Trace number 3220189

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
sparrow2011 sparrow2011_ubcsat1.2_2011-03-02SAT 0.685894 0.701504

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S520872997-084.SATISFIABLE.cnf
MD5SUMb9af20624ed5bd46fea8950d0fddc198
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.568913
Satisfiable
(Un)Satisfiability was proved
Number of variables175
Number of clauses3727
Sum of the clauses size18635
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 53727
Number of clauses of size over 50

Solver Data 

0.68/0.70	c 
0.68/0.70	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.68/0.70	c 
0.68/0.70	c http://www.satlib.org/ubcsat
0.68/0.70	c 
0.68/0.70	c ubcsat -h for help
0.68/0.70	c 
0.68/0.70	s SATISFIABLE
0.68/0.70	v  1 2 3 4 -5 6 7 8 9 -10
0.68/0.70	v  -11 -12 -13 -14 -15 -16 17 18 -19 -20
0.68/0.70	v  -21 -22 23 -24 -25 -26 -27 28 29 30
0.68/0.70	v  31 32 33 34 -35 -36 37 -38 39 40
0.68/0.70	v  41 42 43 -44 45 46 47 -48 49 -50
0.68/0.70	v  -51 -52 -53 -54 55 -56 -57 58 59 -60
0.68/0.70	v  -61 62 63 -64 65 -66 67 -68 -69 70
0.68/0.70	v  -71 72 73 74 -75 -76 -77 -78 -79 -80
0.68/0.70	v  -81 -82 -83 84 -85 86 87 88 89 90
0.68/0.70	v  91 92 -93 -94 95 -96 97 98 99 -100
0.68/0.70	v  -101 102 -103 104 105 -106 -107 108 -109 -110
0.68/0.70	v  -111 112 113 -114 115 -116 117 -118 -119 -120
0.68/0.70	v  121 122 123 -124 -125 -126 127 -128 -129 -130
0.68/0.70	v  -131 -132 133 -134 135 136 -137 138 -139 -140
0.68/0.70	v  -141 -142 143 -144 145 146 147 -148 -149 150
0.68/0.70	v  151 152 153 -154 155 -156 157 158 159 160
0.68/0.70	v  161 162 163 164 165 -166 167 168 169 -170
0.68/0.70	v  -171 172 173 174 175 0
0.68/0.70	c SearchSteps = 385709
0.68/0.70	c SolveTime = 0.68

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-3220189-1303259276/watcher-3220189-1303259276 -o /tmp/evaluation-result-3220189-1303259276/solver-3220189-1303259276 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3220189-1303259276.cnf 1167371895 

running on 4 cores: 0,2,4,6

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): 5000 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: 0.00 0.49 2.99 2/174 26946
/proc/meminfo: memFree=15995048/32951124 swapFree=67111528/67111528
[pid=26946] ppid=26942 vsize=11800 CPUtime=0 cores=0,2,4,6
/proc/26946/stat : 26946 (runsolver) S 26942 26946 26911 0 -1 4202560 42 0 0 0 0 0 0 0 19 0 1 0 437528446 12083200 51 33554432000 4194304 5434984 140734594149104 18446744073709551615 4881607 0 2147483391 4096 24578 18446744071699960631 0 0 17 6 0 0 0
/proc/26946/statm: 2950 51 31 303 0 2644 0

[startup+0.0125259 s]
/proc/loadavg: 0.00 0.49 2.99 2/174 26946
/proc/meminfo: memFree=15995048/32951124 swapFree=67111528/67111528
[pid=26946] ppid=26942 vsize=11800 CPUtime=0 cores=0,2,4,6
/proc/26946/stat : 26946 (runsolver) S 26942 26946 26911 0 -1 4202560 45 0 0 0 0 0 0 0 20 0 1 0 437528446 12083200 54 33554432000 4194304 5434984 140734594149104 18446744073709551615 5055495 0 2147483391 4096 24578 18446744071699199166 0 0 17 6 0 0 0
/proc/26946/statm: 2950 54 34 303 0 2644 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 11800

[startup+0.104581 s]
/proc/loadavg: 0.00 0.49 2.99 2/174 26946
/proc/meminfo: memFree=15995048/32951124 swapFree=67111528/67111528
[pid=26946] ppid=26942 vsize=12228 CPUtime=0.08 cores=0,2,4,6
/proc/26946/stat : 26946 (sparrow2011) R 26942 26946 26911 0 -1 4202496 507 0 0 0 8 0 0 0 18 0 1 0 437528446 12521472 447 33554432000 4194304 4568220 140735056593472 18446744073709551615 4242517 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26946/statm: 3057 447 172 92 0 1441 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 12228

[startup+0.300542 s]
/proc/loadavg: 0.00 0.49 2.99 2/174 26946
/proc/meminfo: memFree=15995048/32951124 swapFree=67111528/67111528
[pid=26946] ppid=26942 vsize=12228 CPUtime=0.28 cores=0,2,4,6
/proc/26946/stat : 26946 (sparrow2011) R 26942 26946 26911 0 -1 4202496 507 0 0 0 28 0 0 0 18 0 1 0 437528446 12521472 447 33554432000 4194304 4568220 140735056593472 18446744073709551615 4239472 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26946/statm: 3057 447 172 92 0 1441 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 12228

[startup+0.700468 s]
/proc/loadavg: 0.00 0.49 2.99 2/174 26946
/proc/meminfo: memFree=15995048/32951124 swapFree=67111528/67111528
[pid=26946] ppid=26942 vsize=12228 CPUtime=0.68 cores=0,2,4,6
/proc/26946/stat : 26946 (sparrow2011) R 26942 26946 26911 0 -1 4202496 507 0 0 0 68 0 0 0 18 0 1 0 437528446 12521472 447 33554432000 4194304 4568220 140735056593472 18446744073709551615 4240257 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26946/statm: 3057 447 172 92 0 1441 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 12228

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

Child status: 10
Real time (s): 0.701504
CPU time (s): 0.685894
CPU user time (s): 0.684895
CPU system time (s): 0.000999
CPU usage (%): 97.7748
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.684895
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= 525
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= 36
involuntary context switches= 4

runsolver used 0.004999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node109 at 2011-04-20 02:27:57
IDJOB=3220189
IDBENCH=82715
IDSOLVER=1636
FILE ID=node109/3220189-1303259276
RUNJOBID= node109-1303259275-26929
PBS_JOBID= 13049513
Free space on /tmp= 71480 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S520872997-084.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3220189-1303259276/watcher-3220189-1303259276 -o /tmp/evaluation-result-3220189-1303259276/solver-3220189-1303259276 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3220189-1303259276.cnf 1167371895

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

MD5SUM BENCH= b9af20624ed5bd46fea8950d0fddc198
RANDOM SEED=1167371895

node109.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		: 2666.809
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	: 5333.61
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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:     32951124 kB
MemFree:      15995708 kB
Buffers:        766016 kB
Cached:       15765504 kB
SwapCached:          0 kB
Active:        7930968 kB
Inactive:      8664708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15995708 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             840 kB
Writeback:           0 kB
AnonPages:       63224 kB
Mapped:          14432 kB
Slab:           296692 kB
PageTables:       4492 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   186692 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= 71476 MiB
End job on node109 at 2011-04-20 02:27:58