Trace number 3159994

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 6.39903 6.39904

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v250-c1065-S266251785-083.UNKNOWN.cnf
MD5SUMbf4aded14c98dde34297ecd557ad63a4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.242963
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      2122
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
6.29/6.39	c solve time  6.38 total 6.38
6.29/6.39	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-3159994-1301738631/watcher-3159994-1301738631 -o /tmp/evaluation-result-3159994-1301738631/solver-3159994-1301738631 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3159994-1301738631.cnf 96948806 

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: 4.01 4.02 3.94 4/189 15628
/proc/meminfo: memFree=19646644/32951124 swapFree=67111528/67111528
[pid=15628] ppid=15626 vsize=29716 CPUtime=0 cores=4,6
/proc/15628/stat : 15628 (synit_sat) R 15626 15628 14924 0 -1 4202496 2039 0 0 0 0 0 0 0 25 0 1 0 266278402 30429184 1974 33554432000 4194304 4947581 140736012512176 18446744073709551615 254273443216 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15628/statm: 7429 1974 324 184 0 2304 0

[startup+0.032123 s]
/proc/loadavg: 4.01 4.02 3.94 4/189 15628
/proc/meminfo: memFree=19646644/32951124 swapFree=67111528/67111528
[pid=15628] ppid=15626 vsize=39932 CPUtime=0.02 cores=4,6
/proc/15628/stat : 15628 (synit_sat) R 15626 15628 14924 0 -1 4202496 2635 0 0 0 2 0 0 0 18 0 1 0 266278402 40890368 2569 33554432000 4194304 4947581 140736012512176 18446744073709551615 4352463 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/15628/statm: 9983 2569 453 184 0 4858 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 39932

[startup+0.101099 s]
/proc/loadavg: 4.01 4.02 3.94 4/189 15628
/proc/meminfo: memFree=19646644/32951124 swapFree=67111528/67111528
[pid=15628] ppid=15626 vsize=40956 CPUtime=0.09 cores=4,6
/proc/15628/stat : 15628 (synit_sat) R 15626 15628 14924 0 -1 4202496 2742 0 0 0 9 0 0 0 18 0 1 0 266278402 41938944 2676 33554432000 4194304 4947581 140736012512176 18446744073709551615 4399543 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/15628/statm: 10239 2676 455 184 0 5114 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 40956

[startup+0.30109 s]
/proc/loadavg: 4.01 4.02 3.94 4/189 15628
/proc/meminfo: memFree=19646644/32951124 swapFree=67111528/67111528
[pid=15628] ppid=15626 vsize=49336 CPUtime=0.29 cores=4,6
/proc/15628/stat : 15628 (synit_sat) R 15626 15628 14924 0 -1 4202496 2961 0 0 0 29 0 0 0 18 0 1 0 266278402 50520064 2895 33554432000 4194304 4947581 140736012512176 18446744073709551615 4343411 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/15628/statm: 12334 2895 455 184 0 7209 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 49336

[startup+0.701016 s]
/proc/loadavg: 4.01 4.02 3.94 4/189 15628
/proc/meminfo: memFree=19646644/32951124 swapFree=67111528/67111528
[pid=15628] ppid=15626 vsize=66404 CPUtime=0.69 cores=4,6
/proc/15628/stat : 15628 (synit_sat) R 15626 15628 14924 0 -1 4202496 3327 0 0 0 69 0 0 0 18 0 1 0 266278402 67997696 3261 33554432000 4194304 4947581 140736012512176 18446744073709551615 4400307 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/15628/statm: 16601 3261 455 184 0 11476 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 66404

[startup+1.50088 s]
/proc/loadavg: 4.01 4.02 3.94 5/190 15629
/proc/meminfo: memFree=19633984/32951124 swapFree=67111528/67111528
[pid=15628] ppid=15626 vsize=83716 CPUtime=1.49 cores=4,6
/proc/15628/stat : 15628 (synit_sat) R 15626 15628 14924 0 -1 4202496 4809 0 0 0 149 0 0 0 20 0 1 0 266278402 85725184 4743 33554432000 4194304 4947581 140736012512176 18446744073709551615 4399979 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/15628/statm: 20929 4743 464 184 0 15804 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 83716

[startup+3.1006 s]
/proc/loadavg: 4.01 4.02 3.94 5/190 15629
/proc/meminfo: memFree=19625552/32951124 swapFree=67111528/67111528
[pid=15628] ppid=15626 vsize=92444 CPUtime=3.09 cores=4,6
/proc/15628/stat : 15628 (synit_sat) R 15626 15628 14924 0 -1 4202496 5850 0 0 0 309 0 0 0 25 0 1 0 266278402 94662656 5784 33554432000 4194304 4947581 140736012512176 18446744073709551615 4399380 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/15628/statm: 23111 5784 464 184 0 17986 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 92444

[startup+6.30101 s]
/proc/loadavg: 4.01 4.02 3.94 5/190 15629
/proc/meminfo: memFree=19621420/32951124 swapFree=67111528/67111528
[pid=15628] ppid=15626 vsize=92444 CPUtime=6.29 cores=4,6
/proc/15628/stat : 15628 (synit_sat) R 15626 15628 14924 0 -1 4202496 6334 0 0 0 629 0 0 0 25 0 1 0 266278402 94662656 6268 33554432000 4194304 4947581 140736012512176 18446744073709551615 4352463 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/15628/statm: 23111 6268 464 184 0 17986 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 92444

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

Child status: 0
Real time (s): 6.39904
CPU time (s): 6.39903
CPU user time (s): 6.38803
CPU system time (s): 0.010998
CPU usage (%): 99.9998
Max. virtual memory (cumulated for all children) (KiB): 92444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.38803
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= 6340
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= 11
involuntary context switches= 6

runsolver used 0.012998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-02 12:03:51
IDJOB=3159994
IDBENCH=83017
IDSOLVER=1571
FILE ID=node140/3159994-1301738631
RUNJOBID= node140-1301733065-14943
PBS_JOBID= 12840929
Free space on /tmp= 71524 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v250-c1065-S266251785-083.UNKNOWN.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3159994-1301738631/watcher-3159994-1301738631 -o /tmp/evaluation-result-3159994-1301738631/solver-3159994-1301738631 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3159994-1301738631.cnf 96948806

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

MD5SUM BENCH= bf4aded14c98dde34297ecd557ad63a4
RANDOM SEED=96948806

node140.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	: 5226.14
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	: 5332.75
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	: 5332.77
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	: 5332.75
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		: 2666.833
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	: 5332.74
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	: 5332.75
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		: 2666.833
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:      19646800 kB
Buffers:        360688 kB
Cached:       12162200 kB
SwapCached:          0 kB
Active:        7895396 kB
Inactive:      5131200 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19646800 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2372 kB
Writeback:           0 kB
AnonPages:      504208 kB
Mapped:          17236 kB
Slab:           212964 kB
PageTables:       6272 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   731208 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= 71520 MiB
End job on node140 at 2011-04-02 12:03:57