Trace number 3376803

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 2011-05-12 (fixed)UNSAT 4.90825 4.90893

General information on the benchmark

NameSAT02/handmade/zhang-lintao/
xor-chain/x1_80.shuffled.cnf
MD5SUM53a7d1541ad9c0dde902ec3a505ae8fc
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.001998
Satisfiable
(Un)Satisfiability was proved
Number of variables238
Number of clauses634
Sum of the clauses size1900
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22
Number of clauses of size 3632
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: 238 #clause: 634
0.00/0.00	c Find Units :          0
0.00/0.00	c Find Invs  :          1
0.00/0.00	c Find Ands  :          0 AvgFaninNum: nan
0.00/0.00	c Find Xors  :        158 AvgFaninNum: 2
0.00/0.00	c Find Ite   :          0
0.00/0.00	c UnDirect variable: 238
0.00/0.00	c UnDirect to Direct Gate: 145
0.00/0.00	c Forced Direct Gate: 117 Unuse unDirect Gate: 123
0.00/0.00	c Break Cycle : 1
0.00/0.00	c Total Root : 8 Undef Var: 94
0.00/0.00	c After covering, Total Root: 10 Leaf: 89
0.00/0.00	c Variable( cover/uncovered/unused ): 233 5 0
0.00/0.00	c Unit Clauses: 0
0.00/0.00	c Binary Clauses( cover/uncovered ): 2 0
0.00/0.00	c Clauses( cover/uncovered ): 572 60
0.00/0.02	c Total Clauses( cover/uncovered ): 574 60 90.5363%
0.00/0.02	c Covered Ands: 0 Invs: 1 Xors: 143 Ites: 0
0.00/0.02	c Uncover Clauses avg size: 3 max size: 3
0.00/0.02	c Final circuit: i/l/o/s      94       0      60       549
0.00/0.02	c CnfToAig: Time: 0 s
0.00/0.02	c TmMap: Set choices finish.
0.00/0.02	c TmMap: Set big and: 60
0.00/0.02	c TmMap: Origin: 644 ClauseNum: 1647 --> New: 298 ClauseNum: 812
0.00/0.02	c TmMap: Time: 0
0.00/0.02	c Simulation --> TransNum: 812/812 Try to Add: #clause: 692 #xorclause: 0
0.00/0.02	c #var: 237 #clauses: 633 Solving... 
4.79/4.89	s UNSATISFIABLE
4.89/4.90	c CPU time: 4.9 s

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3376803-1305476057/watcher-3376803-1305476057 -o /tmp/evaluation-result-3376803-1305476057/solver-3376803-1305476057 -C 2400 -W 1300 -M 7680 qutersat_release HOME/instance-3376803-1305476057.cnf 807600277 

running on 2 cores: 1,3

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: 1.72 3.04 3.62 7/441 31649
/proc/meminfo: memFree=16667892/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=37484 CPUtime=0.01 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 3429 0 0 0 1 0 0 0 22 0 1 0 659203628 38383616 3365 33554432000 4194304 6014671 140733473947328 18446744073709551615 4244144 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 9371 3365 681 445 0 2916 0

[startup+0.0711129 s]
/proc/loadavg: 1.72 3.04 3.62 7/441 31649
/proc/meminfo: memFree=16667892/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=55668 CPUtime=0.06 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 3890 0 0 0 6 0 0 0 22 0 1 0 659203628 57004032 3826 33554432000 4194304 6014671 140733473947328 18446744073709551615 4379332 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 13917 3826 726 445 0 7462 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 55668

[startup+0.101106 s]
/proc/loadavg: 1.72 3.04 3.62 7/441 31649
/proc/meminfo: memFree=16667892/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=55668 CPUtime=0.09 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 3995 0 0 0 9 0 0 0 22 0 1 0 659203628 57004032 3931 33554432000 4194304 6014671 140733473947328 18446744073709551615 4424090 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 13917 3931 726 445 0 7462 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 55668

[startup+0.301073 s]
/proc/loadavg: 1.72 3.04 3.62 7/441 31649
/proc/meminfo: memFree=16667892/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=72920 CPUtime=0.29 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 4687 0 0 0 29 0 0 0 23 0 1 0 659203628 74670080 4623 33554432000 4194304 6014671 140733473947328 18446744073709551615 4369632 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 18230 4623 726 445 0 11775 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 72920

