Trace number 2668998

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 1.13483 1.13522

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900669299.opb
MD5SUMa725f6ee372d31d579e8cd9c5db864a1
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 benchmark0.072988
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 691
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
0.00/0.04	c constraints 23/0 clauses 2684/0 units 0
0.00/0.04	c vars 231
1.00/1.10	c 0.954854 10.3125 1882 9643
1.00/1.10	s SATISFIABLE
1.00/1.10	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-2668998-1276433145/watcher-2668998-1276433145 -o /tmp/evaluation-result-2668998-1276433145/solver-2668998-1276433145 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668998-1276433145.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: 0.99 0.97 0.98 3/106 23785
/proc/meminfo: memFree=1830032/2059040 swapFree=4140476/4192956
[pid=23785] ppid=23783 vsize=2208 CPUtime=0
/proc/23785/stat : 23785 (pbct) R 23783 23785 23028 0 -1 4202496 254 0 0 0 0 0 0 0 20 0 1 0 18917986 2260992 176 1992294400 134512640 136485738 4291633792 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23785/statm: 552 176 156 482 0 68 0

[startup+0.0665069 s]
/proc/loadavg: 0.99 0.97 0.98 3/106 23785
/proc/meminfo: memFree=1830032/2059040 swapFree=4140476/4192956
[pid=23785] ppid=23783 vsize=5344 CPUtime=0.05
/proc/23785/stat : 23785 (pbct) R 23783 23785 23028 0 -1 4202496 1018 0 0 0 5 0 0 0 20 0 1 0 18917986 5472256 940 1992294400 134512640 136485738 4291633792 18446744073709551615 134725310 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23785/statm: 1336 941 196 482 0 852 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5344

[startup+0.100513 s]
/proc/loadavg: 0.99 0.97 0.98 3/106 23785
/proc/meminfo: memFree=1830032/2059040 swapFree=4140476/4192956
[pid=23785] ppid=23783 vsize=9912 CPUtime=0.09
/proc/23785/stat : 23785 (pbct) R 23783 23785 23028 0 -1 4202496 2123 0 0 0 8 1 0 0 20 0 1 0 18917986 10149888 2043 1992294400 134512640 136485738 4291633792 18446744073709551615 134905243 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23785/statm: 2478 2043 208 482 0 1994 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9912

[startup+0.300549 s]
/proc/loadavg: 0.99 0.97 0.98 3/106 23785
/proc/meminfo: memFree=1830032/2059040 swapFree=4140476/4192956
[pid=23785] ppid=23783 vsize=10300 CPUtime=0.29
/proc/23785/stat : 23785 (pbct) R 23783 23785 23028 0 -1 4202496 2218 0 0 0 25 4 0 0 20 0 1 0 18917986 10547200 2138 1992294400 134512640 136485738 4291633792 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23785/statm: 2575 2138 223 482 0 2091 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10300

[startup+0.700624 s]
/proc/loadavg: 0.99 0.97 0.98 3/106 23785
/proc/meminfo: memFree=1830032/2059040 swapFree=4140476/4192956
[pid=23785] ppid=23783 vsize=10556 CPUtime=0.69
/proc/23785/stat : 23785 (pbct) R 23783 23785 23028 0 -1 4202496 2269 0 0 0 59 10 0 0 21 0 1 0 18917986 10809344 2189 1992294400 134512640 136485738 4291633792 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23785/statm: 2639 2189 223 482 0 2155 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10556

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

[startup+1.1087 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23786
/proc/meminfo: memFree=1821964/2059040 swapFree=4140476/4192956
[pid=23785] ppid=23783 vsize=10036 CPUtime=1.1
/proc/23785/stat : 23785 (pbct) R 23783 23785 23028 0 -1 4202496 2308 0 0 0 95 15 0 0 22 0 1 0 18917986 10276864 2097 1992294400 134512640 136485738 4291633792 18446744073709551615 135844831 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23785/statm: 2509 2097 244 482 0 2025 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 10036

Child status: 0
Real time (s): 1.13522
CPU time (s): 1.13483
CPU user time (s): 0.979851
CPU system time (s): 0.154976
CPU usage (%): 99.9657
Max. virtual memory (cumulated for all children) (KiB): 10556

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.979851
system time used= 0.154976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2310
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= 13

runsolver used 0.007998 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node007 at 2010-06-13 14:45:45
IDJOB=2668998
IDBENCH=1341
IDSOLVER=1170
FILE ID=node007/2668998-1276433145
PBS_JOBID= 11173317
Free space on /tmp= 62456 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900669299.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668998-1276433145/watcher-2668998-1276433145 -o /tmp/evaluation-result-2668998-1276433145/solver-2668998-1276433145 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668998-1276433145.opb

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

MD5SUM BENCH= a725f6ee372d31d579e8cd9c5db864a1
RANDOM SEED=1887775626

node007.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1830560 kB
Buffers:         25876 kB
Cached:         123216 kB
SwapCached:       6692 kB
Active:         102776 kB
Inactive:        59900 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1830560 kB
SwapTotal:     4192956 kB
SwapFree:      4140476 kB
Dirty:            1988 kB
Writeback:           0 kB
AnonPages:       11128 kB
Mapped:          13028 kB
Slab:            44072 kB
PageTables:       4056 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182100 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= 62452 MiB
End job on node007 at 2010-06-13 14:45:47