Trace number 3095046

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 2011-03-03SAT 0.839871 0.841071

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S1794283924-053.SATISFIABLE.cnf
MD5SUMe6534afa60eb38f9c39ca12382cdd578
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005999
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 

0.79/0.84	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.84	c input CNF file=HOME/instance-3095046-1301757017.cnf 
0.79/0.84	c Clause#=1491  var#=350  ratio=4 
0.79/0.84	c Simplified clause#=1491 
0.79/0.84	c XOR_varElimination deleted var#=0 clauses#=1472 
0.79/0.84	c inative var#=0 
0.79/0.84	c free var#=338  
0.79/0.84	c local search on 
0.79/0.84	c A solution found by local search 
0.79/0.84	c unfixed var#=9 var#=350 
0.79/0.84	c verified 
0.79/0.84	c 
0.79/0.84	s SATISFIABLE
0.79/0.84	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 -159 160 -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 -250 -251 252 253 254 256 257 -258 259 -260 261 -262 -263 -264 -265 266 -267 268 -269 -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 
0.79/0.84	v 0
0.79/0.84	c 
0.79/0.84	c  Running time=0.838872

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-3095046-1301757017/watcher-3095046-1301757017 -o /tmp/evaluation-result-3095046-1301757017/solver-3095046-1301757017 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095046-1301757017.cnf 

running on 2 cores: 4,6

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: 1.04 2.00 2.98 3/184 14793
/proc/meminfo: memFree=22483804/32951124 swapFree=67111528/67111528
[pid=14793] ppid=14791 vsize=3132 CPUtime=0 cores=4,6
/proc/14793/stat : 14793 (MPhaseSAT64) R 14791 14793 13645 0 -1 4202496 359 0 0 0 0 0 0 0 22 0 1 0 268117356 3207168 298 33554432000 134512640 134761588 4292145312 18446744073709551615 134580580 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14793/statm: 783 298 237 61 0 86 0

[startup+0.0296921 s]
/proc/loadavg: 1.04 2.00 2.98 3/184 14793
/proc/meminfo: memFree=22483804/32951124 swapFree=67111528/67111528
[pid=14793] ppid=14791 vsize=3360 CPUtime=0.02 cores=4,6
/proc/14793/stat : 14793 (MPhaseSAT64) R 14791 14793 13645 0 -1 4202496 466 0 0 0 2 0 0 0 22 0 1 0 268117356 3440640 405 33554432000 134512640 134761588 4292145312 18446744073709551615 134751685 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14793/statm: 840 405 273 61 0 143 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3360

[startup+0.100677 s]
/proc/loadavg: 1.04 2.00 2.98 3/184 14793
/proc/meminfo: memFree=22483804/32951124 swapFree=67111528/67111528
[pid=14793] ppid=14791 vsize=3924 CPUtime=0.09 cores=4,6
/proc/14793/stat : 14793 (MPhaseSAT64) R 14791 14793 13645 0 -1 4202496 575 0 0 0 9 0 0 0 23 0 1 0 268117356 4018176 514 33554432000 134512640 134761588 4292145312 18446744073709551615 134636870 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14793/statm: 981 514 273 61 0 284 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3924

[startup+0.300636 s]
/proc/loadavg: 1.04 2.00 2.98 3/184 14793
/proc/meminfo: memFree=22483804/32951124 swapFree=67111528/67111528
[pid=14793] ppid=14791 vsize=4704 CPUtime=0.29 cores=4,6
/proc/14793/stat : 14793 (MPhaseSAT64) R 14791 14793 13645 0 -1 4202496 803 0 0 0 29 0 0 0 23 0 1 0 268117356 4816896 742 33554432000 134512640 134761588 4292145312 18446744073709551615 134747356 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14793/statm: 1176 742 274 61 0 479 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4704

[startup+0.700559 s]
/proc/loadavg: 1.04 2.00 2.98 3/184 14793
/proc/meminfo: memFree=22483804/32951124 swapFree=67111528/67111528
[pid=14793] ppid=14791 vsize=5508 CPUtime=0.69 cores=4,6
/proc/14793/stat : 14793 (MPhaseSAT64) R 14791 14793 13645 0 -1 4202496 1068 0 0 0 69 0 0 0 25 0 1 0 268117356 5640192 943 33554432000 134512640 134761588 4292145312 18446744073709551615 134680775 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14793/statm: 1377 943 274 61 0 680 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5508

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

[startup+0.800536 s]
/proc/loadavg: 1.04 2.00 2.98 3/184 14793
/proc/meminfo: memFree=22483804/32951124 swapFree=67111528/67111528
[pid=14793] ppid=14791 vsize=5508 CPUtime=0.79 cores=4,6
/proc/14793/stat : 14793 (MPhaseSAT64) R 14791 14793 13645 0 -1 4202496 1068 0 0 0 79 0 0 0 25 0 1 0 268117356 5640192 943 33554432000 134512640 134761588 4292145312 18446744073709551615 134747545 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14793/statm: 1377 943 274 61 0 680 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5508

Child status: 10
Real time (s): 0.841071
CPU time (s): 0.839871
CPU user time (s): 0.837872
CPU system time (s): 0.001999
CPU usage (%): 99.8573
Max. virtual memory (cumulated for all children) (KiB): 5508

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.837872
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= 1081
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= 7
involuntary context switches= 4

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node143 at 2011-04-02 17:10:17
IDJOB=3095046
IDBENCH=82928
IDSOLVER=1521
FILE ID=node143/3095046-1301757017
RUNJOBID= node143-1301757017-14762
PBS_JOBID= 12841038
Free space on /tmp= 72044 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S1794283924-053.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095046-1301757017/watcher-3095046-1301757017 -o /tmp/evaluation-result-3095046-1301757017/solver-3095046-1301757017 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095046-1301757017.cnf

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

MD5SUM BENCH= e6534afa60eb38f9c39ca12382cdd578
RANDOM SEED=1626372805

node143.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5226.15
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		: 2666.846
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	: 5332.74
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		: 2666.846
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		: 2666.846
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		: 2666.846
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		: 2666.846
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	: 5332.74
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		: 2666.846
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:      22484060 kB
Buffers:        353848 kB
Cached:        9786432 kB
SwapCached:          0 kB
Active:        6958292 kB
Inactive:      3249528 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22484060 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1216 kB
Writeback:           0 kB
AnonPages:       67464 kB
Mapped:          16372 kB
Slab:           195376 kB
PageTables:       4780 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   232628 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= 72040 MiB
End job on node143 at 2011-04-02 17:10:18