Trace number 3160028

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
synit_sat 2011-03-03UNSAT 2.34764 2.34791

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v50-c1065-S1139883571-082.UNKNOWN.cnf
MD5SUM45cb1bf5c66e11f0109abc39c0f43234
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.132979
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses1065
Sum of the clauses size5325
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51065
Number of clauses of size over 50

Solver Data 

0.00/0.00	c start  0 total 0
0.00/0.00	c Find Units :          0
0.00/0.00	c Find Invs  :          0
0.00/0.00	c Find Ands  :          0 AvgFaninNum: nan
0.00/0.00	c Find Xors  :          0 AvgFaninNum: nan
0.00/0.00	c Find Ite   :          0
0.00/0.00	c UnDirect variable: 0
0.00/0.00	c UnDirect to Direct Gate: 0
0.00/0.00	c Forced Direct Gate: 0 Unuse unDirect Gate: 0
0.00/0.00	c Break Cycle : 0
0.00/0.00	c Total Root : 0 Undef Var: 50
0.00/0.00	c After covering, Total Root: 0 Leaf: 0
0.00/0.00	c Variable( cover/uncovered/unused ): 0 50 0
0.00/0.00	c Unit Clauses: 0
0.00/0.00	c Binary Clauses( cover/uncovered ): 0 0
0.00/0.00	c Clauses( cover/uncovered ): 0 1065
0.00/0.00	c Total Clauses( cover/uncovered ): 0 1065 0%
0.00/0.00	c Covered Ands: 0 Invs: 0 Xors: 0 Ites: 0
0.00/0.00	c Uncover Clauses avg size: 5 max size: 5
0.00/0.00	c Final circuit: i/l/o/s      50       0    1065      3604
0.00/0.00	c cover rate 0
0.00/0.00	c rocky end  0 total 0
0.00/0.01	c covering time  0.01 total 0.01
2.29/2.34	c solve time  2.32 total 2.33
2.29/2.34	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-3160028-1301744588/watcher-3160028-1301744588 -o /tmp/evaluation-result-3160028-1301744588/solver-3160028-1301744588 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3160028-1301744588.cnf 2042141528 

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: 2.54 3.06 3.47 4/189 4749
/proc/meminfo: memFree=22466548/32951124 swapFree=67111528/67111528
[pid=4749] ppid=4747 vsize=30688 CPUtime=0 cores=1,3
/proc/4749/stat : 4749 (synit_sat) R 4747 4749 3928 0 -1 4202496 2117 0 0 0 0 0 0 0 22 0 1 0 286061591 31424512 2051 33554432000 4194304 4947581 140735589546048 18446744073709551615 4283938 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/4749/statm: 7672 2052 376 184 0 2547 0

[startup+0.00867312 s]
/proc/loadavg: 2.54 3.06 3.47 4/189 4749
/proc/meminfo: memFree=22466548/32951124 swapFree=67111528/67111528
[pid=4749] ppid=4747 vsize=30684 CPUtime=0 cores=1,3
/proc/4749/stat : 4749 (synit_sat) R 4747 4749 3928 0 -1 4202496 2302 0 0 0 0 0 0 0 23 0 1 0 286061591 31420416 2236 33554432000 4194304 4947581 140735589546048 18446744073709551615 4242063 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/4749/statm: 7671 2241 389 184 0 2546 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 30684

[startup+0.100693 s]
/proc/loadavg: 2.54 3.06 3.47 4/189 4749
/proc/meminfo: memFree=22466548/32951124 swapFree=67111528/67111528
[pid=4749] ppid=4747 vsize=41980 CPUtime=0.09 cores=1,3
/proc/4749/stat : 4749 (synit_sat) R 4747 4749 3928 0 -1 4202496 2993 0 0 0 9 0 0 0 23 0 1 0 286061591 42987520 2925 33554432000 4194304 4947581 140735589546048 18446744073709551615 4398568 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/4749/statm: 10495 2925 457 184 0 5370 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 41980

