Trace number 3162546

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 1.77673 1.77742

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v150-c3195-S1116496771-020.SATISFIABLE.cnf
MD5SUM55b0e04e9e653549cf2eabcc194b78ff
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.142977
Satisfiable
(Un)Satisfiability was proved
Number of variables150
Number of clauses3195
Sum of the clauses size15975
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 53195
Number of clauses of size over 50

Solver Data 

1.70/1.77	c 
1.70/1.77	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
1.70/1.77	c 
1.70/1.77	c http://www.satlib.org/ubcsat
1.70/1.77	c 
1.70/1.77	c ubcsat -h for help
1.70/1.77	c 
1.70/1.77	s SATISFIABLE
1.70/1.77	v  1 2 -3 -4 -5 6 -7 -8 -9 10
1.70/1.77	v  -11 12 13 -14 -15 16 -17 18 -19 -20
1.70/1.77	v  21 -22 23 24 25 -26 -27 28 -29 30
1.70/1.77	v  31 -32 33 34 -35 36 -37 -38 -39 40
1.70/1.77	v  -41 -42 43 44 45 -46 47 48 49 -50
1.70/1.77	v  -51 -52 53 -54 55 56 57 58 59 60
1.70/1.77	v  -61 -62 63 64 -65 66 67 -68 -69 -70
1.70/1.77	v  -71 -72 73 74 -75 76 77 -78 -79 80
1.70/1.77	v  81 -82 83 84 85 -86 87 88 89 90
1.70/1.77	v  91 -92 -93 -94 95 96 97 -98 99 100
1.70/1.77	v  -101 102 103 104 105 106 -107 -108 -109 -110
1.70/1.77	v  -111 112 -113 114 115 116 -117 -118 -119 -120
1.70/1.77	v  -121 122 123 -124 125 126 -127 128 -129 130
1.70/1.77	v  131 -132 -133 -134 135 136 137 138 139 140
1.70/1.77	v  141 142 -143 144 -145 -146 147 -148 -149 -150
1.70/1.77	v  0
1.70/1.77	c SearchSteps = 1023361
1.70/1.77	c SolveTime = 1.77

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-3162546-1301701112/watcher-3162546-1301701112 -o /tmp/evaluation-result-3162546-1301701112/solver-3162546-1301701112 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162546-1301701112.cnf 2028873881 

running on 2 cores: 0,2

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: 3.96 3.97 3.91 4/189 8884
/proc/meminfo: memFree=18653784/32950928 swapFree=67111528/67111528
[pid=8884] ppid=8882 vsize=12228 CPUtime=0 cores=0,2
/proc/8884/stat : 8884 (sparrow2011) R 8882 8884 8304 0 -1 4202496 466 0 0 0 0 0 0 0 25 0 1 0 360341840 12521472 404 33554432000 4194304 4568220 140735647412352 18446744073709551615 4453384 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/8884/statm: 3057 404 164 92 0 1441 0

[startup+0.059921 s]
/proc/loadavg: 3.96 3.97 3.91 4/189 8884
/proc/meminfo: memFree=18653784/32950928 swapFree=67111528/67111528
[pid=8884] ppid=8882 vsize=12228 CPUtime=0.05 cores=0,2
/proc/8884/stat : 8884 (sparrow2011) R 8882 8884 8304 0 -1 4202496 490 0 0 0 5 0 0 0 25 0 1 0 360341840 12521472 428 33554432000 4194304 4568220 140735647412352 18446744073709551615 4240176 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/8884/statm: 3057 428 172 92 0 1441 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 12228

[startup+0.100914 s]
/proc/loadavg: 3.96 3.97 3.91 4/189 8884
/proc/meminfo: memFree=18653784/32950928 swapFree=67111528/67111528
[pid=8884] ppid=8882 vsize=12228 CPUtime=0.1 cores=0,2
/proc/8884/stat : 8884 (sparrow2011) R 8882 8884 8304 0 -1 4202496 490 0 0 0 10 0 0 0 25 0 1 0 360341840 12521472 428 33554432000 4194304 4568220 140735647412352 18446744073709551615 4239286 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/8884/statm: 3057 428 172 92 0 1441 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 12228

