Trace number 3426678

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
sattime2011 2011-03-02SAT 2.81357 2.81368

General information on the benchmark

Namerandom/large/
unif-k3-r4.2-v2500-c10500-S1907658523-004-UNKNOWN.cnf
MD5SUMb937b5bc0ec99f47d43da4a3e675d75d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.286955
Satisfiable
(Un)Satisfiability was proved
Number of variables2500
Number of clauses10500
Sum of the clauses size31500
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 310500
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data

2.80/2.81	c 0 clauses are redundant and removed
2.80/2.81	c 0 vars are fixed and 0 clauses are removed after unit propagation
2.80/2.81	c 0 vars are fixed and 0 clauses are removed after lookahead
2.80/2.81	c initial seed is 1528786776
2.80/2.81	c try=1 flip j=5133920 walk=4678907 seed 1528786793
2.80/2.81	c A solution is found
2.80/2.81	s SATISFIABLE
2.80/2.81	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 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2.80/2.81	v 0 
2.80/2.81	c Done (mycputime is 2 seconds)

Verifier Data

OK

Watcher Data

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3426678-1306766853/watcher-3426678-1306766853 -o /tmp/evaluation-result-3426678-1306766853/solver-3426678-1306766853 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426678-1306766853.cnf 1528783319 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.01 2.05 2.00 3/554 16585
/proc/meminfo: memFree=4495412/32950928 swapFree=67056580/67111528
[pid=16585] ppid=16583 vsize=1186504 CPUtime=0.01 cores=1,3,5,7
/proc/16585/stat : 16585 (sattime2011) R 16583 16585 16263 0 -1 4202496 559 0 0 0 1 0 0 0 25 0 1 0 788282413 1214980096 503 33554432000 4194304 4230460 140736677917168 18446744073709551615 4207737 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16585/statm: 296626 503 103 9 0 293783 0

[startup+0.0316551 s]
/proc/loadavg: 2.01 2.05 2.00 3/554 16585
/proc/meminfo: memFree=4495412/32950928 swapFree=67056580/67111528
[pid=16585] ppid=16583 vsize=1187168 CPUtime=0.03 cores=1,3,5,7
/proc/16585/stat : 16585 (sattime2011) R 16583 16585 16263 0 -1 4202496 900 0 0 0 3 0 0 0 25 0 1 0 788282413 1215660032 843 33554432000 4194304 4230460 140736677917168 18446744073709551615 4221539 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16585/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1187168

[startup+0.100638 s]
/proc/loadavg: 2.01 2.05 2.00 3/554 16585
/proc/meminfo: memFree=4495412/32950928 swapFree=67056580/67111528
[pid=16585] ppid=16583 vsize=1187168 CPUtime=0.09 cores=1,3,5,7
/proc/16585/stat : 16585 (sattime2011) R 16583 16585 16263 0 -1 4202496 900 0 0 0 9 0 0 0 25 0 1 0 788282413 1215660032 843 33554432000 4194304 4230460 140736677917168 18446744073709551615 4200592 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16585/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1187168

[startup+0.300601 s]
/proc/loadavg: 2.01 2.05 2.00 3/554 16585
/proc/meminfo: memFree=4495412/32950928 swapFree=67056580/67111528
[pid=16585] ppid=16583 vsize=1187168 CPUtime=0.29 cores=1,3,5,7
/proc/16585/stat : 16585 (sattime2011) R 16583 16585 16263 0 -1 4202496 900 0 0 0 29 0 0 0 25 0 1 0 788282413 1215660032 843 33554432000 4194304 4230460 140736677917168 18446744073709551615 4217114 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16585/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1187168

[startup+0.700526 s]
/proc/loadavg: 2.01 2.05 2.00 3/554 16585
/proc/meminfo: memFree=4495412/32950928 swapFree=67056580/67111528
[pid=16585] ppid=16583 vsize=1187168 CPUtime=0.69 cores=1,3,5,7
/proc/16585/stat : 16585 (sattime2011) R 16583 16585 16263 0 -1 4202496 900 0 0 0 69 0 0 0 25 0 1 0 788282413 1215660032 843 33554432000 4194304 4230460 140736677917168 18446744073709551615 4221625 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16585/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1187168

