Trace number 3265376

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
priss 1.0UNSAT 2.85156 0.800165

General information on the benchmark

NameSAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/
grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
MD5SUM384c65902b197ca2c64d2ee8a3c64089
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.374942
Satisfiable
(Un)Satisfiability was proved
Number of variables62750
Number of clauses124752
Sum of the clauses size498502
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2250
Number of clauses of size 30
Number of clauses of size 4124500
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c *****************************************************
0.00/0.00	c *        riss, Copyright 2009 Norbert Manthey       *
0.00/0.00	c *   This program may be redistributed or modified   *
0.00/0.00	c * under the terms of the GNU General Public License *
0.00/0.00	c *****************************************************
0.00/0.00	c process id: 3681
0.00/0.04	c parsetime: 44665us
0.00/0.04	c parsed 124752 clauses with 62750 variables
0.00/0.05	c NW started thread 0 successfully (1110329664)
0.00/0.06	c NW started thread 1 successfully (1097255232)
0.00/0.07	c NW started thread 2 successfully (1120819520)
0.00/0.08	c NW started thread 3 successfully (1085630784)
0.00/0.67	c unsat during subsumption (size 0)
0.00/0.67	c preprocessor returned 62750 variables
0.00/0.67	c preprocessing returned UNSAT
0.00/0.67	c PP set 5 variables
0.00/0.67	c pp time: 603407us (0s)
0.00/0.67	c solvetime: 1us (0s)
0.00/0.68	c unsat during subsumption (size 0)
0.00/0.68	c preprocessor returned 62750 variables
0.00/0.68	c preprocessing returned UNSAT
0.00/0.68	c PP set 5 variables
0.00/0.68	c pp time: 602781us (0s)
0.00/0.68	c unsat during subsumption (size 0)
0.00/0.68	c preprocessor returned 62750 variables
0.00/0.68	c preprocessing returned UNSAT
0.00/0.68	c PP set 5 variables
0.00/0.68	c pp time: 597162us (0s)
0.00/0.68	c unsat during subsumption (size 0)
0.00/0.68	c preprocessor returned 62750 variables
0.00/0.68	c preprocessing returned UNSAT
0.00/0.68	c PP set 5 variables
0.00/0.69	c pp time: 592138us (0s)
0.00/0.74	c sended clauses   | 0 | 0 | 0 | 0 |
0.00/0.74	c received clauses | 0 | 0 | 0 | 0 |
0.00/0.74	c join all other threads
0.00/0.74	c joined thread 0
0.00/0.77	c joined thread 1
0.00/0.78	c joined thread 2
0.00/0.78	c joined thread 3
0.00/0.78	c memory usage (vsize): 292 MB
0.00/0.78	s UNSATISFIABLE

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: 935)

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-3265376-1304070367/watcher-3265376-1304070367 -o /tmp/evaluation-result-3265376-1304070367/solver-3265376-1304070367 -C 4800 -W 1300 -M 15500 HOME/priss.sh HOME HOME/instance-3265376-1304070367.cnf 45152161 4800 15500 4 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 4800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 4830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 8.08 8.09 8.07 5/182 3680
/proc/meminfo: memFree=19177984/32950904 swapFree=67082284/67111528
[pid=3680] ppid=3678 vsize=8700 CPUtime=0 cores=0,2,4,6
/proc/3680/stat : 3680 (priss.sh) S 3678 3680 1762 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 518636517 8908800 252 33554432000 4194304 4922060 140735345704960 18446744073709551615 237278698629 0 65536 4100 65538 18446744071562232103 0 0 17 2 0 0 0
/proc/3680/statm: 2175 252 211 178 0 68 0

