Trace number 3501196

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
PicoGCNF 941UNSAT 1.52877 1.53071

General information on the benchmark

Namegmus/nadel/
edn_20403_12.cnf_0.08000000.unsat.gcnf
MD5SUM394a7e0984d49b55f8676e59b94c5197
Bench CategoryGMUS (GMUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.411936
Satisfiable
(Un)Satisfiability was proved
Number of variables91417
Number of clauses261401
Sum of the clauses size605344
Maximum clause length3
Minimum clause length1
Number of clauses of size 1396
Number of clauses of size 2178067
Number of clauses of size 382938
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50
Number of groups677
Number of clauses in the kernel (group 0)250157
Least number of clauses in a group (except group 0) 1
Greatest number of clauses in a group (except group 0) 20

Solver Data 

0.29/0.38	c [picogcnf] 0.38 seconds: first call to SAT solver returned
0.29/0.38	s UNSATISFIABLE
0.29/0.38	c [picogcnf] 0.38 seconds: <1> reduction to 22 out of 677 (3%)
0.29/0.38	c [picogcnf] 0.38 seconds: <2> reduction to 21 out of 677 (3%)
0.69/0.70	c [picogcnf] 0.71 seconds: <3> reduction to 20 out of 677 (3%)
0.69/0.71	c [picogcnf] 0.71 seconds: <4> reduction to 19 out of 677 (3%)
1.49/1.52	v 27 38 40 41 42 43 44 45 47 112 113 114 115 116 122 123 124 125 126 0
1.49/1.52	c [picogcnf] 1.52 seconds: max memory 12.8 MB
1.49/1.53	c [picogcnf] 1.53 seconds: 4 reductions

Verifier Data 

OK	19

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 /tmp/evaluation-result-3501196-1308041924/watcher-3501196-1308041924 -o /tmp/evaluation-result-3501196-1308041924/solver-3501196-1308041924 -C 1800 -W 1850 -M 7680 picogcnf HOME/instance-3501196-1308041924.gcnf 

running on 2 cores: 5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1850 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: 3.95 3.08 3.16 5/189 26222
/proc/meminfo: memFree=14903600/32951124 swapFree=67050916/67111528
[pid=26222] ppid=26220 vsize=1348 CPUtime=0 cores=5,7
/proc/26222/stat : 26222 (picogcnf) R 26220 26222 14728 0 -1 4202496 268 0 0 0 0 0 0 0 25 0 1 0 896608635 1380352 222 33554432000 134512640 135066516 4288342032 18446744073709551615 134547371 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26222/statm: 337 222 55 136 0 200 0

[startup+0.0563389 s]
/proc/loadavg: 3.95 3.08 3.16 5/189 26222
/proc/meminfo: memFree=14903600/32951124 swapFree=67050916/67111528
[pid=26222] ppid=26220 vsize=6280 CPUtime=0.05 cores=5,7
/proc/26222/stat : 26222 (picogcnf) R 26220 26222 14728 0 -1 4202496 1377 0 0 0 5 0 0 0 25 0 1 0 896608635 6430720 1314 33554432000 134512640 135066516 4288342032 18446744073709551615 134513627 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26222/statm: 1570 1315 56 136 0 1433 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6280

[startup+0.100328 s]
/proc/loadavg: 3.95 3.08 3.16 5/189 26222
/proc/meminfo: memFree=14903600/32951124 swapFree=67050916/67111528
[pid=26222] ppid=26220 vsize=10072 CPUtime=0.09 cores=5,7
/proc/26222/stat : 26222 (picogcnf) R 26220 26222 14728 0 -1 4202496 2335 0 0 0 9 0 0 0 25 0 1 0 896608635 10313728 2272 33554432000 134512640 135066516 4288342032 18446744073709551615 134700638 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26222/statm: 2518 2273 56 136 0 2381 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10072

[startup+0.300291 s]
/proc/loadavg: 3.95 3.08 3.16 5/189 26222
/proc/meminfo: memFree=14903600/32951124 swapFree=67050916/67111528
[pid=26222] ppid=26220 vsize=15608 CPUtime=0.29 cores=5,7
/proc/26222/stat : 26222 (picogcnf) R 26220 26222 14728 0 -1 4202496 3729 0 0 0 29 0 0 0 25 0 1 0 896608635 15982592 3665 33554432000 134512640 135066516 4288342032 18446744073709551615 134533515 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26222/statm: 3902 3665 60 136 0 3765 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15608

[startup+0.700224 s]
/proc/loadavg: 3.95 3.08 3.16 5/189 26222
/proc/meminfo: memFree=14903600/32951124 swapFree=67050916/67111528
[pid=26222] ppid=26220 vsize=16128 CPUtime=0.69 cores=5,7
/proc/26222/stat : 26222 (picogcnf) R 26220 26222 14728 0 -1 4202496 3877 0 0 0 69 0 0 0 25 0 1 0 896608635 16515072 3813 33554432000 134512640 135066516 4288342032 18446744073709551615 134545812 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26222/statm: 4032 3813 77 136 0 3895 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16128

[startup+1.50108 s]
/proc/loadavg: 3.95 3.10 3.16 5/190 26223
/proc/meminfo: memFree=14888728/32951124 swapFree=67050916/67111528
[pid=26222] ppid=26220 vsize=16128 CPUtime=1.49 cores=5,7
/proc/26222/stat : 26222 (picogcnf) R 26220 26222 14728 0 -1 4202496 3879 0 0 0 149 0 0 0 25 0 1 0 896608635 16515072 3815 33554432000 134512640 135066516 4288342032 18446744073709551615 134515327 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26222/statm: 4032 3815 77 136 0 3895 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16128

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

Child status: 20
Real time (s): 1.53071
CPU time (s): 1.52877
CPU user time (s): 1.51977
CPU system time (s): 0.008998
CPU usage (%): 99.873
Max. virtual memory (cumulated for all children) (KiB): 16128

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.51977
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3881
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= 2

runsolver used 0.000999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node146 at 2011-06-14 10:58:44
IDJOB=3501196
IDBENCH=89937
IDSOLVER=1999
FILE ID=node146/3501196-1308041924
RUNJOBID= node146-1308041831-25392
PBS_JOBID= 13563890
Free space on /tmp= 6300 MiB

SOLVER NAME= PicoGCNF 941
BENCH NAME= SAT11/gmus/nadel/edn_20403_12.cnf_0.08000000.unsat.gcnf
COMMAND LINE= picogcnf BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3501196-1308041924/watcher-3501196-1308041924 -o /tmp/evaluation-result-3501196-1308041924/solver-3501196-1308041924 -C 1800 -W 1850 -M 7680  picogcnf HOME/instance-3501196-1308041924.gcnf

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 394a7e0984d49b55f8676e59b94c5197
RANDOM SEED=1323666085

node146.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		: 2666.830
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	: 5333.66
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.86
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		: 2666.830
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	: 5332.75
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:     32951124 kB
MemFree:      14904020 kB
Buffers:        168992 kB
Cached:       16651180 kB
SwapCached:      13448 kB
Active:        1637992 kB
Inactive:     15805276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      14904020 kB
SwapTotal:    67111528 kB
SwapFree:     67050916 kB
Dirty:          261568 kB
Writeback:           0 kB
AnonPages:      621228 kB
Mapped:          10016 kB
Slab:           536676 kB
PageTables:       6260 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   906656 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= 6300 MiB
End job on node146 at 2011-06-14 10:58:45