Trace number 2696218

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_cplex 2010-06-29SAT 7.28689 5.5425

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900554375.opb
MD5SUM94c9ec489efaf922d51279ebf575f8fa
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 benchmark0.047992
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables231
Total number of constraints2707
Number of constraints which are clauses2684
Number of constraints which are cardinality constraints (but not clauses)22
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint110
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 25
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 661
Number of bits of the biggest sum of numbers10
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_cplex 1.0 - 20100701
0.00/0.00	c Parsing opb file format. File HOME/instance-2696218-1278015155.opb.
0.00/0.00	c Instance file HOME/instance-2696218-1278015155.opb
0.00/0.00	c File size is 83377 bytes.
0.00/0.03	c Highest Coefficient sum: 661
0.00/0.03	c  IBM ILOG License Manager: "IBM ILOG Optimization Suite for Academic Initiative" is accessing CPLEX 12 with option(s): "e m b q ".
0.00/0.04	c ============================[ Problem Statistics ]=============================
0.00/0.04	c |                                                                             |
0.00/0.04	c |  Parsing time:          0.03         s                                      |
0.00/0.04	c |  Number Variables:      231                                                 |
0.00/0.04	c |  Number Constraints:    2707                                                |
0.00/0.04	c ===============================================================================
7.24/5.53	c Remaining time 1799.97 sec.
7.24/5.53	s SATISFIABLE
7.24/5.53	c Solution value = 0.00
7.24/5.53	v -x1 x12 -x2 -x13 -x3 -x14 -x4 -x15 -x5 -x16 -x6 -x17 -x7 -x18 -x8 -x19 -x9 -x20 -x10 -x21 x11 -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 -x132 -x142 -x152 -x162 -x172 -x182 -x192 -x202 -x212 x222 -x122 -x143 -x153 -x163 x173 -x183 -x193 -x203 -x213 -x223 -x123 -x133 -x154 -x164 -x174 -x184 -x194 x204 -x214 -x224 x124 -x134 -x144 -x165 -x175 -x185 -x195 -x205 -x215 -x225 -x125 -x135 -x145 -x155 -x176 x186 -x196 -x206 -x216 -x226 -x126 -x136 -x146 -x156 -x166 -x187 -x197 -x207 x217 -x227 -x127 -x137 x147 -x157 -x167 -x177 -x198 -x208 -x218 -x228 -x128 x138 -x148 -x158 -x168 -x178 -x188 -x209 -x219 -x229 -x129 -x139 -x149 x159 -x169 -x179 -x189 -x199 -x220 -x230 -x130 -x140 -x150 -x160 x170 -x180 -x190 -x200 -x210 -x231 -x131 -x141 -x151 -x161 -x171 -x181 -x191 x201 -x211 -x221
7.24/5.53	c Total CPU time              : 7.2229 s

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-2696218-1278015155/watcher-2696218-1278015155 -o /tmp/evaluation-result-2696218-1278015155/solver-2696218-1278015155 -C 1800 -W 2000 -M 1800 run HOME/instance-2696218-1278015155.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: 0.07 0.02 0.00 3/106 22503
/proc/meminfo: memFree=1526540/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0

[startup+0.056797 s]
/proc/loadavg: 0.07 0.02 0.00 3/106 22503
/proc/meminfo: memFree=1526540/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101796 s]
/proc/loadavg: 0.07 0.02 0.00 3/106 22503
/proc/meminfo: memFree=1526540/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.300795 s]
/proc/loadavg: 0.07 0.02 0.00 3/106 22503
/proc/meminfo: memFree=1526540/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.700793 s]
/proc/loadavg: 0.07 0.02 0.00 3/106 22503
/proc/meminfo: memFree=1526540/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50079 s]
/proc/loadavg: 0.07 0.02 0.00 2/109 22506
/proc/meminfo: memFree=1514736/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0
[pid=22504] ppid=22503 vsize=40800 CPUtime=1.89
/proc/22504/stat : 22504 (pb_cplex) R 22503 22503 22418 0 -1 4202496 6625 0 0 0 186 3 0 0 17 0 2 0 177119263 41779200 4072 1992294400 134512640 146736320 4288580864 18446744073709551615 144757825 0 0 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/22504/statm: 10200 4072 990 2985 0 6742 0
[pid=22504/tid=22506] ppid=22503 vsize=40800 CPUtime=0.51
/proc/22504/task/22506/stat : 22506 (pb_cplex) R 22503 22503 22418 0 -1 4202560 513 0 0 0 51 0 0 0 21 0 2 0 177119353 41779200 4072 1992294400 134512640 146736320 4288580864 18446744073709551615 136017485 0 2 4096 16387 0 0 0 -1 1 0 0 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 49500

