Trace number 3188897

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
QuteRSat 2011-03-01UNSAT 1.84372 1.84469

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v250-c1065-S1822479556-014.UNKNOWN.cnf
MD5SUM0c8d0957d77826a7c24d4ded86c5d721
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.135978
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 Set FPU double precision.
0.00/0.00	c Parse Cnf success: #var: 250 #clause: 1065
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      2119
0.00/0.00	c CnfToAig: Time: 0 s
0.00/0.02	c TmMap: Set choices finish.
0.00/0.02	c TmMap: Set big and: 1065
0.00/0.02	c TmMap: Origin: 2370 ClauseNum: 6357 --> New: 1316 ClauseNum: 4260
0.00/0.02	c TmMap: Time: 0
0.00/0.02	c Try to Add: #clause: 2130 #xorclause: 0
0.00/0.02	c #var: 250 #clauses: 1066 Solving... 
1.79/1.83	s UNSATISFIABLE
1.79/1.84	c CPU time: 1.83 s

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-3188897-1302286280/watcher-3188897-1302286280 -o /tmp/evaluation-result-3188897-1302286280/solver-3188897-1302286280 -C 2400 -W 1300 -M 7680 qutersat_release HOME/instance-3188897-1302286280.cnf 1666672185 

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: 3.96 4.00 4.00 4/189 3559
/proc/meminfo: memFree=13995992/32950928 swapFree=67111528/67111528
[pid=3559] ppid=3557 vsize=32364 CPUtime=0 cores=4,6
/proc/3559/stat : 3559 (qutersat_releas) R 3557 3559 2763 0 -1 4202496 1828 0 0 0 0 0 0 0 25 0 1 0 340226841 33140736 1760 33554432000 4194304 6016207 140733647248432 18446744073709551615 4335448 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/3559/statm: 8091 1760 400 445 0 1635 0

[startup+0.00889709 s]
/proc/loadavg: 3.96 4.00 4.00 4/189 3559
/proc/meminfo: memFree=13995992/32950928 swapFree=67111528/67111528
[pid=3559] ppid=3557 vsize=33388 CPUtime=0 cores=4,6
/proc/3559/stat : 3559 (qutersat_releas) R 3557 3559 2763 0 -1 4202496 1962 0 0 0 0 0 0 0 25 0 1 0 340226841 34189312 1894 33554432000 4194304 6016207 140733647248432 18446744073709551615 4779602 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/3559/statm: 8347 1898 429 445 0 1891 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 33388

[startup+0.100929 s]
/proc/loadavg: 3.96 4.00 4.00 4/189 3559
/proc/meminfo: memFree=13995992/32950928 swapFree=67111528/67111528
[pid=3559] ppid=3557 vsize=46712 CPUtime=0.09 cores=4,6
/proc/3559/stat : 3559 (qutersat_releas) R 3557 3559 2763 0 -1 4202496 3720 0 0 0 9 0 0 0 25 0 1 0 340226841 47833088 3652 33554432000 4194304 6016207 140733647248432 18446744073709551615 4425984 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/3559/statm: 11678 3652 722 445 0 5222 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 46712

[startup+0.300895 s]
/proc/loadavg: 3.96 4.00 4.00 4/189 3559
/proc/meminfo: memFree=13995992/32950928 swapFree=67111528/67111528
[pid=3559] ppid=3557 vsize=55092 CPUtime=0.29 cores=4,6
/proc/3559/stat : 3559 (qutersat_releas) R 3557 3559 2763 0 -1 4202496 3925 0 0 0 29 0 0 0 25 0 1 0 340226841 56414208 3857 33554432000 4194304 6016207 140733647248432 18446744073709551615 4425019 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/3559/statm: 13773 3857 722 445 0 7317 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 55092

