1739452/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=7916 CPUtime=3.09
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1668 0 0 0 282 27 0 0 25 0 1 0 16873235 8105984 1591 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 1979 1591 223 482 0 1495 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7916

[startup+6.30137 s]
/proc/loadavg: 0.97 0.98 0.99 2/108 22687
/proc/meminfo: memFree=1739204/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=8044 CPUtime=6.29
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1711 0 0 0 571 58 0 0 25 0 1 0 16873235 8237056 1634 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 2011 1634 223 482 0 1527 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8044

[startup+12.7009 s]
/proc/loadavg: 0.97 0.98 0.99 2/108 22687
/proc/meminfo: memFree=1738832/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=8172 CPUtime=12.69
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1746 0 0 0 1149 120 0 0 25 0 1 0 16873235 8368128 1669 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8172

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

[startup+15.9012 s]
/proc/loadavg: 0.97 0.98 0.99 2/108 22687
/proc/meminfo: memFree=1738832/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=8172 CPUtime=15.88
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1746 0 0 0 1440 148 0 0 25 0 1 0 16873235 8368128 1669 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 8172

[startup+19.1005 s]
/proc/loadavg: 0.97 0.98 0.99 2/108 22689
/proc/meminfo: memFree=1738832/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=8172 CPUtime=19.09
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1746 0 0 0 1728 181 0 0 25 0 1 0 16873235 8368128 1669 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 8172

[startup+19.9006 s]
/proc/loadavg: 0.97 0.98 0.99 2/108 22689
/proc/meminfo: memFree=1738832/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=8172 CPUtime=19.88
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1746 0 0 0 1800 188 0 0 25 0 1 0 16873235 8368128 1669 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 19.88
Current children cumulated vsize (KiB) 8172

[startup+20.3006 s]
/proc/loadavg: 0.97 0.98 0.99 2/108 22689
/proc/meminfo: memFree=1738832/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=8172 CPUtime=20.29
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1746 0 0 0 1837 192 0 0 25 0 1 0 16873235 8368128 1669 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 20.29
Current children cumulated vsize (KiB) 8172

[startup+20.7007 s]
/proc/loadavg: 0.97 0.98 0.99 2/108 22689
/proc/meminfo: memFree=1738832/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=8172 CPUtime=20.69
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1746 0 0 0 1875 194 0 0 25 0 1 0 16873235 8368128 1669 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 8172

[startup+20.8007 s]
/proc/loadavg: 0.97 0.98 0.99 2/108 22689
/proc/meminfo: memFree=1738832/2059040 swapFree=4140108/4192956
[pid=22686] ppid=22684 vsize=8172 CPUtime=20.79
/proc/22686/stat : 22686 (pbct) R 22684 22686 22087 0 -1 4202496 1746 0 0 0 1884 195 0 0 25 0 1 0 16873235 8368128 1669 1992294400 134512640 136485738 4293019808 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22686/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 20.79
Current children cumulated vsize (KiB) 8172

Child status: 0
Real time (s): 20.8741
CPU time (s): 20.8688
CPU user time (s): 18.9081
CPU system time (s): 1.9607
CPU usage (%): 99.9748
Max. virtual memory (cumulated for all children) (KiB): 8172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.9081
system time used= 1.9607
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1770
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= 2
involuntary context switches= 83

runsolver used 0.029995 second user time and 0.117982 second system time

The end

Launcher Data

Begin job on node025 at 2010-06-13 14:29:35
IDJOB=2668878
IDBENCH=1210
IDSOLVER=1170
FILE ID=node025/2668878-1276432175
PBS_JOBID= 11173304
Free space on /tmp= 62540 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111221203.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668878-1276432175/watcher-2668878-1276432175 -o /tmp/evaluation-result-2668878-1276432175/solver-2668878-1276432175 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668878-1276432175.opb

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

MD5SUM BENCH= 85d02cb4edf665957c01ae4f54b30e83
RANDOM SEED=800324303

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:       1745684 kB
Buffers:         78296 kB
Cached:         143944 kB
SwapCached:       6632 kB
Active:         138704 kB
Inactive:        96776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1745684 kB
SwapTotal:     4192956 kB
SwapFree:      4140108 kB
Dirty:            2024 kB
Writeback:           0 kB
AnonPages:       11168 kB
Mapped:          12892 kB
Slab:            55956 kB
PageTables:       4060 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181672 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= 62540 MiB
End job on node025 at 2010-06-13 14:29:56