[startup+3.10078 s]
/proc/loadavg: 0.15 0.03 0.01 3/109 22506
/proc/meminfo: memFree=1513248/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0
[pid=22504] ppid=22503 vsize=36652 CPUtime=4.46
/proc/22504/stat : 22504 (pb_cplex) R 22503 22503 22418 0 -1 4202496 7234 0 0 0 441 5 0 0 18 0 1 0 177119263 37531648 3594 1992294400 134512640 146736320 4288580864 18446744073709551615 136935400 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/22504/statm: 9163 3594 995 2985 0 5705 0
Current children cumulated CPU time (s) 4.46
Current children cumulated vsize (KiB) 45352

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

[startup+4.70177 s]
/proc/loadavg: 0.15 0.03 0.01 3/109 22507
/proc/meminfo: memFree=1513868/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0
[pid=22504] ppid=22503 vsize=40184 CPUtime=6.36
/proc/22504/stat : 22504 (pb_cplex) R 22503 22503 22418 0 -1 4202496 8779 0 0 0 631 5 0 0 18 0 2 0 177119263 41148416 4284 1992294400 134512640 146736320 4288580864 18446744073709551615 136007216 0 0 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/22504/statm: 10046 4284 1003 2985 0 6588 0
Current children cumulated CPU time (s) 6.36
Current children cumulated vsize (KiB) 48884

[startup+5.10177 s]
/proc/loadavg: 0.15 0.03 0.01 3/109 22507
/proc/meminfo: memFree=1513868/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0
[pid=22504] ppid=22503 vsize=39056 CPUtime=6.84
/proc/22504/stat : 22504 (pb_cplex) S 22503 22503 22418 0 -1 4202496 8790 0 0 0 679 5 0 0 18 0 2 0 177119263 39993344 4092 1992294400 134512640 146736320 4288580864 18446744073709551615 144580073 0 0 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/22504/statm: 9764 4092 1003 2985 0 6306 0
Current children cumulated CPU time (s) 6.84
Current children cumulated vsize (KiB) 47756

[startup+5.50876 s]
/proc/loadavg: 0.15 0.03 0.01 2/109 22508
/proc/meminfo: memFree=1513124/2059040 swapFree=4139344/4192956
[pid=22503] ppid=22501 vsize=8700 CPUtime=0
/proc/22503/stat : 22503 (run) S 22501 22503 22418 0 -1 4202496 364 0 0 0 0 0 0 0 18 0 1 0 177119263 8908800 248 1992294400 4194304 4922060 140737268711360 18446744073709551615 228898479237 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22503/statm: 2175 248 208 178 0 68 0
[pid=22504] ppid=22503 vsize=39056 CPUtime=7.24
/proc/22504/stat : 22504 (pb_cplex) S 22503 22503 22418 0 -1 4202496 8816 0 0 0 719 5 0 0 18 0 2 0 177119263 39993344 4118 1992294400 134512640 146736320 4288580864 18446744073709551615 144580073 0 0 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/22504/statm: 9764 4118 1003 2985 0 6306 0
[pid=22504/tid=22508] ppid=22503 vsize=39056 CPUtime=0.87
/proc/22504/task/22508/stat : 22508 (pb_cplex) R 22503 22503 22418 0 -1 4202560 571 0 0 0 87 0 0 0 22 0 2 0 177119697 39993344 4118 1992294400 134512640 146736320 4288580864 18446744073709551615 139044585 0 2 4096 16387 0 0 0 -1 0 0 0 0
Current children cumulated CPU time (s) 7.24
Current children cumulated vsize (KiB) 47756

Child status: 0
Real time (s): 5.5425
CPU time (s): 7.28689
CPU user time (s): 7.2259
CPU system time (s): 0.06099
CPU usage (%): 131.473
Max. virtual memory (cumulated for all children) (KiB): 49500

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.2259
system time used= 0.06099
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9212
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= 808
involuntary context switches= 147

runsolver used 0.010998 second user time and 0.040993 second system time

The end

Launcher Data 

Begin job on node005 at 2010-07-01 22:12:35
IDJOB=2696218
IDBENCH=1306
IDSOLVER=1209
FILE ID=node005/2696218-1278015155
PBS_JOBID= 11198749
Free space on /tmp= 62480 MiB

SOLVER NAME= pb_cplex 2010-06-29
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900554375.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2696218-1278015155/watcher-2696218-1278015155 -o /tmp/evaluation-result-2696218-1278015155/solver-2696218-1278015155 -C 1800 -W 2000 -M 1800  run HOME/instance-2696218-1278015155.opb

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

MD5SUM BENCH= 94c9ec489efaf922d51279ebf575f8fa
RANDOM SEED=1928322678

node005.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		: 3000.246
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	: 6000.49
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		: 3000.246
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:       1526944 kB
Buffers:        146468 kB
Cached:         283912 kB
SwapCached:       6268 kB
Active:         198864 kB
Inactive:       244708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1526944 kB
SwapTotal:     4192956 kB
SwapFree:      4139344 kB
Dirty:           16776 kB
Writeback:           0 kB
AnonPages:       11708 kB
Mapped:          11880 kB
Slab:            66588 kB
PageTables:       4168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182864 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= 62464 MiB
End job on node005 at 2010-07-01 22:12:41