Trace number 247461

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
CSPtoSAT+minisat 0.3? (MO) 17.2344 17.2461

General information on the benchmark

Namerandom/rand-8-20-5/
rand-8-20-5-18-800-7_ext.xml
MD5SUM0ab3dbb9edfa2aa092a5a9fe1825fa3f
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark20.2569
SatisfiableYES
(Un)Satisfiability was proved
Number of variables20
Number of constraints18
Maximum constraint arity8
Maximum domain size5
Number of constraints which are defined in extension18
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c This is CSPtoSAT+minisat version 0.3
0.01	c (c) 2006 roussel@cril.univ-artois.fr
0.01	
0.01	c This solver internally uses a modified version of MiniSat2 version 061112
0.01	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.01	
0.01	c parsing...
0.63	c preparing clauses for relation R0
1.45	c preparing clauses for relation R1
2.29	c preparing clauses for relation R2
3.13	c preparing clauses for relation R3
3.98	c preparing clauses for relation R4
4.82	c preparing clauses for relation R5
5.65	c preparing clauses for relation R6
6.48	c preparing clauses for relation R7
7.32	c preparing clauses for relation R8
8.16	c preparing clauses for relation R9
8.99	c preparing clauses for relation R10
9.83	c preparing clauses for relation R11
10.67	c preparing clauses for relation R12
11.50	c preparing clauses for relation R13
12.34	c preparing clauses for relation R14
13.19	c preparing clauses for relation R15
14.02	c preparing clauses for relation R16
14.85	c preparing clauses for relation R17
15.09	c instanciating clauses for relation R0 (supports) and variables V0 V1 V2 V8 V11 V12 V14 V15 
15.69	c instanciating clauses for relation R1 (supports) and variables V0 V1 V4 V7 V9 V14 V15 V17 
16.30	c instanciating clauses for relation R2 (supports) and variables V0 V1 V5 V6 V8 V15 V17 V19 
16.90	c instanciating clauses for relation R3 (supports) and variables V0 V1 V6 V7 V11 V14 V16 V18

Verifier Data (download as text)

ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node72/watcher-247461-1168093712 -o ROOT/results/node72/solver-247461-1168093712 -C 1800 -M 900 /tmp/evaluation/247461-1168093712/CSPtoSAT+minisat /tmp/evaluation/247461-1168093712/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 0.72 1.46 1.64 5/86 5192
/proc/meminfo: memFree=1319240/2055920 swapFree=4192812/4192956
[pid=5191] ppid=5189 vsize=5396 CPUtime=0
/proc/5191/stat : 5191 (CSPtoSAT+minisa) R 5189 5191 4826 0 -1 4194304 67 0 0 0 0 0 0 0 18 0 1 0 157781794 5525504 51 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 2498308 0 0 4096 0 0 0 0 17 1 0 0
/proc/5191/statm: 1357 51 39 52 0 24 0

[startup+0.104106 s]
/proc/loadavg: 0.72 1.46 1.64 5/86 5192
/proc/meminfo: memFree=1319240/2055920 swapFree=4192812/4192956
[pid=5191] ppid=5189 vsize=10008 CPUtime=0.09
/proc/5191/stat : 5191 (CSPtoSAT+minisa) R 5189 5191 4826 0 -1 4194304 2501 0 0 0 8 1 0 0 18 0 1 0 157781794 10248192 1534 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4158518086 0 0 4096 0 0 0 0 17 1 0 0
/proc/5191/statm: 2502 1534 698 52 0 870 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10008

[startup+0.512144 s]
/proc/loadavg: 0.72 1.46 1.64 5/86 5192
/proc/meminfo: memFree=1319240/2055920 swapFree=4192812/4192956
[pid=5191] ppid=5189 vsize=12300 CPUtime=0.49
/proc/5191/stat : 5191 (CSPtoSAT+minisa) R 5189 5191 4826 0 -1 4194304 3263 0 0 0 48 1 0 0 21 0 1 0 157781794 12595200 2150 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 2977422 0 0 4096 0 0 0 0 17 1 0 0
/proc/5191/statm: 3075 2150 698 52 0 1443 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 12300

[startup+1.33222 s]
/proc/loadavg: 0.90 1.49 1.65 3/86 5192
/proc/meminfo: memFree=1283872/2055920 swapFree=4192812/4192956
[pid=5191] ppid=5189 vsize=50044 CPUtime=1.31
/proc/5191/stat : 5191 (CSPtoSAT+minisa) R 5189 5191 4826 0 -1 4194304 18800 0 0 0 123 8 0 0 25 0 1 0 157781794 51245056 9553 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134580395 0 0 4096 0 0 0 0 17 1 0 0
/proc/5191/statm: 12511 9553 702 52 0 10879 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 50044

