Trace number 3274079

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
sattime+ 2011-03-02SAT 3.48747 3.48834

General information on the benchmark

Namecrafted/spence/sgen/
sgen3-n260-s62321009-sat.cnf
MD5SUMf2b430bdd9bc1c472e9e437567706bb7
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark3.48747
Satisfiable
(Un)Satisfiability was proved
Number of variables260
Number of clauses624
Sum of the clauses size1560
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2520
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 5104
Number of clauses of size over 50

Solver Data 

3.40/3.48	c 0 clauses are redundant and removed
3.40/3.48	c 0 vars are fixed and 0 clauses are removed after unit propagation
3.40/3.48	c 0 vars are fixed and 0 clauses are removed after lookahead
3.40/3.48	c initial seed is 241719058
3.40/3.48	c try=1 flip j=13873276 walk=12193259 seed 241719075
3.40/3.48	c A solution is found
3.40/3.48	s SATISFIABLE
3.40/3.48	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 
3.40/3.48	v 0 
3.40/3.48	c Done (mycputime is 3 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3274079-1303607161/watcher-3274079-1303607161 -o /tmp/evaluation-result-3274079-1303607161/solver-3274079-1303607161 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3274079-1303607161.cnf 241718945 

running on 2 cores: 5,7

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: 0.92 1.02 1.68 2/177 23891
/proc/meminfo: memFree=21134092/32951124 swapFree=67111528/67111528
[pid=23891] ppid=23889 vsize=880764 CPUtime=0 cores=5,7
/proc/23891/stat : 23891 (sattime+) R 23889 23891 22924 0 -1 4202496 261 0 0 0 0 0 0 0 22 0 1 0 204907347 901902336 202 33554432000 4194304 4228340 140737115623968 18446744073709551615 4217272 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/23891/statm: 220191 202 116 9 0 217348 0

[startup+0.055134 s]
/proc/loadavg: 0.92 1.02 1.68 2/177 23891
/proc/meminfo: memFree=21134092/32951124 swapFree=67111528/67111528
[pid=23891] ppid=23889 vsize=880764 CPUtime=0.05 cores=5,7
/proc/23891/stat : 23891 (sattime+) R 23889 23891 22924 0 -1 4202496 261 0 0 0 5 0 0 0 22 0 1 0 204907347 901902336 202 33554432000 4194304 4228340 140737115623968 18446744073709551615 4217241 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/23891/statm: 220191 202 116 9 0 217348 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 880764

[startup+0.101126 s]
/proc/loadavg: 0.92 1.02 1.68 2/177 23891
/proc/meminfo: memFree=21134092/32951124 swapFree=67111528/67111528
[pid=23891] ppid=23889 vsize=880764 CPUtime=0.1 cores=5,7
/proc/23891/stat : 23891 (sattime+) R 23889 23891 22924 0 -1 4202496 261 0 0 0 10 0 0 0 22 0 1 0 204907347 901902336 202 33554432000 4194304 4228340 140737115623968 18446744073709551615 4218815 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/23891/statm: 220191 202 116 9 0 217348 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 880764

[startup+0.30109 s]
/proc/loadavg: 0.92 1.02 1.68 2/177 23891
/proc/meminfo: memFree=21134092/32951124 swapFree=67111528/67111528
[pid=23891] ppid=23889 vsize=880764 CPUtime=0.3 cores=5,7
/proc/23891/stat : 23891 (sattime+) R 23889 23891 22924 0 -1 4202496 261 0 0 0 30 0 0 0 23 0 1 0 204907347 901902336 202 33554432000 4194304 4228340 140737115623968 18446744073709551615 4218976 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/23891/statm: 220191 202 116 9 0 217348 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 880764

[startup+0.701023 s]
/proc/loadavg: 0.92 1.02 1.68 2/177 23891
/proc/meminfo: memFree=21134092/32951124 swapFree=67111528/67111528
[pid=23891] ppid=23889 vsize=880764 CPUtime=0.7 cores=5,7
/proc/23891/stat : 23891 (sattime+) R 23889 23891 22924 0 -1 4202496 261 0 0 0 70 0 0 0 25 0 1 0 204907347 901902336 202 33554432000 4194304 4228340 140737115623968 18446744073709551615 268660063728 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/23891/statm: 220191 202 116 9 0 217348 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 880764

