Trace number 3501197

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 8.10677 8.10633

General information on the benchmark

Namegmus/nadel/
edn_24095_4.cnf_0.11000000.unsat.gcnf
MD5SUM6460b1c55d6c2c50b5032ddb35fe99b7
Bench CategoryGMUS (GMUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.26481
Satisfiable
(Un)Satisfiability was proved
Number of variables330101
Number of clauses958681
Sum of the clauses size2223565
Maximum clause length3
Minimum clause length1
Number of clauses of size 11762
Number of clauses of size 2648954
Number of clauses of size 3307965
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50
Number of groups4030
Number of clauses in the kernel (group 0)926959
Least number of clauses in a group (except group 0) 1
Greatest number of clauses in a group (except group 0) 10

Solver Data 

1.39/1.46	c [picogcnf] 1.46 seconds: first call to SAT solver returned
1.39/1.46	s UNSATISFIABLE
1.39/1.46	c [picogcnf] 1.46 seconds: <1> reduction to 13 out of 4030 (0%)
7.99/8.07	v 1519 1521 1526 1532 1537 1541 1543 1552 1553 1556 1561 1564 1570 0
7.99/8.07	c [picogcnf] 8.07 seconds: max memory 48.5 MB
8.09/8.10	c [picogcnf] 8.11 seconds: 1 reductions

Verifier Data 

OK	13

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-3501197-1308041925/watcher-3501197-1308041925 -o /tmp/evaluation-result-3501197-1308041925/solver-3501197-1308041925 -C 1800 -W 1850 -M 7680 picogcnf HOME/instance-3501197-1308041925.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 3.10 3.16 4/189 26259
/proc/meminfo: memFree=14866528/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=1352 CPUtime=0 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 267 0 0 0 0 0 0 0 25 0 1 0 896608837 1384448 221 33554432000 134512640 135066516 4287563808 18446744073709551615 134644048 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 338 221 55 136 0 201 0

[startup+0.0724729 s]
/proc/loadavg: 3.95 3.10 3.16 4/189 26259
/proc/meminfo: memFree=14866528/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=7520 CPUtime=0.06 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 1712 0 0 0 6 0 0 0 25 0 1 0 896608837 7700480 1666 33554432000 134512640 135066516 4287563808 18446744073709551615 134680827 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 1880 1666 56 136 0 1743 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 7520

[startup+0.100469 s]
/proc/loadavg: 3.95 3.10 3.16 4/189 26259
/proc/meminfo: memFree=14866528/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=10972 CPUtime=0.09 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 2370 0 0 0 9 0 0 0 25 0 1 0 896608837 11235328 2324 33554432000 134512640 135066516 4287563808 18446744073709551615 134518305 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 2743 2324 56 136 0 2606 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10972

[startup+0.300429 s]
/proc/loadavg: 3.95 3.10 3.16 4/189 26259
/proc/meminfo: memFree=14866528/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=27560 CPUtime=0.29 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 6489 0 0 0 27 2 0 0 25 0 1 0 896608837 28221440 6443 33554432000 134512640 135066516 4287563808 18446744073709551615 134700638 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 6890 6443 56 136 0 6753 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 27560

[startup+0.70036 s]
/proc/loadavg: 3.95 3.10 3.16 4/189 26259
/proc/meminfo: memFree=14866528/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=54848 CPUtime=0.69 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 12977 0 0 0 66 3 0 0 25 0 1 0 896608837 56164352 12930 33554432000 134512640 135066516 4287563808 18446744073709551615 134514982 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 13712 12930 60 136 0 13575 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 54848

[startup+1.50022 s]
/proc/loadavg: 3.95 3.10 3.16 5/190 26261
/proc/meminfo: memFree=14814948/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=55272 CPUtime=1.49 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 13076 0 0 0 146 3 0 0 25 0 1 0 896608837 56598528 13029 33554432000 134512640 135066516 4287563808 18446744073709551615 134515332 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 13818 13029 77 136 0 13681 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 55272

