Trace number 3276138

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
SAT09 reference solver: clasp 1.2.0-SAT09-32UNSAT 0.400938 0.40192

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 benchmark0.372942
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 

0.39/0.40	c clasp version 1.2.0-SAT09 
0.39/0.40	c Reading from ...665820/instance-3276138-1303665820.cnf
0.39/0.40	c Reading      : Done(0.050s)
0.39/0.40	c Preprocessing: |-Done(0.310s)
0.39/0.40	
0.39/0.40	c Models    : 0     
0.39/0.40	c Time         : 0.360s (Solve: 0.000s)
0.39/0.40	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-3276138-1303665820/watcher-3276138-1303665820 -o /tmp/evaluation-result-3276138-1303665820/solver-3276138-1303665820 -C 5000 -W 5100 -M 15500 HOME/clasp --file=HOME/instance-3276138-1303665820.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

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

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 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: 1.92 1.98 1.96 2/175 22814
/proc/meminfo: memFree=18654836/32951132 swapFree=67111528/67111528
[pid=22814] ppid=22812 vsize=6820 CPUtime=0 cores=0,2,4,6
/proc/22814/stat : 22814 (clasp) R 22812 22814 21178 0 -1 4202496 1436 0 0 0 0 0 0 0 20 0 1 0 478181623 6983680 1091 33554432000 134512640 136057169 4291540064 18446744073709551615 134834619 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/22814/statm: 1705 1095 141 378 0 1325 0

[startup+0.0851601 s]
/proc/loadavg: 1.92 1.98 1.96 2/175 22814
/proc/meminfo: memFree=18654836/32951132 swapFree=67111528/67111528
[pid=22814] ppid=22812 vsize=16856 CPUtime=0.07 cores=0,2,4,6
/proc/22814/stat : 22814 (clasp) R 22812 22814 21178 0 -1 4202496 4680 0 0 0 7 0 0 0 20 0 1 0 478181623 17260544 3845 33554432000 134512640 136057169 4291540064 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/22814/statm: 4214 3846 165 378 0 3834 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16856

[startup+0.101165 s]
/proc/loadavg: 1.92 1.98 1.96 2/175 22814
/proc/meminfo: memFree=18654836/32951132 swapFree=67111528/67111528
[pid=22814] ppid=22812 vsize=18088 CPUtime=0.09 cores=0,2,4,6
/proc/22814/stat : 22814 (clasp) R 22812 22814 21178 0 -1 4202496 4925 0 0 0 9 0 0 0 20 0 1 0 478181623 18522112 4090 33554432000 134512640 136057169 4291540064 18446744073709551615 134771789 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/22814/statm: 4522 4090 165 378 0 4142 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 18088

[startup+0.301122 s]
/proc/loadavg: 1.92 1.98 1.96 2/175 22814
/proc/meminfo: memFree=18654836/32951132 swapFree=67111528/67111528
[pid=22814] ppid=22812 vsize=20704 CPUtime=0.29 cores=0,2,4,6
/proc/22814/stat : 22814 (clasp) R 22812 22814 21178 0 -1 4202496 5589 0 0 0 29 0 0 0 21 0 1 0 478181623 21200896 4754 33554432000 134512640 136057169 4291540064 18446744073709551615 134768447 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/22814/statm: 5176 4754 170 378 0 4796 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 20704

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

[startup+0.401105 s]
/proc/loadavg: 1.92 1.98 1.96 2/175 22814
/proc/meminfo: memFree=18654836/32951132 swapFree=67111528/67111528
[pid=22814] ppid=22812 vsize=12020 CPUtime=0.39 cores=0,2,4,6
/proc/22814/stat : 22814 (clasp) R 22812 22814 21178 0 -1 4202496 5727 0 0 0 39 0 0 0 21 0 1 0 478181623 12308480 2684 33554432000 134512640 136057169 4291540064 18446744073709551615 135433867 0 0 4096 16386 0 0 0 17 4 0 0 0
/proc/22814/statm: 3005 2684 177 378 0 2625 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 12020

Child status: 20
Real time (s): 0.40192
CPU time (s): 0.400938
CPU user time (s): 0.39394
CPU system time (s): 0.006998
CPU usage (%): 99.7556
Max. virtual memory (cumulated for all children) (KiB): 20704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.39394
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5727
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= 2
involuntary context switches= 1

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node131 at 2011-04-24 19:23:40
IDJOB=3276138
IDBENCH=85572
IDSOLVER=1677
FILE ID=node131/3276138-1303665820
RUNJOBID= node131-1303660817-22555
PBS_JOBID= 13150717
Free space on /tmp= 72136 MiB

SOLVER NAME= SAT09 reference solver: clasp 1.2.0-SAT09-32
BENCH NAME= SAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
COMMAND LINE= HOME/clasp --file=BENCHNAME --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3276138-1303665820/watcher-3276138-1303665820 -o /tmp/evaluation-result-3276138-1303665820/solver-3276138-1303665820 -C 5000 -W 5100 -M 15500  HOME/clasp --file=HOME/instance-3276138-1303665820.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 384c65902b197ca2c64d2ee8a3c64089
RANDOM SEED=1113633755

node131.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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.83
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.77
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:     32951132 kB
MemFree:      18654992 kB
Buffers:        998348 kB
Cached:       12675072 kB
SwapCached:          0 kB
Active:        4306240 kB
Inactive:      9477328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      18654992 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            5060 kB
Writeback:           0 kB
AnonPages:      109644 kB
Mapped:          16048 kB
Slab:           450952 kB
PageTables:       5092 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   254532 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72136 MiB
End job on node131 at 2011-04-24 19:23:40