[startup+1.50088 s]
/proc/loadavg: 1.01 1.04 1.68 3/180 23946
/proc/meminfo: memFree=21132552/32951124 swapFree=67111528/67111528
[pid=23891] ppid=23889 vsize=880764 CPUtime=1.5 cores=5,7
/proc/23891/stat : 23891 (sattime+) R 23889 23891 22924 0 -1 4202496 261 0 0 0 150 0 0 0 25 0 1 0 204907347 901902336 202 33554432000 4194304 4228340 140737115623968 18446744073709551615 4218874 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/23891/statm: 220191 202 116 9 0 217348 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 880764

[startup+3.10061 s]
/proc/loadavg: 1.01 1.04 1.68 3/180 23946
/proc/meminfo: memFree=21131932/32951124 swapFree=67111528/67111528
[pid=23891] ppid=23889 vsize=880764 CPUtime=3.1 cores=5,7
/proc/23891/stat : 23891 (sattime+) R 23889 23891 22924 0 -1 4202496 261 0 0 0 310 0 0 0 25 0 1 0 204907347 901902336 202 33554432000 4194304 4228340 140737115623968 18446744073709551615 4216862 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/23891/statm: 220191 202 116 9 0 217348 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 880764

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

[startup+3.30556 s]
/proc/loadavg: 1.01 1.04 1.68 3/180 23946
/proc/meminfo: memFree=21131932/32951124 swapFree=67111528/67111528
[pid=23891] ppid=23889 vsize=880764 CPUtime=3.3 cores=5,7
/proc/23891/stat : 23891 (sattime+) R 23889 23891 22924 0 -1 4202496 261 0 0 0 330 0 0 0 25 0 1 0 204907347 901902336 202 33554432000 4194304 4228340 140737115623968 18446744073709551615 4216870 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/23891/statm: 220191 202 116 9 0 217348 0
Current children cumulated CPU time (s) 3.3
Current children cumulated vsize (KiB) 880764

[startup+3.40055 s]
/proc/loadavg: 1.01 1.04 1.68 3/180 23946
/proc/meminfo: memFree=21131932/32951124 swapFree=67111528/67111528
[pid=23891] ppid=23889 vsize=880764 CPUtime=3.4 cores=5,7
/proc/23891/stat : 23891 (sattime+) R 23889 23891 22924 0 -1 4202496 261 0 0 0 340 0 0 0 25 0 1 0 204907347 901902336 202 33554432000 4194304 4228340 140737115623968 18446744073709551615 4216872 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/23891/statm: 220191 202 116 9 0 217348 0
Current children cumulated CPU time (s) 3.4
Current children cumulated vsize (KiB) 880764

Child status: 10
Real time (s): 3.48834
CPU time (s): 3.48747
CPU user time (s): 3.48747
CPU system time (s): 0
CPU usage (%): 99.975
Max. virtual memory (cumulated for all children) (KiB): 880764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.48747
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= 265
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= 3
involuntary context switches= 6

runsolver used 0.005999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node107 at 2011-04-24 03:06:01
IDJOB=3274079
IDBENCH=83153
IDSOLVER=1579
FILE ID=node107/3274079-1303607161
RUNJOBID= node107-1303607159-23872
PBS_JOBID= 13150587
Free space on /tmp= 71716 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/crafted/spence/sgen/sgen3-n260-s62321009-sat.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3274079-1303607161/watcher-3274079-1303607161 -o /tmp/evaluation-result-3274079-1303607161/solver-3274079-1303607161 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3274079-1303607161.cnf 241718945

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

MD5SUM BENCH= f2b430bdd9bc1c472e9e437567706bb7
RANDOM SEED=241718945

node107.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		: 2666.829
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	: 5333.65
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		: 2666.829
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	: 5332.75
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		: 2666.829
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	: 5332.67
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		: 2666.829
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		: 2666.829
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		: 2666.829
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	: 5359.47
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		: 2666.829
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		: 2666.829
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:      21134372 kB
Buffers:       2016496 kB
Cached:        9258368 kB
SwapCached:          0 kB
Active:        7620864 kB
Inactive:      3717800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21134372 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           16068 kB
Writeback:           8 kB
AnonPages:       63208 kB
Mapped:          14788 kB
Slab:           413852 kB
PageTables:       4768 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   209988 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= 71708 MiB
End job on node107 at 2011-04-24 03:06:04