Trace number 3159989

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 6.91095 6.91099

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v250-c1065-S1397126856-076.UNKNOWN.cnf
MD5SUM867bcd516c43a4ea9c98fad365ff9a08
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.243962
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 

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: 250
0.00/0.00	c After covering, Total Root: 0 Leaf: 0
0.00/0.00	c Variable( cover/uncovered/unused ): 0 250 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: 3 max size: 3
0.00/0.00	c Final circuit: i/l/o/s     250       0    1065      2121
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
6.89/6.90	c solve time  6.89 total 6.89
6.89/6.90	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-3159989-1301738442/watcher-3159989-1301738442 -o /tmp/evaluation-result-3159989-1301738442/solver-3159989-1301738442 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3159989-1301738442.cnf 96948806 

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: 3.99 3.99 3.94 4/189 12208
/proc/meminfo: memFree=22194328/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=29716 CPUtime=0 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 2006 0 0 0 0 0 0 0 25 0 1 0 266259852 30429184 1943 33554432000 4194304 4947581 140733789389984 18446744073709551615 4308784 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/12208/statm: 7429 1949 320 184 0 2304 0

[startup+0.0931589 s]
/proc/loadavg: 3.99 3.99 3.94 4/189 12208
/proc/meminfo: memFree=22194328/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=40960 CPUtime=0.08 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 2720 0 0 0 8 0 0 0 25 0 1 0 266259852 41943040 2653 33554432000 4194304 4947581 140733789389984 18446744073709551615 4400304 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/12208/statm: 10240 2653 455 184 0 5115 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 40960

[startup+0.101161 s]
/proc/loadavg: 3.99 3.99 3.94 4/189 12208
/proc/meminfo: memFree=22194328/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=40960 CPUtime=0.09 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 2739 0 0 0 9 0 0 0 25 0 1 0 266259852 41943040 2672 33554432000 4194304 4947581 140733789389984 18446744073709551615 4399850 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/12208/statm: 10240 2672 455 184 0 5115 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 40960

[startup+0.30112 s]
/proc/loadavg: 3.99 3.99 3.94 4/189 12208
/proc/meminfo: memFree=22194328/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=49352 CPUtime=0.29 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 2916 0 0 0 29 0 0 0 25 0 1 0 266259852 50536448 2849 33554432000 4194304 4947581 140733789389984 18446744073709551615 270338080231 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/12208/statm: 12338 2849 455 184 0 7213 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 49352

[startup+0.701012 s]
/proc/loadavg: 3.99 3.99 3.94 4/189 12208
/proc/meminfo: memFree=22194328/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=66428 CPUtime=0.69 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 3300 0 0 0 69 0 0 0 25 0 1 0 266259852 68022272 3233 33554432000 4194304 4947581 140733789389984 18446744073709551615 4400023 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/12208/statm: 16607 3233 455 184 0 11482 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 66428

[startup+1.50088 s]
/proc/loadavg: 3.99 3.99 3.94 5/190 12209
/proc/meminfo: memFree=22181920/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=75060 CPUtime=1.49 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 4647 0 0 0 149 0 0 0 25 0 1 0 266259852 76861440 4580 33554432000 4194304 4947581 140733789389984 18446744073709551615 4399850 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/12208/statm: 18765 4580 464 184 0 13640 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 75060

[startup+3.10056 s]
/proc/loadavg: 3.99 3.99 3.94 5/190 12209
/proc/meminfo: memFree=22175472/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=92468 CPUtime=3.09 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 5745 0 0 0 309 0 0 0 25 0 1 0 266259852 94687232 5677 33554432000 4194304 4947581 140733789389984 18446744073709551615 4398566 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/12208/statm: 23117 5677 464 184 0 17992 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 92468

[startup+6.30093 s]
/proc/loadavg: 3.99 3.99 3.94 5/190 12209
/proc/meminfo: memFree=22168604/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=110152 CPUtime=6.29 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 6603 0 0 0 629 0 0 0 25 0 1 0 266259852 112795648 6535 33554432000 4194304 4947581 140733789389984 18446744073709551615 4399868 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/12208/statm: 27538 6535 464 184 0 22413 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 110152

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

[startup+6.70085 s]
/proc/loadavg: 3.99 3.99 3.94 5/190 12209
/proc/meminfo: memFree=22167984/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=110152 CPUtime=6.69 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 6623 0 0 0 669 0 0 0 25 0 1 0 266259852 112795648 6555 33554432000 4194304 4947581 140733789389984 18446744073709551615 4399936 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/12208/statm: 27538 6555 464 184 0 22413 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 110152

[startup+6.90079 s]
/proc/loadavg: 3.99 3.99 3.94 5/190 12209
/proc/meminfo: memFree=22167984/32951124 swapFree=67111528/67111528
[pid=12208] ppid=12206 vsize=110152 CPUtime=6.89 cores=0,2
/proc/12208/stat : 12208 (synit_sat) R 12206 12208 11490 0 -1 4202496 6652 0 0 0 689 0 0 0 25 0 1 0 266259852 112795648 6584 33554432000 4194304 4947581 140733789389984 18446744073709551615 4399835 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/12208/statm: 27538 6584 464 184 0 22413 0
Current children cumulated CPU time (s) 6.89
Current children cumulated vsize (KiB) 110152

Child status: 0
Real time (s): 6.91099
CPU time (s): 6.91095
CPU user time (s): 6.89995
CPU system time (s): 0.010998
CPU usage (%): 99.9995
Max. virtual memory (cumulated for all children) (KiB): 110152

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.89995
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6659
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= 10
involuntary context switches= 7

runsolver used 0.012998 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node143 at 2011-04-02 12:00:42
IDJOB=3159989
IDBENCH=83012
IDSOLVER=1571
FILE ID=node143/3159989-1301738442
RUNJOBID= node143-1301733065-11508
PBS_JOBID= 12840926
Free space on /tmp= 72036 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v250-c1065-S1397126856-076.UNKNOWN.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3159989-1301738442/watcher-3159989-1301738442 -o /tmp/evaluation-result-3159989-1301738442/solver-3159989-1301738442 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3159989-1301738442.cnf 96948806

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

MD5SUM BENCH= 867bcd516c43a4ea9c98fad365ff9a08
RANDOM SEED=96948806

node143.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5226.15
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		: 2666.846
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	: 5332.74
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		: 2666.846
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		: 2666.846
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	: 5332.75
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		: 2666.846
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		: 2666.846
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		: 2666.846
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:      22194484 kB
Buffers:        350004 kB
Cached:        9789464 kB
SwapCached:          0 kB
Active:        7246196 kB
Inactive:      3251496 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22194484 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2352 kB
Writeback:           0 kB
AnonPages:      358516 kB
Mapped:          17304 kB
Slab:           194768 kB
PageTables:       5944 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   617780 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= 72032 MiB
End job on node143 at 2011-04-02 12:00:49