Trace number 2668913

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 17.0284 17.0334

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110968898.opb
MD5SUM69ed8f4b39c68fafbb367acafc32198c
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 benchmark0.143977
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 1261
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
16.99/17.01	c 15.4217 7.98438 260 88041
16.99/17.03	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-2668913-1276432279/watcher-2668913-1276432279 -o /tmp/evaluation-result-2668913-1276432279/solver-2668913-1276432279 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668913-1276432279.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 24352
/proc/meminfo: memFree=1827336/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=3384 CPUtime=0
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 539 0 0 0 0 0 0 0 22 0 1 0 18831552 3465216 461 1992294400 134512640 136485738 4292009856 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 846 464 192 482 0 362 0

[startup+0.102862 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24352
/proc/meminfo: memFree=1827336/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=7404 CPUtime=0.09
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1549 0 0 0 9 0 0 0 22 0 1 0 18831552 7581696 1471 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 1851 1471 223 482 0 1367 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7404

[startup+0.200874 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24352
/proc/meminfo: memFree=1827336/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=7532 CPUtime=0.19
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1569 0 0 0 18 1 0 0 22 0 1 0 18831552 7712768 1491 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 1883 1491 223 482 0 1399 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7532

[startup+0.300886 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24352
/proc/meminfo: memFree=1827336/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=7532 CPUtime=0.29
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1590 0 0 0 27 2 0 0 22 0 1 0 18831552 7712768 1512 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 1883 1512 223 482 0 1399 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7532

[startup+0.700931 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24352
/proc/meminfo: memFree=1827336/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=7660 CPUtime=0.69
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1614 0 0 0 64 5 0 0 23 0 1 0 18831552 7843840 1536 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 1915 1536 223 482 0 1431 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7660

[startup+1.50102 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24353
/proc/meminfo: memFree=1821872/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=7788 CPUtime=1.49
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1647 0 0 0 138 11 0 0 25 0 1 0 18831552 7974912 1569 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 1947 1569 223 482 0 1463 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7788

[startup+3.10121 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24353
/proc/meminfo: memFree=1821624/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=7916 CPUtime=3.09
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1681 0 0 0 284 25 0 0 25 0 1 0 18831552 8105984 1603 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 1979 1603 223 482 0 1495 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7916

[startup+6.30058 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24353
/proc/meminfo: memFree=1821376/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=8044 CPUtime=6.29
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1708 0 0 0 570 59 0 0 25 0 1 0 18831552 8237056 1630 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 2011 1630 223 482 0 1527 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8044

[startup+12.7013 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24353
/proc/meminfo: memFree=1821128/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=8172 CPUtime=12.69
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1733 0 0 0 1151 118 0 0 25 0 1 0 18831552 8368128 1655 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 2043 1655 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+12.8013 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24353
/proc/meminfo: memFree=1821128/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=8172 CPUtime=12.79
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1733 0 0 0 1160 119 0 0 25 0 1 0 18831552 8368128 1655 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 2043 1655 223 482 0 1559 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 8172

[startup+14.4085 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24353
/proc/meminfo: memFree=1821128/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=8172 CPUtime=14.4
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1733 0 0 0 1306 134 0 0 25 0 1 0 18831552 8368128 1655 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 2043 1655 223 482 0 1559 0
Current children cumulated CPU time (s) 14.4
Current children cumulated vsize (KiB) 8172

[startup+16.0007 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24353
/proc/meminfo: memFree=1821128/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=8172 CPUtime=15.99
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1733 0 0 0 1452 147 0 0 25 0 1 0 18831552 8368128 1655 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 2043 1655 223 482 0 1559 0
Current children cumulated CPU time (s) 15.99
Current children cumulated vsize (KiB) 8172

[startup+16.8008 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24353
/proc/meminfo: memFree=1821128/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=8172 CPUtime=16.79
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1733 0 0 0 1522 157 0 0 25 0 1 0 18831552 8368128 1655 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 2043 1655 223 482 0 1559 0
Current children cumulated CPU time (s) 16.79
Current children cumulated vsize (KiB) 8172

[startup+17.0008 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24353
/proc/meminfo: memFree=1821128/2059040 swapFree=4140112/4192956
[pid=24352] ppid=24350 vsize=8172 CPUtime=16.99
/proc/24352/stat : 24352 (pbct) R 24350 24352 24181 0 -1 4202496 1733 0 0 0 1540 159 0 0 25 0 1 0 18831552 8368128 1655 1992294400 134512640 136485738 4292009856 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24352/statm: 2043 1655 223 482 0 1559 0
Current children cumulated CPU time (s) 16.99
Current children cumulated vsize (KiB) 8172

Child status: 0
Real time (s): 17.0334
CPU time (s): 17.0284
CPU user time (s): 15.4337
CPU system time (s): 1.59476
CPU usage (%): 99.9707
Max. virtual memory (cumulated for all children) (KiB): 8172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.4337
system time used= 1.59476
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1757
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= 58

runsolver used 0.028995 second user time and 0.087986 second system time

The end

Launcher Data 

Begin job on node006 at 2010-06-13 14:31:19
IDJOB=2668913
IDBENCH=1245
IDSOLVER=1170
FILE ID=node006/2668913-1276432279
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-t2001.13queen13.1110968898.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668913-1276432279/watcher-2668913-1276432279 -o /tmp/evaluation-result-2668913-1276432279/solver-2668913-1276432279 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668913-1276432279.opb

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

MD5SUM BENCH= 69ed8f4b39c68fafbb367acafc32198c
RANDOM SEED=534727411

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:       1827732 kB
Buffers:         26536 kB
Cached:         124148 kB
SwapCached:       6336 kB
Active:          30284 kB
Inactive:       133772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1827732 kB
SwapTotal:     4192956 kB
SwapFree:      4140112 kB
Dirty:            2060 kB
Writeback:           0 kB
AnonPages:       11800 kB
Mapped:          13032 kB
Slab:            45196 kB
PageTables:       4052 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182740 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 14:31:36