[startup+0.701002 s]
/proc/loadavg: 1.72 3.04 3.62 7/441 31649
/proc/meminfo: memFree=16667892/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=81668 CPUtime=0.69 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 5403 0 0 0 69 0 0 0 25 0 1 0 659203628 83628032 5339 33554432000 4194304 6014671 140733473947328 18446744073709551615 4424582 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 20417 5339 727 445 0 13962 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 81668

[startup+1.50087 s]
/proc/loadavg: 1.72 3.04 3.62 7/449 31660
/proc/meminfo: memFree=16599488/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=90652 CPUtime=1.49 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 6623 0 0 0 149 0 0 0 25 0 1 0 659203628 92827648 6559 33554432000 4194304 6014671 140733473947328 18446744073709551615 4422949 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 22663 6559 727 445 0 16208 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 90652

[startup+3.10058 s]
/proc/loadavg: 1.72 3.04 3.62 7/449 31660
/proc/meminfo: memFree=16572580/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=90652 CPUtime=3.09 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 8595 0 0 0 308 1 0 0 25 0 1 0 659203628 92827648 8531 33554432000 4194304 6014671 140733473947328 18446744073709551615 4533839 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 22663 8531 728 445 0 16208 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 90652

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

[startup+3.90044 s]
/proc/loadavg: 1.72 3.04 3.62 7/449 31660
/proc/meminfo: memFree=16558208/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=90652 CPUtime=3.89 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 9269 0 0 0 388 1 0 0 25 0 1 0 659203628 92827648 9204 33554432000 4194304 6014671 140733473947328 18446744073709551615 4511632 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 22663 9204 727 445 0 16208 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 90652

[startup+4.7003 s]
/proc/loadavg: 1.91 3.06 3.62 7/449 31660
/proc/meminfo: memFree=16548412/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=90652 CPUtime=4.69 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 9362 0 0 0 468 1 0 0 25 0 1 0 659203628 92827648 9297 33554432000 4194304 6014671 140733473947328 18446744073709551615 4369539 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 22663 9297 727 445 0 16208 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 90652

[startup+4.90027 s]
/proc/loadavg: 1.91 3.06 3.62 7/449 31660
/proc/meminfo: memFree=16548412/32951124 swapFree=67082160/67111528
[pid=31649] ppid=31647 vsize=90652 CPUtime=4.89 cores=1,3
/proc/31649/stat : 31649 (qutersat_releas) R 31647 31649 30415 0 -1 4202496 9424 0 0 0 488 1 0 0 25 0 1 0 659203628 92827648 9359 33554432000 4194304 6014671 140733473947328 18446744073709551615 4776599 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/31649/statm: 22663 9359 729 445 0 16208 0
Current children cumulated CPU time (s) 4.89
Current children cumulated vsize (KiB) 90652

Child status: 0
Real time (s): 4.90893
CPU time (s): 4.90825
CPU user time (s): 4.89425
CPU system time (s): 0.013997
CPU usage (%): 99.9862
Max. virtual memory (cumulated for all children) (KiB): 90652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.89426
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9428
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= 9
involuntary context switches= 9

runsolver used 0.013997 second user time and 0.06399 second system time

The end

Launcher Data 

Begin job on node136 at 2011-05-15 18:14:17
IDJOB=3376803
IDBENCH=87811
IDSOLVER=1856
FILE ID=node136/3376803-1305476057
RUNJOBID= node136-1305476056-31619
PBS_JOBID= 13325320
Free space on /tmp= 72996 MiB

SOLVER NAME= QuteRSat 2011-05-12 (fixed)
BENCH NAME= SAT02/handmade/zhang-lintao/xor-chain/x1_80.shuffled.cnf
COMMAND LINE= qutersat_release BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3376803-1305476057/watcher-3376803-1305476057 -o /tmp/evaluation-result-3376803-1305476057/solver-3376803-1305476057 -C 2400 -W 1300 -M 7680  qutersat_release HOME/instance-3376803-1305476057.cnf 807600277

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

MD5SUM BENCH= 53a7d1541ad9c0dde902ec3a505ae8fc
RANDOM SEED=807600277

node136.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		: 2666.809
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	: 5333.61
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.76
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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:     32951124 kB
MemFree:      16670388 kB
Buffers:        324204 kB
Cached:        5898928 kB
SwapCached:       2732 kB
Active:       11516956 kB
Inactive:      4402148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16670388 kB
SwapTotal:    67111528 kB
SwapFree:     67082160 kB
Dirty:            5576 kB
Writeback:           0 kB
AnonPages:     9694380 kB
Mapped:          35320 kB
Slab:           241004 kB
PageTables:      52836 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 122440624 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= 72992 MiB
End job on node136 at 2011-05-15 18:14:22