Trace number 3171506

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
UmSat 2011-02-25UNSAT 13.024 13.0253

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v250-c1065-S931339469-052.UNKNOWN.cnf
MD5SUM25176c8329756b46b3ca32af3843804f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.213966
Satisfiable
(Un)Satisfiability was proved
Number of variables250
Number of clauses1065
Sum of the clauses size3195
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31065
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

12.99/13.02	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3171506-1301759335/watcher-3171506-1301759335 -o /tmp/evaluation-result-3171506-1301759335/solver-3171506-1301759335 -C 2400 -W 1300 -M 7680 umsat HOME/instance-3171506-1301759335.cnf 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 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: 3.84 3.97 3.93 4/179 6642
/proc/meminfo: memFree=22487052/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=11644 CPUtime=0 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4194304 356 0 0 0 0 0 0 0 19 0 1 0 287536291 11923456 293 33554432000 4194304 4263880 140737163010176 18446744073709551615 4232288 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 2911 293 240 17 0 84 0

[startup+0.00741692 s]
/proc/loadavg: 3.84 3.97 3.93 4/179 6642
/proc/meminfo: memFree=22487052/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=11916 CPUtime=0 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 401 0 0 0 0 0 0 0 19 0 1 0 287536291 12201984 338 33554432000 4194304 4263880 140737163010176 18446744073709551615 218370357846 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 2979 339 244 17 0 152 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 11916

[startup+0.100436 s]
/proc/loadavg: 3.84 3.97 3.93 4/179 6642
/proc/meminfo: memFree=22487052/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=12048 CPUtime=0.09 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 468 0 0 0 9 0 0 0 19 0 1 0 287536291 12337152 405 33554432000 4194304 4263880 140737163010176 18446744073709551615 4215093 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 3012 405 247 17 0 185 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12048

[startup+0.3004 s]
/proc/loadavg: 3.84 3.97 3.93 4/179 6642
/proc/meminfo: memFree=22487052/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=12312 CPUtime=0.29 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 518 0 0 0 29 0 0 0 20 0 1 0 287536291 12607488 455 33554432000 4194304 4263880 140737163010176 18446744073709551615 4207892 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 3078 455 247 17 0 251 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12312

[startup+0.700327 s]
/proc/loadavg: 3.84 3.97 3.93 4/179 6642
/proc/meminfo: memFree=22487052/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=12572 CPUtime=0.69 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 600 0 0 0 69 0 0 0 20 0 1 0 287536291 12873728 537 33554432000 4194304 4263880 140737163010176 18446744073709551615 4206237 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 3143 537 247 17 0 316 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12572

[startup+1.50019 s]
/proc/loadavg: 3.84 3.97 3.93 5/190 6686
/proc/meminfo: memFree=22479324/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=12948 CPUtime=1.49 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 688 0 0 0 149 0 0 0 23 0 1 0 287536291 13258752 625 33554432000 4194304 4263880 140737163010176 18446744073709551615 4205763 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 3237 625 247 17 0 410 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12948

[startup+3.1009 s]
/proc/loadavg: 3.84 3.97 3.93 5/190 6686
/proc/meminfo: memFree=22474984/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=13384 CPUtime=3.09 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 804 0 0 0 309 0 0 0 25 0 1 0 287536291 13705216 741 33554432000 4194304 4263880 140737163010176 18446744073709551615 4205748 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 3346 741 247 17 0 519 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13384

[startup+6.30035 s]
/proc/loadavg: 3.93 3.99 3.93 5/190 6686
/proc/meminfo: memFree=22468708/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=14180 CPUtime=6.29 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 989 0 0 0 629 0 0 0 25 0 1 0 287536291 14520320 926 33554432000 4194304 4263880 140737163010176 18446744073709551615 4207812 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 3545 926 247 17 0 718 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14180

[startup+12.7002 s]
/proc/loadavg: 3.94 3.99 3.93 5/190 6686
/proc/meminfo: memFree=22461628/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=15184 CPUtime=12.69 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 1233 0 0 0 1269 0 0 0 25 0 1 0 287536291 15548416 1170 33554432000 4194304 4263880 140737163010176 18446744073709551615 4244158 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 3796 1170 248 17 0 969 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 15184

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

[startup+12.9002 s]
/proc/loadavg: 3.94 3.99 3.93 5/190 6686
/proc/meminfo: memFree=22461628/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=15184 CPUtime=12.89 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 1235 0 0 0 1289 0 0 0 25 0 1 0 287536291 15548416 1172 33554432000 4194304 4263880 140737163010176 18446744073709551615 4215113 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 3796 1172 248 17 0 969 0
Current children cumulated CPU time (s) 12.89
Current children cumulated vsize (KiB) 15184

[startup+13.0001 s]
/proc/loadavg: 3.94 3.99 3.93 5/190 6686
/proc/meminfo: memFree=22461628/32951124 swapFree=67111528/67111528
[pid=6642] ppid=6640 vsize=15184 CPUtime=12.99 cores=1,3
/proc/6642/stat : 6642 (umsat) R 6640 6642 6331 0 -1 4202496 1241 0 0 0 1299 0 0 0 25 0 1 0 287536291 15548416 1178 33554432000 4194304 4263880 140737163010176 18446744073709551615 4207691 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6642/statm: 3796 1178 248 17 0 969 0
Current children cumulated CPU time (s) 12.99
Current children cumulated vsize (KiB) 15184

Child status: 0
Real time (s): 13.0253
CPU time (s): 13.024
CPU user time (s): 13.023
CPU system time (s): 0.000999
CPU usage (%): 99.9902
Max. virtual memory (cumulated for all children) (KiB): 15184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.023
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= 1248
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= 9
involuntary context switches= 10

runsolver used 0.018997 second user time and 0.046992 second system time

The end

Launcher Data 

Begin job on node101 at 2011-04-02 17:48:55
IDJOB=3171506
IDBENCH=82724
IDSOLVER=1582
FILE ID=node101/3171506-1301759335
RUNJOBID= node101-1301756731-6351
PBS_JOBID= 12841059
Free space on /tmp= 72328 MiB

SOLVER NAME= UmSat 2011-02-25
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v250-c1065-S931339469-052.UNKNOWN.cnf
COMMAND LINE= umsat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3171506-1301759335/watcher-3171506-1301759335 -o /tmp/evaluation-result-3171506-1301759335/solver-3171506-1301759335 -C 2400 -W 1300 -M 7680  umsat HOME/instance-3171506-1301759335.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 25176c8329756b46b3ca32af3843804f
RANDOM SEED=2068469455

node101.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		: 2666.841
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	: 5333.68
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		: 2666.841
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	: 5226.07
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		: 2666.841
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	: 5332.77
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		: 2666.841
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	: 5332.83
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		: 2666.841
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		: 2666.841
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		: 2666.841
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		: 2666.841
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:     32951124 kB
MemFree:      22485464 kB
Buffers:        332320 kB
Cached:        9822080 kB
SwapCached:          0 kB
Active:        6648776 kB
Inactive:      3569496 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22485464 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2352 kB
Writeback:           0 kB
AnonPages:       63780 kB
Mapped:          15212 kB
Slab:           183868 kB
PageTables:       4820 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   223044 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= 72328 MiB
End job on node101 at 2011-04-02 17:49:08