Trace number 3094251

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
MPhaseSAT 2011-02-15SAT 0.823874 0.825414

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 

0.79/0.82	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.82	c input CNF file=HOME/instance-3094251-1301752660.cnf 
0.79/0.82	c Clause#=1491  var#=350  ratio=4 
0.79/0.82	c Simplified clause#=1491 
0.79/0.82	c XOR_varElimination deleted var#=1 clauses#=1484 
0.79/0.82	c inative var#=0 
0.79/0.82	c free var#=335  
0.79/0.82	c local search on 
0.79/0.82	c A solution found by local search 
0.79/0.82	c unfixed var#=14 var#=350 
0.79/0.82	c verified 
0.79/0.82	c 
0.79/0.82	s SATISFIABLE
0.79/0.82	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 
0.79/0.82	v 0
0.79/0.82	c 
0.79/0.82	c  Running time=0.822875

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3094251-1301752660/watcher-3094251-1301752660 -o /tmp/evaluation-result-3094251-1301752660/solver-3094251-1301752660 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094251-1301752660.cnf 

running on 2 cores: 0,2

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: 4.00 4.00 3.93 5/189 18367
/proc/meminfo: memFree=20859628/32951124 swapFree=67111528/67111528
[pid=18367] ppid=18365 vsize=3104 CPUtime=0 cores=0,2
/proc/18367/stat : 18367 (MPhaseSAT) R 18365 18367 17798 0 -1 4202496 361 0 0 0 0 0 0 0 25 0 1 0 286864493 3178496 300 33554432000 134512640 134731564 4290967600 18446744073709551615 134579832 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18367/statm: 776 300 238 54 0 86 0

[startup+0.0502821 s]
/proc/loadavg: 4.00 4.00 3.93 5/189 18367
/proc/meminfo: memFree=20859628/32951124 swapFree=67111528/67111528
[pid=18367] ppid=18365 vsize=3500 CPUtime=0.04 cores=0,2
/proc/18367/stat : 18367 (MPhaseSAT) R 18365 18367 17798 0 -1 4202496 472 0 0 0 4 0 0 0 25 0 1 0 286864493 3584000 411 33554432000 134512640 134731564 4290967600 18446744073709551615 134614650 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18367/statm: 875 411 268 54 0 185 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3500

[startup+0.10028 s]
/proc/loadavg: 4.00 4.00 3.93 5/189 18367
/proc/meminfo: memFree=20859628/32951124 swapFree=67111528/67111528
[pid=18367] ppid=18365 vsize=3500 CPUtime=0.09 cores=0,2
/proc/18367/stat : 18367 (MPhaseSAT) R 18365 18367 17798 0 -1 4202496 490 0 0 0 9 0 0 0 25 0 1 0 286864493 3584000 429 33554432000 134512640 134731564 4290967600 18446744073709551615 134667258 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18367/statm: 875 429 268 54 0 185 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3500

[startup+0.300234 s]
/proc/loadavg: 4.00 4.00 3.93 5/189 18367
/proc/meminfo: memFree=20859628/32951124 swapFree=67111528/67111528
[pid=18367] ppid=18365 vsize=3764 CPUtime=0.29 cores=0,2
/proc/18367/stat : 18367 (MPhaseSAT) R 18365 18367 17798 0 -1 4202496 558 0 0 0 29 0 0 0 25 0 1 0 286864493 3854336 497 33554432000 134512640 134731564 4290967600 18446744073709551615 11990524 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18367/statm: 941 497 268 54 0 251 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3764

[startup+0.70117 s]
/proc/loadavg: 4.00 4.00 3.93 5/189 18367
/proc/meminfo: memFree=20859628/32951124 swapFree=67111528/67111528
[pid=18367] ppid=18365 vsize=4028 CPUtime=0.69 cores=0,2
/proc/18367/stat : 18367 (MPhaseSAT) R 18365 18367 17798 0 -1 4202496 620 0 0 0 69 0 0 0 25 0 1 0 286864493 4124672 559 33554432000 134512640 134731564 4290967600 18446744073709551615 11730777 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18367/statm: 1007 559 268 54 0 317 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4028

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

[startup+0.801147 s]
/proc/loadavg: 4.00 4.00 3.93 5/189 18367
/proc/meminfo: memFree=20859628/32951124 swapFree=67111528/67111528
[pid=18367] ppid=18365 vsize=4164 CPUtime=0.79 cores=0,2
/proc/18367/stat : 18367 (MPhaseSAT) R 18365 18367 17798 0 -1 4202496 646 0 0 0 79 0 0 0 25 0 1 0 286864493 4263936 585 33554432000 134512640 134731564 4290967600 18446744073709551615 134603349 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18367/statm: 1041 585 271 54 0 351 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4164

Child status: 10
Real time (s): 0.825414
CPU time (s): 0.823874
CPU user time (s): 0.823874
CPU system time (s): 0
CPU usage (%): 99.8134
Max. virtual memory (cumulated for all children) (KiB): 4164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.823874
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 659
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= 12
involuntary context switches= 9

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node130 at 2011-04-02 15:57:40
IDJOB=3094251
IDBENCH=82733
IDSOLVER=1520
FILE ID=node130/3094251-1301752660
RUNJOBID= node130-1301748570-17816
PBS_JOBID= 12841007
Free space on /tmp= 71984 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S1946851065-023.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094251-1301752660/watcher-3094251-1301752660 -o /tmp/evaluation-result-3094251-1301752660/solver-3094251-1301752660 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094251-1301752660.cnf

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

MD5SUM BENCH= 96b76a29d6976e3cb9111f511d66ef22
RANDOM SEED=699978485

node130.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5332.83
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		: 2666.838
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	: 5332.75
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		: 2666.838
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	: 5332.81
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		: 2666.838
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	: 5332.75
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		: 2666.838
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		: 2666.838
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		: 2666.838
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	: 5332.81
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20859768 kB
Buffers:        355736 kB
Cached:       11306540 kB
SwapCached:          0 kB
Active:        7326956 kB
Inactive:      4505264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20859768 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             436 kB
Writeback:           0 kB
AnonPages:      169768 kB
Mapped:          16932 kB
Slab:           195780 kB
PageTables:       5028 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   355476 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= 71984 MiB
End job on node130 at 2011-04-02 15:57:41