Trace number 3500991

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
MUSer 2011-02-10UNSAT 3.24451 3.29723

General information on the benchmark

Namegmus/nadel/
edn_20403_16.cnf_0.29000000.unsat.gcnf
MD5SUMb23409a85479896f827aa127538bdef8
Bench CategoryGMUS (GMUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.532918
Satisfiable
(Un)Satisfiability was proved
Number of variables135198
Number of clauses387583
Sum of the clauses size897780
Maximum clause length3
Minimum clause length1
Number of clauses of size 1400
Number of clauses of size 2264169
Number of clauses of size 3123014
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50
Number of groups638
Number of clauses in the kernel (group 0)371916
Least number of clauses in a group (except group 0) 1
Greatest number of clauses in a group (except group 0) 28

Solver Data 

0.00/0.05	c *** MUSer: a MUS extractor ***
0.00/0.05	c *** release date: 2011210 ***
0.00/0.05	c *** release ref: f95464aa99ac ***
0.00/0.05	c *** built: 2011-Feb-10 00:59 ***
0.00/0.05	c *** author: Joao Marques-Silva (jpms@ucd.ie) ***
0.00/0.05	c 
0.00/0.05	c *** instance: HOME/instance-3500991-1308041268.gcnf ***
0.00/0.05	c 
0.44/0.53	c Parsing CPU Time: 0.461929
0.44/0.53	c Running MUSer ...
2.33/2.43	c 0.00% completed ... 
3.14/3.27	c 100.00% completed ... 
3.14/3.27	c MUS size: 42
3.14/3.27	s UNSATISFIABLE
3.14/3.27	v 10 11 0
3.14/3.29	c Terminating MUSer ...
3.14/3.29	c CPU Time: 3.15

Verifier Data 

OK	2

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-3500991-1308041268/watcher-3500991-1308041268 -o /tmp/evaluation-result-3500991-1308041268/solver-3500991-1308041268 -C 1800 -W 1850 -M 7680 muser -comp -grp HOME/instance-3500991-1308041268.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: 0.32 0.07 0.02 2/178 20052
/proc/meminfo: memFree=32014956/32951124 swapFree=67056676/67111528
[pid=20052] ppid=20044 vsize=11804 CPUtime=0 cores=0,2
/proc/20052/stat : 20052 (runsolver) S 20044 20052 20003 0 -1 4202560 40 0 0 0 0 0 0 0 20 0 1 0 915725306 12087296 51 33554432000 4194304 5436572 140735868851168 18446744073709551615 4883175 0 2147483391 4096 24578 18446744071699960631 0 0 17 2 0 0 0
/proc/20052/statm: 2951 51 31 304 0 2643 0

[startup+0.040673 s]
/proc/loadavg: 0.32 0.07 0.02 2/178 20052
/proc/meminfo: memFree=32014956/32951124 swapFree=67056676/67111528
[pid=20052] ppid=20044 vsize=11804 CPUtime=0 cores=0,2
/proc/20052/stat : 20052 (runsolver) S 20044 20052 20003 0 -1 4202560 45 0 0 0 0 0 0 0 21 0 1 0 915725306 12087296 56 33554432000 4194304 5436572 140735868851168 18446744073709551615 5057063 0 2147483391 4096 24578 18446744071699199166 0 0 17 2 0 0 0
/proc/20052/statm: 2951 56 36 304 0 2643 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 11804

[startup+0.10066 s]
/proc/loadavg: 0.32 0.07 0.02 2/178 20052
/proc/meminfo: memFree=32014956/32951124 swapFree=67056676/67111528
[pid=20052] ppid=20044 vsize=13944 CPUtime=0.04 cores=0,2
/proc/20052/stat : 20052 (muser) R 20044 20052 20003 0 -1 4202496 3120 0 0 0 4 0 0 0 21 0 1 0 915725306 14278656 2925 33554432000 4194304 5696331 140735618210160 18446744073709551615 4208097 0 0 4096 24615 0 0 0 17 0 0 0 0
/proc/20052/statm: 3486 2925 114 367 0 3116 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13944

[startup+0.30061 s]
/proc/loadavg: 0.32 0.07 0.02 2/178 20052
/proc/meminfo: memFree=32014956/32951124 swapFree=67056676/67111528
[pid=20052] ppid=20044 vsize=47424 CPUtime=0.24 cores=0,2
/proc/20052/stat : 20052 (muser) R 20044 20052 20003 0 -1 4202496 12342 0 0 0 23 1 0 0 21 0 1 0 915725306 48562176 11277 33554432000 4194304 5696331 140735618210160 18446744073709551615 4208097 0 0 4096 24615 0 0 0 17 0 0 0 0
/proc/20052/statm: 11856 11277 114 367 0 11486 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 47424

