Trace number 3499822

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 0.25996 0.260756

General information on the benchmark

Namecrafted/spence/sgen/
sgen3-n140-s18527668-sat.cnf
MD5SUMd6f66d406779966e0b3cbed9097980e3
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.234964
Satisfiable
(Un)Satisfiability was proved
Number of variables140
Number of clauses336
Sum of the clauses size840
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2280
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 556
Number of clauses of size over 50

Solver Data 

0.20/0.26	c 0 clauses are redundant and removed
0.20/0.26	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.20/0.26	c 0 vars are fixed and 0 clauses are removed after lookahead
0.20/0.26	c initial seed is 1333119841
0.20/0.26	c try=1 flip j=1080774 walk=947832 seed 1333119858
0.20/0.26	c A solution is found
0.20/0.26	s SATISFIABLE
0.20/0.26	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 
0.20/0.26	v 0 
0.20/0.26	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

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 /var/tmp/evaluation-result-3499822-1307975065/watcher-3499822-1307975065 -o /var/tmp/evaluation-result-3499822-1307975065/solver-3499822-1307975065 -C 5000 -W 5100 -M 15500 sattime+ HOME/instance-3499822-1307975065.cnf 1333119728 

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: 1.15 1.06 1.33 2/177 18406
/proc/meminfo: memFree=5061452/32950928 swapFree=67055156/67111528
[pid=18406] ppid=18404 vsize=880764 CPUtime=0 cores=1,3,5,7
/proc/18406/stat : 18406 (sattime+) R 18404 18406 16976 0 -1 4202496 246 0 0 0 0 0 0 0 25 0 1 0 909106269 901902336 187 33554432000 4194304 4228340 140734714782208 18446744073709551615 4217614 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18406/statm: 220191 187 116 9 0 217348 0

[startup+0.0519539 s]
/proc/loadavg: 1.15 1.06 1.33 2/177 18406
/proc/meminfo: memFree=5061452/32950928 swapFree=67055156/67111528
[pid=18406] ppid=18404 vsize=880764 CPUtime=0.05 cores=1,3,5,7
/proc/18406/stat : 18406 (sattime+) R 18404 18406 16976 0 -1 4202496 246 0 0 0 5 0 0 0 25 0 1 0 909106269 901902336 187 33554432000 4194304 4228340 140734714782208 18446744073709551615 4217336 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/18406/statm: 220191 187 116 9 0 217348 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 880764

[startup+0.100945 s]
/proc/loadavg: 1.15 1.06 1.33 2/177 18406
/proc/meminfo: memFree=5061452/32950928 swapFree=67055156/67111528
[pid=18406] ppid=18404 vsize=880764 CPUtime=0.1 cores=1,3,5,7
/proc/18406/stat : 18406 (sattime+) R 18404 18406 16976 0 -1 4202496 246 0 0 0 10 0 0 0 25 0 1 0 909106269 901902336 187 33554432000 4194304 4228340 140734714782208 18446744073709551615 4219058 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/18406/statm: 220191 187 116 9 0 217348 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 880764

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

[startup+0.200928 s]
/proc/loadavg: 1.15 1.06 1.33 2/177 18406
/proc/meminfo: memFree=5061452/32950928 swapFree=67055156/67111528
[pid=18406] ppid=18404 vsize=880764 CPUtime=0.2 cores=1,3,5,7
/proc/18406/stat : 18406 (sattime+) R 18404 18406 16976 0 -1 4202496 246 0 0 0 20 0 0 0 25 0 1 0 909106269 901902336 187 33554432000 4194304 4228340 140734714782208 18446744073709551615 4216811 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/18406/statm: 220191 187 116 9 0 217348 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 880764

Child status: 10
Real time (s): 0.260756
CPU time (s): 0.25996
CPU user time (s): 0.25996
CPU system time (s): 0
CPU usage (%): 99.6947
Max. virtual memory (cumulated for all children) (KiB): 880764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.25996
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= 250
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= 3

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node123 at 2011-06-13 16:24:25
IDJOB=3499822
IDBENCH=83155
IDSOLVER=1996
FILE ID=node123/3499822-1307975065
RUNJOBID= node123-1307975051-18302
PBS_JOBID= 13559705
Free space on /var/tmp= 2888 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/crafted/spence/sgen/sgen3-n140-s18527668-sat.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /var/tmp/evaluation-result-3499822-1307975065/watcher-3499822-1307975065 -o /var/tmp/evaluation-result-3499822-1307975065/solver-3499822-1307975065 -C 5000 -W 5100 -M 15500  sattime+ HOME/instance-3499822-1307975065.cnf 1333119728

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

MD5SUM BENCH= d6f66d406779966e0b3cbed9097980e3
RANDOM SEED=1333119728

node123.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		: 2666.838
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	: 5333.67
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		: 2666.838
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		: 2666.838
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		: 2666.838
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		: 2666.838
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		: 2666.838
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	: 5332.80
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		: 2666.838
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	: 5332.74
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		: 2666.838
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:     32950928 kB
MemFree:       5062136 kB
Buffers:        123044 kB
Cached:       26861568 kB
SwapCached:      10120 kB
Active:       11225992 kB
Inactive:     15778032 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       5062136 kB
SwapTotal:    67111528 kB
SwapFree:     67055156 kB
Dirty:           16040 kB
Writeback:           0 kB
AnonPages:       16988 kB
Mapped:          12960 kB
Slab:           820848 kB
PageTables:       4584 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  1088068 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 /var/tmp at the end= 2880 MiB
End job on node123 at 2011-06-13 16:24:25