Trace number 2668927

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 18.0872 18.0935

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111218757.opb
MD5SUMd6496b44145c310b75c0b7261c5aa1e2
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 benchmark0.12798
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 1266
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
17.99/18.07	c 16.4025 7.96484 1085 94917
17.99/18.09	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-2668927-1276432307/watcher-2668927-1276432307 -o /tmp/evaluation-result-2668927-1276432307/solver-2668927-1276432307 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668927-1276432307.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: 1.00 1.00 1.00 3/106 26088
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=3384 CPUtime=0
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 545 0 0 0 0 0 0 0 20 0 1 0 18832228 3465216 467 1992294400 134512640 136485738 4291754592 18446744073709551615 135260256 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 846 469 196 482 0 362 0

[startup+0.0826071 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26088
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=7380 CPUtime=0.08
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1546 0 0 0 7 1 0 0 20 0 1 0 18832228 7557120 1468 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 1845 1468 223 482 0 1361 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7380

[startup+0.10061 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26088
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=7380 CPUtime=0.09
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1551 0 0 0 8 1 0 0 20 0 1 0 18832228 7557120 1473 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 1845 1473 223 482 0 1361 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7380

[startup+0.300649 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26088
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=7640 CPUtime=0.29
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1609 0 0 0 26 3 0 0 20 0 1 0 18832228 7823360 1531 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 1910 1531 223 482 0 1426 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7640

[startup+0.700727 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26088
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=7768 CPUtime=0.69
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1637 0 0 0 62 7 0 0 20 0 1 0 18832228 7954432 1559 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 1942 1559 223 482 0 1458 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7768

[startup+1.50088 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26089
/proc/meminfo: memFree=1810404/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=7896 CPUtime=1.49
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1656 0 0 0 136 13 0 0 22 0 1 0 18832228 8085504 1578 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 1974 1578 223 482 0 1490 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7896

[startup+3.1012 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26089
/proc/meminfo: memFree=1810280/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=7896 CPUtime=3.09
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1661 0 0 0 281 28 0 0 25 0 1 0 18832228 8085504 1583 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 1974 1583 223 482 0 1490 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7896

[startup+6.30082 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26089
/proc/meminfo: memFree=1810032/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=8024 CPUtime=6.29
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1694 0 0 0 570 59 0 0 25 0 1 0 18832228 8216576 1616 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 2006 1616 223 482 0 1522 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8024

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26091
/proc/meminfo: memFree=1809660/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=8024 CPUtime=12.68
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1714 0 0 0 1147 121 0 0 25 0 1 0 18832228 8216576 1636 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 2006 1636 223 482 0 1522 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 8024

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

[startup+15.9007 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26091
/proc/meminfo: memFree=1809660/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=8152 CPUtime=15.88
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1730 0 0 0 1438 150 0 0 25 0 1 0 18832228 8347648 1652 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 2038 1652 223 482 0 1554 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 8152

[startup+16.7009 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26091
/proc/meminfo: memFree=1809660/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=8152 CPUtime=16.68
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1730 0 0 0 1512 156 0 0 25 0 1 0 18832228 8347648 1652 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 2038 1652 223 482 0 1554 0
Current children cumulated CPU time (s) 16.68
Current children cumulated vsize (KiB) 8152

[startup+17.501 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26091
/proc/meminfo: memFree=1809660/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=8152 CPUtime=17.49
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1730 0 0 0 1587 162 0 0 25 0 1 0 18832228 8347648 1652 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 2038 1652 223 482 0 1554 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 8152

[startup+17.9011 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26091
/proc/meminfo: memFree=1809660/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=8152 CPUtime=17.89
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1730 0 0 0 1624 165 0 0 25 0 1 0 18832228 8347648 1652 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 2038 1652 223 482 0 1554 0
Current children cumulated CPU time (s) 17.89
Current children cumulated vsize (KiB) 8152

[startup+18.0011 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26091
/proc/meminfo: memFree=1809660/2059040 swapFree=4136184/4192956
[pid=26088] ppid=26086 vsize=8152 CPUtime=17.99
/proc/26088/stat : 26088 (pbct) R 26086 26088 25838 0 -1 4202496 1730 0 0 0 1633 166 0 0 25 0 1 0 18832228 8347648 1652 1992294400 134512640 136485738 4291754592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26088/statm: 2038 1652 223 482 0 1554 0
Current children cumulated CPU time (s) 17.99
Current children cumulated vsize (KiB) 8152

Child status: 0
Real time (s): 18.0935
CPU time (s): 18.0872
CPU user time (s): 16.4155
CPU system time (s): 1.67174
CPU usage (%): 99.9654
Max. virtual memory (cumulated for all children) (KiB): 8152

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.4155
system time used= 1.67175
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1754
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= 24

runsolver used 0.033994 second user time and 0.089986 second system time

The end

Launcher Data 

Begin job on node011 at 2010-06-13 14:31:47
IDJOB=2668927
IDBENCH=1259
IDSOLVER=1170
FILE ID=node011/2668927-1276432307
PBS_JOBID= 11173313
Free space on /tmp= 62264 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111218757.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668927-1276432307/watcher-2668927-1276432307 -o /tmp/evaluation-result-2668927-1276432307/solver-2668927-1276432307 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668927-1276432307.opb

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

MD5SUM BENCH= d6496b44145c310b75c0b7261c5aa1e2
RANDOM SEED=1815833078

node011.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		: 3000.264
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	: 6000.52
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
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1816396 kB
Buffers:         42588 kB
Cached:         124156 kB
SwapCached:       9868 kB
Active:          93084 kB
Inactive:        86080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1816396 kB
SwapTotal:     4192956 kB
SwapFree:      4136184 kB
Dirty:            2052 kB
Writeback:           0 kB
AnonPages:       10940 kB
Mapped:           9144 kB
Slab:            41600 kB
PageTables:       4052 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180324 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= 62260 MiB
End job on node011 at 2010-06-13 14:32:05