[startup+3.10094 s]
/proc/loadavg: 3.95 3.10 3.16 5/190 26261
/proc/meminfo: memFree=14813220/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=57064 CPUtime=3.09 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 13302 0 0 0 306 3 0 0 25 0 1 0 896608837 58433536 13255 33554432000 134512640 135066516 4287563808 18446744073709551615 134580928 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 14266 13255 77 136 0 14129 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 57064

[startup+6.30036 s]
/proc/loadavg: 3.95 3.11 3.17 5/190 26261
/proc/meminfo: memFree=14812476/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=57064 CPUtime=6.29 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 13350 0 0 0 626 3 0 0 25 0 1 0 896608837 58433536 13303 33554432000 134512640 135066516 4287563808 18446744073709551615 134540607 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 14266 13303 77 136 0 14129 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 57064

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

[startup+7.10021 s]
/proc/loadavg: 3.95 3.11 3.17 5/190 26261
/proc/meminfo: memFree=14811856/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=57064 CPUtime=7.09 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 13350 0 0 0 706 3 0 0 25 0 1 0 896608837 58433536 13303 33554432000 134512640 135066516 4287563808 18446744073709551615 134582193 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 14266 13303 77 136 0 14129 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 57064

[startup+7.90107 s]
/proc/loadavg: 3.95 3.11 3.17 5/190 26261
/proc/meminfo: memFree=14812136/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=57064 CPUtime=7.89 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 13350 0 0 0 786 3 0 0 25 0 1 0 896608837 58433536 13303 33554432000 134512640 135066516 4287563808 18446744073709551615 134515372 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 14266 13303 77 136 0 14129 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 57064

[startup+8.10104 s]
/proc/loadavg: 3.95 3.11 3.17 5/190 26261
/proc/meminfo: memFree=14812136/32951124 swapFree=67050916/67111528
[pid=26259] ppid=26257 vsize=52964 CPUtime=8.09 cores=5,7
/proc/26259/stat : 26259 (picogcnf) R 26257 26259 14728 0 -1 4202496 13350 0 0 0 806 3 0 0 25 0 1 0 896608837 54235136 12366 33554432000 134512640 135066516 4287563808 18446744073709551615 134669097 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26259/statm: 13241 12366 77 136 0 13104 0
Current children cumulated CPU time (s) 8.09
Current children cumulated vsize (KiB) 52964

Child status: 20
Real time (s): 8.10633
CPU time (s): 8.10677
CPU user time (s): 8.06577
CPU system time (s): 0.040993
CPU usage (%): 100.005
Max. virtual memory (cumulated for all children) (KiB): 57064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.06577
system time used= 0.040993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13352
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= 13

runsolver used 0.012998 second user time and 0.035994 second system time

The end

Launcher Data 

Begin job on node146 at 2011-06-14 10:58:46
IDJOB=3501197
IDBENCH=89938
IDSOLVER=1999
FILE ID=node146/3501197-1308041925
RUNJOBID= node146-1308041831-25392
PBS_JOBID= 13563890
Free space on /tmp= 6284 MiB

SOLVER NAME= PicoGCNF 941
BENCH NAME= SAT11/gmus/nadel/edn_24095_4.cnf_0.11000000.unsat.gcnf
COMMAND LINE= picogcnf BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3501197-1308041925/watcher-3501197-1308041925 -o /tmp/evaluation-result-3501197-1308041925/solver-3501197-1308041925 -C 1800 -W 1850 -M 7680  picogcnf HOME/instance-3501197-1308041925.gcnf

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

MD5SUM BENCH= 6460b1c55d6c2c50b5032ddb35fe99b7
RANDOM SEED=2126581962

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:      14866700 kB
Buffers:        169012 kB
Cached:       16688396 kB
SwapCached:      13448 kB
Active:        1654168 kB
Inactive:     15826316 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      14866700 kB
SwapTotal:    67111528 kB
SwapFree:     67050916 kB
Dirty:          277632 kB
Writeback:           0 kB
AnonPages:      621580 kB
Mapped:          10028 kB
Slab:           536864 kB
PageTables:       6116 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   908164 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= 6284 MiB
End job on node146 at 2011-06-14 10:58:54