[startup+0.300936 s]
/proc/loadavg: 3.96 3.97 3.91 4/189 8884
/proc/meminfo: memFree=18653784/32950928 swapFree=67111528/67111528
[pid=8884] ppid=8882 vsize=12228 CPUtime=0.3 cores=0,2
/proc/8884/stat : 8884 (sparrow2011) R 8882 8884 8304 0 -1 4202496 490 0 0 0 30 0 0 0 25 0 1 0 360341840 12521472 428 33554432000 4194304 4568220 140735647412352 18446744073709551615 4240189 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/8884/statm: 3057 428 172 92 0 1441 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 12228

[startup+0.700806 s]
/proc/loadavg: 3.96 3.97 3.91 4/189 8884
/proc/meminfo: memFree=18653784/32950928 swapFree=67111528/67111528
[pid=8884] ppid=8882 vsize=12228 CPUtime=0.7 cores=0,2
/proc/8884/stat : 8884 (sparrow2011) R 8882 8884 8304 0 -1 4202496 490 0 0 0 70 0 0 0 25 0 1 0 360341840 12521472 428 33554432000 4194304 4568220 140735647412352 18446744073709551615 4239939 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/8884/statm: 3057 428 172 92 0 1441 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 12228

[startup+1.50066 s]
/proc/loadavg: 3.96 3.97 3.91 5/190 8885
/proc/meminfo: memFree=18652420/32950928 swapFree=67111528/67111528
[pid=8884] ppid=8882 vsize=12228 CPUtime=1.5 cores=0,2
/proc/8884/stat : 8884 (sparrow2011) R 8882 8884 8304 0 -1 4202496 490 0 0 0 150 0 0 0 25 0 1 0 360341840 12521472 428 33554432000 4194304 4568220 140735647412352 18446744073709551615 4239472 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/8884/statm: 3057 428 172 92 0 1441 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 12228

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

[startup+1.70062 s]
/proc/loadavg: 3.96 3.97 3.91 5/190 8885
/proc/meminfo: memFree=18652420/32950928 swapFree=67111528/67111528
[pid=8884] ppid=8882 vsize=12228 CPUtime=1.7 cores=0,2
/proc/8884/stat : 8884 (sparrow2011) R 8882 8884 8304 0 -1 4202496 490 0 0 0 170 0 0 0 25 0 1 0 360341840 12521472 428 33554432000 4194304 4568220 140735647412352 18446744073709551615 4240092 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/8884/statm: 3057 428 172 92 0 1441 0
Current children cumulated CPU time (s) 1.7
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 1.77742
CPU time (s): 1.77673
CPU user time (s): 1.77673
CPU system time (s): 0
CPU usage (%): 99.961
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.77673
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= 508
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 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node116 at 2011-04-02 01:38:32
IDJOB=3162546
IDBENCH=82777
IDSOLVER=1573
FILE ID=node116/3162546-1301701112
RUNJOBID= node116-1301698411-8322
PBS_JOBID= 12840745
Free space on /tmp= 70736 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v150-c3195-S1116496771-020.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162546-1301701112/watcher-3162546-1301701112 -o /tmp/evaluation-result-3162546-1301701112/solver-3162546-1301701112 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162546-1301701112.cnf 2028873881

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

MD5SUM BENCH= 55b0e04e9e653549cf2eabcc194b78ff
RANDOM SEED=2028873881

node116.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		: 2666.826
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		: 2666.826
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	: 5226.15
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		: 2666.826
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		: 2666.826
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		: 2666.826
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	: 5332.77
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		: 2666.826
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		: 2666.826
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		: 2666.826
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:     32950928 kB
MemFree:      18653940 kB
Buffers:        382124 kB
Cached:       13536428 kB
SwapCached:          0 kB
Active:        9288112 kB
Inactive:      4701380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18653940 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             424 kB
Writeback:           0 kB
AnonPages:       71160 kB
Mapped:          16004 kB
Slab:           244112 kB
PageTables:       5312 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   270092 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= 70736 MiB
End job on node116 at 2011-04-02 01:38:33