Trace number 3501188

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 1.36079 1.36101

General information on the benchmark

Namegmus/nadel/
edn_20403_14.cnf_0.10000000.unsat.gcnf
MD5SUMd56032d56be6f6964cc68420e3d76fcd
Bench CategoryGMUS (GMUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.515921
Satisfiable
(Un)Satisfiability was proved
Number of variables113335
Number of clauses324578
Sum of the clauses size751765
Maximum clause length3
Minimum clause length1
Number of clauses of size 1398
Number of clauses of size 2221173
Number of clauses of size 3103007
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50
Number of groups656
Number of clauses in the kernel (group 0)311067
Least number of clauses in a group (except group 0) 1
Greatest number of clauses in a group (except group 0) 24

Solver Data 

0.49/0.52	c [picogcnf] 0.52 seconds: first call to SAT solver returned
0.49/0.52	s UNSATISFIABLE
0.49/0.52	c [picogcnf] 0.53 seconds: <1> reduction to 9 out of 656 (1%)
1.00/1.06	c [picogcnf] 1.06 seconds: <2> reduction to 8 out of 656 (1%)
1.29/1.35	v 97 98 102 103 104 106 160 252 0
1.29/1.35	c [picogcnf] 1.35 seconds: max memory 16.6 MB
1.29/1.36	c [picogcnf] 1.36 seconds: 2 reductions

Verifier Data 

OK	8

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-3501188-1308041897/watcher-3501188-1308041897 -o /tmp/evaluation-result-3501188-1308041897/solver-3501188-1308041897 -C 1800 -W 1850 -M 7680 picogcnf HOME/instance-3501188-1308041897.gcnf 

running on 2 cores: 0,2

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: 3.57 2.95 3.12 4/189 25926
/proc/meminfo: memFree=15415900/32951124 swapFree=67050916/67111528
[pid=25926] ppid=25924 vsize=1348 CPUtime=0 cores=0,2
/proc/25926/stat : 25926 (picogcnf) R 25924 25926 14728 0 -1 4202496 268 0 0 0 0 0 0 0 23 0 1 0 896605968 1380352 222 33554432000 134512640 135066516 4289940496 18446744073709551615 134700638 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25926/statm: 337 222 55 136 0 200 0

[startup+0.082787 s]
/proc/loadavg: 3.57 2.95 3.12 4/189 25926
/proc/meminfo: memFree=15415900/32951124 swapFree=67050916/67111528
[pid=25926] ppid=25924 vsize=7960 CPUtime=0.07 cores=0,2
/proc/25926/stat : 25926 (picogcnf) R 25924 25926 14728 0 -1 4202496 1886 0 0 0 7 0 0 0 23 0 1 0 896605968 8151040 1840 33554432000 134512640 135066516 4289940496 18446744073709551615 134680827 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25926/statm: 1990 1840 56 136 0 1853 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 7960

[startup+0.100785 s]
/proc/loadavg: 3.57 2.95 3.12 4/189 25926
/proc/meminfo: memFree=15415900/32951124 swapFree=67050916/67111528
[pid=25926] ppid=25924 vsize=9928 CPUtime=0.09 cores=0,2
/proc/25926/stat : 25926 (picogcnf) R 25924 25926 14728 0 -1 4202496 2254 0 0 0 9 0 0 0 23 0 1 0 896605968 10166272 2208 33554432000 134512640 135066516 4289940496 18446744073709551615 134680827 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25926/statm: 2482 2208 56 136 0 2345 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9928

[startup+0.300761 s]
/proc/loadavg: 3.57 2.95 3.12 4/189 25926
/proc/meminfo: memFree=15415900/32951124 swapFree=67050916/67111528
[pid=25926] ppid=25924 vsize=19776 CPUtime=0.29 cores=0,2
/proc/25926/stat : 25926 (picogcnf) R 25924 25926 14728 0 -1 4202496 4598 0 0 0 28 1 0 0 25 0 1 0 896605968 20250624 4551 33554432000 134512640 135066516 4289940496 18446744073709551615 134533535 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25926/statm: 4944 4551 60 136 0 4807 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 19776

[startup+0.700675 s]
/proc/loadavg: 3.57 2.95 3.12 4/189 25926
/proc/meminfo: memFree=15415900/32951124 swapFree=67050916/67111528
[pid=25926] ppid=25924 vsize=20296 CPUtime=0.69 cores=0,2
/proc/25926/stat : 25926 (picogcnf) R 25924 25926 14728 0 -1 4202496 4711 0 0 0 68 1 0 0 25 0 1 0 896605968 20783104 4664 33554432000 134512640 135066516 4289940496 18446744073709551615 134540983 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25926/statm: 5074 4664 77 136 0 4937 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 20296

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

[startup+1.10661 s]
/proc/loadavg: 3.57 2.95 3.12 5/190 25927
/proc/meminfo: memFree=15397316/32951124 swapFree=67050916/67111528
[pid=25926] ppid=25924 vsize=20428 CPUtime=1.1 cores=0,2
/proc/25926/stat : 25926 (picogcnf) R 25924 25926 14728 0 -1 4202496 4745 0 0 0 109 1 0 0 25 0 1 0 896605968 20918272 4698 33554432000 134512640 135066516 4289940496 18446744073709551615 134555709 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25926/statm: 5107 4698 77 136 0 4970 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 20428

[startup+1.3006 s]
/proc/loadavg: 3.57 2.95 3.12 5/190 25927
/proc/meminfo: memFree=15397316/32951124 swapFree=67050916/67111528
[pid=25926] ppid=25924 vsize=20428 CPUtime=1.29 cores=0,2
/proc/25926/stat : 25926 (picogcnf) R 25924 25926 14728 0 -1 4202496 4746 0 0 0 128 1 0 0 25 0 1 0 896605968 20918272 4699 33554432000 134512640 135066516 4289940496 18446744073709551615 134540582 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25926/statm: 5107 4699 77 136 0 4970 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 20428

Child status: 20
Real time (s): 1.36101
CPU time (s): 1.36079
CPU user time (s): 1.3438
CPU system time (s): 0.016997
CPU usage (%): 99.9837
Max. virtual memory (cumulated for all children) (KiB): 20428

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3438
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4748
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= 10

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node146 at 2011-06-14 10:58:17
IDJOB=3501188
IDBENCH=89929
IDSOLVER=1999
FILE ID=node146/3501188-1308041897
RUNJOBID= node146-1308041831-25389
PBS_JOBID= 13563890
Free space on /tmp= 6356 MiB

SOLVER NAME= PicoGCNF 941
BENCH NAME= SAT11/gmus/nadel/edn_20403_14.cnf_0.10000000.unsat.gcnf
COMMAND LINE= picogcnf BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3501188-1308041897/watcher-3501188-1308041897 -o /tmp/evaluation-result-3501188-1308041897/solver-3501188-1308041897 -C 1800 -W 1850 -M 7680  picogcnf HOME/instance-3501188-1308041897.gcnf

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

MD5SUM BENCH= d56032d56be6f6964cc68420e3d76fcd
RANDOM SEED=103030296

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:      15416568 kB
Buffers:        168600 kB
Cached:       16270892 kB
SwapCached:      13448 kB
Active:        1451172 kB
Inactive:     15481884 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15416568 kB
SwapTotal:    67111528 kB
SwapFree:     67050916 kB
Dirty:          204328 kB
Writeback:           0 kB
AnonPages:      491984 kB
Mapped:          10076 kB
Slab:           535528 kB
PageTables:       5996 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   753204 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= 6356 MiB
End job on node146 at 2011-06-14 10:58:18