Trace number 2668987

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 1.91471 1.91462

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900577000.opb
MD5SUM9bb38ed497234135fa89a263cb80cd03
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 benchmark0.422935
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 637
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/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.02/0.04	c constraints 23/0 clauses 2684/0 units 0
0.02/0.04	c vars 231
1.79/1.88	c 1.67874 10.4453 2242 13379
1.79/1.88	s SATISFIABLE
1.79/1.88	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 -x170 -x171 -x172 -x173 -x174 -x175 x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 x185 -x186 -x187 -x188 -x189 -x190 -x191 -x192 -x193 x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 x203 -x204 -x205 -x206 -x207 -x208 -x209 -x210 -x211 -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 x221 -x222 -x223 -x224 -x225 -x226 x227 -x228 -x229 -x230 -x231

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-2668987-1276433030/watcher-2668987-1276433030 -o /tmp/evaluation-result-2668987-1276433030/solver-2668987-1276433030 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668987-1276433030.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: 0.92 0.98 0.99 3/106 25011
/proc/meminfo: memFree=1713032/2059040 swapFree=4136464/4192956
[pid=25011] ppid=25009 vsize=2208 CPUtime=0
/proc/25011/stat : 25011 (pbct) R 25009 25011 23834 0 -1 4202496 254 0 0 0 0 0 0 0 20 0 1 0 18907075 2260992 176 1992294400 134512640 136485738 4292467536 18446744073709551615 135416497 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25011/statm: 552 176 156 482 0 68 0

[startup+0.028262 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 25011
/proc/meminfo: memFree=1713032/2059040 swapFree=4136464/4192956
[pid=25011] ppid=25009 vsize=2208 CPUtime=0.02
/proc/25011/stat : 25011 (pbct) R 25009 25011 23834 0 -1 4202496 266 0 0 0 2 0 0 0 20 0 1 0 18907075 2260992 188 1992294400 134512640 136485738 4292467536 18446744073709551615 135860662 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25011/statm: 552 188 156 482 0 68 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2208

[startup+0.10127 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 25011
/proc/meminfo: memFree=1713032/2059040 swapFree=4136464/4192956
[pid=25011] ppid=25009 vsize=9912 CPUtime=0.09
/proc/25011/stat : 25011 (pbct) R 25009 25011 23834 0 -1 4202496 2123 0 0 0 9 0 0 0 20 0 1 0 18907075 10149888 2043 1992294400 134512640 136485738 4292467536 18446744073709551615 134946067 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25011/statm: 2478 2043 208 482 0 1994 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9912

[startup+0.301295 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 25011
/proc/meminfo: memFree=1713032/2059040 swapFree=4136464/4192956
[pid=25011] ppid=25009 vsize=10300 CPUtime=0.29
/proc/25011/stat : 25011 (pbct) R 25009 25011 23834 0 -1 4202496 2220 0 0 0 27 2 0 0 20 0 1 0 18907075 10547200 2140 1992294400 134512640 136485738 4292467536 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25011/statm: 2575 2140 223 482 0 2091 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10300

[startup+0.701341 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 25011
/proc/meminfo: memFree=1713032/2059040 swapFree=4136464/4192956
[pid=25011] ppid=25009 vsize=10432 CPUtime=0.69
/proc/25011/stat : 25011 (pbct) R 25009 25011 23834 0 -1 4202496 2266 0 0 0 63 6 0 0 20 0 1 0 18907075 10682368 2186 1992294400 134512640 136485738 4292467536 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25011/statm: 2608 2186 223 482 0 2124 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10432

[startup+1.50144 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 25012
/proc/meminfo: memFree=1705088/2059040 swapFree=4136464/4192956
[pid=25011] ppid=25009 vsize=10560 CPUtime=1.49
/proc/25011/stat : 25011 (pbct) R 25009 25011 23834 0 -1 4202496 2298 0 0 0 134 15 0 0 22 0 1 0 18907075 10813440 2218 1992294400 134512640 136485738 4292467536 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25011/statm: 2640 2218 223 482 0 2156 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10560

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

[startup+1.90148 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 25012
/proc/meminfo: memFree=1705088/2059040 swapFree=4136464/4192956
[pid=25011] ppid=25009 vsize=9648 CPUtime=1.89
/proc/25011/stat : 25011 (pbct) R 25009 25011 23834 0 -1 4202496 2345 0 0 0 169 20 0 0 25 0 1 0 18907075 9879552 2080 1992294400 134512640 136485738 4292467536 18446744073709551615 134720163 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25011/statm: 2412 2080 245 482 0 1928 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 9648

Child status: 0
Real time (s): 1.91462
CPU time (s): 1.91471
CPU user time (s): 1.70474
CPU system time (s): 0.209968
CPU usage (%): 100.004
Max. virtual memory (cumulated for all children) (KiB): 10692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.70474
system time used= 0.209968
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2346
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= 2

runsolver used 0.003999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node001 at 2010-06-13 14:43:50
IDJOB=2668987
IDBENCH=1329
IDSOLVER=1170
FILE ID=node001/2668987-1276433030
PBS_JOBID= 11173305
Free space on /tmp= 62392 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900577000.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668987-1276433030/watcher-2668987-1276433030 -o /tmp/evaluation-result-2668987-1276433030/solver-2668987-1276433030 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668987-1276433030.opb

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

MD5SUM BENCH= 9bb38ed497234135fa89a263cb80cd03
RANDOM SEED=1280109729

node001.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		: 3000.202
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		: 3000.202
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1713560 kB
Buffers:        104748 kB
Cached:         154168 kB
SwapCached:      16988 kB
Active:         139100 kB
Inactive:       139940 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1713560 kB
SwapTotal:     4192956 kB
SwapFree:      4136464 kB
Dirty:            2028 kB
Writeback:           0 kB
AnonPages:       10968 kB
Mapped:           9244 kB
Slab:            44716 kB
PageTables:       3976 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181360 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= 62388 MiB
End job on node001 at 2010-06-13 14:43:53