Trace number 32325

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
wildcat-skc 0.8.0SAT 0.234963 0.239395

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
prestwich/armies/normalized-army10.14ls.opb
MD5SUM8999d4ddd4825a5d620fe0a3c798bc24
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 benchmark0.234963
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables316
Total number of constraints476
Number of constraints which are clauses274
Number of constraints which are cardinality constraints (but not clauses)2
Number of constraints which are nor clauses,nor cardinality constraints200
Minimum length of a constraint2
Maximum length of a constraint100
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 14
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 114
Number of bits of the biggest sum of numbers7
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 
0.00	c wildcat-skc (VERSION 0.8.0-lite-skc-devel)
0.00	c Developed by L. Liu  and M. Truszczynski 
0.00	c Last built on Tue 23 May 2006 09:27:47 PM EDT
0.00	c 
0.00	c ROOT/solvers/PB/PB06final/user3/wildcat-skc ROOT/tmp/node18/32325-1149205024/instance-32325-1149205024.opb 541903434 
0.00	c =================================== BEGIN ===================================
0.00	c 
0.00	c Random Number Seed: 541903434
0.00	c Noise: 0.1 (10 : 100) 
0.23	c Starting searching:
0.23	c phase 1 ... vc 
0.23	s SATISFIABLE
0.23	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
0.23	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 -x56
0.23	v -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
0.23	v -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 x100 -x101 -x102 -x103 -x104 -x105 -x106
0.23	v -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 x118 -x119 -x120 -x121 -x122 x123 -x124 x125 -x126 -x127
0.23	v -x128 -x129 -x130 -x131 -x132 x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 x141 -x142 x143 -x144 x145 -x146 -x147 -x148
0.23	v -x149 -x150 -x151 -x152 -x153 -x154 x155 -x156 -x157 -x158 -x159 -x160 x161 -x162 x163 -x164 -x165 -x166 -x167 -x168 -x169
0.23	v -x170 -x171 -x172 x173 -x174 x175 -x176 -x177 -x178 -x179 -x180 x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x190
0.23	v -x191 -x192 x193 -x194 x195 -x196 -x197 -x198 -x199 -x200 x201 -x202 x203 -x204 x205 -x206 x207 -x208 x209 -x210 x211 -x212
0.23	v -x213 x214 -x215 x216 -x217 x218 -x219 x220 -x221 x222 -x223 x224 -x225 x226 x227 -x228 x229 -x230 x231 -x232 -x233 x234 -x235
0.23	v x236 x237 -x238 x239 -x240 -x241 x242 -x243 x244 -x245 x246 -x247 x248 -x249 x250 -x251 x252 -x253 x254 -x255 x256 -x257 x258
0.23	v -x259 x260 -x261 -x262 -x263 -x264 -x265 -x266 x267 -x268 x269 -x270 x271 -x272 x273 -x274 -x275 x276 -x277 x278 -x279 x280
0.23	v x281 -x282 x283 -x284 -x285 x286 x287 -x288 -x289 x290 -x291 x292 -x293 x294 -x295 -x296 -x297 -x298 -x299 -x300 x301 -x302
0.23	v x303 -x304 x305 -x306 x307 -x308 x309 -x310 x311 -x312 x313 -x314 x315 -x316
0.23	c Total Number of Positive Atoms : 80
0.23	c 
0.23	c During searching:         0.225796 seconds elapsed.
0.23	c CPU time spent:           0.23 seconds.
0.23	c 
0.23	c =================================== END =====================================
0.23	c

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/node18/watcher-32325-1149205024 -o ROOT/results/node18/solver-32325-1149205024 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user3/wildcat-skc ROOT/tmp/node18/32325-1149205024/instance-32325-1149205024.opb 541903434 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.89 0.49 0.33 2/64 23207
/proc/meminfo: memFree=1358368/2055920 swapFree=4180888/4192956
[pid=23207] ppid=23205 vsize=6532 CPUtime=0
/proc/23207/stat : 23207 (wildcat-skc) R 23205 23207 23162 0 -1 4194304 279 0 0 0 0 0 0 0 18 0 1 0 186165385 6688768 263 18446744073709551615 134512640 135438821 4294956656 18446744073709551615 135002082 0 0 4096 16386 0 0 0 17 1 0 0
/proc/23207/statm: 1633 267 110 226 0 1404 0

Child status: 0
Real time (s): 0.239395
CPU time (s): 0.234963
CPU user time (s): 0.232964
CPU system time (s): 0.001999
CPU usage (%): 98.1486
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node18 on Thu Jun  1 23:37:04 UTC 2006


FILE ID= 32325-1149205024

PBS_JOBID= 293090

BENCH NAME= ROOT/tmp/node18/32325-1149205024/instance-32325-1149205024.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user3/wildcat-skc ROOT/tmp/node18/32325-1149205024/instance-32325-1149205024.opb 541903434
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-32325-1149205024 -o ROOT/results/node18/solver-32325-1149205024 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user3/wildcat-skc ROOT/tmp/node18/32325-1149205024/instance-32325-1149205024.opb 541903434

MD5SUM SOLVER= e3d27fcb27e96c4c5fdaee74465b047d
MD5SUM BENCH=  8999d4ddd4825a5d620fe0a3c798bc24

RANDOM SEED= 541903434


/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		: 3000.216
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	: 5931.00
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		: 3000.216
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1358576 kB
Buffers:         38792 kB
Cached:         582640 kB
SwapCached:       3828 kB
Active:         245900 kB
Inactive:       384276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1358576 kB
SwapTotal:     4192956 kB
SwapFree:      4180888 kB
Dirty:             200 kB
Writeback:           0 kB
Mapped:          14668 kB
Slab:            53220 kB
Committed_AS:   189708 kB
PageTables:       1416 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node18 on Thu Jun  1 23:37:05 UTC 2006