Trace number 2668847

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 0.1SAT 3.2965 3.2973

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110971766.opb
MD5SUM4ce656c7025396ed91a180996d592d66
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.168973
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
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 1210
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
3.20/3.28	c 2.94855 7.74219 1596 17143
3.20/3.28	s SATISFIABLE
3.20/3.28	v -x1 -x2 -x3 -x4 x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28 -x29 -x30 -x31 x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 x50 -x51 -x52 -x53 -x54 x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86 x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 x104 -x105 x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 x166 -x167 -x168 -x169

Verifier Data 

OK	0

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668847-1276432030/watcher-2668847-1276432030 -o /tmp/evaluation-result-2668847-1276432030/solver-2668847-1276432030 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668847-1276432030.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: 0.98 0.98 1.00 3/106 21926
/proc/meminfo: memFree=1822208/2059040 swapFree=4140388/4192956
[pid=21926] ppid=21924 vsize=3384 CPUtime=0
/proc/21926/stat : 21926 (pbct) R 21924 21926 21007 0 -1 4202496 539 0 0 0 0 0 0 0 20 0 1 0 18806843 3465216 461 1992294400 134512640 136485738 4289816832 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21926/statm: 846 466 194 482 0 362 0

[startup+0.079363 s]
/proc/loadavg: 0.98 0.98 1.00 3/106 21926
/proc/meminfo: memFree=1822208/2059040 swapFree=4140388/4192956
[pid=21926] ppid=21924 vsize=7408 CPUtime=0.06
/proc/21926/stat : 21926 (pbct) R 21924 21926 21007 0 -1 4202496 1547 0 0 0 6 0 0 0 20 0 1 0 18806843 7585792 1469 1992294400 134512640 136485738 4289816832 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21926/statm: 1852 1469 223 482 0 1368 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 7408

[startup+0.101364 s]
/proc/loadavg: 0.98 0.98 1.00 3/106 21926
/proc/meminfo: memFree=1822208/2059040 swapFree=4140388/4192956
[pid=21926] ppid=21924 vsize=7408 CPUtime=0.09
/proc/21926/stat : 21926 (pbct) R 21924 21926 21007 0 -1 4202496 1551 0 0 0 8 1 0 0 20 0 1 0 18806843 7585792 1473 1992294400 134512640 136485738 4289816832 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21926/statm: 1852 1474 223 482 0 1368 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7408

[startup+0.300384 s]
/proc/loadavg: 0.98 0.98 1.00 3/106 21926
/proc/meminfo: memFree=1822208/2059040 swapFree=4140388/4192956
[pid=21926] ppid=21924 vsize=7536 CPUtime=0.29
/proc/21926/stat : 21926 (pbct) R 21924 21926 21007 0 -1 4202496 1589 0 0 0 26 3 0 0 20 0 1 0 18806843 7716864 1511 1992294400 134512640 136485738 4289816832 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21926/statm: 1884 1511 223 482 0 1400 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7536

[startup+0.700422 s]
/proc/loadavg: 0.98 0.98 1.00 3/106 21926
/proc/meminfo: memFree=1822208/2059040 swapFree=4140388/4192956
[pid=21926] ppid=21924 vsize=7664 CPUtime=0.69
/proc/21926/stat : 21926 (pbct) R 21924 21926 21007 0 -1 4202496 1621 0 0 0 63 6 0 0 21 0 1 0 18806843 7847936 1543 1992294400 134512640 136485738 4289816832 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21926/statm: 1916 1543 223 482 0 1432 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7664

[startup+1.5005 s]
/proc/loadavg: 0.98 0.98 1.00 2/107 21927
/proc/meminfo: memFree=1816744/2059040 swapFree=4140388/4192956
[pid=21926] ppid=21924 vsize=7792 CPUtime=1.49
/proc/21926/stat : 21926 (pbct) R 21924 21926 21007 0 -1 4202496 1654 0 0 0 133 16 0 0 23 0 1 0 18806843 7979008 1576 1992294400 134512640 136485738 4289816832 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21926/statm: 1948 1576 223 482 0 1464 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7792

[startup+3.10065 s]
/proc/loadavg: 0.98 0.98 1.00 2/107 21927
/proc/meminfo: memFree=1816496/2059040 swapFree=4140388/4192956
[pid=21926] ppid=21924 vsize=7924 CPUtime=3.09
/proc/21926/stat : 21926 (pbct) R 21924 21926 21007 0 -1 4202496 1676 0 0 0 278 31 0 0 25 0 1 0 18806843 8114176 1598 1992294400 134512640 136485738 4289816832 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21926/statm: 1981 1598 223 482 0 1497 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7924

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

[startup+3.20066 s]
/proc/loadavg: 0.98 0.98 1.00 2/107 21927
/proc/meminfo: memFree=1816372/2059040 swapFree=4140388/4192956
[pid=21926] ppid=21924 vsize=7924 CPUtime=3.2
/proc/21926/stat : 21926 (pbct) R 21924 21926 21007 0 -1 4202496 1677 0 0 0 288 32 0 0 25 0 1 0 18806843 8114176 1599 1992294400 134512640 136485738 4289816832 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21926/statm: 1981 1599 223 482 0 1497 0
Current children cumulated CPU time (s) 3.2
Current children cumulated vsize (KiB) 7924

Child status: 0
Real time (s): 3.2973
CPU time (s): 3.2965
CPU user time (s): 2.96255
CPU system time (s): 0.333949
CPU usage (%): 99.9758
Max. virtual memory (cumulated for all children) (KiB): 7924

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.96255
system time used= 0.333949
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1701
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= 18

runsolver used 0.007998 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node004 at 2010-06-13 14:27:10
IDJOB=2668847
IDBENCH=1179
IDSOLVER=1170
FILE ID=node004/2668847-1276432030
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-t2001.13queen13.1110971766.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668847-1276432030/watcher-2668847-1276432030 -o /tmp/evaluation-result-2668847-1276432030/solver-2668847-1276432030 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668847-1276432030.opb

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

MD5SUM BENCH= 4ce656c7025396ed91a180996d592d66
RANDOM SEED=1463774412

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:       1822612 kB
Buffers:         31148 kB
Cached:         126452 kB
SwapCached:       6528 kB
Active:          93460 kB
Inactive:        77596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1822612 kB
SwapTotal:     4192956 kB
SwapFree:      4140388 kB
Dirty:            2160 kB
Writeback:           4 kB
AnonPages:       11220 kB
Mapped:          13012 kB
Slab:            43548 kB
PageTables:       4136 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 14:27:13