[startup+0.0895909 s]
/proc/loadavg: 8.08 8.09 8.07 5/182 3680
/proc/meminfo: memFree=19177984/32950904 swapFree=67082284/67111528
[pid=3680] ppid=3678 vsize=8700 CPUtime=0 cores=0,2,4,6
/proc/3680/stat : 3680 (priss.sh) S 3678 3680 1762 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 518636517 8908800 252 33554432000 4194304 4922060 140735345704960 18446744073709551615 237278698629 0 65536 4100 65538 18446744071562232103 0 0 17 2 0 0 0
/proc/3680/statm: 2175 252 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101416 s]
/proc/loadavg: 8.08 8.09 8.07 5/182 3680
/proc/meminfo: memFree=19177984/32950904 swapFree=67082284/67111528
[pid=3680] ppid=3678 vsize=8700 CPUtime=0 cores=0,2,4,6
/proc/3680/stat : 3680 (priss.sh) S 3678 3680 1762 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 518636517 8908800 252 33554432000 4194304 4922060 140735345704960 18446744073709551615 237278698629 0 65536 4100 65538 18446744071562232103 0 0 17 2 0 0 0
/proc/3680/statm: 2175 252 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.300415 s]
/proc/loadavg: 8.08 8.09 8.07 5/182 3680
/proc/meminfo: memFree=19177984/32950904 swapFree=67082284/67111528
[pid=3680] ppid=3678 vsize=8700 CPUtime=0 cores=0,2,4,6
/proc/3680/stat : 3680 (priss.sh) S 3678 3680 1762 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 518636517 8908800 252 33554432000 4194304 4922060 140735345704960 18446744073709551615 237278698629 0 65536 4100 65538 18446744071562232103 0 0 17 2 0 0 0
/proc/3680/statm: 2175 252 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.700393 s]
/proc/loadavg: 8.08 8.09 8.07 5/182 3680
/proc/meminfo: memFree=19177984/32950904 swapFree=67082284/67111528
[pid=3680] ppid=3678 vsize=8700 CPUtime=0 cores=0,2,4,6
/proc/3680/stat : 3680 (priss.sh) S 3678 3680 1762 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 518636517 8908800 252 33554432000 4194304 4922060 140735345704960 18446744073709551615 237278698629 0 65536 4100 65538 18446744071562232103 0 0 17 2 0 0 0
/proc/3680/statm: 2175 252 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

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

Child status: 20
Real time (s): 0.800165
CPU time (s): 2.85156
CPU user time (s): 2.6076
CPU system time (s): 0.243962
CPU usage (%): 356.372
Max. virtual memory (cumulated for all children) (KiB): 8700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6076
system time used= 0.243962
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 39036
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= 14136
involuntary context switches= 56

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node121 at 2011-04-29 11:46:08
IDJOB=3265376
IDBENCH=85572
IDSOLVER=1603
FILE ID=node121/3265376-1304070367
RUNJOBID= node121-1304060729-2748
PBS_JOBID= 13170425
Free space on /tmp= 72648 MiB

SOLVER NAME= priss 1.0
BENCH NAME= SAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
COMMAND LINE= DIR/priss.sh DIR BENCHNAME RANDOMSEED TIMELIMIT MEMLIMIT NBCORE
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3265376-1304070367/watcher-3265376-1304070367 -o /tmp/evaluation-result-3265376-1304070367/solver-3265376-1304070367 -C 4800 -W 1300 -M 15500  HOME/priss.sh HOME HOME/instance-3265376-1304070367.cnf 45152161 4800 15500 4

TIME LIMIT= 4800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 384c65902b197ca2c64d2ee8a3c64089
RANDOM SEED=45152161

node121.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		: 2666.817
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	: 5333.63
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		: 2666.817
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	: 5226.07
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		: 2666.817
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	: 5332.84
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		: 2666.817
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		: 2666.817
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	: 5332.82
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		: 2666.817
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		: 2666.817
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		: 2666.817
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:     32950904 kB
MemFree:      19178264 kB
Buffers:       2181148 kB
Cached:       10221692 kB
SwapCached:       2776 kB
Active:        9919400 kB
Inactive:      3331900 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950904 kB
LowFree:      19178264 kB
SwapTotal:    67111528 kB
SwapFree:     67082284 kB
Dirty:            4712 kB
Writeback:           0 kB
AnonPages:      846312 kB
Mapped:          14656 kB
Slab:           455216 kB
PageTables:       6428 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586980 kB
Committed_AS:  1069940 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= 72648 MiB
End job on node121 at 2011-04-29 11:46:09