[startup+1.50037 s]
/proc/loadavg: 2.01 2.05 2.00 3/555 16586
/proc/meminfo: memFree=4491436/32950928 swapFree=67056580/67111528
[pid=16585] ppid=16583 vsize=1187168 CPUtime=1.49 cores=1,3,5,7
/proc/16585/stat : 16585 (sattime2011) R 16583 16585 16263 0 -1 4202496 900 0 0 0 149 0 0 0 25 0 1 0 788282413 1215660032 843 33554432000 4194304 4230460 140736677917168 18446744073709551615 4219829 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16585/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1187168

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

[startup+2.30022 s]
/proc/loadavg: 2.01 2.05 2.00 3/555 16586
/proc/meminfo: memFree=4490876/32950928 swapFree=67056580/67111528
[pid=16585] ppid=16583 vsize=1187168 CPUtime=2.29 cores=1,3,5,7
/proc/16585/stat : 16585 (sattime2011) R 16583 16585 16263 0 -1 4202496 900 0 0 0 229 0 0 0 25 0 1 0 788282413 1215660032 843 33554432000 4194304 4230460 140736677917168 18446744073709551615 4217128 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16585/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 1187168

[startup+2.70114 s]
/proc/loadavg: 2.01 2.05 2.00 3/555 16586
/proc/meminfo: memFree=4490876/32950928 swapFree=67056580/67111528
[pid=16585] ppid=16583 vsize=1187168 CPUtime=2.7 cores=1,3,5,7
/proc/16585/stat : 16585 (sattime2011) R 16583 16585 16263 0 -1 4202496 900 0 0 0 270 0 0 0 25 0 1 0 788282413 1215660032 843 33554432000 4194304 4230460 140736677917168 18446744073709551615 4219784 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16585/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 2.7
Current children cumulated vsize (KiB) 1187168

[startup+2.80112 s]
/proc/loadavg: 2.01 2.05 2.00 3/555 16586
/proc/meminfo: memFree=4490876/32950928 swapFree=67056580/67111528
[pid=16585] ppid=16583 vsize=1187168 CPUtime=2.8 cores=1,3,5,7
/proc/16585/stat : 16585 (sattime2011) R 16583 16585 16263 0 -1 4202496 900 0 0 0 280 0 0 0 25 0 1 0 788282413 1215660032 843 33554432000 4194304 4230460 140736677917168 18446744073709551615 4223205 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16585/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 2.8
Current children cumulated vsize (KiB) 1187168

Child status: 10
Real time (s): 2.81368
CPU time (s): 2.81357
CPU user time (s): 2.81257
CPU system time (s): 0.000999
CPU usage (%): 99.996
Max. virtual memory (cumulated for all children) (KiB): 1187168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.81257
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 905
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= 5

runsolver used 0.017997 second user time and 0.042993 second system time

The end

Launcher Data

Begin job on node148 at 2011-05-30 16:47:33
IDJOB=3426678
IDBENCH=82650
IDSOLVER=1924
FILE ID=node148/3426678-1306766853
RUNJOBID= node148-1306761757-16282
PBS_JOBID= 13474976
Free space on /tmp= 56876 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/large/unif-k3-r4.2-v2500-c10500-S1907658523-004-UNKNOWN.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426678-1306766853/watcher-3426678-1306766853 -o /tmp/evaluation-result-3426678-1306766853/solver-3426678-1306766853 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426678-1306766853.cnf 1528783319

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= b937b5bc0ec99f47d43da4a3e675d75d
RANDOM SEED=1528783319

node148.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		: 2666.854
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	: 5333.70
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		: 2666.854
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		: 2666.854
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	: 5332.83
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		: 2666.854
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	: 5332.75
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		: 2666.854
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		: 2666.854
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	: 5332.75
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		: 2666.854
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	: 5332.82
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		: 2666.854
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:       4495568 kB
Buffers:        341016 kB
Cached:       20528460 kB
SwapCached:       8488 kB
Active:       17843592 kB
Inactive:      9867136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4495568 kB
SwapTotal:    67111528 kB
SwapFree:     67056580 kB
Dirty:            7780 kB
Writeback:           0 kB
AnonPages:     6839160 kB
Mapped:          43844 kB
Slab:           616700 kB
PageTables:      57684 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 171573276 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= 56868 MiB
End job on node148 at 2011-05-30 16:47:36