Trace number 3438614

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
PicoSAT 941SAT 1.9797 2.00425

General information on the benchmark

Namecrafted/spence/sgen/
sgen3-n160-s40283905-sat.cnf
MD5SUM8e3c134eb643f2d9a45c884774c054a8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.186971
Satisfiable
(Un)Satisfiability was proved
Number of variables160
Number of clauses384
Sum of the clauses size960
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2320
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 564
Number of clauses of size over 50

Solver Data 

1.90/1.97	s SATISFIABLE
1.97/2.00	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
1.97/2.00	v 26 27 -28 29 30 31 -32 -33 -34 -35 36 -37 38 39 -40 41 -42 43 -44 45 -46 47
1.97/2.00	v 48 49 -50 51 52 53 54 -55 56 57 -58 -59 60 61 -62 -63 64 65 -66 67 -68 69 70
1.97/2.00	v -71 72 73 -74 75 -76 -77 -78 79 -80 81 -82 -83 84 -85 -86 -87 -88 89 -90 -91
1.97/2.00	v -92 -93 94 95 96 97 98 -99 100 101 -102 -103 104 -105 -106 -107 -108 109 110
1.97/2.00	v 111 112 -113 -114 -115 116 -117 118 -119 -120 -121 -122 123 124 -125 -126
1.97/2.00	v -127 -128 -129 130 131 132 -133 -134 -135 136 137 -138 139 140 -141 -142 -143
1.97/2.00	v -144 -145 -146 -147 148 -149 -150 151 -152 -153 -154 -155 156 -157 -158 159
1.97/2.00	v 160 0

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3438614-1306894067/watcher-3438614-1306894067 -o /tmp/evaluation-result-3438614-1306894067/solver-3438614-1306894067 -C 5000 -W 5100 -M 15500 picosat HOME/instance-3438614-1306894067.cnf 

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): 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: 1.92 2.02 1.99 2/464 16852
/proc/meminfo: memFree=3944828/32950928 swapFree=45617060/67111528
[pid=16852] ppid=16850 vsize=1744 CPUtime=0 cores=0,2,4,6
/proc/16852/stat : 16852 (picosat) R 16850 16852 15952 0 -1 4202496 177 0 0 0 0 0 0 0 25 0 1 0 801006479 1785856 123 33554432000 134512640 134603332 4293333120 18446744073709551615 134563632 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/16852/statm: 436 123 97 23 0 62 0

[startup+0.0692669 s]
/proc/loadavg: 1.92 2.02 1.99 2/464 16852
/proc/meminfo: memFree=3944828/32950928 swapFree=45617060/67111528
[pid=16852] ppid=16850 vsize=1744 CPUtime=0.06 cores=0,2,4,6
/proc/16852/stat : 16852 (picosat) R 16850 16852 15952 0 -1 4202496 179 0 0 0 6 0 0 0 25 0 1 0 801006479 1785856 125 33554432000 134512640 134603332 4293333120 18446744073709551615 134550903 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/16852/statm: 436 125 97 23 0 62 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1744

[startup+0.100261 s]
/proc/loadavg: 1.92 2.02 1.99 2/464 16852
/proc/meminfo: memFree=3944828/32950928 swapFree=45617060/67111528
[pid=16852] ppid=16850 vsize=1744 CPUtime=0.09 cores=0,2,4,6
/proc/16852/stat : 16852 (picosat) R 16850 16852 15952 0 -1 4202496 180 0 0 0 9 0 0 0 25 0 1 0 801006479 1785856 126 33554432000 134512640 134603332 4293333120 18446744073709551615 134563449 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/16852/statm: 436 126 97 23 0 62 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1744

[startup+0.300226 s]
/proc/loadavg: 1.92 2.02 1.99 2/464 16852
/proc/meminfo: memFree=3944828/32950928 swapFree=45617060/67111528
[pid=16852] ppid=16850 vsize=1744 CPUtime=0.29 cores=0,2,4,6
/proc/16852/stat : 16852 (picosat) R 16850 16852 15952 0 -1 4202496 182 0 0 0 29 0 0 0 25 0 1 0 801006479 1785856 128 33554432000 134512640 134603332 4293333120 18446744073709551615 134527335 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/16852/statm: 436 128 97 23 0 62 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1744

