Trace number 36124

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, and are wall clock time (not CPU 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
Pueblo 1.4SAT 17.5673 17.5798

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900567003.opb
MD5SUM2c89f98280dbfe67701e28e9614a6259
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark1.44478
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 715
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 (download as text)

0.00	c Pueblo version 1.4 (September 2005)
0.00	c Developed @ University of Michigan, Ann Arbor, MI
0.00	c  by Hossein Sheini
0.04	c starting to Solve
0.04	c #variables read: 231 - #constraints read: 2707
17.57	c total time              : 17.56 s
17.57	s SATISFIABLE
17.57	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
17.57	v -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
17.57	v -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
17.57	v -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
17.57	v -x107 -x108 x109 -x110 -x111 -x112 -x113 x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x132 -x142 -x152 -x162 -x172 -x182
17.57	v x192 -x202 -x212 -x222 -x122 -x143 -x153 -x163 -x173 -x183 -x193 -x203 -x213 x223 -x123 -x133 -x154 x164 -x174 -x184 -x194
17.57	v -x204 -x214 -x224 -x124 -x134 -x144 -x165 -x175 -x185 -x195 -x205 x215 -x225 -x125 x135 -x145 -x155 -x176 -x186 -x196 -x206
17.57	v -x216 -x226 -x126 -x136 -x146 -x156 -x166 x187 -x197 -x207 -x217 -x227 -x127 -x137 x147 -x157 -x167 -x177 -x198 -x208 -x218
17.57	v -x228 -x128 -x138 -x148 -x158 -x168 -x178 -x188 x209 -x219 -x229 -x129 -x139 -x149 x159 -x169 -x179 -x189 -x199 -x220 -x230
17.57	v -x130 -x140 -x150 -x160 -x170 x180 -x190 -x200 -x210 -x231 x131 -x141 -x151 -x161 -x171 -x181 -x191 -x201 -x211 -x221

Verifier Data (download as text)

OK	0

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node83/watcher-36124-1149220053 -o ROOT/results/node83/solver-36124-1149220053 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user8/Pueblo ROOT/tmp/node83/36124-1149220053/instance-36124-1149220053.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.97 0.93 3/67 21848
/proc/meminfo: memFree=1629280/2055888 swapFree=4085416/4096564
[pid=21848] ppid=21846 vsize=18544 CPUtime=0
/proc/21848/stat : 21848 (runsolver) R 21846 21848 21803 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 187644684 18989056 278 18446744073709551615 4194304 4262084 548682069056 18446744073709551615 242290848791 0 0 4096 24578 0 0 0 17 1 0 0
/proc/21848/statm: 4636 278 242 16 0 2626 0

[startup+10.0033 s]
/proc/loadavg: 0.93 0.97 0.93 2/67 21848
/proc/meminfo: memFree=1627104/2055888 swapFree=4085416/4096564
[pid=21848] ppid=21846 vsize=4488 CPUtime=9.99
/proc/21848/stat : 21848 (Pueblo) R 21846 21848 21803 0 -1 4194304 769 0 0 0 999 0 0 0 25 0 1 0 187644684 4595712 741 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 134528222 0 0 4096 0 0 0 0 17 1 0 0
/proc/21848/statm: 1122 741 205 16 0 562 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 4488

Child status: 10
Real time (s): 17.5798
CPU time (s): 17.5673
CPU user time (s): 17.5633
CPU system time (s): 0.003999
CPU usage (%): 99.9293
Max. virtual memory (cumulated for all children) (Kb): 4488

Launcher Data (download as text)

Begin job on node83 on Fri Jun  2 03:47:33 UTC 2006


FILE ID= 36124-1149220053

PBS_JOBID= 295207

BENCH NAME= ROOT/tmp/node83/36124-1149220053/instance-36124-1149220053.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user8/Pueblo ROOT/tmp/node83/36124-1149220053/instance-36124-1149220053.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node83/watcher-36124-1149220053 -o ROOT/results/node83/solver-36124-1149220053 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user8/Pueblo ROOT/tmp/node83/36124-1149220053/instance-36124-1149220053.opb

MD5SUM SOLVER= 80c24de60e85bc4a9ec18ca4764e7dff
MD5SUM BENCH=  2c89f98280dbfe67701e28e9614a6259

RANDOM SEED= 920728932


/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		: 3000.265
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6006.16
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		: 3000.265
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5999.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1629552 kB
Buffers:         28736 kB
Cached:         323816 kB
SwapCached:       2884 kB
Active:          90828 kB
Inactive:       270920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1629552 kB
SwapTotal:     4096564 kB
SwapFree:      4085416 kB
Dirty:             148 kB
Writeback:           0 kB
Mapped:          16884 kB
Slab:            51324 kB
Committed_AS:   254572 kB
PageTables:       1284 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node83 on Fri Jun  2 03:47:51 UTC 2006