Trace number 3375024

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
MPhaseSAT64 2011-05-14 (fixed)SAT 0.747885 0.748785

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S1946851065-023.SATISFIABLE.cnf
MD5SUM96b76a29d6976e3cb9111f511d66ef22
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.001999
Satisfiable
(Un)Satisfiability was proved
Number of variables350
Number of clauses1491
Sum of the clauses size4473
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31491
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.69/0.74	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.69/0.74	c input CNF file=HOME/instance-3375024-1305449194.cnf 
0.69/0.74	c Clause#=1491  var#=350  ratio=4 
0.69/0.74	c Simplified clause#=1491 
0.69/0.74	c XOR_varElimination deleted var#=1 clauses#=1484 
0.69/0.74	c inative var#=0 
0.69/0.74	c free var#=335  
0.69/0.74	c local search on 
0.69/0.74	c A solution found by local search 
0.69/0.74	c unfixed var#=14 var#=350 
0.69/0.74	c verified 
0.69/0.74	c 
0.69/0.74	s SATISFIABLE
0.69/0.74	v 1 -2 -3 -4 -5 6 -7 -8 9 -10 11 12 13 -14 -15 -16 17 18 -19 -20 21 -22 23 24 25 -26 -27 -28 -29 30 -31 32 -33 34 35 -36 -37 -38 39 40 -41 42 43 -44 -45 46 -47 -48 -49 -50 -51 52 53 54 55 56 -57 -58 59 60 61 -62 63 -64 65 66 67 68 -69 70 71 -72 -73 74 -75 -76 77 78 -79 80 -81 -82 83 -84 -85 86 87 88 89 90 -91 -92 -93 94 95 96 97 -98 -99 100 -101 -102 103 -104 -105 -106 -107 108 109 -110 111 -112 -113 114 115 -116 117 118 -119 -120 -121 122 123 124 -125 126 -127 128 129 130 -131 132 -133 134 -135 -136 -137 -138 -139 -140 -141 142 143 -144 -145 -146 -147 148 149 -150 -151 -152 153 154 -155 -156 -157 -158 -160 -161 -162 -163 164 -165 166 -167 -168 169 170 171 172 173 174 175 -176 177 -178 179 -180 -181 182 -183 -184 -185 -186 -187 -188 -189 190 -191 192 193 -194 195 196 -197 -198 -199 -200 201 -202 203 204 -205 -206 -207 208 -209 210 211 212 213 -214 215 -216 -217 218 219 -220 221 -222 223 224 -225 -226 227 228 -229 230 231 232 -233 -234 235 -236 -237 238 239 240 241 -242 243 -244 -245 246 -247 -248 -249 250 251 252 253 -254 -255 -256 -257 258 259 260 -261 262 263 -264 265 -266 -267 268 -270 -271 -272 273 -274 275 -276 277 -278 279 -280 281 -282 -283 284 285 -286 -287 288 289 -290 -291 292 -293 294 -295 -296 -297 -298 299 -300 301 302 -303 304 305 306 307 -308 309 -310 -311 312 313 -314 -315 -316 317 -318 -319 320 321 322 -323 324 -325 -326 -327 -328 329 330 -331 332 333 -334 335 -336 -337 338 -339 340 341 342 -343 344 -345 346 347 -348 349 -350 
0.69/0.74	v 0
0.69/0.74	c 
0.69/0.74	c  Running time=0.746886

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3375024-1305449194/watcher-3375024-1305449194 -o /tmp/evaluation-result-3375024-1305449194/solver-3375024-1305449194 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375024-1305449194.cnf 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 3.79 4.03 4.96 5/303 15521
/proc/meminfo: memFree=16676720/32951124 swapFree=52307768/67111528
[pid=15521] ppid=15519 vsize=12144 CPUtime=0 cores=1,3
/proc/15521/stat : 15521 (MPhaseSAT64) R 15519 15521 15311 0 -1 4202496 462 0 0 0 0 0 0 0 25 0 1 0 656522213 12435456 403 33554432000 4194304 4479436 140736563864992 18446744073709551615 218370651102 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15521/statm: 3036 403 293 70 0 156 0