[startup+0.700205 s]
/proc/loadavg: 1.92 2.02 1.99 2/464 16852
/proc/meminfo: memFree=3944828/32950928 swapFree=45617060/67111528
[pid=16852] ppid=16850 vsize=1744 CPUtime=0.69 cores=0,2,4,6
/proc/16852/stat : 16852 (picosat) R 16850 16852 15952 0 -1 4202496 184 0 0 0 69 0 0 0 25 0 1 0 801006479 1785856 130 33554432000 134512640 134603332 4293333120 18446744073709551615 134566346 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/16852/statm: 436 130 97 23 0 62 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1744

[startup+1.50112 s]
/proc/loadavg: 1.92 2.02 1.99 3/465 16853
/proc/meminfo: memFree=3944084/32950928 swapFree=45617060/67111528
[pid=16852] ppid=16850 vsize=1744 CPUtime=1.5 cores=0,2,4,6
/proc/16852/stat : 16852 (picosat) R 16850 16852 15952 0 -1 4202496 187 0 0 0 150 0 0 0 25 0 1 0 801006479 1785856 133 33554432000 134512640 134603332 4293333120 18446744073709551615 134550988 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/16852/statm: 436 133 97 23 0 62 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1744

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

[startup+1.90105 s]
/proc/loadavg: 1.92 2.02 1.99 3/465 16853
/proc/meminfo: memFree=3944084/32950928 swapFree=45617060/67111528
[pid=16852] ppid=16850 vsize=1744 CPUtime=1.9 cores=0,2,4,6
/proc/16852/stat : 16852 (picosat) R 16850 16852 15952 0 -1 4202496 188 0 0 0 190 0 0 0 25 0 1 0 801006479 1785856 134 33554432000 134512640 134603332 4293333120 18446744073709551615 134565706 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/16852/statm: 436 134 97 23 0 62 0
Current children cumulated CPU time (s) 1.9
Current children cumulated vsize (KiB) 1744

[startup+2.00093 s]
/proc/loadavg: 1.92 2.02 1.99 3/465 16853
/proc/meminfo: memFree=3944084/32950928 swapFree=45617060/67111528
[pid=16852] ppid=16850 vsize=1748 CPUtime=1.97 cores=0,2,4,6
/proc/16852/stat : 16852 (picosat) D 16850 16852 15952 0 -1 4202496 190 0 0 0 197 0 0 0 25 0 1 0 801006479 1789952 136 33554432000 134512640 134603332 4293333120 18446744073709551615 11488976 0 0 4096 0 18446744071562234166 0 0 17 2 0 0 0
/proc/16852/statm: 437 136 98 23 0 63 0
Current children cumulated CPU time (s) 1.97
Current children cumulated vsize (KiB) 1748

Child status: 10
Real time (s): 2.00425
CPU time (s): 1.9797
CPU user time (s): 1.9787
CPU system time (s): 0.000999
CPU usage (%): 98.7752
Max. virtual memory (cumulated for all children) (KiB): 1748

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9787
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= 201
page faults= 1
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= 4

runsolver used 0.010998 second user time and 0.038994 second system time

The end

Launcher Data 

Begin job on node123 at 2011-06-01 04:07:47
IDJOB=3438614
IDBENCH=83138
IDSOLVER=1934
FILE ID=node123/3438614-1306894067
RUNJOBID= node123-1306884536-15970
PBS_JOBID= 13488453
Free space on /tmp= 16292 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT11/crafted/spence/sgen/sgen3-n160-s40283905-sat.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3438614-1306894067/watcher-3438614-1306894067 -o /tmp/evaluation-result-3438614-1306894067/solver-3438614-1306894067 -C 5000 -W 5100 -M 15500  picosat HOME/instance-3438614-1306894067.cnf

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

MD5SUM BENCH= 8e3c134eb643f2d9a45c884774c054a8
RANDOM SEED=37481053

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:       3945116 kB
Buffers:         88684 kB
Cached:       26038504 kB
SwapCached:       9236 kB
Active:       14254096 kB
Inactive:     13828688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       3945116 kB
SwapTotal:    67111528 kB
SwapFree:     45617060 kB
Dirty:               8 kB
Writeback:           0 kB
AnonPages:     1954036 kB
Mapped:          23936 kB
Slab:           775920 kB
PageTables:      77888 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 133383432 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= 16292 MiB
End job on node123 at 2011-06-01 04:07:49