Trace number 2668914

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 24.0913 24.0999

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110973163.opb
MD5SUM48e5a0f80e1be044effaae28584b73c9
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 benchmark0.159975
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 1215
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
23.98/24.08	c 21.8467 8.10156 445 127594
23.98/24.09	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-2668914-1276432282/watcher-2668914-1276432282 -o /tmp/evaluation-result-2668914-1276432282/solver-2668914-1276432282 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668914-1276432282.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 26061
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=3384 CPUtime=0
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 535 0 0 0 0 0 0 0 17 0 1 0 18829743 3465216 458 1992294400 134512640 136485738 4293648928 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 846 460 191 482 0 362 0

[startup+0.0260879 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26061
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=4696 CPUtime=0.02
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 855 0 0 0 2 0 0 0 17 0 1 0 18829743 4808704 778 1992294400 134512640 136485738 4293648928 18446744073709551615 135689147 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 1174 778 196 482 0 690 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4696

[startup+0.101102 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26061
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=7384 CPUtime=0.09
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1546 0 0 0 9 0 0 0 17 0 1 0 18829743 7561216 1469 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 1846 1469 223 482 0 1362 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7384

[startup+0.301141 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26061
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=7644 CPUtime=0.29
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1593 0 0 0 27 2 0 0 17 0 1 0 18829743 7827456 1516 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 1911 1516 223 482 0 1427 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7644

[startup+0.70122 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26061
/proc/meminfo: memFree=1815992/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=7772 CPUtime=0.69
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1624 0 0 0 64 5 0 0 17 0 1 0 18829743 7958528 1547 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 1943 1547 223 482 0 1459 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7772

[startup+1.50138 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1810652/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=7772 CPUtime=1.49
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1645 0 0 0 136 13 0 0 18 0 1 0 18829743 7958528 1568 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 1943 1568 223 482 0 1459 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7772

[startup+3.10169 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1810280/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=7900 CPUtime=3.09
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1673 0 0 0 281 28 0 0 21 0 1 0 18829743 8089600 1596 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 1975 1596 223 482 0 1491 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7900

[startup+6.30131 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1810032/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=8028 CPUtime=6.28
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1713 0 0 0 572 56 0 0 25 0 1 0 18829743 8220672 1636 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 2007 1636 223 482 0 1523 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 8028

[startup+12.7016 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1809784/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=8160 CPUtime=12.69
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1734 0 0 0 1150 119 0 0 25 0 1 0 18829743 8355840 1657 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 2040 1657 223 482 0 1556 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8160

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

[startup+19.1018 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1809784/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=8292 CPUtime=19.08
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1751 0 0 0 1731 177 0 0 25 0 1 0 18829743 8491008 1674 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 2073 1674 223 482 0 1589 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 8292

[startup+22.3014 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1809784/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=8292 CPUtime=22.28
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1751 0 0 0 2021 207 0 0 25 0 1 0 18829743 8491008 1674 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 2073 1674 223 482 0 1589 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 8292

[startup+23.1086 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1809784/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=8292 CPUtime=23.09
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1751 0 0 0 2095 214 0 0 25 0 1 0 18829743 8491008 1674 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 2073 1674 223 482 0 1589 0
Current children cumulated CPU time (s) 23.09
Current children cumulated vsize (KiB) 8292

[startup+23.5017 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1809784/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=8292 CPUtime=23.49
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1751 0 0 0 2131 218 0 0 25 0 1 0 18829743 8491008 1674 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 2073 1674 223 482 0 1589 0
Current children cumulated CPU time (s) 23.49
Current children cumulated vsize (KiB) 8292

[startup+23.9018 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1809784/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=8292 CPUtime=23.88
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1751 0 0 0 2167 221 0 0 25 0 1 0 18829743 8491008 1674 1992294400 134512640 136485738 4293648928 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 2073 1674 223 482 0 1589 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 8292

[startup+24.0018 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26062
/proc/meminfo: memFree=1809784/2059040 swapFree=4136184/4192956
[pid=26061] ppid=26059 vsize=8292 CPUtime=23.98
/proc/26061/stat : 26061 (pbct) R 26059 26061 25838 0 -1 4202496 1751 0 0 0 2176 222 0 0 25 0 1 0 18829743 8491008 1674 1992294400 134512640 136485738 4293648928 18446744073709551615 134873294 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26061/statm: 2073 1674 223 482 0 1589 0
Current children cumulated CPU time (s) 23.98
Current children cumulated vsize (KiB) 8292

Child status: 0
Real time (s): 24.0999
CPU time (s): 24.0913
CPU user time (s): 21.8597
CPU system time (s): 2.23166
CPU usage (%): 99.9645
Max. virtual memory (cumulated for all children) (KiB): 8292

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.8597
system time used= 2.23166
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1775
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= 29

runsolver used 0.044993 second user time and 0.121981 second system time

The end

Launcher Data 

Begin job on node011 at 2010-06-13 14:31:22
IDJOB=2668914
IDBENCH=1246
IDSOLVER=1170
FILE ID=node011/2668914-1276432282
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-t2001.13queen13.1110973163.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668914-1276432282/watcher-2668914-1276432282 -o /tmp/evaluation-result-2668914-1276432282/solver-2668914-1276432282 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668914-1276432282.opb

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

MD5SUM BENCH= 48e5a0f80e1be044effaae28584b73c9
RANDOM SEED=676228142

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:       1816644 kB
Buffers:         42508 kB
Cached:         124172 kB
SwapCached:       9868 kB
Active:          93048 kB
Inactive:        86016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1816644 kB
SwapTotal:     4192956 kB
SwapFree:      4136184 kB
Dirty:            2156 kB
Writeback:           0 kB
AnonPages:       10912 kB
Mapped:           9156 kB
Slab:            41684 kB
PageTables:       4016 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 14:31:46