Trace number 3265393

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
SApperloT 2011-03-23UNSAT 4.42233 4.42609

General information on the benchmark

NameSAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/
grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
MD5SUM384c65902b197ca2c64d2ee8a3c64089
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.374942
Satisfiable
(Un)Satisfiability was proved
Number of variables62750
Number of clauses124752
Sum of the clauses size498502
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2250
Number of clauses of size 30
Number of clauses of size 4124500
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

4.40/4.42	
4.40/4.42	s UNSATISFIABLE
4.40/4.42	c Reason for Unsat: Binary clause causes conflict in simplification

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3265393-1303580156/watcher-3265393-1303580156 -o /tmp/evaluation-result-3265393-1303580156/solver-3265393-1303580156 -C 2400 -W 1300 -M 7680 SApperloT HOME/instance-3265393-1303580156.cnf 

running on 2 cores: 0,2

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: 0.92 1.00 1.50 4/181 11408
/proc/meminfo: memFree=16965268/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=14064 CPUtime=0 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 846 0 0 0 0 0 0 0 21 0 1 0 548246184 14401536 786 33554432000 4194304 4465733 140735512779440 18446744073709551615 4287468 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 3516 797 248 67 0 639 0

[startup+0.07386 s]
/proc/loadavg: 0.92 1.00 1.50 4/181 11408
/proc/meminfo: memFree=16965268/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=21044 CPUtime=0.06 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 4190 0 0 0 6 0 0 0 21 0 1 0 548246184 21549056 2334 33554432000 4194304 4465733 140735512779440 18446744073709551615 4295790 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 5261 2334 250 67 0 2384 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 21044

[startup+0.100875 s]
/proc/loadavg: 0.92 1.00 1.50 4/181 11408
/proc/meminfo: memFree=16965268/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=22684 CPUtime=0.08 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 5481 0 0 0 8 0 0 0 21 0 1 0 548246184 23228416 2708 33554432000 4194304 4465733 140735512779440 18446744073709551615 4277730 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 5671 2708 255 67 0 2794 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 22684

[startup+0.300796 s]
/proc/loadavg: 0.92 1.00 1.50 4/181 11408
/proc/meminfo: memFree=16965268/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=22684 CPUtime=0.28 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 5495 0 0 0 28 0 0 0 22 0 1 0 548246184 23228416 2716 33554432000 4194304 4465733 140735512779440 18446744073709551615 4278048 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 5671 2716 255 67 0 2794 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 22684

[startup+0.70072 s]
/proc/loadavg: 0.92 1.00 1.50 4/181 11408
/proc/meminfo: memFree=16965268/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=22684 CPUtime=0.68 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 5572 0 0 0 68 0 0 0 23 0 1 0 548246184 23228416 2763 33554432000 4194304 4465733 140735512779440 18446744073709551615 4258858 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 5671 2764 255 67 0 2794 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 22684

[startup+1.5006 s]
/proc/loadavg: 0.92 1.00 1.50 5/187 11419
/proc/meminfo: memFree=16904680/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=25972 CPUtime=1.49 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 6487 0 0 0 148 1 0 0 25 0 1 0 548246184 26595328 3586 33554432000 4194304 4465733 140735512779440 18446744073709551615 4270655 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 6493 3586 255 67 0 3616 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 25972

[startup+3.10031 s]
/proc/loadavg: 0.92 1.00 1.50 5/190 11425
/proc/meminfo: memFree=16869592/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=28440 CPUtime=3.09 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 8376 0 0 0 308 1 0 0 25 0 1 0 548246184 29122560 4112 33554432000 4194304 4465733 140735512779440 18446744073709551615 4267068 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 7110 4112 255 67 0 4233 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 28440

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

[startup+3.90117 s]
/proc/loadavg: 0.92 1.00 1.50 5/190 11425
/proc/meminfo: memFree=16854464/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=68168 CPUtime=3.88 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 10922 0 0 0 387 1 0 0 25 0 1 0 548246184 69804032 6611 33554432000 4194304 4465733 140735512779440 18446744073709551615 4335851 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 17042 6612 264 67 0 14165 0
Current children cumulated CPU time (s) 3.88
Current children cumulated vsize (KiB) 68168

[startup+4.30109 s]
/proc/loadavg: 1.17 1.05 1.51 5/190 11425
/proc/meminfo: memFree=16822992/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=74760 CPUtime=4.3 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 14712 0 0 0 428 2 0 0 25 0 1 0 548246184 76554240 8653 33554432000 4194304 4465733 140735512779440 18446744073709551615 4304656 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 18690 8653 279 67 0 15813 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 74760

[startup+4.40707 s]
/proc/loadavg: 1.17 1.05 1.51 5/190 11425
/proc/meminfo: memFree=16822992/32951124 swapFree=67111528/67111528
[pid=11408] ppid=11406 vsize=74760 CPUtime=4.4 cores=0,2
/proc/11408/stat : 11408 (SApperloT) R 11406 11408 10033 0 -1 4202496 14825 0 0 0 438 2 0 0 25 0 1 0 548246184 76554240 8766 33554432000 4194304 4465733 140735512779440 18446744073709551615 4356795 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/11408/statm: 18690 8766 279 67 0 15813 0
Current children cumulated CPU time (s) 4.4
Current children cumulated vsize (KiB) 74760

Child status: 20
Real time (s): 4.42609
CPU time (s): 4.42233
CPU user time (s): 4.39633
CPU system time (s): 0.025996
CPU usage (%): 99.9149
Max. virtual memory (cumulated for all children) (KiB): 75308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.39633
system time used= 0.025996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14850
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= 5
involuntary context switches= 12

runsolver used 0.006998 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node110 at 2011-04-23 19:35:56
IDJOB=3265393
IDBENCH=85572
IDSOLVER=1657
FILE ID=node110/3265393-1303580156
RUNJOBID= node110-1303580156-11382
PBS_JOBID= 13150302
Free space on /tmp= 71952 MiB

SOLVER NAME= SApperloT 2011-03-23
BENCH NAME= SAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
COMMAND LINE= SApperloT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3265393-1303580156/watcher-3265393-1303580156 -o /tmp/evaluation-result-3265393-1303580156/solver-3265393-1303580156 -C 2400 -W 1300 -M 7680  SApperloT HOME/instance-3265393-1303580156.cnf

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

MD5SUM BENCH= 384c65902b197ca2c64d2ee8a3c64089
RANDOM SEED=613601921

node110.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	: 5332.83
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	: 5332.83
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		: 2666.830
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	: 5332.76
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	: 5332.83
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		: 2666.830
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	: 5332.74
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      16965424 kB
Buffers:       2314756 kB
Cached:       13032280 kB
SwapCached:          0 kB
Active:        7973808 kB
Inactive:      7445596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16965424 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            5856 kB
Writeback:           0 kB
AnonPages:       71148 kB
Mapped:          14964 kB
Slab:           502376 kB
PageTables:       5148 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   219060 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= 71916 MiB
End job on node110 at 2011-04-23 19:36:01