[startup+0.030916 s]
/proc/loadavg: 3.79 4.03 4.96 5/303 15521
/proc/meminfo: memFree=16676720/32951124 swapFree=52307768/67111528
[pid=15521] ppid=15519 vsize=12344 CPUtime=0.02 cores=1,3
/proc/15521/stat : 15521 (MPhaseSAT64) R 15519 15521 15311 0 -1 4202496 542 0 0 0 2 0 0 0 25 0 1 0 656522213 12640256 483 33554432000 4194304 4479436 140736563864992 18446744073709551615 4343752 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15521/statm: 3086 483 323 70 0 206 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 12344

[startup+0.100901 s]
/proc/loadavg: 3.79 4.03 4.96 5/303 15521
/proc/meminfo: memFree=16676720/32951124 swapFree=52307768/67111528
[pid=15521] ppid=15519 vsize=12780 CPUtime=0.09 cores=1,3
/proc/15521/stat : 15521 (MPhaseSAT64) R 15519 15521 15311 0 -1 4202496 676 0 0 0 9 0 0 0 25 0 1 0 656522213 13086720 617 33554432000 4194304 4479436 140736563864992 18446744073709551615 4380566 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15521/statm: 3195 617 324 70 0 315 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12780

[startup+0.300878 s]
/proc/loadavg: 3.79 4.03 4.96 5/303 15521
/proc/meminfo: memFree=16676720/32951124 swapFree=52307768/67111528
[pid=15521] ppid=15519 vsize=13692 CPUtime=0.29 cores=1,3
/proc/15521/stat : 15521 (MPhaseSAT64) R 15519 15521 15311 0 -1 4202496 905 0 0 0 29 0 0 0 25 0 1 0 656522213 14020608 846 33554432000 4194304 4479436 140736563864992 18446744073709551615 4451008 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15521/statm: 3423 846 325 70 0 543 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13692

[startup+0.700807 s]
/proc/loadavg: 3.79 4.03 4.96 5/303 15521
/proc/meminfo: memFree=16676720/32951124 swapFree=52307768/67111528
[pid=15521] ppid=15519 vsize=14480 CPUtime=0.69 cores=1,3
/proc/15521/stat : 15521 (MPhaseSAT64) R 15519 15521 15311 0 -1 4202496 1166 0 0 0 69 0 0 0 25 0 1 0 656522213 14827520 1011 33554432000 4194304 4479436 140736563864992 18446744073709551615 4450994 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15521/statm: 3620 1011 325 70 0 740 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14480

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

Child status: 10
Real time (s): 0.748785
CPU time (s): 0.747885
CPU user time (s): 0.745886
CPU system time (s): 0.001999
CPU usage (%): 99.8798
Max. virtual memory (cumulated for all children) (KiB): 14480

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.745886
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1178
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= 4
involuntary context switches= 10

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node101 at 2011-05-15 10:46:35
IDJOB=3375024
IDBENCH=82733
IDSOLVER=1855
FILE ID=node101/3375024-1305449194
RUNJOBID= node101-1305447892-15331
PBS_JOBID= 13324878
Free space on /tmp= 73756 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S1946851065-023.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375024-1305449194/watcher-3375024-1305449194 -o /tmp/evaluation-result-3375024-1305449194/solver-3375024-1305449194 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375024-1305449194.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 96b76a29d6976e3cb9111f511d66ef22
RANDOM SEED=1761816487

node101.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	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.68
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5226.07
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      16677000 kB
Buffers:        332204 kB
Cached:        5987920 kB
SwapCached:      14848 kB
Active:       10883768 kB
Inactive:      5114588 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16677000 kB
SwapTotal:    67111528 kB
SwapFree:     52307768 kB
Dirty:            1196 kB
Writeback:           0 kB
AnonPages:     9674680 kB
Mapped:          15176 kB
Slab:           151316 kB
PageTables:      62320 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 42065956 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73756 MiB
End job on node101 at 2011-05-15 10:46:35