[startup+2.96836 s]
/proc/loadavg: 0.90 1.49 1.65 3/86 5192
/proc/meminfo: memFree=1251552/2055920 swapFree=4192812/4192956
[pid=5191] ppid=5189 vsize=124872 CPUtime=2.95
/proc/5191/stat : 5191 (CSPtoSAT+minisa) R 5189 5191 4826 0 -1 4194304 49850 0 0 0 273 22 0 0 25 0 1 0 157781794 127868928 24182 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134580374 0 0 4096 0 0 0 0 17 1 0 0
/proc/5191/statm: 31218 24182 702 52 0 29586 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 124872

[startup+6.24767 s]
/proc/loadavg: 0.99 1.50 1.65 3/86 5192
/proc/meminfo: memFree=1132960/2055920 swapFree=4192812/4192956
[pid=5191] ppid=5189 vsize=274264 CPUtime=6.23
/proc/5191/stat : 5191 (CSPtoSAT+minisa) R 5189 5191 4826 0 -1 4194304 112021 0 0 0 576 47 0 0 25 0 1 0 157781794 280846336 53509 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134580211 0 0 4096 0 0 0 0 17 1 0 0
/proc/5191/statm: 68566 53510 702 52 0 66934 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 274264

[startup+12.7093 s]
/proc/loadavg: 1.07 1.51 1.65 3/86 5192
/proc/meminfo: memFree=884832/2055920 swapFree=4192812/4192956
[pid=5191] ppid=5189 vsize=571484 CPUtime=12.69
/proc/5191/stat : 5191 (CSPtoSAT+minisa) R 5189 5191 4826 0 -1 4194304 235902 0 0 0 1170 99 0 0 25 0 1 0 157781794 585199616 111704 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 3001954 0 0 4096 0 0 0 0 17 1 0 0
/proc/5191/statm: 142871 111704 702 52 0 141239 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 571484



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+17.1227 s]
/proc/loadavg: 1.14 1.51 1.65 3/86 5192
/proc/meminfo: memFree=559520/2055920 swapFree=4192812/4192956
[pid=5191] ppid=5189 vsize=922828 CPUtime=17.11
/proc/5191/stat : 5191 (CSPtoSAT+minisa) R 5189 5191 4826 0 -1 4194304 338685 0 0 0 1570 141 0 0 25 0 1 0 157781794 944975872 189618 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 2974669 0 0 4096 0 0 0 0 17 1 0 0
/proc/5191/statm: 230707 189618 705 52 0 229075 0
Current children cumulated CPU time (s) 17.11
Current children cumulated vsize (KiB) 922828

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 17.2461
CPU time (s): 17.2344
CPU user time (s): 15.7036
CPU system time (s): 1.53077
CPU usage (%): 99.9318
Max. virtual memory (cumulated for all children) (KiB): 922828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.7036
system time used= 1.53077
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 338691
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= 12
involuntary context switches= 55

runsolver used 0.021996 s user time and 0.051992 s system time

The end

Launcher Data (download as text)

Begin job on node72 on Sat Jan  6 14:28:47 UTC 2007


IDJOB= 247461
IDBENCH= 11128
FILE ID= node72/247461-1168093712

PBS_JOBID= 3476645

Free space on /tmp= 66528 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-8-20-5/rand-8-20-5-18-800-7_ext.xml
COMMAND LINE= /tmp/evaluation/247461-1168093712/CSPtoSAT+minisat /tmp/evaluation/247461-1168093712/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node72/watcher-247461-1168093712 -o ROOT/results/node72/solver-247461-1168093712 -C 1800 -M 900  /tmp/evaluation/247461-1168093712/CSPtoSAT+minisat /tmp/evaluation/247461-1168093712/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  0ab3dbb9edfa2aa092a5a9fe1825fa3f

RANDOM SEED= 683747883

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.223
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		: 3000.223
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:       1320768 kB
Buffers:         44488 kB
Cached:         508148 kB
SwapCached:          0 kB
Active:         244040 kB
Inactive:       417988 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1320768 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           26144 kB
Writeback:           0 kB
Mapped:         131776 kB
Slab:            57804 kB
Committed_AS:  2783844 kB
PageTables:       2480 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= 66528 MiB



End job on node72 on Sat Jan  6 14:29:08 UTC 2007