[startup+0.700554 s]
/proc/loadavg: 0.32 0.07 0.02 2/178 20052
/proc/meminfo: memFree=32014956/32951124 swapFree=67056676/67111528
[pid=20052] ppid=20044 vsize=124720 CPUtime=0.64 cores=0,2
/proc/20052/stat : 20052 (muser) R 20044 20052 20003 0 -1 4202496 33032 0 0 0 61 3 0 0 22 0 1 0 915725306 127713280 30089 33554432000 4194304 5696331 140735618210160 18446744073709551615 4965206 0 0 4096 24615 0 0 0 17 0 0 0 0
/proc/20052/statm: 31180 30091 139 367 0 30810 0
Current children cumulated CPU time (s) 0.64
Current children cumulated vsize (KiB) 124720

[startup+1.5004 s]
/proc/loadavg: 0.32 0.07 0.02 5/185 20066
/proc/meminfo: memFree=31566668/32951124 swapFree=67056676/67111528
[pid=20052] ppid=20044 vsize=109584 CPUtime=1.44 cores=0,2
/proc/20052/stat : 20052 (muser) R 20044 20052 20003 0 -1 4202496 49919 0 0 0 138 6 0 0 25 0 1 0 915725306 112214016 26925 33554432000 4194304 5696331 140735618210160 18446744073709551615 4351780 0 0 4096 24615 0 0 0 17 0 0 0 0
/proc/20052/statm: 27396 26925 142 367 0 27026 0
Current children cumulated CPU time (s) 1.44
Current children cumulated vsize (KiB) 109584

[startup+3.1011 s]
/proc/loadavg: 0.69 0.15 0.05 5/190 20076
/proc/meminfo: memFree=31181484/32951124 swapFree=67056676/67111528
[pid=20052] ppid=20044 vsize=139380 CPUtime=3.03 cores=0,2
/proc/20052/stat : 20052 (muser) R 20044 20052 20003 0 -1 4202496 64416 0 0 0 295 8 0 0 25 0 1 0 915725306 142725120 33629 33554432000 4194304 5696331 140735618210160 18446744073709551615 4417436 0 0 4096 24615 0 0 0 17 0 0 0 0
/proc/20052/statm: 34845 33629 149 367 0 34475 0
Current children cumulated CPU time (s) 3.03
Current children cumulated vsize (KiB) 139380

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

[startup+3.20109 s]
/proc/loadavg: 0.69 0.15 0.05 4/186 20103
/proc/meminfo: memFree=31055800/32951124 swapFree=67056676/67111528
[pid=20052] ppid=20044 vsize=139380 CPUtime=3.14 cores=0,2
/proc/20052/stat : 20052 (muser) R 20044 20052 20003 0 -1 4202496 64684 0 0 0 306 8 0 0 25 0 1 0 915725306 142725120 33897 33554432000 4194304 5696331 140735618210160 18446744073709551615 4417029 0 0 4096 24615 0 0 0 17 0 0 0 0
/proc/20052/statm: 34845 33897 149 367 0 34475 0
Current children cumulated CPU time (s) 3.14
Current children cumulated vsize (KiB) 139380

Child status: 20
Real time (s): 3.29723
CPU time (s): 3.24451
CPU user time (s): 3.14752
CPU system time (s): 0.096985
CPU usage (%): 98.4008
Max. virtual memory (cumulated for all children) (KiB): 143412

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.14752
system time used= 0.096985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 64686
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= 6
involuntary context switches= 7

runsolver used 0.005999 second user time and 0.018997 second system time

The end

Launcher Data 

Begin job on node136 at 2011-06-14 10:47:53
IDJOB=3500991
IDBENCH=89931
IDSOLVER=1998
FILE ID=node136/3500991-1308041268
RUNJOBID= node136-1308041268-20021
PBS_JOBID= 13564388
Free space on /tmp= 74028 MiB

SOLVER NAME= MUSer 2011-02-10
BENCH NAME= SAT11/gmus/nadel/edn_20403_16.cnf_0.29000000.unsat.gcnf
COMMAND LINE= muser -comp -grp BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3500991-1308041268/watcher-3500991-1308041268 -o /tmp/evaluation-result-3500991-1308041268/solver-3500991-1308041268 -C 1800 -W 1850 -M 7680  muser -comp -grp HOME/instance-3500991-1308041268.gcnf

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

MD5SUM BENCH= b23409a85479896f827aa127538bdef8
RANDOM SEED=1753580826

node136.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		: 2666.809
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	: 5333.61
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.76
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		: 2666.809
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		: 2666.809
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	: 5332.83
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		: 2666.809
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		: 2666.809
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      32022688 kB
Buffers:        237612 kB
Cached:         461080 kB
SwapCached:       8544 kB
Active:         391412 kB
Inactive:       326708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      32022688 kB
SwapTotal:    67111528 kB
SwapFree:     67056676 kB
Dirty:           51060 kB
Writeback:           0 kB
AnonPages:       16948 kB
Mapped:          12652 kB
Slab:           145432 kB
PageTables:       5124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   187480 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= 73940 MiB
End job on node136 at 2011-06-14 10:47:57