Trace number 2668910

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 12.5901 12.5941

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110975607.opb
MD5SUM4355801cdfe1ea864d19a1c85fc647a0
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 benchmark0.080986
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 1221
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
12.49/12.57	c 11.3893 7.85547 195 66075
12.49/12.59	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-2668910-1276432266/watcher-2668910-1276432266 -o /tmp/evaluation-result-2668910-1276432266/solver-2668910-1276432266 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668910-1276432266.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 24325
/proc/meminfo: memFree=1827460/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=3384 CPUtime=0
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 525 0 0 0 0 0 0 0 20 0 1 0 18830225 3465216 447 1992294400 134512640 136485738 4288111760 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 846 451 190 482 0 362 0

[startup+0.0362531 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24325
/proc/meminfo: memFree=1827460/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=5348 CPUtime=0.03
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1011 0 0 0 3 0 0 0 20 0 1 0 18830225 5476352 933 1992294400 134512640 136485738 4288111760 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 1337 934 196 482 0 853 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5348

[startup+0.10126 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24325
/proc/meminfo: memFree=1827460/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=7400 CPUtime=0.09
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1553 0 0 0 9 0 0 0 20 0 1 0 18830225 7577600 1475 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 1850 1475 223 482 0 1366 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7400

[startup+0.301283 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24325
/proc/meminfo: memFree=1827460/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=7656 CPUtime=0.29
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1598 0 0 0 28 1 0 0 20 0 1 0 18830225 7839744 1520 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 1914 1520 223 482 0 1430 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7656

[startup+0.701329 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24325
/proc/meminfo: memFree=1827460/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=7656 CPUtime=0.69
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1615 0 0 0 65 4 0 0 20 0 1 0 18830225 7839744 1537 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 1914 1537 223 482 0 1430 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7656

[startup+1.50042 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24326
/proc/meminfo: memFree=1821996/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=7784 CPUtime=1.49
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1640 0 0 0 137 12 0 0 22 0 1 0 18830225 7970816 1562 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 1946 1562 223 482 0 1462 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7784

[startup+3.10061 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24326
/proc/meminfo: memFree=1821748/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=7912 CPUtime=3.09
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1681 0 0 0 282 27 0 0 25 0 1 0 18830225 8101888 1603 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 1978 1603 223 482 0 1494 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7912

[startup+6.30098 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24326
/proc/meminfo: memFree=1821500/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=7912 CPUtime=6.29
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1685 0 0 0 570 59 0 0 25 0 1 0 18830225 8101888 1607 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 1978 1607 223 482 0 1494 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7912

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

[startup+9.50135 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24326
/proc/meminfo: memFree=1821376/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=8040 CPUtime=9.49
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1703 0 0 0 859 90 0 0 25 0 1 0 18830225 8232960 1625 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 2010 1625 223 482 0 1526 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 8040

[startup+11.1005 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24326
/proc/meminfo: memFree=1821252/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=8040 CPUtime=11.08
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1705 0 0 0 1003 105 0 0 25 0 1 0 18830225 8232960 1627 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 2010 1627 223 482 0 1526 0
Current children cumulated CPU time (s) 11.08
Current children cumulated vsize (KiB) 8040

[startup+11.9006 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24326
/proc/meminfo: memFree=1821252/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=8040 CPUtime=11.88
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1721 0 0 0 1076 112 0 0 25 0 1 0 18830225 8232960 1643 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 2010 1643 223 482 0 1526 0
Current children cumulated CPU time (s) 11.88
Current children cumulated vsize (KiB) 8040

[startup+12.3007 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24326
/proc/meminfo: memFree=1821252/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=8040 CPUtime=12.28
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1721 0 0 0 1112 116 0 0 25 0 1 0 18830225 8232960 1643 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 2010 1643 223 482 0 1526 0
Current children cumulated CPU time (s) 12.28
Current children cumulated vsize (KiB) 8040

[startup+12.5007 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24326
/proc/meminfo: memFree=1821252/2059040 swapFree=4140112/4192956
[pid=24325] ppid=24323 vsize=8040 CPUtime=12.49
/proc/24325/stat : 24325 (pbct) R 24323 24325 24181 0 -1 4202496 1721 0 0 0 1131 118 0 0 25 0 1 0 18830225 8232960 1643 1992294400 134512640 136485738 4288111760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24325/statm: 2010 1643 223 482 0 1526 0
Current children cumulated CPU time (s) 12.49
Current children cumulated vsize (KiB) 8040

Child status: 0
Real time (s): 12.5941
CPU time (s): 12.5901
CPU user time (s): 11.4023
CPU system time (s): 1.18782
CPU usage (%): 99.9684
Max. virtual memory (cumulated for all children) (KiB): 8040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.4023
system time used= 1.18782
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1745
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= 47

runsolver used 0.021996 second user time and 0.067989 second system time

The end

Launcher Data 

Begin job on node006 at 2010-06-13 14:31:06
IDJOB=2668910
IDBENCH=1242
IDSOLVER=1170
FILE ID=node006/2668910-1276432266
PBS_JOBID= 11173315
Free space on /tmp= 62472 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110975607.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668910-1276432266/watcher-2668910-1276432266 -o /tmp/evaluation-result-2668910-1276432266/solver-2668910-1276432266 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668910-1276432266.opb

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

MD5SUM BENCH= 4355801cdfe1ea864d19a1c85fc647a0
RANDOM SEED=1702464502

node006.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		: 3000.204
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	: 6000.40
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		: 3000.204
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:       1827988 kB
Buffers:         26484 kB
Cached:         124136 kB
SwapCached:       6336 kB
Active:          30248 kB
Inactive:       133736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1827988 kB
SwapTotal:     4192956 kB
SwapFree:      4140112 kB
Dirty:            2096 kB
Writeback:           4 kB
AnonPages:       11776 kB
Mapped:          12956 kB
Slab:            45192 kB
PageTables:       4092 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180840 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= 62472 MiB
End job on node006 at 2010-06-13 14:31:18