Trace number 3095091

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 0.864867 0.866229

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S773607012-011.SATISFIABLE.cnf
MD5SUM483d25248cf3914949bc8e0a31e41038
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.002999
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 

0.79/0.86	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.86	c input CNF file=HOME/instance-3095091-1301757634.cnf 
0.79/0.86	c Clause#=1491  var#=350  ratio=4 
0.79/0.86	c Simplified clause#=1491 
0.79/0.86	c XOR_varElimination deleted var#=0 clauses#=1486 
0.79/0.86	c inative var#=0 
0.79/0.86	c free var#=338  
0.79/0.86	c local search on 
0.79/0.86	c A solution found by local search 
0.79/0.86	c unfixed var#=11 var#=350 
0.79/0.86	c verified 
0.79/0.86	c 
0.79/0.86	s SATISFIABLE
0.79/0.86	v -1 -2 3 -4 -5 6 -7 -8 -9 -10 11 12 13 -14 -15 16 17 -18 -19 20 -21 22 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 -136 137 -138 139 -140 -141 142 143 -144 -145 146 147 -148 -149 -150 -151 152 -153 154 155 157 158 159 160 161 -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 -215 216 218 219 -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 -268 269 270 271 -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 
0.79/0.86	v 0
0.79/0.86	c 
0.79/0.86	c  Running time=0.862868

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-3095091-1301757634/watcher-3095091-1301757634 -o /tmp/evaluation-result-3095091-1301757634/solver-3095091-1301757634 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095091-1301757634.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: 4.08 4.01 3.89 5/187 12955
/proc/meminfo: memFree=22052696/32951132 swapFree=67111528/67111528
[pid=12955] ppid=12953 vsize=3132 CPUtime=0 cores=1,3
/proc/12955/stat : 12955 (MPhaseSAT64) R 12953 12955 12621 0 -1 4202496 358 0 0 0 0 0 0 0 25 0 1 0 287363039 3207168 297 33554432000 134512640 134761588 4292096528 18446744073709551615 134559293 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12955/statm: 783 297 237 61 0 86 0

[startup+0.099093 s]
/proc/loadavg: 4.08 4.01 3.89 5/187 12955
/proc/meminfo: memFree=22052696/32951132 swapFree=67111528/67111528
[pid=12955] ppid=12953 vsize=3952 CPUtime=0.09 cores=1,3
/proc/12955/stat : 12955 (MPhaseSAT64) R 12953 12955 12621 0 -1 4202496 582 0 0 0 9 0 0 0 25 0 1 0 287363039 4046848 521 33554432000 134512640 134761588 4292096528 18446744073709551615 134748099 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12955/statm: 988 521 273 61 0 291 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3952

[startup+0.10108 s]
/proc/loadavg: 4.08 4.01 3.89 5/187 12955
/proc/meminfo: memFree=22052696/32951132 swapFree=67111528/67111528
[pid=12955] ppid=12953 vsize=3952 CPUtime=0.09 cores=1,3
/proc/12955/stat : 12955 (MPhaseSAT64) R 12953 12955 12621 0 -1 4202496 582 0 0 0 9 0 0 0 25 0 1 0 287363039 4046848 521 33554432000 134512640 134761588 4292096528 18446744073709551615 134748185 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12955/statm: 988 521 273 61 0 291 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3952

[startup+0.301049 s]
/proc/loadavg: 4.08 4.01 3.89 5/187 12955
/proc/meminfo: memFree=22052696/32951132 swapFree=67111528/67111528
[pid=12955] ppid=12953 vsize=4604 CPUtime=0.29 cores=1,3
/proc/12955/stat : 12955 (MPhaseSAT64) R 12953 12955 12621 0 -1 4202496 778 0 0 0 29 0 0 0 25 0 1 0 287363039 4714496 717 33554432000 134512640 134761588 4292096528 18446744073709551615 134747168 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12955/statm: 1151 717 274 61 0 454 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4604

[startup+0.700979 s]
/proc/loadavg: 4.08 4.01 3.89 5/187 12955
/proc/meminfo: memFree=22052696/32951132 swapFree=67111528/67111528
[pid=12955] ppid=12953 vsize=5520 CPUtime=0.69 cores=1,3
/proc/12955/stat : 12955 (MPhaseSAT64) R 12953 12955 12621 0 -1 4202496 1071 0 0 0 69 0 0 0 25 0 1 0 287363039 5652480 914 33554432000 134512640 134761588 4292096528 18446744073709551615 134748864 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12955/statm: 1380 914 274 61 0 683 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5520

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

[startup+0.800963 s]
/proc/loadavg: 4.08 4.01 3.89 5/187 12955
/proc/meminfo: memFree=22052696/32951132 swapFree=67111528/67111528
[pid=12955] ppid=12953 vsize=5520 CPUtime=0.79 cores=1,3
/proc/12955/stat : 12955 (MPhaseSAT64) R 12953 12955 12621 0 -1 4202496 1103 0 0 0 79 0 0 0 25 0 1 0 287363039 5652480 946 33554432000 134512640 134761588 4292096528 18446744073709551615 134616924 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12955/statm: 1380 946 274 61 0 683 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5520

Child status: 10
Real time (s): 0.866229
CPU time (s): 0.864867
CPU user time (s): 0.861868
CPU system time (s): 0.002999
CPU usage (%): 99.8428
Max. virtual memory (cumulated for all children) (KiB): 5520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.861868
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1116
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= 6
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node129 at 2011-04-02 17:20:34
IDJOB=3095091
IDBENCH=82973
IDSOLVER=1521
FILE ID=node129/3095091-1301757634
RUNJOBID= node129-1301756648-12641
PBS_JOBID= 12841055
Free space on /tmp= 72148 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S773607012-011.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095091-1301757634/watcher-3095091-1301757634 -o /tmp/evaluation-result-3095091-1301757634/solver-3095091-1301757634 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095091-1301757634.cnf

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

MD5SUM BENCH= 483d25248cf3914949bc8e0a31e41038
RANDOM SEED=233533101

node129.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		: 2666.831
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	: 5333.66
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		: 2666.831
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		: 2666.831
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		: 2666.831
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	: 5332.82
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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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:     32951132 kB
MemFree:      22052960 kB
Buffers:        347844 kB
Cached:       10213920 kB
SwapCached:          0 kB
Active:        7110968 kB
Inactive:      3537656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      22052960 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             528 kB
Writeback:          32 kB
AnonPages:       86516 kB
Mapped:          17396 kB
Slab:           186672 kB
PageTables:       5452 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   276728 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72148 MiB
End job on node129 at 2011-04-02 17:20:35