[startup+0.700824 s]
/proc/loadavg: 3.96 4.00 4.00 4/189 3559
/proc/meminfo: memFree=13995992/32950928 swapFree=67111528/67111528
[pid=3559] ppid=3557 vsize=72128 CPUtime=0.69 cores=4,6
/proc/3559/stat : 3559 (qutersat_releas) R 3557 3559 2763 0 -1 4202496 4288 0 0 0 69 0 0 0 25 0 1 0 340226841 73859072 4220 33554432000 4194304 6016207 140733647248432 18446744073709551615 4425630 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/3559/statm: 18032 4220 722 445 0 11576 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 72128

[startup+1.50068 s]
/proc/loadavg: 3.96 4.00 4.00 5/190 3560
/proc/meminfo: memFree=13980616/32950928 swapFree=67111528/67111528
[pid=3559] ppid=3557 vsize=80732 CPUtime=1.49 cores=4,6
/proc/3559/stat : 3559 (qutersat_releas) R 3557 3559 2763 0 -1 4202496 5551 0 0 0 149 0 0 0 25 0 1 0 340226841 82669568 5481 33554432000 4194304 6016207 140733647248432 18446744073709551615 4371148 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/3559/statm: 20183 5481 729 445 0 13727 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 80732

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

[startup+1.70065 s]
/proc/loadavg: 3.96 4.00 4.00 5/190 3560
/proc/meminfo: memFree=13980616/32950928 swapFree=67111528/67111528
[pid=3559] ppid=3557 vsize=89392 CPUtime=1.69 cores=4,6
/proc/3559/stat : 3559 (qutersat_releas) R 3557 3559 2763 0 -1 4202496 5706 0 0 0 169 0 0 0 25 0 1 0 340226841 91537408 5636 33554432000 4194304 6016207 140733647248432 18446744073709551615 4425440 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/3559/statm: 22348 5636 729 445 0 15892 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 89392

[startup+1.80057 s]
/proc/loadavg: 3.96 4.00 4.00 5/190 3560
/proc/meminfo: memFree=13980616/32950928 swapFree=67111528/67111528
[pid=3559] ppid=3557 vsize=89392 CPUtime=1.79 cores=4,6
/proc/3559/stat : 3559 (qutersat_releas) R 3557 3559 2763 0 -1 4202496 5728 0 0 0 179 0 0 0 25 0 1 0 340226841 91537408 5658 33554432000 4194304 6016207 140733647248432 18446744073709551615 4425151 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/3559/statm: 22348 5658 729 445 0 15892 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 89392

Child status: 0
Real time (s): 1.84469
CPU time (s): 1.84372
CPU user time (s): 1.83772
CPU system time (s): 0.005999
CPU usage (%): 99.9473
Max. virtual memory (cumulated for all children) (KiB): 89392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.83772
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5741
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= 2

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node122 at 2011-04-08 20:11:20
IDJOB=3188897
IDBENCH=83028
IDSOLVER=1607
FILE ID=node122/3188897-1302286280
RUNJOBID= node122-1302280600-2784
PBS_JOBID= 12919079
Free space on /tmp= 71336 MiB

SOLVER NAME= QuteRSat 2011-03-01
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v250-c1065-S1822479556-014.UNKNOWN.cnf
COMMAND LINE= qutersat_release BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3188897-1302286280/watcher-3188897-1302286280 -o /tmp/evaluation-result-3188897-1302286280/solver-3188897-1302286280 -C 2400 -W 1300 -M 7680  qutersat_release HOME/instance-3188897-1302286280.cnf 1666672185

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

MD5SUM BENCH= 0c8d0957d77826a7c24d4ded86c5d721
RANDOM SEED=1666672185

node122.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		: 2666.820
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	: 5333.64
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.97
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      13996148 kB
Buffers:        604716 kB
Cached:       17502944 kB
SwapCached:          0 kB
Active:        9888136 kB
Inactive:      8647448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      13996148 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1620 kB
Writeback:           0 kB
AnonPages:      428400 kB
Mapped:          20316 kB
Slab:           354500 kB
PageTables:       6136 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   662904 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= 71336 MiB
End job on node122 at 2011-04-08 20:11:22