Trace number 3159843

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 2.70959 2.71059

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v50-c1065-S1491756361-004.UNKNOWN.cnf
MD5SUMc37bd14f07dfd525075f8b6d522a84a4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.171973
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      3596
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
2.69/2.70	c solve time  2.69 total 2.69
2.69/2.70	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-3159843-1301736974/watcher-3159843-1301736974 -o /tmp/evaluation-result-3159843-1301736974/solver-3159843-1301736974 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3159843-1301736974.cnf 833477738 

running on 2 cores: 4,6

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: 4.10 4.04 3.93 3/189 18507
/proc/meminfo: memFree=20556980/32951124 swapFree=67111528/67111528
[pid=18507] ppid=18505 vsize=30684 CPUtime=0 cores=4,6
/proc/18507/stat : 18507 (synit_sat) R 18505 18507 18049 0 -1 4202496 2129 0 0 0 0 0 0 0 25 0 1 0 285295572 31420416 2063 33554432000 4194304 4947581 140736769567488 18446744073709551615 4283938 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/18507/statm: 7671 2064 376 184 0 2546 0

[startup+0.037427 s]
/proc/loadavg: 4.10 4.04 3.93 3/189 18507
/proc/meminfo: memFree=20556980/32951124 swapFree=67111528/67111528
[pid=18507] ppid=18505 vsize=41976 CPUtime=0.03 cores=4,6
/proc/18507/stat : 18507 (synit_sat) R 18505 18507 18049 0 -1 4202496 2933 0 0 0 3 0 0 0 25 0 1 0 285295572 42983424 2865 33554432000 4194304 4947581 140736769567488 18446744073709551615 4351031 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/18507/statm: 10494 2865 456 184 0 5369 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 41976

[startup+0.100443 s]
/proc/loadavg: 4.10 4.04 3.93 3/189 18507
/proc/meminfo: memFree=20556980/32951124 swapFree=67111528/67111528
[pid=18507] ppid=18505 vsize=41976 CPUtime=0.09 cores=4,6
/proc/18507/stat : 18507 (synit_sat) R 18505 18507 18049 0 -1 4202496 3011 0 0 0 9 0 0 0 25 0 1 0 285295572 42983424 2943 33554432000 4194304 4947581 140736769567488 18446744073709551615 4399472 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/18507/statm: 10494 2943 458 184 0 5369 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 41976

[startup+0.300361 s]
/proc/loadavg: 4.10 4.04 3.93 3/189 18507
/proc/meminfo: memFree=20556980/32951124 swapFree=67111528/67111528
[pid=18507] ppid=18505 vsize=50376 CPUtime=0.29 cores=4,6
/proc/18507/stat : 18507 (synit_sat) R 18505 18507 18049 0 -1 4202496 3189 0 0 0 29 0 0 0 25 0 1 0 285295572 51585024 3121 33554432000 4194304 4947581 140736769567488 18446744073709551615 4401200 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/18507/statm: 12594 3121 458 184 0 7469 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 50376

[startup+0.700292 s]
/proc/loadavg: 4.10 4.04 3.93 3/189 18507
/proc/meminfo: memFree=20556980/32951124 swapFree=67111528/67111528
[pid=18507] ppid=18505 vsize=67444 CPUtime=0.69 cores=4,6
/proc/18507/stat : 18507 (synit_sat) R 18505 18507 18049 0 -1 4202496 3534 0 0 0 69 0 0 0 25 0 1 0 285295572 69062656 3466 33554432000 4194304 4947581 140736769567488 18446744073709551615 4399959 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/18507/statm: 16861 3466 458 184 0 11736 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 67444

[startup+1.50018 s]
/proc/loadavg: 4.10 4.04 3.93 4/192 18535
/proc/meminfo: memFree=20530964/32951124 swapFree=67111528/67111528
[pid=18507] ppid=18505 vsize=76096 CPUtime=1.49 cores=4,6
/proc/18507/stat : 18507 (synit_sat) R 18505 18507 18049 0 -1 4202496 4201 0 0 0 149 0 0 0 25 0 1 0 285295572 77922304 4132 33554432000 4194304 4947581 140736769567488 18446744073709551615 4400592 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/18507/statm: 19024 4132 467 184 0 13899 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 76096

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

[startup+2.30101 s]
/proc/loadavg: 4.02 4.03 3.93 5/194 18562
/proc/meminfo: memFree=20484804/32951124 swapFree=67111528/67111528
[pid=18507] ppid=18505 vsize=84696 CPUtime=2.29 cores=4,6
/proc/18507/stat : 18507 (synit_sat) R 18505 18507 18049 0 -1 4202496 4465 0 0 0 229 0 0 0 25 0 1 0 285295572 86728704 4396 33554432000 4194304 4947581 140736769567488 18446744073709551615 4611956 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/18507/statm: 21174 4396 467 184 0 16049 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 84696

[startup+2.70094 s]
/proc/loadavg: 4.02 4.03 3.93 5/194 18562
/proc/meminfo: memFree=20484804/32951124 swapFree=67111528/67111528
[pid=18507] ppid=18505 vsize=84696 CPUtime=2.69 cores=4,6
/proc/18507/stat : 18507 (synit_sat) R 18505 18507 18049 0 -1 4202496 4539 0 0 0 269 0 0 0 25 0 1 0 285295572 86728704 4470 33554432000 4194304 4947581 140736769567488 18446744073709551615 4398688 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/18507/statm: 21174 4470 467 184 0 16049 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 84696

Child status: 0
Real time (s): 2.71059
CPU time (s): 2.70959
CPU user time (s): 2.70059
CPU system time (s): 0.008998
CPU usage (%): 99.963
Max. virtual memory (cumulated for all children) (KiB): 84696

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.70059
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4545
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= 21

runsolver used 0.006998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-02 11:36:14
IDJOB=3159843
IDBENCH=82866
IDSOLVER=1571
FILE ID=node132/3159843-1301736974
RUNJOBID= node132-1301733065-18068
PBS_JOBID= 12840937
Free space on /tmp= 72380 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v50-c1065-S1491756361-004.UNKNOWN.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3159843-1301736974/watcher-3159843-1301736974 -o /tmp/evaluation-result-3159843-1301736974/solver-3159843-1301736974 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3159843-1301736974.cnf 833477738

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

MD5SUM BENCH= c37bd14f07dfd525075f8b6d522a84a4
RANDOM SEED=833477738

node132.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		: 2666.833
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		: 2666.833
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	: 5332.74
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		: 2666.833
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	: 5332.76
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		: 2666.833
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		: 2666.833
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		: 2666.833
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	: 5332.67
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		: 2666.833
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	: 5332.82
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		: 2666.833
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20557004 kB
Buffers:        354708 kB
Cached:       11709384 kB
SwapCached:          0 kB
Active:        7306348 kB
Inactive:      4835392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20557004 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            4712 kB
Writeback:           0 kB
AnonPages:       78248 kB
Mapped:          15936 kB
Slab:           190500 kB
PageTables:       5512 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   294456 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= 72380 MiB
End job on node132 at 2011-04-02 11:36:17