Trace number 2668867

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 24.3843 24.3922

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110975965.opb
MD5SUM5a91e712d3aef81a2c9052622caecb97
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 benchmark0.248961
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 1171
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
24.28/24.37	c 22.1436 8.10547 917 126879
24.28/24.39	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-2668867-1276432131/watcher-2668867-1276432131 -o /tmp/evaluation-result-2668867-1276432131/solver-2668867-1276432131 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668867-1276432131.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 0.97 0.99 3/106 22117
/proc/meminfo: memFree=1821588/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=3384 CPUtime=0
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 521 0 0 0 0 0 0 0 20 0 1 0 18816978 3465216 443 1992294400 134512640 136485738 4287532032 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 846 445 190 482 0 362 0

[startup+0.0332421 s]
/proc/loadavg: 0.96 0.97 0.99 3/106 22117
/proc/meminfo: memFree=1821588/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=5084 CPUtime=0.02
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 951 0 0 0 2 0 0 0 20 0 1 0 18816978 5206016 873 1992294400 134512640 136485738 4287532032 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 1271 874 196 482 0 787 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5084

[startup+0.101248 s]
/proc/loadavg: 0.96 0.97 0.99 3/106 22117
/proc/meminfo: memFree=1821588/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=7408 CPUtime=0.09
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1552 0 0 0 8 1 0 0 20 0 1 0 18816978 7585792 1474 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 1852 1474 223 482 0 1368 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7408

[startup+0.301266 s]
/proc/loadavg: 0.96 0.97 0.99 3/106 22117
/proc/meminfo: memFree=1821588/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=7664 CPUtime=0.29
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1604 0 0 0 27 2 0 0 20 0 1 0 18816978 7847936 1526 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 1916 1526 223 482 0 1432 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7664

[startup+0.701304 s]
/proc/loadavg: 0.96 0.97 0.99 3/106 22117
/proc/meminfo: memFree=1821588/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=7792 CPUtime=0.69
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1630 0 0 0 64 5 0 0 20 0 1 0 18816978 7979008 1552 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 1948 1552 223 482 0 1464 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7792

[startup+1.50038 s]
/proc/loadavg: 0.96 0.97 0.99 2/107 22118
/proc/meminfo: memFree=1816124/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=7792 CPUtime=1.49
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1646 0 0 0 134 15 0 0 23 0 1 0 18816978 7979008 1568 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 1948 1568 223 482 0 1464 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7792

[startup+3.10053 s]
/proc/loadavg: 0.97 0.97 0.99 2/107 22118
/proc/meminfo: memFree=1815752/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=7920 CPUtime=3.09
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1685 0 0 0 280 29 0 0 25 0 1 0 18816978 8110080 1607 1992294400 134512640 136485738 4287532032 18446744073709551615 135725115 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 1980 1607 223 482 0 1496 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7920

[startup+6.30084 s]
/proc/loadavg: 0.97 0.97 0.99 2/107 22118
/proc/meminfo: memFree=1815628/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=8048 CPUtime=6.29
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1724 0 0 0 569 60 0 0 25 0 1 0 18816978 8241152 1646 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 2012 1646 223 482 0 1528 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8048

[startup+12.7004 s]
/proc/loadavg: 0.97 0.97 0.99 2/107 22118
/proc/meminfo: memFree=1815256/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=8296 CPUtime=12.68
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1759 0 0 0 1151 117 0 0 25 0 1 0 18816978 8495104 1681 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 2074 1681 223 482 0 1590 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 8296

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

[startup+19.1011 s]
/proc/loadavg: 0.97 0.97 0.99 2/107 22118
/proc/meminfo: memFree=1815256/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=8296 CPUtime=19.08
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1759 0 0 0 1732 176 0 0 25 0 1 0 18816978 8495104 1681 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 2074 1681 223 482 0 1590 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 8296

[startup+22.3014 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22120
/proc/meminfo: memFree=1815256/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=8296 CPUtime=22.28
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1761 0 0 0 2024 204 0 0 25 0 1 0 18816978 8495104 1683 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 2074 1683 223 482 0 1590 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 8296

[startup+23.1084 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22120
/proc/meminfo: memFree=1815256/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=8296 CPUtime=23.09
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1761 0 0 0 2098 211 0 0 25 0 1 0 18816978 8495104 1683 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 2074 1683 223 482 0 1590 0
Current children cumulated CPU time (s) 23.09
Current children cumulated vsize (KiB) 8296

[startup+23.9015 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22120
/proc/meminfo: memFree=1815256/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=8296 CPUtime=23.88
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1761 0 0 0 2170 218 0 0 25 0 1 0 18816978 8495104 1683 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 2074 1683 223 482 0 1590 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 8296

[startup+24.3015 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22120
/proc/meminfo: memFree=1815256/2059040 swapFree=4140388/4192956
[pid=22117] ppid=22115 vsize=8296 CPUtime=24.28
/proc/22117/stat : 22117 (pbct) R 22115 22117 21007 0 -1 4202496 1761 0 0 0 2207 221 0 0 25 0 1 0 18816978 8495104 1683 1992294400 134512640 136485738 4287532032 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22117/statm: 2074 1683 223 482 0 1590 0
Current children cumulated CPU time (s) 24.28
Current children cumulated vsize (KiB) 8296

Child status: 0
Real time (s): 24.3922
CPU time (s): 24.3843
CPU user time (s): 22.1566
CPU system time (s): 2.22766
CPU usage (%): 99.9677
Max. virtual memory (cumulated for all children) (KiB): 8304

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.1566
system time used= 2.22766
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1785
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= 124

runsolver used 0.043993 second user time and 0.122981 second system time

The end

Launcher Data 

Begin job on node004 at 2010-06-13 14:28:51
IDJOB=2668867
IDBENCH=1199
IDSOLVER=1170
FILE ID=node004/2668867-1276432131
PBS_JOBID= 11173308
Free space on /tmp= 62536 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110975965.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668867-1276432131/watcher-2668867-1276432131 -o /tmp/evaluation-result-2668867-1276432131/solver-2668867-1276432131 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668867-1276432131.opb

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

MD5SUM BENCH= 5a91e712d3aef81a2c9052622caecb97
RANDOM SEED=1877729978

node004.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		: 3000.210
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	: 6000.42
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		: 3000.210
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1821992 kB
Buffers:         31576 kB
Cached:         126608 kB
SwapCached:       6528 kB
Active:          93664 kB
Inactive:        77960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1821992 kB
SwapTotal:     4192956 kB
SwapFree:      4140388 kB
Dirty:            2172 kB
Writeback:           0 kB
AnonPages:       11312 kB
Mapped:          13028 kB
Slab:            43548 kB
PageTables:       4068 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180876 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= 62536 MiB
End job on node004 at 2010-06-13 14:29:16