Trace number 49858

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 NameAnswerObjective functionCPU timeWall clock time
minisat+ 1.14OPT-1281 0.216966 0.227763

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/submitted-PB06/roussel/factor/
normalized-factor-sizeN=20-sizeP=11-sizeQ=20-900543-max.opb
MD5SUMc49ae2232cc025bcb67a7710817d2f1e
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-1281
Best CPU time to get the best result obtained on this benchmark0.216966
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -1281
Optimality of the best value was proved YES
Number of variables251
Total number of constraints661
Number of constraints which are clauses660
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint220
Number of terms in the objective function 11
Biggest coefficient in the objective function 1024
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 2047
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 536870912
Number of bits of the biggest number in a constraint 30
Biggest sum of numbers in a constraint 2147333568
Number of bits of the biggest sum of numbers31
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00	c Parsing PB file...
0.02	c Converting 662 PB-constraints to clauses...
0.02	c   -- Unit propagations: (none)
0.02	c   -- Detecting intervals from adjacent constraints: #
0.02	c   -- Clauses(.)/Splits(s): ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
0.03	c ---[   0]---> Sorter-cost: 3156     Base: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
0.08	c ==================================[MINISAT+]==================================
0.08	c | Conflicts | Original         | Learnt                           | Progress |
0.08	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.08	c ==============================================================================
0.08	c |         0 |    8557    20198 |    2852       0        0     nan |  0.000 % |
0.10	c |       100 |    8557    20198 |    3137     100     3862    38.6 |  7.509 % |
0.12	c ==============================================================================
0.12	c Found solution: -399
0.12	o -399
0.12	c ---[   0]---> BDD-cost:    6
0.12	c ==================================[MINISAT+]==================================
0.12	c | Conflicts | Original         | Learnt                           | Progress |
0.12	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.12	c ==============================================================================
0.12	c |       154 |    8562    20212 |    2854     154     5987    38.9 |  7.509 % |
0.15	c ==============================================================================
0.15	c Found solution: -703
0.15	o -703
0.15	c ---[   0]---> BDD-cost:    4
0.15	c ==================================[MINISAT+]==================================
0.15	c | Conflicts | Original         | Learnt                           | Progress |
0.15	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.15	c ==============================================================================
0.15	c |       232 |    8568    20226 |    2856     232     8295    35.8 |  7.509 % |
0.17	c |       333 |    8568    20226 |    3141     333    11162    33.5 |  7.559 % |
0.18	c ==============================================================================
0.18	c Found solution: -1159
0.18	o -1159
0.18	c ---[   0]---> BDD-cost:    6
0.18	c ==================================[MINISAT+]==================================
0.18	c | Conflicts | Original         | Learnt                           | Progress |
0.18	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.18	c ==============================================================================
0.18	c |       346 |    5414    12917 |    1804     322    10700    33.2 |  7.559 % |
0.20	c |       447 |    4744    11353 |    1984     132     3502    26.5 | 44.977 % |
0.22	c ==============================================================================
0.22	c Found solution: -1281
0.22	o -1281
0.22	c Optimal solution: -1281
0.22	s OPTIMUM FOUND
0.22	v x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 x9 -x10 x11 x32 x12 x33 x13 x34 x14 x35 x15 x36 x16 x37 x17 -x38 -x18 x39 x19 -x40 -x20 x41 x21 -x42 -x22
0.22	v -x43 -x23 -x44 -x24 -x45 -x25 -x46 -x26 -x47 -x27 -x48 -x28 -x49 -x29 -x50 -x30 -x51 -x31 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79
0.22	v -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
0.22	v -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125
0.22	v -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146
0.22	v -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167
0.22	v -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188
0.22	v -x189 -x190 -x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209
0.22	v -x210 -x211 x212 x213 x214 x215 x216 x217 -x218 x219 -x220 x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230 -x231
0.22	v -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x250 -x251 x52
0.22	v x53 x54 x55 x56 x57 -x58 x59 -x60 x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71
0.22	c _______________________________________________________________________________
0.22	c 
0.22	c restarts              : 7
0.22	c conflicts             : 505            (2349 /sec)
0.22	c decisions             : 651            (3028 /sec)
0.22	c propagations          : 0              (0 /sec)
0.22	c inspects              : 0              (0 /sec)
0.22	c CPU time              : 0.214967 s
0.22	c _______________________________________________________________________________

Verifier Data (download as text)

OK	-1281

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

runsolver version 3.0.1 (c) roussel@cril.univ-artois.fr

Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
command line: runsolver --timestamp -w ROOT/results/node91/watcher-49858-1149932214 -o ROOT/results/node91/solver-49858-1149932214 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node91/49858-1149932214/instance-49858-1149932214.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.99 0.97 0.91 3/68 8893
/proc/meminfo: memFree=1587952/2055892 swapFree=4085376/4096564
[pid=8893] ppid=8891 vsize=1048 CPUtime=0
/proc/8893/stat : 8893 (minisat+) R 8891 8893 8847 0 -1 4194304 104 0 0 0 0 0 0 0 19 0 1 0 258860372 1073152 90 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135007481 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8893/statm: 262 90 74 215 0 44 0

Child status: 30
Real time (s): 0.227763
CPU time (s): 0.216966
CPU user time (s): 0.215967
CPU system time (s): 0.000999
CPU usage (%): 95.2595
Max. virtual memory (cumulated for all children) (Kb): 0
The end

Launcher Data (download as text)

Begin job on node91 on Sat Jun 10 09:36:54 UTC 2006


FILE ID= 49858-1149932214

PBS_JOBID= 386292

BENCH NAME= HOME/pub/bench/PB06/final/normalized-PB06/OPT-BIGINT/submitted-PB06/roussel/factor/normalized-factor-sizeN=20-sizeP=11-sizeQ=20-900543-max.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node91/49858-1149932214/instance-49858-1149932214.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node91/watcher-49858-1149932214 -o ROOT/results/node91/solver-49858-1149932214 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node91/49858-1149932214/instance-49858-1149932214.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  c49ae2232cc025bcb67a7710817d2f1e

RANDOM SEED= 225521933


/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		: 3000.279
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	: 6006.18
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		: 3000.279
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	: 5999.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1588160 kB
Buffers:         38784 kB
Cached:         355852 kB
SwapCached:       2348 kB
Active:          36024 kB
Inactive:       367252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1588160 kB
SwapTotal:     4096564 kB
SwapFree:      4085376 kB
Dirty:             160 kB
Writeback:           0 kB
Mapped:          16616 kB
Slab:            51048 kB
Committed_AS:   757216 kB
PageTables:       1288 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node91 on Sat Jun 10 09:36:55 UTC 2006