Trace number 459374

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, and are wall clock time (not CPU 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
PBS4_v2 2007-03-23Signal 0.619904 0.622769

General information on the benchmark

Namenormalized-PB07/PURE-SAT/SAT07/
industrial/grieu/vmpc_25.opb
MD5SUM529192d7c9e2e9afeeafcce9f8db54ed
Bench CategoryPURE-SAT (instances containing only clauses)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark8.14276
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of variables625
Total number of constraints76775
Number of constraints which are clauses76775
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint25
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 26
Number of bits of the biggest sum of numbers5
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/459374-1178653563/instance-459374-1178653563.opb ......

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/459374-1178653563/instance-459374-1178653563.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-459374-1178653563 -o ROOT/results/node5/solver-459374-1178653563 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/459374-1178653563/instance-459374-1178653563.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 28549
/proc/meminfo: memFree=1677184/2055920 swapFree=4150040/4192956
[pid=28549] ppid=28547 vsize=1456 CPUtime=0
/proc/28549/stat : 28549 (PBS4_SAT07v2) R 28547 28549 28054 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 341393996 1490944 132 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28549/statm: 364 132 86 219 0 141 0

[startup+0.0899639 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 28549
/proc/meminfo: memFree=1677184/2055920 swapFree=4150040/4192956
[pid=28549] ppid=28547 vsize=2144 CPUtime=0.08
/proc/28549/stat : 28549 (PBS4_SAT07v2) R 28547 28549 28054 0 -1 4194304 398 0 0 0 8 0 0 0 18 0 1 0 341393996 2195456 326 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135057549 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28549/statm: 536 326 86 219 0 313 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2144

[startup+0.101965 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 28549
/proc/meminfo: memFree=1677184/2055920 swapFree=4150040/4192956
[pid=28549] ppid=28547 vsize=2144 CPUtime=0.09
/proc/28549/stat : 28549 (PBS4_SAT07v2) R 28547 28549 28054 0 -1 4194304 420 0 0 0 9 0 0 0 18 0 1 0 341393996 2195456 348 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28549/statm: 536 348 86 219 0 313 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2144

[startup+0.301987 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 28549
/proc/meminfo: memFree=1677184/2055920 swapFree=4150040/4192956
[pid=28549] ppid=28547 vsize=5228 CPUtime=0.29
/proc/28549/stat : 28549 (PBS4_SAT07v2) R 28547 28549 28054 0 -1 4194304 1142 0 0 0 29 0 0 0 19 0 1 0 341393996 5353472 780 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134588793 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28549/statm: 1307 780 86 219 0 1084 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5228

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

[startup+0.50201 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 28549
/proc/meminfo: memFree=1677184/2055920 swapFree=4150040/4192956
[pid=28549] ppid=28547 vsize=7292 CPUtime=0.49
/proc/28549/stat : 28549 (PBS4_SAT07v2) R 28547 28549 28054 0 -1 4194304 1978 0 0 0 48 1 0 0 21 0 1 0 341393996 7467008 1231 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134588793 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28549/statm: 1823 1231 86 219 0 1600 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 7292

[startup+0.602021 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 28549
/proc/meminfo: memFree=1677184/2055920 swapFree=4150040/4192956
[pid=28549] ppid=28547 vsize=10104 CPUtime=0.59
/proc/28549/stat : 28549 (PBS4_SAT07v2) R 28547 28549 28054 0 -1 4195840 2313 0 0 0 57 2 0 0 21 0 1 0 341393996 10346496 1561 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134561478 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28549/statm: 2526 1561 90 219 0 2303 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 10104

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 0.622769
CPU time (s): 0.619904
CPU user time (s): 0.572912
CPU system time (s): 0.046992
CPU usage (%): 99.54
Max. virtual memory (cumulated for all children) (KiB): 10104

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.572912
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2697
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= 8
involuntary context switches= 5

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Tue May  8 19:46:03 UTC 2007

IDJOB= 459374
IDBENCH= 47835
IDSOLVER= 200
FILE ID= node5/459374-1178653563

PBS_JOBID= 5218002

Free space on /tmp= 66560 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/PURE-SAT/SAT07/industrial/grieu/vmpc_25.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/459374-1178653563/instance-459374-1178653563.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node5/convwatcher-459374-1178653563 -o ROOT/results/node5/conversion-459374-1178653563 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/459374-1178653563/instance-459374-1178653563.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-459374-1178653563 -o ROOT/results/node5/solver-459374-1178653563 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/459374-1178653563/instance-459374-1178653563.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  529192d7c9e2e9afeeafcce9f8db54ed

RANDOM SEED= 149143341

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1677528 kB
Buffers:         37704 kB
Cached:         268592 kB
SwapCached:      11060 kB
Active:         120208 kB
Inactive:       209608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1677528 kB
SwapTotal:     4192956 kB
SwapFree:      4150040 kB
Dirty:            4564 kB
Writeback:           0 kB
Mapped:          30404 kB
Slab:            34144 kB
Committed_AS: 13920456 kB
PageTables:       1724 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66555 MiB

End job on node5 on Tue May  8 19:46:04 UTC 2007