[startup+0.300655 s]
/proc/loadavg: 2.54 3.06 3.47 4/189 4749
/proc/meminfo: memFree=22466548/32951124 swapFree=67111528/67111528
[pid=4749] ppid=4747 vsize=50376 CPUtime=0.29 cores=1,3
/proc/4749/stat : 4749 (synit_sat) R 4747 4749 3928 0 -1 4202496 3199 0 0 0 29 0 0 0 23 0 1 0 286061591 51585024 3131 33554432000 4194304 4947581 140735589546048 18446744073709551615 4399921 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/4749/statm: 12594 3131 457 184 0 7469 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 50376

[startup+0.700596 s]
/proc/loadavg: 2.54 3.06 3.47 4/189 4749
/proc/meminfo: memFree=22466548/32951124 swapFree=67111528/67111528
[pid=4749] ppid=4747 vsize=67424 CPUtime=0.69 cores=1,3
/proc/4749/stat : 4749 (synit_sat) R 4747 4749 3928 0 -1 4202496 3540 0 0 0 69 0 0 0 25 0 1 0 286061591 69042176 3472 33554432000 4194304 4947581 140735589546048 18446744073709551615 4399850 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/4749/statm: 16856 3472 457 184 0 11731 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 67424

[startup+1.50044 s]
/proc/loadavg: 2.54 3.06 3.47 5/190 4750
/proc/meminfo: memFree=22437776/32951124 swapFree=67111528/67111528
[pid=4749] ppid=4747 vsize=76028 CPUtime=1.49 cores=1,3
/proc/4749/stat : 4749 (synit_sat) R 4747 4749 3928 0 -1 4202496 4128 0 0 0 149 0 0 0 25 0 1 0 286061591 77852672 4059 33554432000 4194304 4947581 140735589546048 18446744073709551615 4400304 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/4749/statm: 19007 4059 466 184 0 13882 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 76028

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

[startup+1.90037 s]
/proc/loadavg: 2.54 3.06 3.47 5/190 4750
/proc/meminfo: memFree=22437776/32951124 swapFree=67111528/67111528
[pid=4749] ppid=4747 vsize=76028 CPUtime=1.89 cores=1,3
/proc/4749/stat : 4749 (synit_sat) R 4747 4749 3928 0 -1 4202496 4226 0 0 0 189 0 0 0 25 0 1 0 286061591 77852672 4157 33554432000 4194304 4947581 140735589546048 18446744073709551615 4399846 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/4749/statm: 19007 4157 466 184 0 13882 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 76028

[startup+2.3003 s]
/proc/loadavg: 2.54 3.06 3.47 5/190 4750
/proc/meminfo: memFree=22422648/32951124 swapFree=67111528/67111528
[pid=4749] ppid=4747 vsize=76028 CPUtime=2.29 cores=1,3
/proc/4749/stat : 4749 (synit_sat) R 4747 4749 3928 0 -1 4202496 4271 0 0 0 229 0 0 0 25 0 1 0 286061591 77852672 4202 33554432000 4194304 4947581 140735589546048 18446744073709551615 4400307 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/4749/statm: 19007 4202 466 184 0 13882 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 76028

Child status: 0
Real time (s): 2.34791
CPU time (s): 2.34764
CPU user time (s): 2.33964
CPU system time (s): 0.007998
CPU usage (%): 99.9885
Max. virtual memory (cumulated for all children) (KiB): 76028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.33964
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4291
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= 1

runsolver used 0.006998 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node101 at 2011-04-02 13:43:08
IDJOB=3160028
IDBENCH=83051
IDSOLVER=1571
FILE ID=node101/3160028-1301744588
RUNJOBID= node101-1301744588-4709
PBS_JOBID= 12840967
Free space on /tmp= 72332 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v50-c1065-S1139883571-082.UNKNOWN.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3160028-1301744588/watcher-3160028-1301744588 -o /tmp/evaluation-result-3160028-1301744588/solver-3160028-1301744588 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3160028-1301744588.cnf 2042141528

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

MD5SUM BENCH= 45cb1bf5c66e11f0109abc39c0f43234
RANDOM SEED=2042141528

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:      22466824 kB
Buffers:        329044 kB
Cached:        9806320 kB
SwapCached:          0 kB
Active:        6675476 kB
Inactive:      3562728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22466824 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            9576 kB
Writeback:          28 kB
AnonPages:      102176 kB
Mapped:          16680 kB
Slab:           183872 kB
PageTables:       4976 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   339588 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 13:43:11