Trace number 2668944

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 0.351946 0.351192

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900571131.opb
MD5SUM4a2e7ec029cc013a596bc8fa4c9afc09
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 benchmark0.427934
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 639
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
0.29/0.32	c 0.287956 10.0664 1288 2651
0.29/0.32	s SATISFIABLE
0.29/0.32	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-2668944-1276432427/watcher-2668944-1276432427 -o /tmp/evaluation-result-2668944-1276432427/solver-2668944-1276432427 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668944-1276432427.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 1.00 1.09 3/106 22268
/proc/meminfo: memFree=1842568/2059040 swapFree=4140380/4192956
[pid=22268] ppid=22266 vsize=2208 CPUtime=0
/proc/22268/stat : 22268 (pbct) R 22266 22268 21207 0 -1 4202496 253 0 0 0 0 0 0 0 18 0 1 0 18844421 2260992 176 1992294400 134512640 136485738 4288537392 18446744073709551615 135418929 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22268/statm: 552 176 156 482 0 68 0

[startup+0.102778 s]
/proc/loadavg: 0.92 1.00 1.09 3/106 22268
/proc/meminfo: memFree=1842568/2059040 swapFree=4140380/4192956
[pid=22268] ppid=22266 vsize=10040 CPUtime=0.09
/proc/22268/stat : 22268 (pbct) R 22266 22268 21207 0 -1 4202496 2127 0 0 0 9 0 0 0 20 0 1 0 18844421 10280960 2048 1992294400 134512640 136485738 4288537392 18446744073709551615 135681217 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22268/statm: 2510 2048 208 482 0 2026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10040

[startup+0.200788 s]
/proc/loadavg: 0.92 1.00 1.09 3/106 22268
/proc/meminfo: memFree=1842568/2059040 swapFree=4140380/4192956
[pid=22268] ppid=22266 vsize=10172 CPUtime=0.19
/proc/22268/stat : 22268 (pbct) R 22266 22268 21207 0 -1 4202496 2197 0 0 0 18 1 0 0 20 0 1 0 18844421 10416128 2118 1992294400 134512640 136485738 4288537392 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22268/statm: 2543 2119 223 482 0 2059 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 10172

[startup+0.300799 s]
/proc/loadavg: 0.92 1.00 1.09 3/106 22268
/proc/meminfo: memFree=1842568/2059040 swapFree=4140380/4192956
[pid=22268] ppid=22266 vsize=10304 CPUtime=0.29
/proc/22268/stat : 22268 (pbct) R 22266 22268 21207 0 -1 4202496 2220 0 0 0 26 3 0 0 20 0 1 0 18844421 10551296 2141 1992294400 134512640 136485738 4288537392 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22268/statm: 2576 2141 223 482 0 2092 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10304

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

[startup+0.300799 s]
/proc/loadavg: 0.92 1.00 1.09 3/106 22268
/proc/meminfo: memFree=1842568/2059040 swapFree=4140380/4192956
[pid=22268] ppid=22266 vsize=10304 CPUtime=0.29
/proc/22268/stat : 22268 (pbct) R 22266 22268 21207 0 -1 4202496 2220 0 0 0 26 3 0 0 20 0 1 0 18844421 10551296 2141 1992294400 134512640 136485738 4288537392 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22268/statm: 2576 2141 223 482 0 2092 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10304

Child status: 0
Real time (s): 0.351192
CPU time (s): 0.351946
CPU user time (s): 0.312952
CPU system time (s): 0.038994
CPU usage (%): 100.215
Max. virtual memory (cumulated for all children) (KiB): 10304

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.312952
system time used= 0.038994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2248
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= 3

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-13 14:33:47
IDJOB=2668944
IDBENCH=1280
IDSOLVER=1170
FILE ID=node009/2668944-1276432427
PBS_JOBID= 11173311
Free space on /tmp= 62444 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900571131.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668944-1276432427/watcher-2668944-1276432427 -o /tmp/evaluation-result-2668944-1276432427/solver-2668944-1276432427 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668944-1276432427.opb

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

MD5SUM BENCH= 4a2e7ec029cc013a596bc8fa4c9afc09
RANDOM SEED=2111531348

node009.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		: 3000.199
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	: 6000.39
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		: 3000.199
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:       1843096 kB
Buffers:         30620 kB
Cached:         106832 kB
SwapCached:       6004 kB
Active:          90564 kB
Inactive:        59664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1843096 kB
SwapTotal:     4192956 kB
SwapFree:      4140380 kB
Dirty:            1992 kB
Writeback:           0 kB
AnonPages:       10876 kB
Mapped:          13016 kB
Slab:            43908 kB
PageTables:       4032 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181308 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= 62440 MiB
End job on node009 at 2010-06-13 14:33:47