Trace number 3169332

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
shortsattime+ 2011-03-02SAT 1.61175 1.61131

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S1060672754-058.SATISFIABLE.cnf
MD5SUM74ebf62a9b67d118d692e671bdb08f4e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011998
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 

1.60/1.61	c 0 clauses are redundant and removed
1.60/1.61	c 0 vars are fixed and 0 clauses are removed after unit propagation
1.60/1.61	c 0 vars are fixed and 0 clauses are removed after lookahead
1.60/1.61	c initial seed is 1408470924
1.60/1.61	c try=1 flip j=4130386 walk=3617802 seed 1408470941
1.60/1.61	c A solution is found
1.60/1.61	s SATISFIABLE
1.60/1.61	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 -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 
1.60/1.61	v 0 
1.60/1.61	c Done (mycputime is 1 seconds)

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-3169332-1301704903/watcher-3169332-1301704903 -o /tmp/evaluation-result-3169332-1301704903/solver-3169332-1301704903 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169332-1301704903.cnf 1408470697 

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: 3.46 3.88 3.91 5/189 32245
/proc/meminfo: memFree=20672320/32950904 swapFree=67111528/67111528
[pid=32245] ppid=32243 vsize=880896 CPUtime=0 cores=4,6
/proc/32245/stat : 32245 (shortsattime+) R 32243 32245 31396 0 -1 4202496 300 0 0 0 0 0 0 0 23 0 1 0 282090041 902037504 241 33554432000 4194304 4228340 140736403460960 18446744073709551615 4217233 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/32245/statm: 220224 241 116 9 0 217381 0

[startup+0.0220299 s]
/proc/loadavg: 3.46 3.88 3.91 5/189 32245
/proc/meminfo: memFree=20672320/32950904 swapFree=67111528/67111528
[pid=32245] ppid=32243 vsize=880896 CPUtime=0.02 cores=4,6
/proc/32245/stat : 32245 (shortsattime+) R 32243 32245 31396 0 -1 4202496 300 0 0 0 2 0 0 0 23 0 1 0 282090041 902037504 241 33554432000 4194304 4228340 140736403460960 18446744073709551615 4217563 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/32245/statm: 220224 241 116 9 0 217381 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 880896

[startup+0.101016 s]
/proc/loadavg: 3.46 3.88 3.91 5/189 32245
/proc/meminfo: memFree=20672320/32950904 swapFree=67111528/67111528
[pid=32245] ppid=32243 vsize=880896 CPUtime=0.1 cores=4,6
/proc/32245/stat : 32245 (shortsattime+) R 32243 32245 31396 0 -1 4202496 300 0 0 0 10 0 0 0 23 0 1 0 282090041 902037504 241 33554432000 4194304 4228340 140736403460960 18446744073709551615 4217315 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/32245/statm: 220224 241 116 9 0 217381 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 880896

[startup+0.30098 s]
/proc/loadavg: 3.46 3.88 3.91 5/189 32245
/proc/meminfo: memFree=20672320/32950904 swapFree=67111528/67111528
[pid=32245] ppid=32243 vsize=880896 CPUtime=0.3 cores=4,6
/proc/32245/stat : 32245 (shortsattime+) R 32243 32245 31396 0 -1 4202496 300 0 0 0 30 0 0 0 25 0 1 0 282090041 902037504 241 33554432000 4194304 4228340 140736403460960 18446744073709551615 4219068 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/32245/statm: 220224 241 116 9 0 217381 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 880896

[startup+0.700908 s]
/proc/loadavg: 3.46 3.88 3.91 5/189 32245
/proc/meminfo: memFree=20672320/32950904 swapFree=67111528/67111528
[pid=32245] ppid=32243 vsize=880896 CPUtime=0.7 cores=4,6
/proc/32245/stat : 32245 (shortsattime+) R 32243 32245 31396 0 -1 4202496 300 0 0 0 70 0 0 0 25 0 1 0 282090041 902037504 241 33554432000 4194304 4228340 140736403460960 18446744073709551615 4217336 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/32245/statm: 220224 241 116 9 0 217381 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 880896

[startup+1.50077 s]
/proc/loadavg: 3.46 3.88 3.91 5/190 32246
/proc/meminfo: memFree=20668468/32950904 swapFree=67111528/67111528
[pid=32245] ppid=32243 vsize=880896 CPUtime=1.5 cores=4,6
/proc/32245/stat : 32245 (shortsattime+) R 32243 32245 31396 0 -1 4202496 300 0 0 0 150 0 0 0 25 0 1 0 282090041 902037504 241 33554432000 4194304 4228340 140736403460960 18446744073709551615 4217336 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/32245/statm: 220224 241 116 9 0 217381 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 880896

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

[startup+1.60075 s]
/proc/loadavg: 3.46 3.88 3.91 5/190 32246
/proc/meminfo: memFree=20668468/32950904 swapFree=67111528/67111528
[pid=32245] ppid=32243 vsize=880896 CPUtime=1.6 cores=4,6
/proc/32245/stat : 32245 (shortsattime+) R 32243 32245 31396 0 -1 4202496 300 0 0 0 160 0 0 0 25 0 1 0 282090041 902037504 241 33554432000 4194304 4228340 140736403460960 18446744073709551615 4217233 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/32245/statm: 220224 241 116 9 0 217381 0
Current children cumulated CPU time (s) 1.6
Current children cumulated vsize (KiB) 880896

Child status: 10
Real time (s): 1.61131
CPU time (s): 1.61175
CPU user time (s): 1.61175
CPU system time (s): 0
CPU usage (%): 100.028
Max. virtual memory (cumulated for all children) (KiB): 880896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.61175
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= 305
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= 2
involuntary context switches= 4

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node121 at 2011-04-02 02:41:43
IDJOB=3169332
IDBENCH=82950
IDSOLVER=1578
FILE ID=node121/3169332-1301704903
RUNJOBID= node121-1301704903-32204
PBS_JOBID= 12840744
Free space on /tmp= 71084 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S1060672754-058.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169332-1301704903/watcher-3169332-1301704903 -o /tmp/evaluation-result-3169332-1301704903/solver-3169332-1301704903 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169332-1301704903.cnf 1408470697

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

MD5SUM BENCH= 74ebf62a9b67d118d692e671bdb08f4e
RANDOM SEED=1408470697

node121.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		: 2666.817
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	: 5333.63
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		: 2666.817
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		: 2666.817
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	: 5332.84
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		: 2666.817
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	: 5332.77
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		: 2666.817
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	: 5332.82
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		: 2666.817
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	: 5332.74
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		: 2666.817
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		: 2666.817
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950904 kB
MemFree:      20672600 kB
Buffers:        330516 kB
Cached:       11607116 kB
SwapCached:          0 kB
Active:        7687012 kB
Inactive:      4317968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950904 kB
LowFree:      20672600 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31248 kB
Writeback:           0 kB
AnonPages:       66380 kB
Mapped:          15004 kB
Slab:           210492 kB
PageTables:       5496 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586980 kB
Committed_AS:  2883008 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= 71076 MiB
End job on node121 at 2011-04-02 02:41:45