Trace number 3159708

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 3.12252 3.12651

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v50-c1065-S433637520-048.UNKNOWN.cnf
MD5SUM63c27e328029fd4b3a3f3ab8a494055c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.147976
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      3627
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 total 0
3.08/3.12	c solve time  3.11 total 3.11
3.08/3.12	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-3159708-1301735669/watcher-3159708-1301735669 -o /tmp/evaluation-result-3159708-1301735669/solver-3159708-1301735669 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3159708-1301735669.cnf 1907326804 

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: 3.68 3.95 3.73 5/183 13706
/proc/meminfo: memFree=21686936/32951132 swapFree=67111528/67111528
[pid=13706] ppid=13703 vsize=29716 CPUtime=0 cores=5,7
/proc/13706/stat : 13706 (synit_sat) R 13703 13706 13345 0 -1 4202496 1689 0 0 0 0 0 0 0 18 0 1 0 285166566 30429184 1626 33554432000 4194304 4947581 140736528886080 18446744073709551615 4283938 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/13706/statm: 7429 1629 291 184 0 2304 0

[startup+0.016224 s]
/proc/loadavg: 3.68 3.95 3.73 5/183 13706
/proc/meminfo: memFree=21686936/32951132 swapFree=67111528/67111528
[pid=13706] ppid=13703 vsize=40956 CPUtime=0.01 cores=5,7
/proc/13706/stat : 13706 (synit_sat) R 13703 13706 13345 0 -1 4202496 2719 0 0 0 1 0 0 0 18 0 1 0 285166566 41938944 2651 33554432000 4194304 4947581 140736528886080 18446744073709551615 4399411 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/13706/statm: 10239 2651 430 184 0 5114 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 40956

[startup+0.104251 s]
/proc/loadavg: 3.68 3.95 3.73 5/183 13706
/proc/meminfo: memFree=21686936/32951132 swapFree=67111528/67111528
[pid=13706] ppid=13703 vsize=41980 CPUtime=0.09 cores=5,7
/proc/13706/stat : 13706 (synit_sat) R 13703 13706 13345 0 -1 4202496 3002 0 0 0 9 0 0 0 18 0 1 0 285166566 42987520 2934 33554432000 4194304 4947581 140736528886080 18446744073709551615 4400307 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/13706/statm: 10495 2934 457 184 0 5370 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 41980

[startup+0.300174 s]
/proc/loadavg: 3.68 3.95 3.73 5/183 13706
/proc/meminfo: memFree=21686936/32951132 swapFree=67111528/67111528
[pid=13706] ppid=13703 vsize=50380 CPUtime=0.29 cores=5,7
/proc/13706/stat : 13706 (synit_sat) R 13703 13706 13345 0 -1 4202496 3186 0 0 0 29 0 0 0 18 0 1 0 285166566 51589120 3118 33554432000 4194304 4947581 140736528886080 18446744073709551615 4398697 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/13706/statm: 12595 3119 457 184 0 7470 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 50380

[startup+0.700104 s]
/proc/loadavg: 3.68 3.95 3.73 5/183 13706
/proc/meminfo: memFree=21686936/32951132 swapFree=67111528/67111528
[pid=13706] ppid=13703 vsize=67440 CPUtime=0.69 cores=5,7
/proc/13706/stat : 13706 (synit_sat) R 13703 13706 13345 0 -1 4202496 3572 0 0 0 69 0 0 0 18 0 1 0 285166566 69058560 3504 33554432000 4194304 4947581 140736528886080 18446744073709551615 4400060 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/13706/statm: 16860 3504 457 184 0 11735 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 67440

[startup+1.50096 s]
/proc/loadavg: 3.68 3.95 3.73 5/188 13712
/proc/meminfo: memFree=21622200/32951132 swapFree=67111528/67111528
[pid=13706] ppid=13703 vsize=76092 CPUtime=1.49 cores=5,7
/proc/13706/stat : 13706 (synit_sat) R 13703 13706 13345 0 -1 4202496 4228 0 0 0 149 0 0 0 20 0 1 0 285166566 77918208 4159 33554432000 4194304 4947581 140736528886080 18446744073709551615 4398556 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/13706/statm: 19023 4159 466 184 0 13898 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 76092

[startup+3.1007 s]
/proc/loadavg: 3.68 3.95 3.73 5/188 13712
/proc/meminfo: memFree=21611536/32951132 swapFree=67111528/67111528
[pid=13706] ppid=13703 vsize=84800 CPUtime=3.08 cores=5,7
/proc/13706/stat : 13706 (synit_sat) R 13703 13706 13345 0 -1 4202496 5112 0 0 0 308 0 0 0 25 0 1 0 285166566 86835200 5043 33554432000 4194304 4947581 140736528886080 18446744073709551615 4343552 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/13706/statm: 21200 5043 467 184 0 16075 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 84800

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

Child status: 0
Real time (s): 3.12651
CPU time (s): 3.12252
CPU user time (s): 3.11253
CPU system time (s): 0.009998
CPU usage (%): 99.8727
Max. virtual memory (cumulated for all children) (KiB): 84800

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.11253
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5118
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= 27
involuntary context switches= 13

runsolver used 0.006998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node131 at 2011-04-02 11:14:29
IDJOB=3159708
IDBENCH=82731
IDSOLVER=1571
FILE ID=node131/3159708-1301735669
RUNJOBID= node131-1301733063-13366
PBS_JOBID= 12840938
Free space on /tmp= 71652 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v50-c1065-S433637520-048.UNKNOWN.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3159708-1301735669/watcher-3159708-1301735669 -o /tmp/evaluation-result-3159708-1301735669/solver-3159708-1301735669 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3159708-1301735669.cnf 1907326804

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

MD5SUM BENCH= 63c27e328029fd4b3a3f3ab8a494055c
RANDOM SEED=1907326804

node131.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	: 5332.75
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		: 2666.830
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	: 5332.83
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		: 2666.830
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	: 5332.75
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	: 5332.77
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	: 5332.75
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	: 5332.75
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		: 2666.830
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21686852 kB
Buffers:        347624 kB
Cached:       10566908 kB
SwapCached:          0 kB
Active:        6808660 kB
Inactive:      4194636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21686852 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7112 kB
Writeback:           0 kB
AnonPages:       87676 kB
Mapped:          16400 kB
Slab:           198820 kB
PageTables:       5340 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   319744 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71648 MiB
End job on node131 at 2011-04-02 11:14:33