Trace number 3170587

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
RestartSAT B95UNSAT 4.51631 4.52017

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v250-c1065-S671776549-007.UNKNOWN.cnf
MD5SUM4d03caf8d8c1d1c9a2cc6f8b0ebca92b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.285956
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 

4.49/4.51	c WARNING: for repeatability, setting FPU to use double precision
4.49/4.51	s UNSATISFIABLE

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-3170587-1302825663/watcher-3170587-1302825663 -o /tmp/evaluation-result-3170587-1302825663/solver-3170587-1302825663 -C 2400 -W 1300 -M 7680 HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3170587-1302825663.cnf 

running on 2 cores: 5,7

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: 3.94 4.03 4.00 4/190 30850
/proc/meminfo: memFree=22626504/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=19120 CPUtime=0 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 367 0 0 0 0 0 0 0 25 0 1 0 394164524 19578880 307 33554432000 4194304 4291949 140734276068464 18446744073709551615 4212272 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 4780 307 231 24 0 1414 0

[startup+0.034693 s]
/proc/loadavg: 3.94 4.03 4.00 4/190 30850
/proc/meminfo: memFree=22626504/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=14916 CPUtime=0.03 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 424 0 0 0 3 0 0 0 25 0 1 0 394164524 15273984 353 33554432000 4194304 4291949 140734276068464 18446744073709551615 4250455 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 3729 353 248 24 0 363 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 14916

[startup+0.100684 s]
/proc/loadavg: 3.94 4.03 4.00 4/190 30850
/proc/meminfo: memFree=22626504/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=15084 CPUtime=0.09 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 460 0 0 0 9 0 0 0 25 0 1 0 394164524 15446016 385 33554432000 4194304 4291949 140734276068464 18446744073709551615 4255799 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 3771 385 248 24 0 405 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15084

[startup+0.300644 s]
/proc/loadavg: 3.94 4.03 4.00 4/190 30850
/proc/meminfo: memFree=22626504/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=15084 CPUtime=0.29 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 467 0 0 0 29 0 0 0 25 0 1 0 394164524 15446016 392 33554432000 4194304 4291949 140734276068464 18446744073709551615 4255673 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 3771 392 248 24 0 405 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15084

[startup+0.700582 s]
/proc/loadavg: 3.94 4.03 4.00 4/190 30850
/proc/meminfo: memFree=22626504/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=15240 CPUtime=0.69 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 494 0 0 0 69 0 0 0 25 0 1 0 394164524 15605760 416 33554432000 4194304 4291949 140734276068464 18446744073709551615 4255840 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 3810 416 248 24 0 444 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15240

[startup+1.50043 s]
/proc/loadavg: 3.94 4.03 4.00 5/194 30866
/proc/meminfo: memFree=22622456/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=15508 CPUtime=1.49 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 562 0 0 0 149 0 0 0 25 0 1 0 394164524 15880192 479 33554432000 4194304 4291949 140734276068464 18446744073709551615 4262909 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 3877 479 248 24 0 511 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15508

[startup+3.10013 s]
/proc/loadavg: 3.94 4.03 4.00 5/194 30866
/proc/meminfo: memFree=22619976/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=15668 CPUtime=3.09 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 605 0 0 0 309 0 0 0 25 0 1 0 394164524 16044032 522 33554432000 4194304 4291949 140734276068464 18446744073709551615 4276198 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 3917 522 248 24 0 551 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 15668

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

[startup+3.90099 s]
/proc/loadavg: 3.95 4.03 4.00 5/194 30866
/proc/meminfo: memFree=22618860/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=15668 CPUtime=3.89 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 624 0 0 0 389 0 0 0 25 0 1 0 394164524 16044032 538 33554432000 4194304 4291949 140734276068464 18446744073709551615 4262925 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 3917 538 248 24 0 551 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 15668

[startup+4.30093 s]
/proc/loadavg: 3.95 4.03 4.00 5/194 30866
/proc/meminfo: memFree=22618240/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=15668 CPUtime=4.3 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 625 0 0 0 430 0 0 0 25 0 1 0 394164524 16044032 539 33554432000 4194304 4291949 140734276068464 18446744073709551615 4251271 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 3917 539 248 24 0 551 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 15668

[startup+4.50088 s]
/proc/loadavg: 3.95 4.03 4.00 5/194 30866
/proc/meminfo: memFree=22618240/32951124 swapFree=67111416/67111528
[pid=30850] ppid=30848 vsize=15668 CPUtime=4.49 cores=5,7
/proc/30850/stat : 30850 (RestartSAT) R 30848 30850 30171 0 -1 4202496 630 0 0 0 449 0 0 0 25 0 1 0 394164524 16044032 544 33554432000 4194304 4291949 140734276068464 18446744073709551615 4255907 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/30850/statm: 3917 544 248 24 0 551 0
Current children cumulated CPU time (s) 4.49
Current children cumulated vsize (KiB) 15668

Child status: 20
Real time (s): 4.52017
CPU time (s): 4.51631
CPU user time (s): 4.51631
CPU system time (s): 0
CPU usage (%): 99.9146
Max. virtual memory (cumulated for all children) (KiB): 15668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.51631
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 635
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= 4
involuntary context switches= 12

runsolver used 0.005999 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node134 at 2011-04-15 02:01:03
IDJOB=3170587
IDBENCH=83005
IDSOLVER=1580
FILE ID=node134/3170587-1302825663
RUNJOBID= node134-1302820454-30192
PBS_JOBID= 13006677
Free space on /tmp= 70920 MiB

SOLVER NAME= RestartSAT B95
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v250-c1065-S671776549-007.UNKNOWN.cnf
COMMAND LINE= HOME/RestartSAT -rfirst=1 -var-decay=0.95 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3170587-1302825663/watcher-3170587-1302825663 -o /tmp/evaluation-result-3170587-1302825663/solver-3170587-1302825663 -C 2400 -W 1300 -M 7680  HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3170587-1302825663.cnf

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

MD5SUM BENCH= 4d03caf8d8c1d1c9a2cc6f8b0ebca92b
RANDOM SEED=2055531840

node134.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		: 2666.831
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		: 2666.831
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	: 5332.67
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		: 2666.831
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	: 5332.83
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		: 2666.831
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	: 7186.06
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		: 2666.831
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	: 5332.80
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		: 2666.831
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		: 2666.831
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		: 2666.831
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	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      22626644 kB
Buffers:        626908 kB
Cached:        9253176 kB
SwapCached:        108 kB
Active:        4578064 kB
Inactive:      5374908 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22626644 kB
SwapTotal:    67111528 kB
SwapFree:     67111416 kB
Dirty:             900 kB
Writeback:           0 kB
AnonPages:       72420 kB
Mapped:          15352 kB
Slab:           307904 kB
PageTables:       5324 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   241620 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70920 MiB
End job on node134 at 2011-04-15 02:01:08