Trace number 2682605

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 0.1 fixedSAT 0.146977 0.147628

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900574974.opb
MD5SUM78c4eb026aae2b7f6add2badfbe0cd2c
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 benchmark0.069989
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 663
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.02/0.03	c constraints 23/0 clauses 2684/0 units 0
0.02/0.03	c vars 231
0.09/0.12	c 0.108983 9.86719 278 965
0.09/0.12	s SATISFIABLE
0.09/0.12	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-2682605-1277475977/watcher-2682605-1277475977 -o /tmp/evaluation-result-2682605-1277475977/solver-2682605-1277475977 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682605-1277475977.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 0.68 0.30 3/106 28061
/proc/meminfo: memFree=1750244/2059040 swapFree=4140528/4192956
[pid=28061] ppid=28059 vsize=2136 CPUtime=0
/proc/28061/stat : 28061 (pbct) R 28059 28061 27972 0 -1 4202496 246 0 0 0 0 0 0 0 24 0 1 0 88889273 2187264 165 1992294400 134512640 136421960 4293560928 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28061/statm: 534 165 144 467 0 65 0

[startup+0.0260461 s]
/proc/loadavg: 0.99 0.68 0.30 3/106 28061
/proc/meminfo: memFree=1750244/2059040 swapFree=4140528/4192956
[pid=28061] ppid=28059 vsize=2136 CPUtime=0.02
/proc/28061/stat : 28061 (pbct) R 28059 28061 27972 0 -1 4202496 261 0 0 0 2 0 0 0 24 0 1 0 88889273 2187264 180 1992294400 134512640 136421960 4293560928 18446744073709551615 135818268 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28061/statm: 534 180 144 467 0 65 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2136

[startup+0.101052 s]
/proc/loadavg: 0.99 0.68 0.30 3/106 28061
/proc/meminfo: memFree=1750244/2059040 swapFree=4140528/4192956
[pid=28061] ppid=28059 vsize=10100 CPUtime=0.09
/proc/28061/stat : 28061 (pbct) R 28059 28061 27972 0 -1 4202496 2173 0 0 0 9 0 0 0 24 0 1 0 88889273 10342400 2090 1992294400 134512640 136421960 4293560928 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28061/statm: 2525 2090 213 467 0 2056 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10100

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

Child status: 0
Real time (s): 0.147628
CPU time (s): 0.146977
CPU user time (s): 0.133979
CPU system time (s): 0.012998
CPU usage (%): 99.559
Max. virtual memory (cumulated for all children) (KiB): 10100

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.133979
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2205
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= 1

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node050 at 2010-06-25 16:26:17
IDJOB=2682605
IDBENCH=1354
IDSOLVER=1192
FILE ID=node050/2682605-1277475977
PBS_JOBID= 11190496
Free space on /tmp= 62380 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900574974.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682605-1277475977/watcher-2682605-1277475977 -o /tmp/evaluation-result-2682605-1277475977/solver-2682605-1277475977 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682605-1277475977.opb

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

MD5SUM BENCH= 78c4eb026aae2b7f6add2badfbe0cd2c
RANDOM SEED=672735556

node050.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		: 3000.215
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	: 6000.43
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		: 3000.215
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:       1750772 kB
Buffers:         56644 kB
Cached:         151940 kB
SwapCached:       5664 kB
Active:          70520 kB
Inactive:       151364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1750772 kB
SwapTotal:     4192956 kB
SwapFree:      4140528 kB
Dirty:            1996 kB
Writeback:           0 kB
AnonPages:       11916 kB
Mapped:          11984 kB
Slab:            64532 kB
PageTables:       4228 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182520 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= 62380 MiB
End job on node050 at 2010-06-25 16:26:17